Section VI. Employers Requirements 1

BIDDING DOCUMENT FOR

DESIGN, SUPPLY, INSTALLATION, TESTING &

COMMISSIONING OF ACCEPTANCE TEST

LABORATORY

BID PACKAGE NO.: UREDS-G-10

UNDER IDA CREDIT NO. 5381-BD

Rural Electricity Transmission & Distribution Project

VOLUME: II OF III

(PART II-B)

(EMPLOYER’S REQUIREMENTS)

ISO 9001, ISO 14001 &

OHSAS 18001 Certified

BANGLADESH RURAL ELECTRIFICATION BOARD

(BREB)

HEAD OFFICE, ACADEMIC BUILDING, 6TH FLOOR

NIKUNJA-2, KHILKHET, DHAKA-1229

BANGLADESH

SEPTEMBER 2018

Section VI. Employers Requirements 2

Bidding Document for

DESIGN, SUPPLY, INSTALLATION, TESTING &

COMMISSIONING OF ACCEPTANCE TEST

LABORATORY

ICB No.: UREDS-G-10

VOLUME: II OF III

(PART II-B)

(EMPLOYER’S REQUIREMENTS)

ISSUED ON: ________________

EMPLOYER: BANGLADESH RURAL ELECTRIFICATION

BOARD (BREB)

PROJECT: UREDS; DCSD (UP-GRADATION OF RURAL

ELECTRICITY DISTRIBUTION SYSTEM;

DHAKA, CHITTAGONG & SYLHET

DIVISION) PROJECT UNDER RURAL

ELECTRICITY TRANSMISSION AND

DISTRIBUTION (T&D) PROJECT OF IDA.

COUNTRY: BANGLADESH

SEPTEMBER 2018

3

VOLUME: II OF III

(PART II-B)

(EMPLOYER’S REQUIREMENTS)

TABLE OF CONTENTS

SECTION VI: EMPLOYER’S REQUIREMENTS .............................................................3

3.0 Building Equipment and Different Systems Technical Speciffactions....................4

4.0 Civil: General Technical Requirements for Building Works ..............................117

5.0 Civil: Building and Ancillary Facilities..................................................................138

6.0 Civil: Building Sanitary and Water Supply Works & Ancillary Facilities ........188

7.0 Civil: Internal & External Electrification, CCTV, PABX & PAS ......................201

8.0 Miscelleaneous: Desktop Computer, Printer, Photocopy Machine .....................219

9.0 Miscelleaneous: Air Conditioning ..........................................................................223

10.0 Miscelleaneous: Laboratory Furniture ................................................................225

11.0 Fire Detection & Firefighting Protection .............................................................227

12.0 Forms & Procedures ..............................................................................................230

13.0 Floor Plans ..............................................................................................................248

14.0 Contacts ..................................................................................................................253

4

SECTION VI

B. CIVIL

3.0 Building Equipment and Different Systems Technical

Specifications

Table of Contents

Description Specification # Page No.

Overhead Bridge Crane 100 ton Specification # 34 5

Lifts/Elevators (passenger and cargo)

Specification# 35

31

Close Circuit TV (CCTV) System for

monitoring

Specification# 36 51

Public Address (PA) System

Specification# 37

61

PABX System Specification# 38

71

Fire-Fighting System Specification# 39

79

Generator Set Specification# 40

103

5

Specification# 34

BANGLADESH RURAL ELECTRIFICATION BOARD (BREB)

Technical Specification

Overhead Bridge Crane - 100 Ton

1. Scope

1.1 This specification covers minimum technical requirements for the design, supply, assembly, installation, testing and commissioning of an Overhead Bridge Crane (on turn key basis) for

loading and unloading power transformers at Bangladesh Rural Electrification Board (BREB)

material Acceptance Testing Laboratory at Palli Biddyut Area, Savar Dhaka, Bangladesh.

1.2 The 100 ton bridge crane shall consist of parallel runways with a travelling bridge spanning the gap. A hoist will be the lifting component of the crane, travels along and across the bridge. The

bridge shall be rigidly supported on steel columns to be fixed at ground level. Study and design

of crane shall be the responsibility of the vendor to be approved by BREB.

