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Technical Specification T.N. No. NESCO/CAPEX/SUPPLY & INSTALLATION /15 ,Gr.B

North Eastern Electricity Supply Company of Odisha

Limited (NESCO)

SECTION –IV

TECHNICAL SPECIFICATION

GROUP -B

TENDER NOTICE NO.

NESCO/ CAPEX/ SUPPLY & INSTALLATION / 15 Dt..21.01.13


SCHEDULE OF MATERIALS TENDERED:

Group Sl. No.

Item Description

Unit

Quantity

B

1 Supply & Installation of Earthing of Sub-station for 100KVA and above S/S at different locations.

No. 918

2 Supply & Erection of Capacitor Bank at different locations. No. 3

3 Supply & Installation of PSC Pole against replacement of damaged poles at different locations.

i) 8 m x 200 Kg. PSC Pole No. 5800

ii) 9 m x 300 Kg PSC pole No. 2900

4 Supply & Installation of DTR Metering for 25 KVA Transformers & below capacity at different locations.

No. 8000

Note : (i) Quantity may vary.

(ii) Location will be finalized after joint survey.


SECTION –IV

GROUP – B / 1

TECHINICAL SPECIFICATIONS

PIPE EARTHING

1. 0 SCOPE:

1.1 This specification covers design, manufacture, testing, supply and installation of Earthing

Device (Heavy duty) for use of earthing of Sub-station of transformer capacity 100 KVA or

more at different locations under NESCO area .

1.2 Excavation of earth pit with proper size , Installation of pipe earthing includes supply of

earth electrodes, GI flats, GI nuts & bolts and earth chamber made of brick masonry with

RRC slab cover.

1.3 Each Sub-station earthing consist of 5 nos. earth pits connection with 50x6 mm GI flat for

neutral earthing ,25x4 mm GI flat for Transformer body, AB switch, HG fuse, LA, DB

earthing.

2.0 GENERAL REQUIREMENTS

2.1 Earthing pipe must be made out 40 mm nominal bore & 3.2 mm wall thickness

medium gauge(no minus Tolerance allowed) Hot Dip G.I pipe (as per IS ;- 1239, Part-

1, 1990 & REC construction Standard –J-2) of reputed Make & 2.5 mtr. long . The pipe

electrode shall be cut tapered at the bottom side for a length of 75 mm and welded clamp

at top end .

2.2 The pipe shall be in one piece and no joint shall be allowed in the electrode.

2.3 Staggered drills hole of 12 mm Dia of interval of 150mm up to 2 meter from bottom

side shall be made before galvanization. 2.4 The GI Earthing Clamp/ Strip (C- Clamp Type) is to be of 50mm width, 6mm thickness & flange length of 65 mm to be welded with pipe before galvanization . This should be suitable for termination of 4 nos of GI Flat earth electrodes. The Clamp/ Strip & Earthing pipe after fabrication will be hot dip galvanized confirming to IS: 2629/85 with latest amendments. The clamp shall have two holes in both sides suitable for 5/8 x 2” Bolt & provided with two GI Bolts of 5/8 x 2” long half threaded with spring washer 2.5 The galvanization tests are to be conducted as per IS: 2633/72 & IS: 6745/72 & its latest amendments.

The weight of zinc deposited shall be in accordance with that stated in Standard IS 2629 and shall not less than 0.61kg/m² with a minimum thickness of 86 microns for items of thickness more than 5mm, 0.46kg/m² (64 microns) for items of thickness between 2mm and 5mm and 0.33kg/m² (47 microns) for items less than 2mm thick.



G.I. Flat (50 x 6 mm) & G.I.Flat (25 x 4 mm)

1.0 SCOPE :

The specification covers manufacture, testing and supply & erection of Galvanized Steel flat for Earthing arrangements. 50x6 mm GI flat for connection of Transformer neutral earthing and 25x4 mm GI flat for connection of Transformer body, AB Switch, HG fuse, DB, LA etc. earthing

2.0 APPLICABLE STANDARDS:

Materials shall conform to the latest applicable Indian standards. In case bidders offer steel section and supports conforming to any other international specifications which shall be equivalent or better than IS, the same is also acceptable. Sl. No. Standard No. Title 1 IS:2062 Grade „A‟ Quality Specification for M.S. Channel

and M.S. Flat 2 IS:2062 Chemical and Physical

Composition of material 3 IS:1852 Rolling and Cutting Tolerances for

Hot Rolled Steel products 3.0 RAW MATERIAL :

The steel section shall be re-rolled from the BILLETS/INGOTS of tested quality as per latest version of IS: 2830 or to any equivalent International standard and shall be arranged by the bidder from their own sources. The chemical composition and physical properties of the finished materials shall be as per the relevant standards.

4.0 TEST

Steel sections shall be tested in IS approved laboratory or standard laboratory of the Bidder country having all facilities available for conducting all the tests as prescribed in relevant IS or IEC or to any equivalent International laboratory or Institutions.

The Bidders are required to specifically indicate that;

They hold valid IS (or equivalent IEC) License. Steel Section offered are bearing requisite IS certification or equivalent IEC marks.

The Bidders are required to submit a copy of the valid IS (or equivalent IEC) License clearly indicating size and range of product against respective ISS or any equivalent International Standards along with their offer.

5.0 PHYSICAL & CHEMICAL PROPERTIES

Length

The GS Flat to be supplied shall be in 5.5 meters to 13 meters lengths.

Weighment The weighment of GS Flat shall be witnessed by the consignee at the time of taking delivery. The weight recorded in the material receipt certificate issued by the consignees shall be final.

6.0 Chemical composition and physical properties of M.S.Channels and M.S.Flat conforming to IS: 2062/84L

composition.


Chemical Composition For Fe 410 WA Grade

1 C - 0.23% MAX. 2 Mn - 1.5% MAX. 3 S - 0.050% MAX. 4 P - 0.050% MAX. 5 SI - 0.40% MAX. 6 CE - 0.42% MAX.

(Carbon Equivalent)

7.0 Mechanical Properties

1. Tensile strength Kgf/mm²ˉ - 410 2. Yield stress Min. for thickness/diameter

<20 mm - 26 Kgf/mm² OR 250N/mm² 20-40 mm - 24Kgf/mm² OR 240N/mm² 40 mm - 23Kgf/mm² OR 230N/mm²

3. Elongation % - 23% 4. Bend Test (Internal Dia) - Min-3t (this the thickness of the material)

8.0 MARKING

It is desirable that the Bidders should put his identification marks on the finished materials. The mark shall be in “legible English letters”

9.0 INSPECTION AND TEST CERTIFICATE

9.1 The materials to be supplied will be subject to inspection and approval by the purchaser‟s representative

before dispatch and / or on arrival at the destination. Inspection before dispatch shall not, however, relieve the bidders of his responsibility to supply the steel section strictly in accordance with the specification.

The bidders shall abide by all the statutory provisions, acts such as the Indian Electricity Act, Indian factory Act, Indian Boiler Act etc,. and corresponding rules and regulations as may be applicable and as amended from time to time. The purchaser‟s representative shall be entitled at all reasonable time during manufacture to inspect, examine and test at the bidder‟s premises the materials and workmanship of the steel section to be supplied. As soon as the steel section are ready for testing , the bidder‟s shall intimate the purchaser well in advance, so that action may be taken for getting the material inspected. The material shall not be dispatched unless waiver of inspection is obtained or inspected by the purchaser‟s authorized representative. The test certificate shall be in accordance with the latest version of the relevant Indian Standard or any equivalent International standards. The acceptance of any batch /lot shall in no way relieve the bidder of any of his responsibilities for meeting all the requirements of the specification and shall not prevent subsequent rejection of any item if the same later found defective.

9.2 All conductors burred in earth and concrete and above ground level shall be galvanized steel. Galvanized steel shall be subject to four one minute dips in copper sulphate solution as per IS:2633/1922.

9.3 METHOD OF GALVANISING:

Sl. No. Tests For GS Flat

1 Dip test 4 dips of 1 min each 2 Mass of Zinc coating 300 gram/sq.m minimum

9.4 Pre dispatch inspection shall be performed to witness following tests:


Freedom from defects, Verification of dimensions Galvanization tests Mechanical tests Chemical composition tests

These tests are to be performed and certified at Govt. recognized laboratory

MS flat shall conform to IS 2062 & its latest amendments for steel & Galvanization as per IS 4759 & its Latest amendments.

The flat shall be coated with Zn 98 Zinc grade.

The minimum Zinc coating shall be 610 gm/sqm for thickness more than 5 mm and 460 gm/sqm for item thickness less than 5 mm.

9.5 Inspection & Rejection :

The representative of Purchaser shall pick up samples at random from the GI Flats offered for

carrying out routine tests as per specified IS.

The representative shall make visual inspection on each & every GI flats.

The purchaser reserves the right to reject on inspection after the same is received at destination.


SECTION –IV

GROUP – B / 2


11KV OUTDOOR TYPE SWITCHED CAPACITOR BANK

AT SUB-STATIONS (33/11KV)

Works Description Location

Design, Manufacture, Supply, Installation &

commissioning of 11 KV Automatically Switched

Capacitor Banks along with the civil work involved, in

the following 33/11 KV substations, on Turnkey Basis :

3nos to be decided after joint verification

1.0 SCOPE : 1.1 The specification covers design, engineering manufacture, testing at manufactures works, supply

and delivery, erection, testing and commissioning of 11 KV outdoor types 3 phase automatically

switched capacitor banks at site along with all necessary equipments in all respect with the civil

work involved in 33/11 KV substations on Turnkey Basis.

1.2 The specification covers 3 phase, 50 Hz, Out door type automatically switched shunt capacitor

bank intended for installation at 11 KV side of 33/ 11 KV power transformers in various sub-

stations. The equipment covered in this specification comprises of Capacitor banks in steps, 0.2 %

Series Reactors, capacitor switch, HT Fuses, RVT, CT, VCB etc. or any other means of protection

to protect the capacitor Banks / Units. (In case three phase MPP type capacitor units are offered,

there is no need of RVT as asymmetry protection is not required with MPP 3 phase capacitors).

1.3 Applicable Standard: Unless otherwise modified in this specification, the capacitor shall comply with

latest version of IS: 13925:1998 or IEC 60871 - 1. The other components such as Vacuum Circuit

Breaker, Isolator, CT, PT, LA, Vacuum Contactors, HT fuses, Series Reactors, Auxiliary equipment

shall comply with the latest version of relevant Indian Standards/ International standards.

1.4 The bidder should submit BOM/BOQ quoting per meter rates of HT XLPE cable separately being variable length required for each substation.


2.0 APPLICATION:

The basic purpose of Medium Voltage capacitors installed at 11 KV side of 33 KV substations is to

maintain power factor above a desired level. The conventional capacitor bank consist of the Capacitors,

Offload isolators and Load Break Switch or Circuit Breakers for ON/OFF operations. Any sub-station load

on Transformer changes during a 24 Hour daily load cycle. This variation of load depends upon type of

load i.e. Urban Load, Rural load, Agricultural Load, Industrial load etc. The load pattern will be different for

different loads. Thus load variation will follow certain pattern and which could be divided into four or six

periods in a 24 Hour daily load cycle. Power factor would also vary and at the same time actual

requirement of Capacitors in circuit will also vary.

In conventional capacitor banks, there is no arrangement to switch IN/OUT capacitor bank depending

upon varying load vis-a-vis reactive power requirement conditions. ON/OFF operations are purely manual

and only a single bank is manually switched ON or OFF to take care of the total reactive power

requirements of a sub-station. This has the following drawbacks:-

The ON/OFF operation of capacitor bank is depending on one operator and it is difficult to control on switching ON/OFF the capacitor bank as per varying load condition.

There are only two possible conditions in manually switched banks, complete bank is either fully in their circuit or out of circuit and reactive power compensation cannot be closely matched with the varying load condition.

This results in over compensation or under compensation of reactive power at varying load condition.

• If one of the capacitor units from the capacitor bank is failed, whole capacitor bank will become idle.

Over or under compensation means that the very purpose of installing the capacitor bank is defeated as over-compensation during low load conditions can nullify any advantages gained through satisfactory compensation at higher load conditions.

Conventional capacitor bank is rated in such a way that it can be effectively used between 50% to 80% load on the power transformer. At lower loads this capacitor bank has to be switched off and at higher loads the capacitor bank would fall below the actual requirement of reactive power compensation.

Modern day loads and it’s variations call for more effective control of the capacitor banks so that its

utilization is optimal. If capacitor banks are split into steps and are provided with switching arrangements

as required it will help the Electricity Supply Authority to maintain the power factor at desired level through

out the day. The load variation in a sub-station has been observed to change from 15/20 % to 80 %.

When conventional fixed type capacitor banks are used the capacitor bank will provide compensation of

certain level and in an event the bank is not removed from the circuit at low load, it will provide

overcompensation to the system.

Following are some of the advantages to propose the switched capacitor Banks for systems up to 11 KV.


If steps are provided with capacitor banks to switch them as required it will help the Electricity Supply Authority to maintain the power factor at desired level through out the day.

There is no manual involvement in switching the capacitor banks ON/OFF, thus avoiding any manual errors.

The proposed switching of capacitor steps is totally automatic, with microprocessor based control.

There will be no instances of over compensation or under compensation of considerable effect.

In conventional fixed type capacitor bank removing required capacitor cells from circuit is very cumbersome process as the lineman/operator has to switch off Breaker, Isolator, disconnect the fuse to isolate the capacitor cells and switch ON all the equipments once again. This will again depend upon availability of trained man power for such purpose.

3.0 Capacitor banks:

The capacitor banks are for use in a 3 phase 50 Hz 11 KV system. The suitable unit ratings are as

under:-

S.No. Tr. Capacity Total KVAR Capacitor Steps /(Automatic Switching

Stages)

1 3.15 MVA 1500 KVAR 150+300+450+600/ (150, 300, 450, 600,

750, 900, 1050, 1200, 1350, 1500)

Each capacitor unit should be provided with external fuse 12 KV class and suitable current rating.

Capacitor shall meet following specifications:

3.1. Temperature Category: The capacitor shall be suitable for upper limit of temperature category 50

Deg. C as per IS: 13925 or IEC 60871-1.

3.2. Type of Capacitors: 3 Phase MPP Dry type capacitors with self healing features will be preferred.

However, bidder is free to offer APP capacitors.

3.3. Rated Voltage: The rated voltage of 3 phase capacitor banks shall be 12.10 KV (phase to phase).

3.4. Rated Output: The Rated output of 3 phase capacitor banks shall be as shown in the table above at

the medium operational voltage of 12.10 KV. The unit shall be connected in externally / internally star

formation.

3.5 Permissible Overloads: For capacitor covered in this specification, the maximum permissible

overloads with regard to voltage, current and reactive output shall not exceed the limits specified in

IS:13925 or IEC 60871-1.

3.6 Power Loss: The power loss in capacitors shall not exceed 0.2 watt / KVAR (Subject to tolerance of +

10%).


3.7 Discharge device: Suitable discharge device shall be connected across the capacitor unit in

accordance with IS:13925 or IEC 60871-1. The discharge device shall reduce the residual voltage from

the crest value of the rated voltage to 50 V or less within 10 Minutes after the capacitor is disconnected

from the source supply.