1.3 Any departure from the provisions of this specification shall be disclosed at the time of bidding under the title “deviation from specifications”.

1.4 This specification is property of BREB and subject to change or modification without any notice.

2. Reference Standards

2.1 The Overhead Bridge Crane shall be supplied according to this specification. The Crane shall be designed, tested, assembled and conform to the latest editions of relevant

applicable international standards in practice to their design, construction, production and

testing including but not limited to those listed below, and their normative references:

ASME B30.2: Overhead and Gantry Cranes (Top Running Bridge, Single or Multiple Girder, Top Running Trolley Hoist)

ASME B30.17: Cranes and Monorails (with underhung Trolley or Bridge)

ASME B30.11: Monorails and Underhung Cranes

BS 466: Specification for Power driven overhead travelling cranes, semi-goliath and goliath cranes for general use

ISO 4301-5: Cranes; classification; part 5: overhead travelling and portal bridge cranes

ISO 8686-5: Cranes; design principles for loads and load combinations; part 5: overhead travelling and portal bridge crane

ASD & LRFD: Manual of Steel Construction

AISC: American Institute of Steel Construction

AISE: Technical Report No. 6

ANSI a 14.3-1992: Safety Requirements for fixed ladders

ASME B30.9: Slings

ASME b30.10: Hooks

ASME B30.20: Below-the-Hook Lifting Devices

Applicable Bangladesh standards for safety, operation and protection

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2.2 Conformance to national standards only, such as Chinese, Indian, or Russian is not acceptable.

3. Experience and Quality Control

3.1 The Crane components, assemblies and accessories shall be manufactured at a plant that has fabricated units of similar design and characteristics for a period not less than ten years and that

holds ISO: 9001-2015 Certification for the quality management.

4. Service Conditions

4.1 The Crane components, assemblies and accessories shall be suitable for performing tests in a testing laboratory under the local service conditions in Bangladesh, which are as follows

a) Altitude above mean sea level (MSL): less than 1,000 meters b) Maximum summer peak ambient temperature: +45°C c) Minimum outdoor winter temperature: 3°C d) Average daily temperature: +35°C e) Maximum yearly average temperature: +30°C f) Relative Humidity: 50% - 100% g) Yearly average Humidity: 80% h) Pollution level: Moderate i) Storage temperature: -10°C - +70°C j) Operating temperature: -10°C - +45°C

5. Clearances

5.1 Safe and working clearances shall be maintained between the crane, the building, other objects, infrastructure or electric wires during normal operating conditions.

5.2 In the design, all factors that influence, such as wheel float, truss sag, bridge skewing or trolley positions and configuration shall be considered.

5.3 Schedule of working clearances shall be provided with the design for review and approval.

6. Technical Specifications

6.1 The overhead bridge crane shall be used for the purpose of handling power transformers up to load of 100 ton at a transformer testing bay.

6.2 The crane shall be used for continuous duty with cross travel, long travel and hoist movement, which may occur simultaneously.

6.3 This specification is adopting definitions from ASME B30-2. Therefore, for cross references applicable Standards as given clause 2 shall be consulted, referred and applied.

6.4 The master controller shall be wired and used by the operator. No cabin would be required.

6.5 The crane shall be designed, assembled and tested before dispatch. At site crane shall be installed, tested and commissioned. The technical and other parameters shall be as follows:

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Technical Specifications

Capacity 100 ton lifting capacity

Hoist limit 100 ton (keep factor of safety in view)

Span Wheel center to wheel center

Long Travel 30 meters (refer to floor plan)

Cross Travel 15 meters (refer to floor plan) with 10m centered on the lab railroad and 5m laydown area to the left (facing the doors from

inside) of the railroad. Height of lifting 10/11 meters from ground level with dual/variable speed (effective

hook height shall be 10m) Operating and Working

Speed maximum (m/s) Vendor to specify for the offered crane for: a) Hoist b) Cross Travel c) Long Travel