3.8. Earthing Connections: The container of each capacitor unit shall be provided with suitable earthing

terminal clearly marked with Earth symbol.

3.9 Protective Fuses :The capacitor units shall be provided with external fuses together with fixing

accessories.

3.10. General Requirements: The capacitor shall have polypropylene film as the dielectric. The

capacitor units can either be APP single phase cells or 3 Phase MPP type. The outside of the capacitor

should have smooth and tidy look and should be corrosion-resistant paint suitable for out-door

applications.

3.11 Marking: The capacitor unit shall be provided with a rating plate and terminal markings as stipulated

in IS: 13925. or IEC 60871-1. The bidder shall submit the type test report along with the bid.

3.12. TESTS: The switched capacitors shall be subjected to all the type, routine and acceptance test in

accordance with IS: 13925 or IEC 60871-1.

4.0 AUTOMATIC CONTROL UNIT

4.1 Switching Arrangement:

The Automatic control unit shall be provided to continuously monitor total load KAVR on secondary side of

the transformer and shall automatically switch ON or switch OFF the capacitor banks through the

operation of 12 KV Vacuum Contactor. Overriding provision shall also be made for electrical switching ON

or OFF of the capacitor switch by the operator from the ACU control box.

4.2 Time Delay:

The switching ON operation will take place after period of 10 minutes. The switching OFF operation of

relevant steps will be instantaneous.

4.3 Controls: The Automatic control unit shall instantly switch OFF the Vacuum Contactor of capacitor

bank in the following contingencies occurring in any of the phases.

a) Voltage increased by 10% above the rated voltage of 11 KV.

b) Power transformer current unbalance or any better option to protect the bank operation (due to single

phasing and for any other reasons) between any of the two phases exceeding 20% of the lowest.

c) Current increases in any capacitor unit by 30% above the rated current (only the relevant capacitor

switch will open).

Current between any of the two phases of the capacitor bank differs more than 15% of the lowest current

of the 3 phases (only the relevant capacitor switch will open)

4.4 Control Power: The AC/DC control voltage for operation of the ACU shall be taken from sub-station

battery/ auxiliary transformer.


5.0 11 KV AUTOMATIC Capacitor Switch:

This specification covers 11 KV,50Hz, outdoor type, automatic capacitor switches suitable for switching of

capacitor banks of KVAR ratings given in table above.

a. RATED VOLTAGE The rated voltage for the capacitor switch shall be 12KV. This represents the highest system voltage corresponding to the nominal system voltage of 11KV. b. RATED CURRENT The standard rated normal current shall be 200A. c. RATED CAPACITIVE SWITCHING CURRENT The rated capacitive switching current shall not be less than 50 amp. Note : The capability of the switch shall also take into account the parallel switching of capacitor bank steps.

d. RATED SHORT TIME CURRENT The rated short time symmetrical current for 1 second shall be 10 KA (rms A.C. component). e. RATED MAKING CURRENT The rated making current shall be 2.5 times the rms value of the a.c. component of rated short time capacity. f. BASIC IMPULSE LEVEL (BIL) The rated basic impulse level of switch to earth as also across the open terminals shall be 75 KV. g. CONTROL SUPPLY The control power for closing the switch shall be 230V single phase AC supply. The closing mechanism shall be suitable for a voltage variation of (+) 10% to (-) 20%.

6.0 DESIGN & CONSTRUCTION REQUIREMENTS 6.1 Type

The switches shall be vacuum type contactor of reputed make. 6.2 The capacitor switches shall be of three phase construction and shall be suitable for remote operation.

6.3 The capacitor switch shall be provided with a mechanical indicator to show whether the contact is in open/closed position, locally, as also through indication on the ACU panel.

6.4 The metallic enclosure of the capacitor switch shall be provided with two earthing terminals marked with the earth symbol.

6.5 The bushings provided on the switch shall have clamp type of terminals to directly receive aluminium conductors up to 10mm dia in both horizontal and vertical directions. The terminal arrangement shall be such as to avoid bimetallic corrosion.

7.0. OPERATING MECHANISM The operating mechanism shall be either solenoid or motor charged spring for which the control supply shall be suitable for 230 V AC.

8.0. MECHANICAL AND ELECTRICAL ENDURANCE


The switch shall be capable of performing not less than 10,000 mechanical operations and 10,000 electrical operations at 50 A capacitive current without getting damaged. 9.0. MARKING

The capacitor switch shall be provided with a legible and indelibly marked name plate with the following : a) Name of the manufacturer, b) Type, designation and serial number. c) Rated voltage and current. d) Rated frequency. e) Number of poles. f) Rated short time current (symmetrical). g) Rated making current. h) Rated capacitive switching current.

10.0 TESTS The switch shall be subjected to the tests in accordance with the IS:9920 (Part-IV). 10.1 Type Tests

Type tests certificate should be submitted to verify the a) Insulation level, including withstand tests at power frequency voltages on auxiliary equipment. b) Making and breaking tests including tests for the rated capacitive current c) Capability of the switch to carry the rated short time current. d) Satisfactory operation and mechanical/electrical endurance.

10.2 Routine Tests a) Power frequency voltage dry tests. b) Voltage tests for auxiliary circuits. c) Measurement of the resistance of the main circuits. d) Tests to prove satisfactory operation.

The bidder shall submit guaranteed technical particulars along with their bid. 11.0 Expulsion Fuses:

Suitable outdoor type 11 KV expulsion fuses along with the mounting insulators etc. to provide proper

protection for the capacitor unit shall form part of the equipment to be supplied.

12 .0 Series Reactors:

25.0: 0.2 % Series reactor per phase per step of capacitor rating for inrush current restriction to be

connected on neutral end as per IS: 5553. The rated voltage shall be 12 KV. The reactor shall be dry type

single phase reactors mounted on post insulators and designed to carry 130 % of rated current

continuously without exceeding the temperature rise & shall be applicable for thermal class of insulation

used. The reactor shall be mounted inside the capacitor cubicle.

25.1 Tests: The series reactor shall be type tested and shall be subjected to routine and acceptance test

in accordance with IS: 5553.

25.2 The bidder shall submit guaranteed technical particulars along with their bid.


13.0 Capacitor Bank Structure:

Capacitor bank shall be outdoor type, each individual step along with required current limiting reactors ,

capacitor switch, RVT etc. shall be mounted on Suitable G.I. mounting and elevating structure , each

capacitor unit shall be provided with an external expulsion fuses .

Bank shall be complete with necessary 11 KV class post insulator ,aluminium bus bar etc.

14.0 SUBMISSION AND APPROVAL OF DRAWINGS:

Following drawings and technical documents shall be submitted along with the bid.

• Technical data sheet

• GA drawings.

• Bill of Material.

General Technical Particulars. LIST OF NAME(S) OF APPROVED MANUFACTURER

Sr. No. Name of Item

Name of Manufacturer

1. Capacitors Unistar/Electronicon/ABB

2. APFC Relay Beluk/Electronicon/Siemens/L&T

3. Vacuum Contactor CGL/ABB/Siemens/EPCOS

4. Series Reactor Sercon/Quality Power/Shrihans/APIPL

5. Out Vacuum Circuit Breaker

with C&R panel

CGL/Siemens/Jyoti

6. Protective Relays

AREVA /Ashida/ /Eassun Reyrolle

7. Isolator Kiron /Megawin /Panikker /Universal/CGL

8. Lightning Arrestors Elpro / Areval/CGL/IGE/Oblum/CG Lucy

9. Instrument Transformers

AE /CGL/Jyoti/Kappa/Max Energy/Pragati

/GYRO

10. Ammeter, Voltmeter etc. AE/Conserve/MECO/Rishabh


11. HT XLPE Cable

Gloster/ Finolex/Polycab/ Universal

Schematic arrangment of 11 KV outdoor Switched Capacitor Bank

(Schematic diagram is only for the purpose of guiding the bidder and the bidder should submit the

schematic based on technical specifications with him bid)


V.C.B

.

Off Load

Isolator.

Vacuum Contactor

Switch.

Series Reactor

Reactor Capacitor

Bank

APFC

Relay CT ,PT

signals

APFC

Relay

LA

RVT


SECTION –IV

GROUP – B / 3


PSC POLES

PSC Pole (8 mtr x 200 Kg, 9 Mtr x 300 Kg) 1. 0 SCOPE: 1.1 This specification covers design, manufacture, testing, supply and erection of PSC poles by

replacing the damaged poles (may be SP/DP/4 Pole structure) in the existing LT/HT lines at

different locations under NESCO area and returned the damaged replaced poles to nearest

NESCO store with proper documents.

1.2 Actual location for replacement of damaged poles shall be identified during joint survey

between NESCO & Contractor.

2.0 SUPPLY:

2.1 Qualification Criteria of Sub Vendor / Manufacturer:-

The prospective bidder may source PSC Poles from manufacturers who should have supplied at

least the following quantity of PSC Poles to Electricity Supply Utilities / PSUs. The bidder

should enclose Performance Certificates from the above users, issued in favour of the Sub

Vendor / manufacturer, as proof of successful operation in field.

Sl. No. Size Minimum Past Supply Qty

1 8 Mtr. X 200 Kg 2000

2 9 Mtr. X 300 Kg 1500

2.2 Applicable Standard:

The Poles shall comply with latest standards as under:

REC Specification No. 15/1979, REC Specification No. 24/1983, IS 1678, IS 2905, IS 7321.

2.3 Materials :

Cement Cement to be used in the manufacture of pre-stressed concrete poles shall be ordinary for rapid hardening Portland cement confirming to IS: 269-1976 (Specification for ordinary and low heat

Portland cement) or IS: 8041 E-1978 (Specification for rapid hardening Portland cement).

Aggregates

Aggregates to be used for the manufacture of pre-stressed concrete poles shall confirm to IS: 383 (Specification for coarse and fine aggregates from natural sources for concrete) .The


nominal maximum sizes of aggregates shall in no case exceed 12 mm.

Water Water should be free from chlorides, sulphates, other salts and organic matter. Potable water will be generally suitable.

Admixture Admixture should not contain Calcium Chloride or other chlorides and salts which are likely to promote corrosion of pre-stressing steel. The admixture shall conform to IS: 9103.

Pres-Stressing Steel Pre-stressing steel wires including those used as un tensioned wires should conform to IS:1785 (Part-I) (Specification for plain hard-drawn steel wire for pre-stressed concrete, Part-I cold

drawn stress relieved wire).IS:1785 (Part-II)(Specification for plain hard-drawn steel wire) or

IS:6003 (Specification for indented wire for pre-stressed concrete).The type design given in the

annexure are for plain wires of 4 mm diameter with a guaranteed ultimate strength of 160

kg/mm². All pre-stressing steel shall be free from splits, harmful scratches, surface flaw, rough,

aged and imperfect edges and other defects likely to impair its use in pre-stressed concrete.

Concrete Mix Concrete mix shall be designed to the requirements laid down for controlled concrete (also called design mix concrete) in IS: 1343-1980 (Code of practice for pre-stressed concrete) and

IS: 456 – 1978 (Code of practice for plain and reinforced concrete) subject to the following

special conditions:

Minimum works cube strength at 28 days should be at least 420 Kg/cm².

The concrete strength at transfer should be at least 210 Kg/cm².

The mix should contain at least 380 Kg of cement per cubic meter of concrete.

The mix should contain as low water content as is consistent with adequate workability. It

becomes necessary to add water to increase the workability the cement content also should be

raised in such a way that the original value of water cement ratio is maintained.

2.4 Design Requirements

The poles shall be designed for the following requirements:

The poles shall be planted directly in the ground with a planting depth as per IS: 1678.

Wherever, planting depth is required to be increased beyond the specified limits or alternative

arrangements are required to be made on account of ground conditions e.g. water logging etc.,

the same shall be in the scope of the bidder at no extra cost to owner. The bidder shall furnish

necessary design calculations/details of alternative arrangements in this regard.

The working load on the poles should correspond to those that are likely to come on the pole

during their service life.

The factor of safety for all poles 9.0Mts. Shall not be less than 2.0 and for 8.0 M poles, the

factor of safety shall not be less than 2.5.

The average permanent load shall be 40% of the working load.

The F.O.S. against first load shall be 1.0.

At average permanent load, permissible tensile stress in concrete shall be 30 kg/cm².


At the design value of first crack load, the modulus of rupture shall not exceed 53.0kg/cm² for

M-40.

The ultimate moment capacity in the longitudinal direction should be at least one fourth of that

in the transverse direction.

The maximum compressive stress in concrete at the time of transfer of pre-stress should not

exceed 0.8 times the cube strength.

The concrete strength at transfer shall not be less than half, the 28 days strength ensured in the

design, i.e. 420x0.5=210kg/cm². For model check calculations on the design of poles, referred

to in the annexure, a reference may be made to the REC “Manual on Manufacturing of solid

PCC poles, Part-I-Design Aspects”.

2.5 Dimensions and Reinforcements:

The cross-sectional dimensions and the details of pre-stressing wires should conform to the

particulars given in the enclosed drawing. The provisions of holes for fixing cross-arms and

other fixtures should conform to the REC specification No.15/1979.

All pre-stressing wires and reinforcements shall be accurately fixed as shown in drawings and

maintained in position during manufacture. The un-tensioned reinforcement as indicated in the

drawings should be held in position by the use of stirrups which should go round all the wires.

All wires shall be accurately stretched with uniform pre-stressed in each wire. Each wire or

group of wires shall be anchored positively during casing. Care should be taken to see that the

anchorages do not yield before the concrete attains the necessary strength.

2.6 Cover

The cover of concrete measured from the outside of pre-stressing tendon shall be normally 20 mm.

2.7 Welding and Lapping of Steel

The high tensile steel wire shall be continuous over the entire length of the tendon. Welding shall not be allowed in any case. However, joining or coupling may be permitted provided the

strength of the joint or coupling is not less than the strength of each individual wire.

2.8 Compacting

Concrete shall be compacted by spinning, vibrating, shocking or other suitable mechanical means. Hand compacting shall not be permitted.

2.9 Curing

The concrete shall be covered with a layer of sacking, canvass, Hessian or similar absorbent material and kept constantly wet up to the time when the strength of concrete is at least equal to

the minimum strength of concrete at transfer of pre-stress. Thereafter, the pole may be removed

from the mould and watered at intervals to prevent surface cracking of the unit the interval

should depend on the atmospheric humidity and temperature. The pre-stressing wires shall be

de-tensioned only after the concrete has attained the specified strength at

transfer (i.e. 200 or 210 kg/cm² as applicable).The cubes cast for the purpose of determining the

strength at transfer should be coursed, a sear as possible, under condition similar to those under

which the poles are cured. The transfer stage shall be determined based on the daily tests

carried out on concrete cubes till the specified strength indicated above is reached. Thereafter

the test on concrete shall be carried out as detailed in IS: 1343(code of practice for pre-stressed


concrete). The manufacture shall supply, when required by the

owner or his representative, result of compressive test conducted in accordance with IS: 456

(Code of practice for plain and reinforced concrete) on concrete cubes made from the concrete

used for the poles. If the manufacture so desired, the manufacture shall supply cubes for test

purpose and such cubes shall be tested in accordance with IS: 456 (Code of practice for plain

and reinforced concrete).

2.10 Lifting Eye-Hooks or Holes

Separate eye-hooks or hoes shall be provided for handling the transport, one each at a distance of 0.15 times the overall length, from either end of the pole. Eye-hooks, if provided, should be

properly anchored and should be on the face that has the shorter dimension of the cross-section.

Holes, if provided for lifting purpose, should be perpendicular to the broad face of the pole.

2.11 Holes for Cross Arms etc Sufficient number of holes shall be provided in the poles for attachment of cross arms and other equipments.

2.12 Stacking & Transportation

Stacking should be done in such a manner that the broad side of the pole is vertical. Each tier in the stack should be supported on timber sleeper located as 0.15 times the overall length,

measured from the end. The timber supported in the stack should be aligned in vertical line.

2.13 Earthing

(a) Earthing shall be provided by having length of 6 SWG GI wire embedded in Concrete

during manufacture and the ends of the wires left projecting from the pole to a length of

100mm at 250 mm from top and 1000 mm below ground level.

(b) Earth wire shall not be allowed to come in contract with the pre-stressing wires


3.0 ERECTION OF POLES:

3.1 ERECTION OF POLE, CONCRETING OF POLES AND COMPACTION OF SOIL

Decide the actual location the damaged pole to be replaced through joint survey , made survey

report & drawing of the line where the damaged poles to be dismantled , the prepare

drawing of excavation .Foundation of both wet and Black cotton soil is enclosed which

are to be adopted. If better design with less volume approved or tested by any other

distribution agencies will also be acceptable.

3.2 Following arrangement shall be adopted for proper erection of poles wherever necessary and

properly compacting of the soil around the base / foot of the poles, under this package.

(a) Excavation has to done as per the drawing to the required depth and size & remove the

damaged pole. After dismantling the pole pit should be dressed properly so that uneven

portion and loose soil should be removed before PCC (M-7.5) of thickness 75 mm is laid.

The base footing of the pole concreting RCC (M-15) has to be done by proper alignment and

verticality.

(b) The verticality and leveling of pole/structure should be done by the help of plumbob or with

theodolite and leveling instrument along the existing system.

(c) The replaced damaged pole to be returned to nearest NESCO with proper documentation.

3.3 CEMENT CONCRETE (PLAIN OR REINFORCED), STUB SETTING GROUNDING

AND BACK FILLING etc.

A) Materials

All materials whether to be consumed in the work or used temporarily shall conform to relevant

IS specification, unless stated otherwise, and shall be of the best approved quality.

B) Cement

Cement to be used in the work under the contract shall generally conform to IS:269/455-1989.

Cement bags shall be stored by the contractor in a water tight well ventilated store sheds on

raised wooden platform (raised at least 150 mm above ground level) in such a manner as to

prevent deterioration due to moisture or intrusion of foreign matter. Cements to be used within

three months from the date of manufacture. Sub-standard or partly set cement shall not be used

and shall be removed from the site by the contractor at his cost.

C) Coarse Aggregates i.e Stone chips or stone ballast. For M15 concrete (mix 1:2:4) the aggregate

will be in the ranges from 12mm to 20mm.size and for M7.5 concrete (mix 1:4:8) these will

be from 25mm to 40mm size.


D) Pole erection

1. After proper alignment, checking of verticality and leveling, the pole or structure should be

properly tied before placing of base concrete of required height. Again the verticality and

leveling should be checked.

2. The RCC pedestal concrete (M-15) is to be done by providing good quality of shutters, so

that there will no leakage of cement slurry during concreting. The cooping height should be 450

mm above the existing ground level in urban area and in cultivated lands respectively. The top

portion of the cooping should be made tapered.

3. Above the cooping 450 mm of pole or structure should be painted with double layer of Black

Bituminus paints.

4. All the bolted joints should be tightened properly by providing suitable size GI Bolt Nuts and

Spring washers. After completion of erection works all the bolts should be spot welded in order

to avoid theft of members.

5. The back filling of locations should be done by using the excavated soil only in layers (each

layer should not be more than 500 mm) by putting water and ramming by using wooden

rammers. In no case stone of size more than 75mm used for back filling. Back-filling has to be

done 75mm above ground level or as specified

6. Curing of concrete should be done for 28 day continuously. Curing should not be done within

24 Hours of concreting.

7. All the excess excavated materials and other unused materials from the concreting site should

be disposed of to a suitable site by the contractor.

a) Mixer (Running time-2 min.)

b) In case of hand mixing, 10% extra cement has to be provided. Hand mixing should be done

on GI sheet platform only.

c) Poking rod may be used for compacting in locations at PSC poles only

d) Use of vibrator for compacting is mandatory.

e) Clean water (free from saline and alkaline) should be used for concreting.

f) Aggregates (both coarse and fine) used should be free from foreign materials.

g) Shutters used should not be removed before 24hrs. of casting.

h) In case of black cotton soil borrowed earth (morum soil mixed with sand is preferable) may

be used for back filling.

i) Sufficient qty. of water should be sprinkled over backfilled earth and chimney kept wet by


using wet gunny bags.

3.4 Precaution / Safety Measures:

3.41 All the persons working on tower shall wear safety helmet, safety belt and safety shoes,

Similarly all the persons working on ground shall wear safety helmet and safety shoes.

3.42 If there is any LT/HT power line near the vicinity of tower erection, necessary shutdown of

the power line shall be obtained in writing from the concerned Agency in order to avoid

electrical hazards caused by accidental touching of stay/Guy ropes with power line.

3.43 Safety precaution Safety shall be given utmost importance during stringing. The following

need to be ensured.

3.44 Safe working conditions shall be provided at the stringing site.

3.45 Full proof communication through walky- talkie / mobile phones shall be used in order to

avoid any damage to workmen or public on ground.

3.5 In case of 11 KV and LT lines (PSC)

3.51 All the poles shall be provided with a RCC block base having dimensions as

mentioned as per the site requirement to be decided by Engineer in Charge. The decision

of Engineer in Charge will be Final.

3.52 The poles shall then be lifted to the pit with the help of wooden supports. The pole shall then be

kept in the vertical position with the help of 25 mm (min.) manila ropes, which will act as the

temporary anchor. The verticality of the pole shall be checked by spirit level in both

longitudinal & transverse directions. The temporary anchor shall be removed only when poles

set properly in the pit for foundation concreting & backfilling with proper compacting the

soil. The backfilling should be done inlayers (maxm. 0.5 mts at a time with sprinkling of

water and by using wooden hammer. No stone more than 75 mm should be used during back

filling.

3.53 Suspension type H/W fittings in all tangent locations and four pair bolted type tension H/W

fittings, insulators, pins, stays etc. shall be dismantled from damaged pole & re- used in all

new pole.

4.0 Earthing of Support

4.1 Each pole shall be earthed with coil type earthing as per REC Construction Standard J-1.


EARHTING COIL

TECHNICAL SPECIFICATION

4.11 Qualification Criteria of Manufacturer:-

The prospective bidder may source Earthing Coil from manufacturers who must qualify all the

following requirements:

a) The manufacturer must have successfully carried out Type Test of similar item from any

NABL Accredited Laboratory within the last 5 years, prior to the date of submission of the bid.

b) The manufacturer should have supplied at least 1000 no.s o electricity supply utilities /

PSUs. The bidder should enclose Performance Certificates from the above users issued in the

name of the manufacturer as proof of successful operation in field.

4.12 SCOPE

The specification covers design, manufacture, testing and dispatch to the owner‟s stores of

Earthing Coils for use in earthing of the HT & LT poles.

4.13 GENERAL REQUIREMENTS

Earthing coils shall be fabricated from soft GI Wire Hot Dip Galvanized. The Hot Dip

galvanized wire shall have clean surface and shall be free from paint enamel or any other poor

conducting material. The coil shall be made as per REC constructions standard.

The Hot Dip galvanizing shall conform to IS: 2629/1966, 2633/1972 and 4826/1969 with latest

amendments.

4.14 TESTS

Galvanizing Tests

Minimum Mass of Zinc

On GI Wire used 280 cm/m²

After Coiling-266 gm/m².The certificate from recognized laboratory shall be submitted towards

mas of zinc.

Dip Test

Dip test shall stand 3 dips of 1 minute and one dip of ½ minute before coiling and 4 dips of 1

minute after coiling as per IS: 4826/1979

Adhesion Test

As per ISS 4826 – 1979.


4.15 DIMENSIONAL REQUIREMENT

Nominal dia of GI Wire -4 mm

(Tolerance±2.5%) Minimum no. of turns – 115

Nos.

External dia of Coil (Min) – 50 mm

Length of Coil (Min) – 460 mm

Free length of GI Wire at one end coil (Min.) – 2500 mm

The turns should be closely bound. Weight of one finished Earthing Coils (min.) – 1.850 Kg.


SECTION –IV

GROUP – B / 4


FOR

3P4W, STATIC, WHOLE CURRENT METERS (CATEGORY-C)

1.0 SCOPE: ( (Supply):

This specification covers the design, engineering, manufacture, assembly, inspection, testing at

manufacturer‟s works before despatch, supply and installation in NESCO area for 25 KVA 11/0.4 KV

Sub-station or below, of indoor / outdoor type of A.C. whole current Three Phase, 4-Wire, ISI Marked,

20-100 A Static Energy Meters for measurement of active energy (kWh) with initial and sustained

accuracy of class 1.0 for solidly earthed system with balanced and unbalanced loads for power factor range

of zero to unity (lagging) and unity (leading).

The above meters shall be supplied in a pilfer proof box which shall be weather proof made out of

polycarbonate/SMC with flame retardant properties. The meter and box should be supplied in suitable

packing so as to withstand transit shocks.

It is not the intention to specify herein all the details of the design and construction of meter. However,

the meter shall conform in all respects to high standards of engineering, design and workmanship and shall

be capable of performing continuous commercial operation, in a manner acceptable to the purchaser,

who will interpret the meaning of drawings and specification and shall have the power to reject any work or

material which in his judgment is not in accordance therewith. The offered meter shall be complete with all

components necessary for their effective and trouble free operation.

2.0 SERVICE CONDITIONS

The meters to be supplied shall be suitable for satisfactory continuous operation under the following

service conditions: -

1. Maximum ambient temperature : 50 °C

2. Maximum ambient temperature in closed box: 60 ° C

3. Maximum ambient temperature in shade : 45 °C

4. Relative Humidity : 10 to 95%

5. Maximum annual rainfall : 1450 mm2

6. Maximum wind pressure : 150 kg/m.sq.


7. Maximum altitude above mean seal level : 1000 meters

8. Isoceraunic level : 50 days/year

9. Seismic level (Horizontal acceleration) : 0.3g

10. Permitted noise level : 45 dB

11. System of earthing : Solidly ground

12. Moderately hot and humid tropical climate

3.0 APPLICABLE STANDARDS

The specified meters should be of 1.0 accuracy class and confirm the following Indian and international

standard specifications. In case, certain details are not covered in this specification, any other Indian

/International standard applicable, may be specified and adopted.

1 IEC 62053-21 A.C. Static watt hour meters for active energy

(Class 1 & 2) 2 IS 12063 Specification for degree of protection

3 IS 13779 A.C. static watthour meters for active energy (class (1&

2)

4 IS 9000 Basic environmental testing procedure for

electronic and electrical items 5 CBIP Tech report 88

(July 96) with latest

amendments

Specification for AC static electrical energy of

CBIP, New Delhi with its latest amendments.

6 IS-2629 Hot dip galvanizing 7 IS:5133 (Pt-II) Specification for boxes for electrical accessories. (Part II

boxes made of insulating material) 8 ETD 13 (6211)/IS15959 Category „C‟ for consumer metering

The static meters and boxes shall conform to the latest version of available standard as specified above.

Meters meeting with the requirements of other authoritative standards, which ensure equal or better

quality than the standards mentioned above, shall also be considered. Where the meters offered by the

supplier conform to other standards, salient points of differences along with advantages to be gain

between the standard adopted and the specified standards shall be clearly brought out in a schedule.

Two copies of such

standards in authentic English translation shall be furnished along with the offer.

In case of any dispute, the order of precedence shall be 1) CBIP technical report –88 (read with

all amendment) 2) IS 3) IEC 4) Other standards. In case of any difference between provisions of these

standards and provision of this specification, provisions contained in this specification shall prevail.

4.0 GENERAL TECHNICAL REQUIREMENT OF STATIC ENERGY METERS:

4.1. Application : 3 phase 4 wire Whole Current 4.2. Rated Voltage : 240 Volts (Ph to N) 4.3. Rated Current (I basic) : 20 Amps (Balanced &

Unbalanced load ] 4.4. Maximum Continuous current : 100 Amps

4.5. Rated Frequency : 50 Hz. 4.6. Accuracy class : 1.0 4.7 Power Factor : Unity to Zero (all power factor

lag/or lead). 4.8 Multiplication factor : One


The offered meters shall start and continue to register on application of 0.2% of basic current at Unity

P.F., as per relevant standards and shall work satisfactorily up to rated maximum continuous current with the

following supply system variation:

Voltage : Vref + 20% to - 30%

Frequency : 50 Hz ±5%

However manufacturer can offer meters, which can withstand higher variations.

4.9 Temperature : The standard reference temperature for

performance shall be 27 °C. The mean

temperature co-efficient shall be as per IS.

5.0 INFLUENCE QUANTITIES:

The offered meters should be designed and protected such that all external effects and influences shall

not change its performance and they shall work satisfactorily within guaranteed accuracy limits, as

specified in CBIP technical report – 88 with latest amendments.

6.0 CONSTRUCTION:

The offered meters shall be of three element construction to suit measurement in 3 phase 4 wire direct

connected system. The manufacturing process shall use high quality State-of-the-art surface mounted

components and the manufacturer shall ensure high reliability and long trouble free service.

6.1 GENERAL REQUIREMENTS:

The construction of the offered meters shall be rigid, suitable to withstand shock &

vibration involved in transportation & handling, as specified in CBIP technical report

– 88 with latest amendments. Meters shall be designed and constructed in such a way as to avoid

introducing any danger in normal use and under normal conditions, so as to ensure especially personal

safety against electric shock, safety against effect

of excessive temperature, protection against spread of fire, protection against penetration of

solid objects, dust and water. The design of offered meters shall conform to IP51 of IS: 12063 /

IEC: 529 class degree of protection against dust, moisture and vermin.

Meters shall be designed and constructed in such a way as to avoid introducing any danger in use so as

to ensure specially:

a) Personnel safety against electric shock.

b) Personnel safety against effects of excessive temperature. c)

Protection against spread of fire

d) Protection against penetration of solid objects, dust, moisture and vermin.

6.2 TROPICAL TREATMENT: -

All parts which are subject to corrosion under normal working conditions shall be protected

effectively. Any protective coating shall not be liable to damage by ordinary handling or damage due to

exposure to air, under normal working conditions. Meters shall withstand solar radiation. The offered

meters shall be suitably designed and treated for normal life & satisfactory operation under the hot and

hazardous tropical climatic conditions as specified in clause no. 2. The offered meter shall work from -10°C

to +55°C and RH 95% non-condensing type.