Duty Cycle (related to

Drive Motor &

Mechanisms)

Vendor to specify for the offered crane for: a) Hoist b) Cross Travel c) Long Travel

Motor Ratings Electric Drive Motor

Ratings & Frame size

Vendor to specify for the offered system for: a) Hoist b) Cross Travel c) Long Travel

Gear Box Vendor to specify for the offered system for: Gear Box Size for: a) Hoist b) Cross Travel c) Long Travel

Acceleration mm/s Vendor to specify for the offered crane for: a) Hoist b) Cross Travel c) Long Travel

Hoist Rope Size and

number of falls of rope Vendor to confirm as below and specify for the offered Crane

System Control Wired Master Control (No cabin operation)

Type of Control Wired Master Control

Input Voltage 240/415 ± 5% Volts, 50 Hz, 3 Phase - AC

Control Voltage 110 V AC or as proposed by the vendor

Duty Class Class -3, Indoor Service

Design Standards ASME/IEC /ANSI/IEEE/BS

Runway Rail Size for Cross

Travel Vendor to specify for the offered crane (kN/m)

Runway Rail Size for Long

Travel Vendor to specify for the offered crane (kN/m)

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Wheel Size for Cross

Travel Vendor to specify for the offered crane (dia. mm)

Wheel Size for Long Travel Vendor to specify for the offered crane (dia. mm)

Brake Drum Size for Hoist Vendor to specify for the offered crane (dia. mm)

Brake Drum Size for Cross

Travel Vendor to specify for the offered crane (dia. mm)

Brake Drum Size for Long

Travel Vendor to specify for the offered crane (dia. mm)

Brake Drum Size for

Parking Brake Vendor to specify for the offered crane (dia. mm)

Crane Type Double Girder, Top running *Rail size shall be designed by the supplier and vendor to provide

calculations for review Bridge Travel Motorized, geared, dual speed, had chain drop

*supplier to design based on site requirements and vendor to

provide calculations for review

Bridge Beam and Columns Required *sizes shall be as per design requirements and vendor to provide

calculations for review Trolley Type Motorized, geared with dual/variable speed

Control System Conventional master control for all motions

Crane operations Through wire master control

Operator Cabin None

Structural Fabrication Crane Structural Constructional Details

Bridge Leg Box type construction

Raw material Only steel plates, tested and certified quality

Welded Joints To be followed for Bridge/leg Fabrication

Number of Joints To be followed for Bridge/leg Fabrication

Number of Joints For span up to 25 meters - two joints, for span 25 meters to 50 meters - three joints

Welding Electrodes Electrode only should be used: For all Horizontal Welding: E 7018

For all Vertical Welding: E 7048.

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Welded Joint Testing All Butt-Welded Joints (both compression / tension and flanges / web joints) shall be subjected to 100% X-Ray Testing and X-Ray.

Films to be produced toBREB for evaluation and shall form part of

technical submission.

Splice Joint No splice joint is allowed in girder fabrication.

Leg connection Leg to bridge connection shall be designed for double shear.

Platform on Girders The Platforms provided on both the Girders shall be fixed through bolted joints using fit bolt only.

Wheel Assembly The Wheel Assembly coming for Cross Travel (CT) & Long Travel (LT) shall be of live axle system with L-Type Bearings.

Heat Treatment The Trolleys (where applicable) shall be Stress Relieved by thermal heat-treatment process after welding and non-destructive

testing (NDT) examinations. All welding shall be tested by NDT

means [MPI, LPI & RT] after Stress Relieving operation. Machining Operation All mechanical mating surfaces and wheel seating areas are to be

machined to the required finish and protected.

Surface Cleaning Both the Girders and the Trolleys are to be shot blasted or chemically treated for surface cleaning, after completion of all

operations but prior to painting. Painting The crane parts are to be painted as follows:

One coat of Primer with 25 microns of DFT (Dry Film Thickness)

and 48 hours of compulsory curing after painting. Two coats of

Enamel Paint (Yellow) each with a DFT of 25 microns and

intermittent curing of minimum 16 hours.