6.3 METER CASE:

The housing of the meter shall be safe high-grade Engineering plastic / polycarbonate or any other high

quality insulating material and shall be very compact in design. All the insulation materials used in the

construction of meters shall be non-hygroscopic, non ageing and of tested quality, capable of withstanding

at least 4 kV and resistant to heat


& fire. The construction of the meter offered shall be such that it can be sealed independently and

the cover cannot be removed with the use of a tool, without breaking the seal. The case of meters shall

be so constructed that any non-permanent deformation shall not prevent the satisfactory operation of the

meter.

The meter case shall be fixed into the meter base with specially designed covered unidirectional

screws and the meter body cover should be ultrasonically welded with the meter base to make the system

„break-to-open‟ type. Any other suitable break to open arrangement will also be considered. The details of

the „break-to-open‟ arrangement to be provided shall be furnished in shape of descriptive literature with

drawings, brochures etc. The meter top cover shall be fully transparent.

6.4 .TERMINALS -TERMINAL BLOCK –

The base of the meter shall have a common terminal block at the bottom made out of High grade

Engineering plastic so as to facilitate bottom connection and should house solid brass terminals having

capability to carry 120% of maximum value of current. The terminal block should be non hygroscopic,

non ignitable and with material of good dielectric and mechanical strength.

The material of the terminal block shall pass the tests specified in CBIP technical report

88 with latest amendments and IS13779.

The terminal holes in the insulating material shall be of sufficient size to accommodate the insulation of

the conductors. The terminal hole dia. shall not be less than 8.0 mm & shall be of adequate length in order

to have proper grip of conductors / crimping pins with the help of two screws.

The terminal block shall satisfy all the conditions such as clearance & creepage distance between terminals

& surrounding part of the meter as specified in relevant clause of CBIP technical report – 88 with latest

amendments. So as to accommodate insulated aluminum standard conductor of 120% of rated current.

The manner of fixing the conductors to the terminals shall ensure adequate and durable contact such that

there shall be no risk of loosening or undue heating. Screw connections transmitting contact force

and screw fixing which may be loosened and tightened several times during the life of the meter

shall be such that the risk of corrosion resulting from contact with any other metal part is

minimised. Electrical connections shall be so designed that contact pressure shall not be transmitted through

insulating material. For current circuits, the voltage shall be considered to be at the same potential as for

the related voltage circuit.

All connection screws and washers shall be tinned / nickel plated brass. The terminal screws shall not

have pointed end at the bottom. All terminals shall have two screws.

Terminals with different potentials, which are grouped close together, shall be protected against accidental

short-circuiting.

Connection diagram: Every meter shall be indelibly marked with a connection diagram showing the phase

sequence for which it is intended and this diagram should be attached from inner side of the extended

terminal block cover. It should be ensured that if special precautions need be taken at the time of testing

the meter, the same may be indicated along with circuit diagram.

Terminal arrangement: The terminal arrangement and connection diagram shall be marked in

accordance with clause 7.2 of IS 13779. Terminal arrangement shall be in single tier and shall be in

sequence Ph-R (in), Ph-R (out), Ph-Y (in). Ph-Y (out), Ph-B (in), Ph-B (out), Neutral (in), Neutral (out).

6.5 TERMINAL BLOCK COVER.

The terminals block cover for the offered energy meters shall be extended transparent type, and shall be

fixed to the meter terminal block by two screws and can be sealed independently of the meter cover. The

terminals, their fixing screws, external conductors, their insulation and the insulated compartment housing


them shall be enclosed by extended terminal cover in such a way that no part of meter or cable /

accessories shall be accessible from the front of the meter. The terminal cover shall be provided with

suitable cut / holes to allow easy connection / termination of cable.

The terminals shall not be accessible without removing the seal(s) of terminal cover when energy meter is

mounted on the meter board. Bidirectional screws shall be provided for terminal cover.

The terminal block shall have the provision with double screws for fixing to the meter board. It shall

not be possible to remove the meter from the hanging screws with out removing the screws from the

terminal block.

Non-flammability: The terminal block, terminal cover and the case shall ensure reasonable safety

against spread of fire. They shall not be ignited by thermic overload of live parts in contact with them.

To comply with this, these parts shall fulfil the conditions of the glow wire test as per clause 5.2.4 of

CBIP Technical report No. 88 with latest amendments.

Test certificate for the material to be used for manufacture of terminal block, terminal cover and case

shall be furnished.

6.6 DISPLAY WINDOW:-

The window will be scratch and break resistant made of transparent silicon coated polycarbonate

material suitably fixed with the meter cover such that it will form an integral part with the meter

cover and it cannot be removed undamaged without breaking the meter cover seals. It would not fade

in course of time and become opaque causing inconvenience for reading.

The viewing window would be minimum 2±0.2mm thickness. The fixing of window will be tight with single

complete frame all round and will permit clear view of the display. There would not be ingress of moisture

and dust through window.

6.7 REAL TIME CLOCK :-

A real time quartz clock shall be used in the meter for maintaining time and calendar and as such no

time switches etc. shall be provided. The uncertainty of setting initial

time shall not be more than +/- 30 seconds from the Indian Standard Time as maintained by NPL,

New Delhi. The Maximum drift shall not be more than ±7 min. / year as per CBIP technical report with

latest amendments. Facility for adjustment of real time shall be provided through Meter Reading Instrument

with proper security.

6.8. COMMUNICATION PORT

The energy meter shall have a galvanically isolated optical communication port located in front of the

meter for data transfer to or from a hand held Data Collection Device (Common Meter Reading

Instrument, CMRI- conforming to CBIP technical report -111 with latest amendments) with proper

security and without error. One RS 232 port shall also be provided for remote communication.

Both the ports will support communication on DLMS and should be accessible through a DLMS compliant HHU. All necessary software (BCS & for CMRI) required for downloading shall be provided by the supplier without any additional cost to the purchaser.

The manufacturer may quote for any other type of communication port conforming to any international

accepted standards. The manufacturer may adopt protocol as per IS:15959 but should load the meter

software, protocol software, dial up software & any other required software in to the base computer

station of the purchaser. After loading the software in the purchaser‟s base computer station / central

computer station, the meter manufacturer shall demonstrate the data transfer through hand held CMRI

and regeneration of appropriate reports to the purchaser. The data element size and its overhead speed

of transmission shall be such that the entire billing data can be transferred within a maximum period

of 10 minutes.


HAND HELD UNIT (HHU)

To enable local reading of meter data, a DLMS compliant HHU shall be used. It shall be compatible to the

DLMS compliant energy meters that are to be procured / supplied on the basis of this specification. The

HHU shall be supplied by the meter manufacturer along with the meters free of cost one for each 100

meters supplied.

6.9. DISPLAY OF MEASURED VALUE :

The meter information should be shown by an electronic display device. The electronic display of the

meters should be bright enough and distinctly visible LCD with adequate contrast between letters / digits

and the background for clarity and visibility so as to read one tenth of KWh. Various displayed

parameters can be cycled through a push button. Displayed parameters, under present display will be

identified with appropriate text and symbol. The height of display unit will be minimum 10 mm.

Under normal condition, the meter will be in auto display mode, so that designated parameters will scroll

cyclically in a continuous manner and the display „ON TIME‟ will be at least 8 seconds for each

measured value. The meter should have backlight arrangement in side the meter.

When the meter is not energized, the electronic display will not be visible. However, in absence of

power, meter display will be activated for meter reading by means of an additional internal battery

back up power source.

The principal unit for the measured values shall be the kWh for active energy, kVARh for reactive energy &

kVAh for apparent energy.

The energy register will be able to record and display, starting from zero, for a minimum of 1500 hours, the

energy corresponding to rated maximum current at reference voltage and unity power factor as per IS

13779. The register should not roll over in between this duration. The decimal digit will be clearly

distinguished from the integral digit.

The meter would have the „scroll-lock‟ facility, i.e. the facility for continuous display of desired parameter

from „push button display sequence‟, to facilitate meter reading for a particular parameter. Push button

display sequence will have overriding effect over auto- scroll-display sequence. .(Desired parameter can be

seen for 5 minutes or more time instead of „scroll lock‟ is also acceptable.)

Required displays shall be configurable in three different pages in push mode for easy access in mains on

condition. First page should contain the instantaneous parameters, second page, for energy and demand

values, and third page for tamper related displays. Parameter value with relevant OBIS code should also

be simultaneously available on display.

6.10. POTENTIAL LINK:

Potential link less connection shall be provided inside the offered meter. Healthy phase indication can be

seen on display.

6.11. MEMORY:

The offered Meter shall have non volatile memory (NVM) independent of battery back-up

& it shall retain data in „power-off‟ conditions for a period of minimum 12 years without power supply. .

Readings shall be retained undisturbed in „power-off‟ conditions and at

the time of resumption of power supply. Meter shall start reading / displaying

cumulative values recorded prior to power interruptions.

The meter shall have adequate NVM capacity to keep records of meter reading, billing history, Tamper

information & Load survey information as required and detailed in this specification.


6.12. ELECTROMAGNETIC COMPATIBILITY

The offered static energy meters shall conform to requirements listed in CBIP technical report – 88 with

latest amendments and shall also be protected against radiated interference from either magnetic or

radio-frequency source.

The meter shall also withstand DC Immunity test as per relevant standard so as to ensure that the meter

does not saturate on passage of Direct Current.

6.12.1. IMMUNITY TO ELECTROMAGNETIC DISTURBANCE

The meter shall be designed in such a way that conducted or radiated electromagnetic disturbance as well

as electrostatic discharge do not damage or substantially influence the meter.

NOTE : The disturbance to be considered as:-

a. Harmonics

b. Voltage dips and short interruptions.

c. Conducted transients.

d. D.C. and A.C. magnetic fields

e. Electrostatic discharges

f. Electro Magnetic Fields.

g. High frequency devices.

6.12.2. RADIO INTERFERENCE SUPPRESSIONS: -

The meter should not generate noise which could interfere with other equipment and the meter should work

satisfactorily as per relevant standards.

6.12.3. INFLUENCE OF HIGH MAGNETIC FIELD: -

The meters will be provided with appropriate magnetic shielding so that any external magnetic field

(AC/DC electromagnet) as per CBIP Technical Report no. 88 with latest amendments applied on meter

would not affect the proper functioning of the meter and meter will work satisfactorily as per relevant

standards.

6.13. Starting Current:

The meter will start and continue to register at the current 0.2% of Ib. It should be fully functional within 5

seconds after rated voltage is applied.

6.14. RUNNING WITH NO LOAD:

When 115% of rated voltage is applied with no current flowing in the current circuit, the offered meters

shall not register any energy and test output of the meter shall not be more than one pulse on "no load".

6.15. POWER SUPPLY

The offered energy meters shall be self powered up type i.e. power for working of the meter‟s internal

electronic circuit would be drawn from all the three phases & neutral. Further, the power supply for the

meter‟s internal electronic circuits would be such that meter shall function accurately, within the limits

specified by the standard, in the event of loss of neutral. The offered meter shall continue to work in

case of loss of any two phases or loss of any one phase and neutral.


6.16 POWER CONSUMPTION

6.16.1 The active and apparent power consumption in each voltage circuit of the offered whole current

meter at reference voltage, temperature and frequency shall not exceed 1 W and 8 VA per phase

respectively.

6.16.2 The apparent power consumption in each current circuit for the offered direct connected meters at

basic current, reference frequency and reference temperature shall not exceed 1.0 VA per phase.

6.17. CALIBRATION & TEST OUTPUT

All the offered meters shall be tested, calibrated and sealed at works before dispatch. Further, no

modification of calibration shall be possible at site by any means.

The meter shall have a test output accessible from the front and be capable of being monitored with

suitable testing equipment. The operation indicator, if fitted, must be visible from the front. Test output

device shall be provided in the form of LED(s) for kWh & kVArh with direct or the provision of selecting

the parameter being tested.

Resolution of the test output shall be sufficient to enable the starting current test in less than 10 minutes and

accuracy test at the lowest load shall be completed with desired accuracy within 5 minutes (as per

clause 4.2.22.10 of CBIP report no.88 with latest amendments).

The relation between test output and the indication on display shall comply with the marking on the

name plate (imp per kWh or KWh per imp).

6.18 SEALING OF METER

Proper sealing arrangement would be provided on the meter to make it tamper proof and avoid mishandling

by unauthorized person.

Two sealing stickers must be provided on the side of the meter body at the factory after calibration and

testing. The meter cover will have provision for placing minimum two numbers additional seals by

CESU. The terminal block cover should have provision for placing minimum two seals by the CESU.

One separate sealing arrangement for optical port to be used for communication will be provided.

All the sealing screws when they are in open condition (i.e. not fixed) would not be easily detachable from

the respective cover. The meter should be designed and constructed in such manner to make it pilfer proof.

The holes for sealing wire shall be of 2mm diameter approximately, suitable for making satisfactory sealing

of the meters.

All the above seals would be provided on front side only apart from two numbers of stickers seals on

the side of the meter.

7.0 QUANTITIES TO BE MEASURED AND DISPLAY:

Display parameters, under present display will be identified with appropriate text and symbol on the

LCD display of the meter. Therefore no such legend plate for details of various parameters being

displayed will be required.

The kWh value shall be displayed with a resolution of one decimal point. The decimal digit

shall be clearly distinguished from the integral digit.


The offered meter shall be capable of recording and displaying automatically following data in order

Auto Display

1. LCD test (Display Test)

2. Real Date

3. Real Time

4. Active Energy (Forwarded)

5. Apparent Energy

6. Maximum Demand in KW & KVA 7. MD Reset Count

8. Cumulative Max. Demand in (KW) & (KVA)

9. Inst. Power factor which sign for lag /lead

10. Inst. Voltage (Each Phase to neutral )

11. Inst. Current ( R , Y & B Phase)

12. Inst. Active Load ( KW )

13. Present Month Power on hours(To be reset at billing point)

14. Present Month TOD Energy (Active)-1C,2C

15. Present Month TOD MAX. Demand (KW) & (KVA)-1C,2C

16. Previous Month Max Demand (KW)&(KVA)

Push Button Display

1. LCD test (Display Test)

2. Real Date

3. Real Time

4. Rising Demand with E.T.(KW)

5. Active Energy (Import)

6. Apparent Energy

7. Maximum Demand in KW & KVA

8. MD Reset Count

9. Cumulative Max. Demand in (KW) & (KVA) 10. Inst. Power factor which sign for lag /lead

11. Inst. Voltage (Each Phase to neutral )

12. Inst. Current ( R , Y & B Phase)

13. Inst. Active Load ( KW )

14. Present Month Power on hours(To be reset at billing point) 15. Present TOD Energy (Active)-1C,2C

16. Present TOD MAX. Demand (KW) &(KVA)-1C,2C

17. Previous Month Max Demand (KW) &(KVA)

18. Tamper Magnetic Influence on display 19. Present status of abnormality

20. Last Occurrence of abnormality with date & time

21. Last Restoration of abnormality with date & time

22. Previous month TOD Energy active (1C & 2C)

23. Previous month TOD max. demand KW&KVA

LOAD SURVEY

50 DAYS, with programmable IP,30 minutes by default with following parameters:

1. Real Time Clock - Date and Time

2. Current - IR

3 Current - IY

4. Current - IB

5. Voltage - VRN

6. Voltage - VYN

7. Voltage - VBN 8. Block Energy - kWh

9. Block Energy - kvarh - lag

10.Block Energy - kvarh -lead

11.Block Energy - kVAh


APPARENT CALCULATION – ( LAG +LEAD)

TOD TIMING (Both MD & ENERGY)

00: 00 Hrs to 06:00 Hrs

06:00 Hrs to 24:00 Hrs

MD RESET REQUIRED - AUTO MODE ONLY

History

TOD MD – 6 months

All Energy – 6 months.