Gears Gears in all the stages shall be helical in design and to be of machined & ground and hardened.

Gear Box Casing Shall be of fabricated type and stress relived by thermal heat-treatment process, prior to machining

Type of Coupling Only geared coupling to be used: a) between Electric Motor and Gear Box b) between Gear Box and Rope Drum c) between Gear Box and Trolley Wheels

Rope Drum Shall be of fabricated type and stress relieved. The circumferential weld joints shall be tested by 100 % X-Ray for quality assurance.

Wheels The wheels shall be of Drop-Forged and wheel tread hardened to 300/350 BHN (Brinell Hardness Number). Wheels shall be fitted with L-Type Bearings

Mechanical Joints Fit Bolts as per IS 3640-1982 for all joints coming in main members and platform with reamed holes

Pulley Dimension Rope Pulley diameter shall be 23 times that of Rope diameter Hook

Hook latch shall be provided for both hooks Wind Clamp

Wind clamp shall be provided in all four corners

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Roof Covering Single Roof cover shall be provided for trolley and long travel mechanisms

Electrical Elements

Operational Controls The offered Crane shall be provided with the following controls: a) Cabin Control [Master Control] b) Radio Remote Control [Push Button Type]

Control Voltage 110V/220 V AC

Type of Brakes a) Hoist: DC Brake b) Cross Travel: Thruster Brake c) Long Travel: Thruster Brake d) Parking Brake: DC Brake

Protection: All Panels, Limit-Switches and Motors shall have IP 54 protection. (Outdoor Service)

Electric Motors All Electric Motors shall be as per IIEC/ANSI/IEEE and also suitable for 500 starts per hour and 40 % CDF.

Electric Contactors All Panels shall have only SIEMENS (make) Contactors and shall be suitable for AC3 Duty Class.

Contactors Rating The rating of all Contactors shall be at least 50% higher than the respective electric motor full load current, at the specified duty

cycle. Resistance Stainless steel punched grid resistance continuous rating

Long Travel Motion A dual Drive Mechanism shall be provided for Long Travel Motion.

Illumination Four numbers of 500 Watts Halogen Lamps shall be provided under the Bridge, All Electric Panels shall be provided with

suitable long-lifeillumination for visibility and trouble shooting

Controller Steps: A 5-Step Controller has to be provided for a. Main Hoist

b. Long Travel

c. Cross Travel

Load Cell for Main Hoist Load weighing system with load cell to be fixed/provided at the equalizer pulley

The display shall be of 100 mm size-Jumbo Crab Wiring The CRAB shall be fully wired with junction box

Hoist Limit Each hoist shall be provided with both rotary and counter weight limits

Operator Cabin Electric Light, Fan, Exhaust-Fan, Warning Bell and Emergency Stop Push Button shall be provided in the operator cabin

Sources Only US or Western European Sources materials are acceptable

Hoist Hooks Vendor to specify for the offered crane

Wire Rope Vendor to specify for the offered crane

Electric Motors GEC/siemens

11

DC Brake Unit Vendor to specify for the offered crane

Radio Control Vendor to specify for the offered crane

Thrust Brake Unit Vendor to specify for the offered crane

Limit Switch (Gravity

Type) Siemens

Contactors (make) Siemens

Overload Relay for

protection (make) Siemens

HRC Fuses (make) Siemens

Rotary Limit Switch (make) Siemens

Switch Fuse Unit (make) Siemens

MCCB (make) Siemens, Schneider Electric

MCB (make) Siemens, Schneider Electric

Pneumatic Time Delay

(make) Vendor to specify for the offered crane

Push Button (make) Siemens

Connectors (make) Siemens

Couplings Vendor to specify for the offered crane

Bearings Vendor to specify for the offered crane

Power & Control Cables

IEC /ANSI/IEEE/BS Certified

Load Cell Vendor to specify for the offered crane

Resistance Box Vendor to specify for the offered crane

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7. Runways and Supporting Structures

7.1 The crane shall be supported on its own steel structure independent of the building structure, with foundations independent of the building floor and foundations. Crane vendor shall design

fabricate and supply the supporting steel structure in accordance with standards and

specifications, with safety factor of at least 50%, or such other greater factor required by

standards, above maximum loading in any component or structural element resulting from

lifting of 100 ton and moving it at standard speed in the least favorable location or

circumstance.