Note :-

i) Apparent Energy shall be computed considering Reactive Energy to be Lag + Lead

ii) Demand Integration period should be programmable and 30 minutes by default.

iii) TOD Timings: There shall be provisions of at least Eight (8) Time of Day Zones and at least Two

(2) Tariff Rates for Energy (Active forwarded and Reactive lag) and Demand registers (Apparent

Demand). Number and timing of these TOD Zones shall be programmable. TOD timings shall

be informed four weeks before commencement of delivery.

iv) Display sequence of the above parameters can be changed as desired at the time of placement of

order or Four (4) weeks before commencement of delivery.

8.0 TAMPER AND FRAUD PROTECTION

The meter shall function properly under following common abnormal conditions :

1.Phase sequence reversal The meter shall keep working accurately irrespective of the phase

sequence of the supply.

2. Missing Neutral The meter shall continue to record energy according to electrical

connections even if the Neutral of potential supply is accidentally

or incidentally disconnected.

3.Current reversal /

connection reversal The meter shall log energy in forward direction.

4. External magnetic

influence The metering system shall be provided with adequate magnetic

shielding so that any external magnetic field (AC Electro Magnet or

DC Magnet) as per the values specified in CBIP Technical Report

No.88 (with latest amendments) applied on the metering system shall

record the energy as

per error limits prescribed by CBIP report.

5. Diode circuit on

outgoing neutral. It should read accurately as per ISS with external diode ckt in the

outgoing neutral ckt.

6. Tamper proof

irreplaceable seals. Meter body should be sealed with double lock anchor type poly

carbonate seals having Unique Serial No.

Beside this the meter should have features to detect the occurrence and restoration of, at least, the

following common abnormal events:

a) Missing Potential & Potential imbalance: The meter shall be capable of detecting and recording

occurrence and restoration with date and time the cases of Potential failure which could happen due

to disconnection of potential leads (one or two), failure of phase line fuse from the Transformer

primary side. Meter shall also detect and log cases of voltage unbalance (from 10 % or more for more

than 15 minutes) of voltages.


b) Current Circuit Open: The meter shall be capable of detecting and recording occurrences and

restoration of opening of any one or two phases of current circuit which can happen due to

intentional / accidental disconnection of current circuits. The meter shall be able to log abnormality

conditions in current open event like CT leads burns, loose connection, CT winding open etc in the

meter memory. No load condition should not record in meter memory as a Current circuit open event.

c) Power on/off: The meter shall be capable to record power on & off time events and also power on

/off events in the meter memory persisting beyond specified time. Persistence time shall be 15

minutes by default. The report shall be available through base computer software in a meaningful

format indicating occurrence / restoration and total power outage.

d) Software Changing: Any communication with the meter for any change in meter software or

any attempt to write in meter software (software tamper) should be recorded in the meter

memory with date and time stamping. However, any communication for reading the meter data

should not be recorded in the meter memory. This data should also be available in the display as

highlighted in this specification.

e) Magnetic Tamper: Additionally, meter shall be capable to record the presence/ removal of magnet

with date & time stamp in case the influence of magnet exceeds the limit as desired in the respective

standard. Neutral Disturbance: Meter shall be provided with the proper logic to identify neutral

disturbance & record the event.

Cover Open: The meter shall be able to detect cover open occurrence event if cover is opened in mains

on or off condition.

f) Software locking : The meter shall have password protected software locking provision to enable any

change in TOD timings or any other requirement of DISCOM.

g) The bidder may offer any other recordable abnormality event, which will be useful in consumer

metering, along with the detailed descriptions, literatures, usefulness and every other implications.

The meter shall record the above abnormalities with time and date of their occurrences

& restorations with a snap shot of electrical conditions viz. Voltage, current, PF etc at

Base Computer System for the events a), b), c) as mentioned above if abnormalities persist for a

definite persistence time.

Logic for calculation of voltage and current imbalance shall be furnished by the bidder. The meter shall

keep records for the minimum last 150 events (occurrences and

restorations) for above of abnormal conditions. The recording of events shall be on FIFO basis. It shall be possible to retrieve the abnormal event data along-with all related snap- shots' data through

the meter's optical port or through radio with the help of a CMRI and download the same to the BCS

where it shall be available for viewing. All this information shall be made available in simple and

easily understandable format.

The meter shall also be capable to withstand and shall not get damaged if phase-to- phase voltage is

applied between phase to neutral.

The selection of the abnormality events and manner of recording, retrieval etc. shall be decided during

the technical evaluation of the offers and will be spelt out in the contract.


8.1 ABNORMAL VOLTAGE/FREQUENCY DEVICE TEST:

The accuracy of the meter would not be affected with the application of abnormal voltage/

frequency generating device having spark discharge of approximately

35KV. The meter will be tested by feeding the output of this device to meter in any of the following manner for 10 minutes:

i) On any of the phase or neutral terminals.

ii) On any connecting wires of the meter.

iii) Voltage discharge with 0-10 mm spark gap. iv) Spark on meter body.

v) Spark on the optical and RS 232 port.

vi) At any place in load circuit.

The accuracy of the meter will be checked before and after the application of above device.

9.0 BILLING HISTORY & LOAD SURVEY: -

9.1 The meter shall have sufficient non-volatile memory for recording history of energy parameters

(monthly and TOD) - kwh, kvah. Kvarh.maximum demand( kw/kva), monthly average - voltage, current,

power factor and power ON or OFF hours for last Six(6) billing cycles (Bill date shall be 00 hrs of the 1st day

of the calendar month by default )

The meter shall be capable of recording active and apparent demand for all active, reactive and

apparent energies for at least 50 days power On days with phase-wise Voltage and current profiling.

The logging interval for load survey shall be programmable and 30 Minutes by default. Load survey data

shall be logged for last 50 „ power on‟ days for interval of 30 minutes. In case there are no power for the

complete day from 0000 hrs to 2400 hrs, the same shall not be recorded in Load survey days. The load

survey data can be retrieved with the help of Meter Reading Instrument and /or remote connectivity as and

when desired & load profiles could be viewed graphically / analytically with the help of meter application

software. The meter application software shall be capable of exporting these data for analysis to other

user software in spreadsheet format (Excel or any other advanced format).

9.2 MD Registration: -

The meter shall continuously monitor and calculate maximum demand for each tariff rate for TOD

metering. Integration period to be incorporated in the meter shall be informed four weeks prior to the

delivery. At the end of every demand integration period the new calculated MD shall be compared with

the previous MD and meter shall store

whichever value is higher.

9.3 MD RESET: The meter shall have the following MD resetting options:-

a) Automatic reset at the end of a certain predefined period. The predefined period shall be

at 2400 Hrs of the last date of each calendar month(or

0000hrs of 1st day of each calendar month) for which at least programmable and 30 years

calendar shall be programmed by the manufacturer.

b) Resetting locally through a CMRI or remotely through GSM / PSTN communication

with the meter through authenticated command is not allowed.

c) Manual resetting arrangement (MD reset push button) with sealing facility is not required.

d) All MD reset shall be recorded as an event.


10.0 SELF DIAGNOSTIC FEATURE :

The meter shall keep log in its memory for unsatisfactory / non-functioning of the RTC battery,

LCD, Memory etc. of meter. Further, the meter should have the capability to check the

correctness of the wiring at the time of meter installation. A detailed write-up on self-diagnostic

feature to be proved by the bidder.

11.0 TEST AND TEST CONDITIONS

11.1 Routine & Acceptance Tests for meters:

11.1.1. Acceptance test: All acceptance tests as stipulated in the relevant standard shall be carried out by the

supplier in the presence of Purchaser‟s representative.

Also the following additional tests shall be carried out on meters from each lot offered for inspection as per

CBIP technical report –88 with latest amendments on randomly selected samples-

a) Magnetic induction of external origin (AC & DC)

b) Tamper and fraud protection as per clause 8 of this Specification. c) Effect of

high frequency devices.

11.1.2. Routine test: All routine tests as stipulated in the relevant standard shall be carried out and

routine tests certificates shall be submitted for approval of purchaser.

Type Test :

11.1.3 The Energy Meters offered shall be fully type tested at independent laboratories by the bidder as

per relevant standards but test reports shall not be more than five years old from the date of opening of

bid. The bidder shall furnish four sets of type test reports along with the bid. Bid without type test

reports shall be treated as non responsive.

11.1.4 Additional Tests

A- Aging Test

During inspection, one meter from a lot of 500 meters shall be subjected to accelerated

ageing test to eliminate infant mortality, i.e., meters are to be kept in ovens

for 72 hours at 55 deg. Centigrade temperature & atmospheric humid condition. After 72

hours meters should work correctly. Facilities / arrangement for conducting ageing test should be available

with the manufacturer.

B- Full load test for 12 hours

During inspection, one meter (other than the meter tested under aging test) from a lot of 500 meters

shall be subjected to a full load operation continuously for a

minimum period of 12 hours to test its durability at high loads.

12.0 INSPECTION :

12.1 The supplier will keep the Purchaser informed in advance of the time of the starting and the

progress of manufacture of equipment in its various stages so that arrangement could be made for

inspection. The customer hold points will be defined at the time of issue of final order. The accredited

representative of the NESCO will have access to the supplier‟s or his subcontractor‟s work at any time

during working hours for the purpose of inspecting the materials during manufacturing of the materials /

equipment and testing and may select test samples from the materials going into plant and equipment. The

supplier will provide the facilities for testing such samples at any time including access to drawings and

production data at no charge to Purchaser.As soon as the materials are ready the supplier will duly send

intimation to NESCO by Regd. Post and carry out the tests in the presence of representative of the

NESCO. If NESCO feels necessary may select one sample from the lot at factory to send for testing at

CPRI/NTL or any other standard laboratory. In this case all inspection & testing charges in this

connection will be borne by the supplier.


12.2 The NESCO may at its option get the materials inspected by the third party if it feels

necessary and all inspection charges in this connection will be borne by the supplier.

12.3 The dispatches will be affected only if the test results comply with the specification.

The dispatches will be made only after the inspection by the NESCO Officer is completed to the NESCO

satisfaction or such inspection is waived by the competent authority.

12.4 The acceptance of any quantity of materials will in no way relieve the supplier of its

responsibility for meeting all the requirements of this specification and will not prevent

subsequent rejection if such materials are later found to be defective or deviation from

specification/IS.

12.5 The supplier will give 15 days advance intimation to enable the Purchaser depute his

representative for witnessing the acceptance and routine tests.

12.6 Should any inspected or tested materials / equipment fail to conform to the specification, the

Purchaser may reject the materials and supplier will either replace the rejected materials or make alterations

necessary to meet specifications requirements free of costs to the Purchaser.

12.7 After deliver of materials at NESCO Store the materials may be verified/retested in full or taking

random samples before acceptance. In case of any deviation to the specification, GTP,IS found during

the tests the lot will be rejected or will be replaced by supplier.

13.0 PACKING & FORWARDING:

13.1 The meters shall be packed in crates suitable for vertical / horizontal transport, as the case may

be, and suitable to withstand handling during transport and outdoor storage during transit. The supplier

shall be responsible for any damage during transport and out door storage during transit due to

improper and adequate packing. The easily damageable material shall be carefully packed and marked

with appropriate caution symbol. Wherever necessary, proper arrangement for lifting such as lifting hooks

etc. shall be provided. Any material found short inside the packing cases shall be supplied

immediately without extra cost.

13.2 Each consignment shall be accompanied with detailed packing list containing the following

instructions:

a. Name of the consignee

b. Details of consignment

c. Destination

d. Total weight of consignment

e. Handling and packing instructions

f. Bill of material indicating contents of each package

13.3 The supplier shall ensure that the packing list and bill of material are approved by the purchaser before

dispatch.

13.4 The packing shall be done as per the manufacturer‟s standard practice. However, he shall be ensure

that the packing is such that the material should not get damaged during transit by rail / road.

13.5 The marking on each package shall be as per relevant standard and shall contain

“NESCO” imprint.

14.0 MARKING OF METER:

The meter terminal marking and mounting arrangement should be as per Indian installation practices.

The marking on every meter shall be in accordance with IEC.62053-22/IS13779:1999

Every meter shall have name plate beneath the meter cover such that the name plate cannot be accessed

without opening the meter cover and without breaking the seals of the meter cover and the name plate


shall be marked indelibly. The name plate marking should not fade with lapse of time. The basic markings

on the meter name plate shall be as follows:-

i. Owner‟s Name : CESU

ii. Manufacturer's name and trade mark. iii.

Type Designation.

iv. Number of phases and wires. v.

Serial number.

vi. Year of Manufacture.

vii. Reference voltage

viii. Rated current .

ix. Principal unit(s) of measurement.

x. Meter constant (imp/kWh, kVArh, kVAh). xi.

Class index of meter.

xii. Purchase Order Number & Date. xiii.

Guarantee Period

15.0. SAMPLES:

Two sample meters with box conforming to this specification duly sealed along with the Type Test

certificates shall be submitted with the bid. The above sample meters shall be tested in purchaser‟s

meter testing lab and/or any independent test lab and the testing charges will be born by the supplier. The

samples shall be complete in all respects and no deviations shall be allowed thereafter. In case sample

meters does not conform to the prescribed specifications, the financial bid of offer shall not be opened. It

will be compulsory to submit sample meters as above along with the bid, failing which the bid will be

ignored.

16.0. MANDATORY ACCESSORIES:

If any mandatory spare parts recommended for successful performance of the meters during its entire

guaranteed life, bidders are requested to quote separately.

(Bidders are requested to ensure clearly mandatory accessories are the part of price schedule)

Bidders should undertake to maintain sufficient inventory of spares and critical components of the

meters at their local office at Bhubaneswar or at their manufacture works, which are likely to become

obsolete due to rapid technological changes in electronics and IT sectors. In the event of placement of

order, they must also ensure availability of required components and spares, indigenous or imported, even if

the same components and spares become obsolete, till completion of guarantee period. Inability to supply

required spares during the guarantee period will be considered as a breach of contract and may warrant

penal action. An undertaking to this effect must be enclosed by the bidder along with his offer.

The supplier is abide for supply of required copies of meter Software in CDs except Meter Security Software.

Any further modification required for the meter Software after purchase of meter should be done free of cost

by the supplier.

17.0 QUALITY ASSURANCE PLAN :

The design life of the meter shall be minimum 20 years and to prove the design life the firm shall have at

least the following quality Assurance Plan: -

The factory shall be completely dust proof.

The testing rooms shall be temp. and humidity controlled as per relevant standards.

The testing and calibrating equipments should be automatic and all test equipment shall have their valid

calibration certificates.


Power supplies used in testing equipment shall be distortion free with sinusoidal wave- forms and

maintaining constant voltage, current and frequency as per the relevant standards.

During the manufacturing of the meters the following checks shall be carried out.

i) Meter frame dimensions tolerances shall be minimum.

ii) The assembly of parts shall be done with the help of jigs and fixtures so that human errors are

eliminated.

iii) The meters shall be batch tested on automatic, computerized test bench and the results shall be

printed directly without any human errors.

The Bidder shall invariably furnish the following information along with his bid, failing which his bid

shall be liable for rejection. Information shall be separately given for individual type of material

offered.

Statement giving list of important raw materials, names of sub-suppliers for the raw materials, list of

standards according to which the raw materials are tested, list of tests normally carried out on raw materials.

Information and copies of test certificates in respect of bought out accessories.

List of manufacturing facilities available.

Level of automation achieved and lists of areas where manual processing exists.

List of areas in manufacturing process, where stage inspections are normally carried out of quality

control and details of such tests and inspections.

List of testing equipment available with the bidder for final testing of equipment specified and test-

plant limitations, if any, vis-à-vis type, special acceptance and routine tests specified in the relevant

standards and this specification. These limitations shall be very clearly brought out in schedule of deviations.

The manufacturer laboratory must be well equipped for testing of the meters. They must have computerized

standard power source and standard equipment calibrated not later than a year (or as per standard

practice). The details of testing facilities available for conducting

a) The routine tests.

b) Acceptance tests shall be furnished with the bid.

18.0 GENERAL :

a) Technical deviations:

All deviations to the technical specifications and commercial terms and conditions should be

specifically and clearly brought out in the Deviation form.

b) Guaranteed Technical Particulars:

The Guaranteed technical particular, duly filled in shall be submitted along with the offer.

Bid without above information shall be treated as non-responsive.

19.0 Guarantee :

In the event of any defect in the materials arising out of faulty design inferior quality of raw materials

and bad workmanship within a period of 72 months of last supply, the Bidder shall guarantee to

replace or repair to the satisfaction of the purchaser the defective parts at site free of any cost to NESCO.

Should however, the Bidder fails to do so within a reasonable time, the purchaser reserves the right

to effect repair or replacement and recover charges for repair or replacement from the Bidder by

encashment of performance Bank Guarantee.


20.0 Random Sample test after delivered at store.

The consignment of meters received at area Stores shall be accepted only after testing of meters at any

nationalized laboratory, at purchaser‟s laboratory or any other standard laboratory and the testing

charges will be borne by the supplier. Samples of meters shall be selected randomly from a lot of

meters supplied and sent to Purchasers Lab., CPRI or any other standard laboratory for acceptance test

as per relevant ISS,CBIP Report and as per procedure Technical Specification. If the sample fails in the

above tests, the entire lot will be rejected.

The following tests will be carried out at the Purchaser‟s laboratory.

1-Test of Starting Condition.

2-Test of no load condition.

3-Test of Limits of error.

4-Test of Repeatability of error.

5-Test of meter constant.

Other tests

6-Software, tamper test, test for influence quantities(voltage variation) & display parameters.

21.0 SOFTWARES

The firm has to provide required base computer & MRI software for data down loading &

analysis with free of cost.

22.0 METER READING PROTOCOL :

The Supplier has to provide Meter Reading Protocols, for billing parameters, tamper data etc. with

free of cost.

23.0 COMPONENTS

Components to be used in Whole Current Meter

Sl. No.

Name of Components

Make

1 Current Element Any make or origin conforming to IS-2705

2 Measurement / computing chips

Analog Devices, AMS, Cyrus Logic, Atmel, SAMES, NEC, Texas Instruments, Phillips, Maxim, Toshiba,

Renesas, Siemens, National Semiconductor, Free scale

semiconductor 3 Memory chips Atmel, National Semiconductors, Microchip, Texas

Instruments, Phillips Hitachi, Teridian, Toshiba, Renesas,

ST 4 Display modules Hailing, Holtek, Bonafied Technologies, Advantek, Truly

Semiconductor, Hitachi, Sony,Tianma, Fairchild

5 Communication modules National Semiconductors, Hitachi, Texas Instrument,

Philips, Hp, Agilent, Everlight

6 Optical port National Semiconductors, Hitachi, Texas Instruments, Siemens, Agilent, Philips, HP, Everlight

7 Electronic components Philips, Toshiba, Fairchild, Murata, Rohm, Siemens.

National Semiconductors, ATMEL, Texas Instruments,

Hitachi, Ligitec, OKI, EPCOS, EPSON, Panasonic


8 Mechanical parts INDIA: Precision Industrial Components Ltd, Prem Industries Ltd, AMPSON PLASTICS

9 Battery Renata, Panasonic, Varta, Tedrium, Sanyo, National, Tadiran, Duracell, Tekcell, Vitzrocell

10 RTC / Micro controller Philips, Dallas, Atmel, Motorola, NEC, Renesas, Hitachi,

Xicor, Texas Instruments, NEC, OKI, EPSON, Free scale

semiconductor,


TECHNICAL SPECIFICATION FOR TAMPER PROOF BOX TO HOUSE THE

METER.

TECHNICAL DETAILS:

The box shall be weather proof made out of polycarbonate/SMC/Combined and flame retardant

properties. It shall be capable of withstanding temperatures of boiling water for 5 minutes continuously

without distortion or softening. The thickness of the box shall not be less than 3 mm on the load bearing

side (i.e. back side of the box) and other sides, door and roof shall not be less than 2.5 mm. The box

shall have its roof tapering down to both sides for easy flow of water.

The Boxes shall generally comply with the provisions of IS 5133. The boxes shall be suitable for

outdoor/indoor application. The outdoor box shall have its roof designed for easy flow of rain water without

any stagnation on the box. The box shall be with good workmanship.

The over all dimension of the box shall be such that, there should be adequate

clearance on front side and all other sides between meter and box surface , to provide flexibility to the

installation and operation of the meter.

To facilitate for reading the parameters by manual push button on the meter, a slit with an external push

button arrangement shall be provided at the front of the box with sealing provision.

Soft rubber gaskets shall be provided all around wherever required for protection against entry of dust and

water. It shall comply with IP-53.

The contents of the box are as follows

Viewing window shall be transparent and made of non-scratchable break resistant UV stabilized,

transparent poly carbonate material with 2.0 mm thickness. The window shall be ultra sonically

welded/rigidly fixed by other means with meter box from inside. Viewing window is not required in

case of transparent box.

There should not be any ingress of moisture through this window into the box..

Internal hinges : A minimum of 2 nos. internal hinges well protected against corrosion shall be provided.

The hinges of the door should be concealed and they shall be fixed to the flanges provided to the base and

cover of the box in such a manner that the door opens by a minimum of 120 degrees & it shall not be

possible to access the hinges from out side.

Handle : Suitable handle or knob shall be provided for opening of the box door.

Fixing arrangement : The meter base supports inside the box are raised by about 10 mm in the box for ease

of wiring. While fixing the meter screws should not protrude outside. For fixing the box to wall or wooden

board 4 nos. key holes of minimum 6 mm dia shall be provided at the four corners of the meter box. The

meter is to be installed in the box and the box in the assembled condition shall have provision to fix it to a

pole with suitable GI clamp..

Latch : The door shall be provided with a MS Zinc Plated GI latch or a „U‟ clamp to secure it with

the base of the box.

Sealing arrangement : The box shall have provision for minimum 2 nos. seals to make it fully

tamper evident .

Inlet Outlet : Suitable circular holes shall be provided at the bottom of the box for inlet and

outlet with self closing fire resistance high glade engineering plastic glands securely fixed to the

box on both sides by check nuts. The incoming and outgoing cables shall be clamped to the inside base

of the meter box to ensure fixing of the cable.

Printing : Metallic label containing the letters “ NESCO” and the P.O. No. and date shall be

engraved on the top cover of the box. The name of the manufacturer shall be engraved on the bottom

half of the box. A blank sticker shall also be fixed on the meter box for use of field staff to indicate

service no. etc.

D. Port:- D.Port provision shall be made in the box with proper sealing arrangement so that data can

be down loaded from the meter with out opening meter box. Communication cable from optical port

&/or RS 232 port to D port shall also to be provided.

The fixing arrangements shall not be complex and it shall be easily approachable for connections

when the door is open and is completely tamper evident once it is sealed.

The dimensional drawing giving details of meter box shall be enclosed in the bid.

Bidders are requested to furnish detail Meter mounting arrangement in their bid. The dimensional

drawing giving details of meter box shall be enclosed in the bid.

TECHNICAL SPECIFICATION OF 4CX16 mm² LT PVC Al. CABLE

1. SCOPE:

This specification covers Manufacture, testing at works, supply and

installation of unarmoured 1100 Volts LT 4 Core X 16 mm² PVC insulated and PVC

sheathed cables, with circular aluminium conductor with yellow sheath to be used

for connection from transformer to Meter and Meter to Distribution Box/ LT

network.

2. INSTALLATIONS:

These cables are required to be installed outdoor exposed to atmosphere,

to be used for connection from transformer to Meter and Meter to Distribution

Box/ LT network with termination .

3. APPLICABLE STANDARDS :

Unless otherwise specifically stated in the specification

The cables shall conform to the following standards :

1. IS – 694 of 1990

2. IS - 5831 of 1984

3. IS - 8130 of 1984

4. IS - 10418 of 1982 (For wooden Drums)

5. IS - 10810 of 1984 (Methods of test for cable).

The above standards with latest amendment/revision in force on date of

tender shall be applicable. The Type Test on cable to be conducted at

CPRI/NABL as per IS-694/90 with latest amendment /revision as in force on the date of

inviting tender. All acceptance and routine tests shall be carried as per

IS-694/1990 with latest amendment/revision in force on date of inviting tender

during the execution or order placed and till complete supply is over.

4. TECHNICAL PARTICULARS:

a) Voltage Class and Al. Conductor

Grade :

The Cable shall be PVC insulated and PVC sheathed of yellow colour,

suitable for working voltage up to and including 1100 Volts confirming to

standard mentioned above and with ISI mark having H2 grade Class-I

aluminium circular conductor for Cables up to 10mm², H4 grade class-2

aluminium conductor shall be used for 16 sq.mm.cable.

b) Insulation and Sheath:

The type of insulation shall be Type-A as per IS-5831 of 1984.Similarly the

type of sheath shall be type ST-1 as per IS-5831 of 1984.

(i) Colour of Insulation of each core as specified in IS.

(ii) Colour of outer sheath shall be Black only.

5. SUBMISSION OF TYPE TEST CERIFICATE NOT MORE THAN

FIVE YEARS OLD FROM DATE OF OPENING OF TENDER:

The duly attested copy of Type Test Certificate at least one of the offered

sizes as per IS:694/90 be submitted from Govt. approved laboratory along

with the offer. The Type Test Certificate should cover all the test as per table

8 & one test "additional aging test" from table 9 of IS IS-694/1990

with latest amendment/revision in operation on date of inviting tender.

Party has to submit type test certificate on ordered size before

commencement of supply & get approved without affecting delivery

scheduled.

6. SEALING:

Each coil are to be provided with lead seals with seal wire .Both ends of

cables to be provided with lead seals .

6. INSPECTION AND TESTING:-

a) Testing will be carried out at the works of manufacturer's in presence of

NESCO representative at the firm's cost according to IS-694/1990 with

latest amendment/revisions if any or date of inviting tender.

Material shall not be dispatch by the supplier without having being inspected

and test certificate approved by Company's representative and obtaining of

specific dispatch instructions in writing.

b) The Company reserves the right to select sample from any

offered/inspected lot against which will be get type tested at any

Government approved laboratory as decided by the Company The results of

this type-tested sample shall be applicable for the entire quantity of

the particular lot offered or supplied by the supplier. The Company shall

bear the testing charges if sample passes all the tests and if sample fails in

any one of the tests, supplier shall have to bear testing charges, same are

recoverable from the supplier‟s any pending bill, security deposit, Bank

Guarantee or by any suitable means, whichever deem fit be the Company In

case of sample failing in aforesaid type tests, supplier shall have to replace

the whole lot materials, which should pass through the type tests, the

retesting charges will have to be paid by supplier. If any quantity against

the particular lot is consumed by the Company Supplier will agree for any

penalty/deduction in price as decided by the competent authority of

Company Decision of competent authority in case of any dispute will be final

and binding to supplier.

GUARANTEED TECHNICAL PARTICULARS

Technical information and Guaranteed Technical Particulars For supply of 4

Core 16 Sq.mm. Round, unarmoured, L.T. PVC Cable having colour of

sheath Black.

Bidder has to confirm following important requirements:

Sr. Particulars Confirmation

1. Cable shall be manufactured and supplied Yes

Confirming to IS:694/1990 with latest

Amendment if any and Company‟s specification

2. Cable drums/label shall bear ISI Mark Yes

3. ISI License shall remain valid till order is Completed Yes

4. Colour of Sheath – Black Yes

5. Size: 4 Core 16 Sq.mm. Yes

6. Shape – Round Yes

7. Standard length in case of 16 Sq.mm 500 Mtrs.± 0.5 % Yes

8. Packing shall contain only one Length. Yes

9. Packing material:

4Cx 16 Sq.mm. – Wooden drums as per

IS:10418/1982 duly Painted. Yes

10. Following shall be embossed on cable

a. Purchaser(NESCO) Yes

b. 1100 Volts Yes

c. IS:694/1990 Yes

d. Year of manufacture Yes

e. Trade Mark Yes

14. Marking on label/drum shall be as per IS:694 Yes

15. Conductor – Aluminium : Class-2, circular or shaped Grade H4 Yes

16. Maximum Conductor resistance at 20ºC :1.91 Ohm/KM. Yes

17. Volume resistivity of insulation

a. AT 27ºC – 1 x 10^13 Ohm-cm. Min Yes

b. At 70°C – 1 x 10^10 Ohm-cm. Min Yes

18. Tensile strength of Insulation and sheath - 12.5 N/mm² Min. Yes

19. Elongation at break of Insulation And Sheath – 150 % Min. Yes

20. Thickness of insulation & Sheath :

Insulation Sheath Confirmation

Average Smallest Average Smallest

1.0

0.8

1.4

0.92 Yes

INSTALLATION:

The 3 Ph 4W whole current meter to be fixed in the weather proof water proof polycarbonate

TP meter box. The TP Box having suitable arrangement to fix on wall or PSC pole with suitable

40x6 mm 2nos. GI clamp & GI nut & bolts .

The GI clamps will be hot dip galvanized confirming to IS: 2629/85 with latest amend ment.

Two nos. circular holes to be provided on the bottom of the TP Box suitable for connection

of 4Cx16 mm² PVC cable with PVC gland.