7.2 Construction of Runways and rails shall be in accordance with the ASME B 30.2 and shall conform to AISC Manual of Steal Construction. The crane runways and supporting structures

shall be designed to withstand the loads, forces and impacts imposed by the crane during

operations.

7.3 The Runway columns shall be securely anchored to the foundations. Foundation design calculations shall be provided for review and evaluation by BREB.

7.4 The structure shall be free from the detrimental vibrations under normal operating conditions.

7.5 Rails shall be level, straight, joined, and spaced to the crane span within the specified tolerance limits in CMAA specification No. 70. Where curves are required, special design shall be

necessary.

7.6 Runway stops shall be provided to the limits of travel of the bridge.

7.7 Stops shall be designed to withstand the forces applied to the bumpers.

8. Welded Construction

8.1 All welding procedures and welding operator's qualifications to be used on load-sustaining members shall be in accordance with ANSI/AWSD11, except as modified by

ANSI/AWSD14.1.

9. Girders

9.1 All crane shall conform to the design parameters as specified, and applicable, in CMAA specification No. 70 or SIE Technical Report No.6.

10. Bridge-Bumpers

10.1 A power operated bridge shall be provided with the bumpers or other automatic means providing equivalent effect.

10.2 Bridge bumper shall have minimum characteristics as specified in ASME B30-2, as follows:

a) Energy-absorbing (or energy-dissipating) capacity to stop the bridge when traveling with

power off in either direction at a speed of at least 40% of rated load speed.

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b) The capability of stopping the bridge (but not the load block or lifted load unless they are

guided vertically) at a rate of deceleration not to exceed an average of 3 ft/sec2 (0.9 m/s2)

when traveling with power off in either direction at 20% of rated load speed and be

designed and installed with a means of retaining the bumper in case of broken or loosened

mounting connections.

c) Multiple power-operated bridges operating on the same runway shall have contact bumpers

that meet the requirements of ASME B30-2.

10.3 Consideration should be given to providing bumpers with greater capacity for energy absorption (or energy dissipation) than that specified in ASME B30-2and providing bridge end

stops with corresponding increased strength, when anyone of the following conditions are

present:

a) The crane has a maximum bridge speed of 320 ft/min (100 m/min) or greater. b) The crane is a remote-operated crane. c) The crane is a pulpit-operated crane. d) The location of the runway end stops is obscured or uncertain. e) As an example, the bumper force applied at 100% of rated load speed is 625% greater than

the bumper force applied at 40% of rated load speed.

11. Trolley-Bumpers

11.1 A power-operated trolley shall be provided with bumpers or other automatic means providing equivalent effect.

11.2 Trolley bumpers shall have the following minimum characteristics:

a) energy-absorbing (or energy-dissipating) capacity to stop the trolley when traveling with

power off in either direction at a speed of at least 50% of rated load speed.

b) the capability of stopping the trolley (but not the load block or lifted load unless they are guided vertically) at a rate of deceleration not to exceed an average of 4.7 ft/sec

2 (1.4 m/s

2)

when traveling with power off in either direction at one-third of rated load speed.

c) be designed and installed with a means of retaining the bumper in case of broken or loosened mounting connections.

11.3 Consideration should be given to providing bumpers with greater capacity for energy absorption (or energy dissipation) than that specified in and providing bridge end stops with

corresponding increased strength when anyone of the following conditions are present:

a) The trolley has a maximum speed of 150 ft/min (46 m/min) or greater. b) The trolley is on a remote-operated crane. c) The trolley is on a pulpit-operated crane.