The successful bidder will provide 4Cx16 mm ² PVC LT cable (un armoured) – 10 mtr. for

each Sub-station metering . The cable should be comply IS specification. The cable to be laid

from transformer bushing to Meter box and meter box to Distribution Box with suitable cable

sockets & clamps.

SECTION –V

LIST OF ANNEXURES

(SCHEDULES AND FORMATS)

Annexure – I Tender Notice No. NESCO/CAPEX/SUPPLY & INSTALLATION/15 Date: 21.1.13

ABSTRACT OF GENERAL TERMS AND CONDITIONS Offered Materials-1 PH METER 1. Whether the bidder is a Manufacturer or Supplier & furnished relevant documents: Yes / No

2. Required Cost of Tender Furnished Yes / No

3. Required Earnest Money Furnished in Demand Draft Yes / No

4. Whether Inspection/Test certificates by User, enclosed with the bid: Yes / No

5. Manufacturer‟s past supply experience

including user‟s certificate furnished or not: - Yes / No

6. Audited annual reports for the last 3 years furnished or not: Yes / No

7. Deviation to the specification , if any

(List enclosed or not):- Yes / No

8. Whether agreed to Purchaser‟s Delivery schedule: Yes / No

If agreed,

a) Date of commencement : b) Rate of delivery per month :

9. Whether agreed to Purchaser‟s Guarantee clause:- Yes / No

10. Whether agreed for 180 days‟ validity period of Prices Yes / No

11. Whether the Prices are FIRM? Yes / No

12. Whether agreed to furnish security deposit in shape of

B.G. encashable at Balasore in case his tender is successful: - Yes / No

13. Whether agreed to penalty for delayed delivery: - Yes / No

14. Whether agreed to Purchaser‟s standard terms of payment or not: Yes / No

15. Valid ITCC & STCC furnished or not: Yes / No

Signature of the bidder

With seal of the Bidder

This form is to be duly filled up & signed by the Bidder along with seal & submitted along with the Part-I of tender.

Tender Notice No. NESCO/CAPEX/SUPPLY & INSTALLATION/15

Date: 21.1.13 Annexure – II

DECLARATION FORM

To

Sir,

Having examined the above specifications together with the Tender terms and conditions referred to therein.

1- I / we the undersigned do hereby offer to supply the materials covered thereon in complete shape in all

respects as per the rules entered in the attached contract schedule of prices in the tender.

2- I / we do hereby undertake to have the materials delivered within the time specified in the tender.

3- I / we do hereby guarantee the technical particulars given in the tender supported with necessary reports from

concerned authorities.

4- I / we do hereby certify to have furnished a copy of the tender specifications by remitting Cash/ Demand draft

& this has been duly acknowledged by you in your letter No……………..Dt……………….

5- I / we do hereby agree to furnish the composite Bank Guarantee in the manner specified / acceptable by THE

<PURCHASER>& for the sum as applicable to me / us as per clause No.23 & Annexure-III of this

specification within fifteen days of issue of Letter of intent / Purchase Order, in the event of Purchase order

being decided in my / us favour , failing which I / we clearly understand that the said LOI / P.O. shall be liable

to be withdrawn by the Purchaser

Signed this…………….Day of……………………200….

Yours faithfully,

(Signature of Bidder with Seal)

(This form should be duly filled up &

signed by the bidder & submitted along

with the original copy of the bid)

ANNEXURE-III

PROFORMA FOR COMPOSITE BANK GUARANTEE FOR SECURITY DEPOSIT, PAYMENT AND

PERFORMANCE To The Managing Director, NESCO, Balasore

This Guarantee Bond is executed this day of by us the

Bank at

P.S. Dist State

P.O.

Whereas North Eastern Electricity Company of Odisha Ltd. (NESCO) ,Corporate Office,Januganj,Balasore –

756019,Odisha registered under the Company Act 1956 (here in after called “the Purchaser”) has placed Purchase

Order No. Dt. (hereinafter called “the Agreement”) with M/s

(hereinafter called “the Contractor”) for supply of (name of the

material) and whereas NESCO has agreed (1) to exempt the Contractor from making payment of security deposit, (2)

to release 100% payment of the cost of materials as per the said agreement and (3) to exempt from performance

guarantee on furnishing by the Contractor to the NESCO a composite Bank Guarantee of the value of 10% (ten

percent) of the Contract price of the said Agreement.

1. Now, therefore, in consideration of NESCO having agreed (1) to exempt the Contractor for making payment

of security deposit, (2) to release 100% payment to the Contractor and (3) to exempt from furnishing performance

guarantee in terms of the said Agreement as aforesaid, we the

Bank, Address

(code No. _) (hereinafter referred to as “the Bank”) do hereby undertake to

pay to the NESCO an amount not exceeding Rs. (Rupees )

only against any loss or damage caused to or suffered by NESCO by reason of any breach by the said Contractor(s) of

any of the terms or conditions contained in the said Agreement.

2. We, the Bank do hereby undertake to pay the amounts due and payable under the

guarantee without any demur, merely on a demand NESCO stating that the amount claimed is due by way of loss or

damage caused to or suffered by NESCO by reason of any breach by the said Contractor(s) of any of the terms or

conditions contained in the said Agreement or by the reason of any breach by the said Contractor‟s failure to perform

the said Agreement. Any such demand made on the Bank shall be conclusive as regards the amount due and payable

by the Bank under this Guarantee. However, our liability under this guarantee shall be restricted to an amount not

exceeding Rs. (Rupees ) only.

3. We, the Bank also undertake to pay to NESCO any money so demanded not

withstanding any dispute or dispute raised by the Contractor(s) in any suit or proceeding instituted/ pending before any

court or Tribunal relating thereto our liability under this Agreement being absolute and unrevocable.

The payment so made by us under this bond shall be valid discharge of our liability for payment there under

and the Contractor(s) shall have no claim against us for making such payment.

4. We, the Bank further agree that the guarantee herein contain shall

remain in full force and affect during the period that would be taken for the performance of the said Agreement and it

shall continue to remain in force endorsable till all the dues of NESCO under by virtue of the said Agreement have

been fully paid and its claim satisfied or discharged or till NESCO certifies that the terms and conditions of the said

Agreement have been fully and properly carried out by the said Contractor(s) and accordingly discharge this guarantee

and will not be revoked by us during the validity of the guarantee period.

Unless a demand or claim under this guarantee is made on us or with

(Local Bank Name, address and code No.)

, Balasore in writing on or before

(date) we shall be discharged from all liability under this guarantee thereafter.

5. We, the Bank further agree that NESCO shall have the fullest liberty without

our consent and without affecting in any manner our obligations hereunder to vary any of the terms and conditions of

the said Agreement or to extend time of performance by the said Contractor(s) and we shall not be relieved from our

liability by reason of any such variation or extension being granted to the said Contractor(s) or for any forbearance act

or omission on part of NESCO or any indulgence by NESCO to the said Contractor(s) or by any such matter or thing

whatsoever which under the law relating to sureties would but for this provisions have effect of so relieving us.

6. The Guarantee will not be discharged due to change in the name, style and constitution of the Bank and or

Contractor(s).

7. We, the Bank lastly undertake not to revoke this Guarantee during its currency

except with the previous consent of NESCO in writing.

Dated the day of Two thousand .

Not withstanding anything contained herein above.

Our liability under this Bank Guarantee shall not exceed Rs._ (Rupees

) only.

The Bank Guarantee shall be valid up to only.

We or our Bank at Balasore (Name & Address of the Local Bank) are liable to pay the guaranteed amount

depending on the filing of claim and any part thereof under this Bank Guarantee only and only if you serve upon us or

our local Bank at Balasore a written claim or demand and received by us or by Local Branch at Balasore on

or before Dt. otherwise bank shall be discharged of all liabilities under this guarantee thereafter.

N.B.:

(1) Name of the Contractor:

For

(Indicate the name of the Bank)

(2) No. & date of the Purchase order /

agreement: (3) Amount of P.O. :

(4) Name of Materials :

(5) Name of the Bank:

(6) Amount of the Bank Guarantee:

(7) Name, Address and Code No. of the Local Branch:

(8) Validity period or date up to which the agreement is valid:

(9) Signature of the Constituent Authority of the Bank with seal:

(10) Name & addresses of the Witnesses with signature:

(11) The Bank Guarantee shall be accepted only after getting confirmation from the respective Banks.

Annexure- V

(Tender No. NESCO / CAPEX /SUPPLY AND INSTALLATION/15,Gr.B , DTD.21.01.13)

PRICE SCHEDULE :

Sl.

N

o.

Item Description Unit Qty. Supply Installation Total

unit

Cost

(Supp

ly &

Install

ation)

(8+12)

Total

Cost

(Supp

ly &

Install

ation)

(13x4)

Unit

Supply

price

with all

Taxes

and

Duties

(In Rs.)

Unit

Freight,

Insuranc

e charges

for

Transit &

storage

etc.

Total

Unit

price of

material

for

destinati

on

(5+6)

Total

supply

cost of

the

Item

( 4*7)

Unit

Erection,

Handling

&

Commiss

ioning

charges/

Labour

charges

Service

tax*

on

Colum

n No.

9

Total

Unit

charges

FOR

Erection

&

Commiss

ioning

(with all

taxes)

(9+10)

Total

Instal

lation

cost

of

the

Item

(4*11

)

1 2 3 4 5 6 7 8 9 10 11 12 13 14

1 Supply & Installation

of Earthing of Sub-

station 100KVA &

above.

No. 918

2 Supply & Erection of

11 KV Automatically

Switched Capacitor

Banks

No. 3


of PSC Pole against

replacement of

damaged poles

i)8 m x 200 Kg. PSC

Pole No.

580

0

ii)9 m x 300 Kg PSC

pole No.

290

0


of DTR Metering for

25 KVA transformers

& below capacity

No. 800

0

Note : I) Detail Price breakup item wise to be enclosed by the bidder.

2) Any column left blank shall be treated as NIL / Inclusive of

3) Unit price under Column-13 is inclusive of all taxes and duties.

4) In case of discrepancy between unit price and total price, the unit price shall prevail over the total price.

5) Multiple Price offer shall be rejected outright.

Signature of the Bidder with Company Seal

N.B : The above is to be duly filled up, signed and submitted in sealed condition in a separate envelop superscribed as “

Part-II Bid – Price Bid”

ANNEXURE VI (A)

(TECHNICAL DEVIATION FORMAT)

Clause No

Prescribed as per Tender Specification

Deviation in the bidder's Offer

Bidder’s Signature with Seal.

N.B :

The bidder has to mention all technical deviations in his offer which differs from the Technical Requirement of this Tender in above format. Deviations not mentioned in above format but mentioned in any other format

or in any other part of the offer document shall not be considered as deviation and the bidder shall be deemed

to have accepted our technical requirement without deviation.

(COMMERCIAL DEVIATION FORMAT) ANNEXURE VI (B)

Clause No

Prescribed as per Tender Specification

Provided in the bidder's Offer

Bidder‟s Signature with Seal.

N.B :

The bidder has to mention all commercial deviations in his offer which differs from the Commercial Requirement

of this Tender in above format. Deviations not mentioned in this format but mentioned in any other format or in any

other part of the offer document shall not be considered as deviation and the bidder shall be deemed to have accepted

our commercial requirement without deviation.

ANNEXURE VI (C)

DEVIATION STATEMENT

On this schedule the bidder shall provide a list of non-compliance / deviations of offered materials with

our Guaranteed Technical Particulars & other terms and conditions contained in our Tender Specification.

Each non-compliance shall be referred to the relevant specification clause/sl.no of the Tender Specification. Any deviation not mentioned in this schedule shall not be considered as a valid deviation.

In such cases the bidder shall be deemed to have agreed to our tender terms & Guaranteed Technical

Particulars.

Page No. / Clause No. of

Tender Specification. Requirement as per Tender

Specification Non-Compliance / Deviation

offered

Signature of the bidder with Company Seal

ANNEXURE-VII

SELF DECLARATION FORM

Name of the Purchaser: -------------------------

Sir, Tender Notice No: -----------------------------

1. I / we, the undersigned do hereby declare that, I / we have never ever been blacklisted

and / or there were no debarring actions against us for any default in supply of material /

equipments or in the performance of the contract entrusted to us in any of the Electricity

Utilities of India.

2. In the event of any such information pertaining to the aforesaid matter found at any given

point of time either during the course of the contract or at the bidding stage, my

bid/contract shall be liable for truncation / cancellation / termination without any notice at

the sole discretion of the purchaser.

Place- Date-

Yours faithfully,

Signature of the bidder With seal

(This form shall be duly filled-up and signed by the bidder & submitted along with the original copy of the Bid.)

ANNEXURE – VIII (A)

PROFORMA FOR BANK GUARANTEE FOR EARNEST MONEY DEPOSIT

(ON NON-JUDICIAL STAMP PAPER OF Rs.100/-)

Ref Date Bank Guarantee No:

In accordance with invitation to Tender Notice No.--------- Dated ------------- of North Eastern Electricity

Supply Company of Odisha Ltd. [herein after referred to as the NESCO] for the purchase of

(name of Material)

M/s Address

wish/wished to participate in the said tender and

as the Bank Guarantee for the sum of Rs.

[Rupees Valid for a period of ………… days (in words) is

required to be submitted by the Bidder.

1.We the [Indicate the Name of the Bank]

[Hereinafter referred to as „the Bank‟] at the request of M/S

[Herein after referred to as

supplier (s)] do hereby unequivocally and unconditionally guarantee and undertake to pay during the above

said period, on written request by NESCO an amount not exceeding Rs. to the NESCO,

without any reservation. The guarantee would remain valid up to 4.00 PM of _ [date] and

if any further extension to this is required, the same will be extended on receiving instructions from M/s

on whose behalf this guarantee has been issued.

2. We the [Indicate the name of the bank] do hereby further

undertake to pay the amounts due and payable under this guarantee without any demur, merely on a demand

from the NESCO stating that the amount claimed is due by way of loss or damage caused to or would be

caused to or suffered by the NESCO by reason of any breach by the said supplier [s] of any of the terms or

conditions or failure to perform the said Bid. Any such demand made on the Bank shall be conclusive as

regards the amount due and payable by the Bank under this guarantee. However, our liability under this

guarantee shall be restricted to an amount not exceeding Rs. (in wards)

3. We, the Bank undertake to pay the NESCO any money so demanded not withstanding any

dispute or disputes so raised by the supplier [s] in any suit or proceeding instituted/pending before any Court or

Tribunal relating thereto, our liability under this agreement being absolute and unequivocal. The payment so

made by us under this bond shall be a valid discharge of our liability for payment there under and the supplier(s)

shall have no claim against us for making such payment.

4. We, the _Bank [Indicate the name of the bank] or our local branch at Balasore further agree that

the guarantee herein contain shall remain in full force and effect during the aforesaid period of --------------

days and it shall continue to be so enforceable till all the dues of the NESCO under by virtue of the said Bid have

been fully paid and its claims satisfied or discharged or till NESCO certifies that the terms and conditions of the

said Bid have been fully and properly carried out by the said Supplier [s] and accordingly discharges this

guarantee. Unless a demand or claim under this guarantee is made on us in writing on or before the

(date) we shall be discharged from all liability under this guarantee thereafter.