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12. Bridge Rail Sweeps

12.1 Bridge truck rail sweeps shall be provided in front of the leading wheels on both ends of the bridge end truck.

12.2 The rail sweep shall clear the rail of objects on the runway which, if they came into contact between the wheel and rail, could cause damage to the wheel or derail the wheel.

a) Clearance between the top surface of the rail head and the bottom of the sweep should not

exceed 3/16in.(5 mm).

b) On overhead crane end trucks, the sweep shall extend below the top surface of the rail head, for a distance not less than 50% of the thickness of the rail head, on both sides of the

rail head.

c) On gantry crane end trucks, when the railhead is located above the pavement or ground level, the sweep shall extend below the top surface of the rail head, for a distance not less

than 50% of the thickness of the rail head, on both sides of the rail head.

d) Clearance between the vertical inside surfaces of the sweep should be equal to the wheel tread width plus 3/8 in. (10 mm), and clearance should be evenly spaced on each side of the

wheel tread width.

13. Trolley Rail Sweeps

13.1 Trolley truck rail sweeps should be provided in front of the leading wheels on both ends of the trolley end truck.

13.2 The rails sweep shall be clear of objects on the bridge, which could come into contact between the wheel and rail, and cause damage to the wheel or derail the wheel.

a) Clearance between the top surface of the rail head and the bottom of the sweep should not

exceed 3/16 in. (5 mm)

b) The sweep shall extend below the top surface of the rail head, for a distance not less than

50% of the thickness of the rail head, on both sides of the rail head.

c) Clearance between the side surface of the rail head and the side of the sweep which extends

below the top surface of the rail head should be equal to crane float plus 3/16 in. (5 mm).

14. Guard Moving Parts

14.1 Exposed moving parts, such as gears, set screws, projecting keys, and drive chain and sprockets, which constitute a hazard under normal operating conditions, shall be guarded.

14.2 Each guard shall be capable of supporting, without permanent deformation, the weight of a 200 Ibs (90 kg) person, unless the guard is located where it is not possible that a person will step on

it-ASME B15.1

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15. Hoist Handling Brakes

15.1 Each hoisting unit of the crane shall be equipped with at least one holding brake. The holding brake shall be applied to the motor shaft or a gear reducer shaft and shall have a torque rating

not less than the percentage of rated load hoisting torque at the point where the brake is applied

as follows:

a) 125% of rated load hoisting torque when used with a control braking means other than mechanical

b) 100% of rated load hoisting torque when used with a mechanical control braking means .. c) 100% of rated load hoisting torque for each brake if two holding brakes are provided

15.2 Each hoist holding brake shall have thermal capacity for the frequency of operation required by the service.

15.3 Hoist holding brakes shall be applied automatically, when power to the brake is removed.

15.4 Hoist holding brakes shall be provided with means to adjust for lining wear.

16. Hoist Control Braking Means

16.1 Each hoisting unit of the crane shall be equipped with a control braking means that will control the load during lowering to a maximum speed of 120% of rated lowering speed for the load

being handled.

16.2 Hoist control braking means can be electrical, such as regenerative, dynamic, counter-torque, or eddy-current; mechanical; hydraulic; or a worm-geared hoist, where the angle of the worm is

such as to prevent the load from accelerating in the lowering direction.

16.3 Hoist control braking means shall have thermal capacity for the frequency of operation required by the service.

17. Trolley Brakes and Braking Means

17.1 A power-driven bridge shall be equipped with either a braking means or have bridge drive frictional characteristics that will provide stopping and holding functions, under conditions

where the rails are dry as follows:

a) have torque capability to stop bridge travel within a distance in feet (meters) equal to 10%

of rated load speed in ft/min. (m/min.) when traveling with rated load.

b) have torque capability to impede horizontal motion of the bridge against a horizontal force equal to 1% of the combined weight of the bridge, trolley, hoist, and rated load when the

bridge is in parked condition.

17.2 A power-driven, cab-operated crane shall be equipped with a bridge brake that will provide the stopping and holding functions described in ASME B30-2.

17.3 Each bridge brake shall have thermal capacity for the frequency of operation required by the service.

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18. Trolley and Bridge Brake Provisions

18.1 General provisions as outlined below apply to, as merited, trolley and bridge brakes.

a) Brakes may be applied by mechanical, electrical, pneumatic, hydraulic, or gravitational

means.

b) Brakes shall be provided with means of adjustment to compensate for lining wear. c) Brake pedals, latches, and levers should allow release without the exertion of greater force

than was used in applying the brake.

d) Foot-operated brakes shall require an applied force of not more than 70 lbs. (310 N) to develop rated brake torque.

e) Foot-operated brake pedals shall be so constructed that the operator's foot will not readily slip off the pedal.

f) Foot-operated brake pedals should be so located that they are convenient to the operator at the controls.

g) Foot-operated brakes shall be equipped with a means for positive release, when force is released from the pedal.

h) When provided, a parking brake shall:

i. be applied automatically or manually.

ii. impede horizontal motion of the trolley or bridge in accordance with the requirements of ASME B30-2.

iii. not prohibit the use of a drift point in the control circuit.

i) When provided, a service-brake shall:

i. be applied manually by the operator during normal operation ii. stop trolley or bridge travel in accordance with the requirements ASME B30-2

j) When provided, a drag brake shall provide a continuous retarding torque, without external control.

k) When provided an emergency brake shall:

i. be applied when initiated by the operator, or automatically upon loss of power.

ii. Stop trolley or bridge traveling accordance with the requirements of ASME B30-2.

iii. impede horizontal motion of the trolley or bridge in accordance with the requirements of ASME B30-2.

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19. Electrical Equipment

19.1 Wiring and equipment shall comply with Article 610 of ANSI/NFPA No. 70, National Electrical Code.

19.2 The control circuit voltage shall not exceed 600V for AC or DC.

19.3 The control circuit voltage in pendant push buttons shall not exceed 150V for AC or 300V for DC.

19.4 Where multiple conductor cable is used with a suspended push-button station, the station shall be supported so that the electrical conductors are protected from strain.

19.5 Pendant control stations shall be constructed to prevent electrical shock. The push-button enclosure shall be at ground potential and marked for identification of functions.

19.6 Electrical equipment shall be located or enclosed so that, under normal operating conditions, energized parts will not be exposed to inadvertent contact.

19.7 Energized parts of electrical equipment shall be protected from direct exposure to grease, oil, and moisture, and they should be protected from dirt.

19.8 If guards are provided for energized parts, the guards shall be constructed or located so that they cannot be deformed, under normal operating conditions, to make inadvertent contact with

energized parts.

19.9 Cables, Controllers, Switches, Contactors, Relays and Protection shall comply the relevant ANSI/IEEE/IEC standards.

20. Runway Conductors

20.1 Conductors of the open type, mounted on the crane runway beams or overhead, shall be so located or guarded that persons cannot inadvertently come into contact with the energized

conductors under normal

21. Sheaves

21.1 Sheave grooves shall be free from surface defects, which could cause rope damage. The cross-sectional radius at the bottom of the groove should be such as to form a close-fitting saddle for

the size of rope used. The sides of the groove shall be tapered outward and rounded at the rim

to facilitate entrance of the rope into the groove. Flange rims shall run true about the axis of

rotation.

21.2 Sheaves carrying ropes, which can be momentarily unloaded, shall be provided with close-fitting guards, or other devices, to guide the rope back into the groove, when the load is

reapplied.

21.3 The sheaves in the bottom block shall be equipped with close-fitting guards that will minimize the possibility of ropes becoming fouled when the block is lying on the ground with the ropes

loose.

21.4 All running sheaves shall be equipped with means for lubrication. Permanently lubricated, sealed, or shielded bearings shall be acceptable.

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22. Drums

22.1 Rope drums shall be grooved, except when the crane is provided by the manufacturer for a special application. This requirement does not preclude the use of multiple layer spooling. The

grooves shall be free from surface defects that could cause rope damage. The cross-sectional

radius at the bottom of the groove should be such as to form a close-fitting saddle for the size of

rope used.