5. We, the Bank [Indicate the name of the bank] or our local branch at Balasore further agree that

the NESCO shall have the fullest liberty without our consent and without affecting in any manner our

obligations here under to vary any of the terms and conditions of the said Bid or to extend time of performance by

the said Supplier [s] from time to time or to postpone for any time or from time to time any of the powers

exercisable by the NESCO against the said supplier [s] and to forbear or enforce any of the terms and conditions

relating to the said bid and we shall not be relieved from our liability by reason of any such variation,

postponement or extension being granted to the said Supplier [s] or for any forbearance act or omission on the

part of the NESCO or any indulgence by the NESCO to the said Supplier[s] or by any such matter or thing

whatsoever which under the law relating to sureties would but for this provision, have effect of so relieving us.

6. This guarantee will not be discharged due to the change in the name, style and constitution of the Bank or the

supplier [s].

7. We, the Bank or our local branch at Balasore lastly undertake not revoke this Guarantee

during its currency except with the previous consent of the NESCO in writing.

8. We, the Bank further agree that this guarantee shall also be invokable at our

place of business at Balasore in the State of Odisha.

Dated Day of 2011.

Witness ((Signature, names & address) For [Indicate the name of Bank]

1. Power of Attorney No. 2 Date:

SEAL OF BANK

Note: The non-judicial stamp paper of worth Rs.100/- shall be purchased in the name of the bank,

which has issued the bank guarantee.

ANNEXURE- VIII (B)

FORM OF EXTENSION OF BANK GUARANTEE (ON NON-JUDICIAL STAMP PAPER OF Rs.100 /-)

Ref. No.

Dated:

NESCO Ltd., Corporate Office,Januganj Balasore - 756019

Dear Sirs,

Sub: Extension of Bank Guarantee No. for Rs. favouring yourselves expiring

on account of M/s.

in respect of contract No. _ dated

(hereinafter called original bank guarantee).

At the request of M/s. _ we bank Branch office at having its head

office at

do hereby extend our liability under the above mentioned guarantee No.

Dated for a further period of Years/months from to

expire on

except as provided above, all other terms and conditions of the original bank

guarantee

No. dated shall remain unaltered and binding.

Please treat this as an integral part of the original guarantee to which it would be

attached. Yours faithfully,

For

Manager/Agent/Accou

ntant Power of

Attorney No.

Date:

SEAL OF BANK

Note: The non-judicial stamp paper of worth Rs.100 /- shall be purchased in the name of the bank,

which has issued the bank guarantee.

SECTION –VI

GROUP – B

GTP

FOR

1 Earth Electrode, GI Flat

2 Capacitor Bank

3

PSC Pole , Coil Earth

4 3 Ph 4 W Whole Current Meter, 4Cx16 mm² LT PVC Cable

(Tender No. NESCO / CAPEX /SUPPLY AND INSTALLATION/15 , DTD.21.01.13)


Earth Electrode (40 NB 2.5 Mtr Length)

Guaranteed Technical Particulars (To be submitted along with Offer)

Sl. No.

Particulars

Bidder’s Offer

1. Location of Factory or Place of Manufacture

2. Maker‟s Name, Address & Country

3. Size of

a Pipe

b Earthing Strips

4. Length

5. Thickness of Pipe

6. Galvanization Process

7. Galvanization thickness

a For Earthing device

b For Connecting Flat

8. Galavanization tests to be conducted as per ISS

9. Any other Particulars ( like details of Clamp/ G.I. Bolts)

10. Details of Drawings submitted

G.I. Flat (50 x 6 mm) & G.I. Flat (25 x 4 mm)

Guaranteed Technical Particulars (To be submitted along with Offer)

Sl. No.

Particulars

Bidders’ Offer

1 Location of Factory or Place of Manufacture

2 Maker‟s Name, Address & Country

3 Size of G.I. Flat

4 Standard Length

5 Galvanization Process

6 Galvanization thickness

7 Galavanization tests to be conducted


PSC Pole : 9 Mtr x 300 Kg , 8 x 200 Kg

GUARANTEED TECHNICAL

PARTICULARS


(To be submitted along with offer)

Sl

No.

Description

Unit

Bidder‟s Offer

9 Mtr X

300 Kg 425

Kg

8 Mtr X

200 Kg

1 Type of pole

2 Factor of Safety

3 Overall Length of Pole Meters

meters

4 Working Load Kg Kg

5 Overall Dimensions

A Bottom Depth mm

B Top Depth

C Breadth

6 Reinforcement Detail:

7 Diameter of prestressing wire

8 No. of Tensioned wires

9 No. of Untensioned wire

10 Length of each untensioned wire

11 Concrete Detail

A Cement Type

B Grade

C Type

D

Quantity Cubic

meter/pole

E Standard confirming to:

12 Steel Quality Kg/Pole

A Ultimate Tensile Strength (UTS)

Km/Cm²

B Weight


EARHTING COIL

GUARANTEED TECHNICAL

PARTICULARS


(To be submitted along with

Offer)

Sl.

No.

GENERAL TECHNICAL PARTICULARS Bidder‟s

Offer

1 Nominal diameter of wire

2 No. of turns

3 External dia of Coil

4 Length of Coil

5 Mass of Zinc

6 Total weight of Coil

7 Whether drawing enclosed (yes)


GUARANTEED TECHNICAL PARTICULARS FOR ISI MARKED WHOLE

CURRENT A.C. 3- PHASE, 4-WIRE STATIC,20-100A, WATT-HOUR METERS,

CAT-C


Sl. No.

Item Purchaser’s Requirement Bidder’s Offer

1 Make -

2 Type -

3 Country of origin -

4 Application 3 phase 4 wire, direct connected

5 Rated Voltage 240 V (Phase to neutral)

6 Rated Current 20Amps (Basic current)

7 Frequency 50 Hz ± 5 %

8 Maximum current capacity

100 Amps

9 Minimum starting

current in % of base current

0.2% of Ib

10 Loss in potential circuit

≤ 1.5w or 10 VA

11 Loss in current circuit ≤ 1 VA

12 Change in error due to :

13 a. Variation in frequency

50 Hz ± 5 %

b. Variation in temperature

As per IS 13779

c. Variation in voltage As per IS 13779

14 Accuracy Class 1.0

15 Total Weight of meter To be specified by the supplier

16 Details of case To be specified by the supplier

17 H.V. withstand As per IS 13779 voltage in kV (RMS) (Mention the kV for conducting & Insulating portions, separately)

18 Insulation Resistance As per IS 13779

18 Standard to which the meter confirm

As per CL 3.0 also mention if any other standard followed.

20 Type of Energy Registration Mechanism.

To be specified

21 MD reset mechanism As per clause 9.3 of spec

22 Insulation test (voltage 50 Hz for 1 min.)

As per IS 13779

23 Temperature co- efficient from 10% of rated load to 100 % rated load ( 5°C to 45°C )

As per IS 13779

24 Working Voltage range +20% to - 30% of Vref

25 Type of load (linear, non linear, balanced /unbalanced at any P.F.)

All type of load.

26 Display details

i. Display Cycle (descriptive In order of display)

As specified in Cl.7

ii. Process of display (Automatic in cyclic manner / through push button.

Both options should be available as per Cl. 7

.

iii. Digits (nos.) 7 (Seven)

iv. Segments for display of one digit

7 (Seven)

v. Period of display of each parameter

Should be sufficient to read & note (around 10 sec.)

vii. Display scroll-lock facility

Required.(Desired parameter can be seen for 5 minutes or more time instead of ‘scroll lock’ is also acceptable.)

27 Mechanism for MD reset

Automatic on 24.00 hrs of last day of month.

28 Memory Non volatile memory without battery back-up at least 12 years.

29 Non volatile memory Should be sufficient to store data of consecutive twelve billing periods with Abnormal event details & TOD time Zones and tariff rates, load survey and other information as detailed in technical specification.

30 Meter can be powered up by internal power source in the absence of supply voltage.

Yes

30 Tamper data preser- vation capacity

Should be able to store last 150 events (occurrences + restoration)

31 Multiplying factor (If meter is used for current ratio)

No multiplying factor required.

32 Load Survey capability

a. Parameter Logged 1.Real Time Clock - Date and Time 2.Current - IR 3.Current - IY 4.Current - IB

5.Voltage - VRN 6.Voltage - VYN 7.Voltage - VBN 8.Block Energy - kWh 9.Block Energy - kvarh - lag

10.Block Energy - kvarh -lead 11.Block Energy - kVAh

b. Logging interval programmable and 30 Minutes by default

c. No. of days of Load Survey

50 days

33 Earthing Terminal As per IS 13779

34 Time of the day Zone 2 time zones per day will be available for energy and demand with facility for 8 zone slots.

35 Capability for fraud Prevention & detection

As per clause 8.0

i Phase Sequence reversal

Meter should record actual energy.

ii Missing Potential & Potential imbalance

Meter shall log the event with date & time.

iii CT Open & CT Short Meter shall log the event with date & time.

iv Reversal of CT Polarity.

The meter shall record actual energy & shall be capable of detecting and recording occurrence and restoration with date and time of CT reversal with phase identification.

v Power on off Meter shall log the event with date & time. Persistence time-15 minutes.

vi Current Imbalance Meter shall log the event with date & time when current imbalance is

30% or more for more than 15 minutes & will work as per prevailing electrical condition.

vii Magnetic tamper As per CBIP report-88 with latest amendment.

viii Neutral Disturbance: Meter shall be provided with the proper logic to identify neutral disturbance & record the event.

ix Software locking: The meter shall have password protected software locking provision to enable any change in TOD timings or any other requirement of DISCOM

36 Sealing and Locking Arrangement

Adequate sealing & Locking arrangements shall be provided, to avoid tampering (To be specified)

37 Type of communication

i) Local – Optical port ii) RS 232 Port

To be specified. To be specified.

38 Real Time Clock Time Drift and adjustment facility through CMRI and PC / Laptop with hardware and software lock - Specify

39 Mandatory Spare parts

a. Interface cords As per CBIP technical report 111 with latest amendments one for

each meter.

b. CMRI (DCD) software

As per CBIP technical report 111 with latest amendments

c. Others (if any) To be specified

40 Meter Reading Protocol

The Supplier has to provide Meter Reading Protocols, for billing parameters, tamper data etc.

41

Self Diagnostic features

The meter should display any suitable indication like ‘ OK’/Circuit OK etc. during meter installation. It should also indicate any failure of RTC

battery/memory. 42 Softwares The firm has to provide required

base computer & MRI software for data down loading & analysis during the guarantee period with free of cost.

43 Current Element Any make or origin conforming to IS-2705

44 Measurement /

computing chips Analog Devices, AMS, Cyrus Logic,

Atmel, SAMES, NEC, Texas Instruments,

Phillips, Maxim, Toshiba, Renesas,

Siemens, National Semiconductor

45 Memory chips Atmel, National Semiconductors, Microchip, Texas Instruments, Phillips

Hitachi, Teridian, Toshiba, Renesas

46 Display modules Hailing, Holtek, Bonafied Technologies, Advantek , Truly Semiconductor, Hitachi,

Sony, Tianma, Fairchild

47 Communication modules National Semiconductors, Hitachi, Texas Instrument, Philips, Hp, Agilent, Everlight

48 Optical port National Semiconductors, Hitachi, Texas

Instruments, Siemens, Agilent, Philips, HP,

Ever light

49 Electronic components Philips, Toshiba, Fairchild, Murata, Rohm, Siemens. National Semiconductors,

ATMEL, Texas Instruments, Hitachi,

Ligitec, OKI, EPCOS, EPSON, Panasonic

50 Mechanical parts INDIA: Precision Industrial Components Ltd, Prem Industries Ltd, AMPSON

PLASTICS

51 Battery Renata, Panasonic, Varta, Tedrium, Sanyo, National, Tadiran, Duracell, Tekcell

52 RTC / Micro controller Philips, Dallas, Atmel, Motorola, NEC, Renesas, Hitachi, Xicor, Texas

Instruments, NEC, OKI, EPSON


TECHNICAL PARTICULARS OF T.P BOX FOR 3 PH4W, 20-100A WC METER


Sr

No.

Characteristics Purchaser’s

Requirements

Bidders Offer

1 Manufacture’s Name

2 Material used for

box body

Polycarbonate/SMC/Polyc

arbonate & SMC.

3 Material

withstanding temperature

Capable withstanding

temperatures of boiling water for 5 minutes continuously without distortion or softening.

4 Dimensions of box ( l

x w x h)

Drawing to be submitted

by bidder for approval.

5 Thickness (mm) 3mm on the load bearing

side(i.e. back side of the box) & other sides 2.5mm.

6 Color Off white/Admiralty

Grey/Transparent.

7 Viewing window Shall be transparent

8 Material Polycarbonate

9 Dimensions Suitable to give clear view

of meter display/name

plate.

10 Shade arrangement

to window

To be Provided

11 No. of hinges Two

12 Handle Provision To be Provided

13 Earthing provision To be Provided

14 Sealing Arrangement Two no. sealing

arrangements to be provided

15 Inlet & Outlets One for inlet and one for

outlet with suitable gland to be provided.

16 Gasket To be Provided

17 Gasket provision for

door and window

As per requirement to

make the box, water &

dust proof.

18 Material of the

gasket

Soft Rubber

19 Suitable for outdoor

installation

Yes.

20 Printing Metallic label containing

the letters of ‘”CESU, GoO, CAPEX Programme” ,PO No & Date.



GUARANTEED TECHNICAL PARTICULARS

Technical information and Guaranteed Technical Particulars For supply of 4 Core 16

Sq.mm. Round, unarmoured, L.T. PVC Cable having colour of sheath Black.

Bidder has to confirm following important requirements:

Sr. Particulars Bidders Offer

1. Cable shall be manufactured and supplied

Confirming to IS:694/1990 with latest

Amendment if any and Company‟s specification

2. Cable drums/label shall bear ISI Mark

3. ISI License shall remain valid till order is Completed

4. Colour of Sheath – Black

5. Size: 4 Core 16 Sq.mm.

6. Shape – Round

7. Standard length in case of 16 Sq.mm 500 Mtrs.± 0.5 %

8. Packing shall contain only one Length.

9. Packing material:

4Cx 16 Sq.mm. – Wooden drums as per

IS:10418/1982 duly Painted.

10. Following shall be embossed on cable

a. Purchaser(NESCO)

b. 1100 Volts

c. IS:694/1990

d. Year of manufacture

e. Trade Mark

11. Marking on label/drum shall be as per IS:694

12. Conductor – Aluminium : Class-2, circular or shaped Grade H4

13. Maximum Conductor resistance at 20ºC :1.91 Ohm/KM.

14. Volume resistivity of insulation

a. AT 27ºC – 1 x 10^13 Ohm-cm. Min

b. At 70°C – 1 x 10^10 Ohm-cm. Min

15. Tensile strength of Insulation and sheath - 12.5 N/mm² Min.

Yes

16. Elongation at break of Insulation And Sheath – 150 % Min. Yes

17. Thickness of insulation & Sheath :

Insulation Sheath

Average Smallest Average Smallest

1.0

0.8

1.4

0.92


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