23. Chain

23.1 The hoisting chain shall be of a recommended construction for crane service. The total load (rated load plus weight of load block) divided by the number of parts of line shall not exceed

20% of the minimum breaking strength of the chain.

24. Hooks

24.1 Hooks shall meet the manufacturer's recommendations and shall not be overloaded. If hooks are of the swiveling type, they should rotate freely. Latch-equipped hooks shall be used unless

the application makes the use of the latch impractical or unnecessary. When required, a latch or

mousing shall be provided to bridge the throat opening of the hook for the purpose of retaining

slings, chains, or other similar parts, under slack conditions as per ASME B30.10.

25. Guards for Hoisting Chain

25.1 If it is possible for hoisting ropes to foul or chafe on adjacent parts of the crane under normal operating conditions, guards shall be installed to minimize damage to the chain.

25.2 A guard shall be provided to prevent contact between bridge or runway conductors and hoisting chain if, under normal operating conditions, they can come into contact.

26. Paint

26.1 The Crane parts are painted as follows:

a) One coat of premier with 25 microns of DFT (dry film thickness) and 48 hours of compulsory

curing after painting.

b) Two coating of long lasting Enamel paint color-Yellow, each with DFT of 25 microns and intermittent curing of minimum 16 hours.

c) Lifting Hook shall also be painted Yellow. d) Girders, Trolleys, Columns are to be shot blasted or chemically treated for surface cleaning,

after completion of all operations but prior to painting.

e) All nut, bolts and fixing shall be suitable protected against corrosion.

27. Warning Devices

27.1 All warning devices shall be provided appropriately, where necessary. The warning devices shall comply the ASME B30-2. Type of devices shall be as follows:

a) Manually operated gong

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b) Power-operated bell, siren or horn c) Rotating beacon d) Strobe light

28. Warnings

28.1 Crane shall have labels in compliance with ANSI Z535.4 and shall include cautionary language (in English and Bangla) against:

a) Lifting more than rated load b) Operating hoist when load is not centered under hoist c) Operating hoist with twisted, kinked, or damaged chain d) Operating damaged or malfunctioning crane e) Lifting people f) Lifting loads over people g) Operating a chain hoist that is not properly seated in its grove h) Operating manual motions with other than manual power i) Removing or obscuring safety label j) Disconnect power and lockout disconnecting means before removing cover or servicing

this equipment

k) Do not operate without cover in place

29. Warranty

29.1 The manufacturer's standard warranty shall cover the performance of the total Crane and/or the Components / Sub-Assemblies / Bought-Out-Items and shall be guaranteed for a minimum

period of two (2) years from the date of performance acceptance at BREB material acceptance

Lab.

30. Installation, Testing and Commissioning

30.1 Installation, Testing and Commissioning shall be the responsibility of the Vendor.

30.2 Commissioning of the Crane and performance prove-out for the Crane‟s capacity and smooth functioning of the Crane (at BREB Works) shall be the responsibility of the supplier.

31. Operating and Maintenance Manual

31.1 The Crane shall be provided with detailed operating and maintenance manual and user‟s guide containing technical specifications, safety warnings, important technical data and circuit

diagrams in English language.

a) Installation b) Operation c) Inspection d) Testing e) Lubrication (where necessary accessible means and directions for lubrication shall be

provided)

f) Maintenance g) Parts h) Wiring diagram (may be supplied separately)

20

31.2 Personnel responsible for the supervision, installation, operation, inspection, or maintenance of the crane shall be familiar with the applicable contents of the manual furnished with the crane.

a) Crane GA drawings b) Crab assembly drawings c) Total crane wiring scheme d) Detailed wiring drawings of sub-systems/panels e) Drive's logic circuits drawings f) Wheel assembly drawings g) Gear Box assembly drawings h) Couplings Drawings and details i) Specifications/Ratings of all bought-out items j) Warranty Cards for all Bought-out items k) Trouble shooting charts for main and sub-system

32. Training and Safe Use

32.1 The supplier shall conduct training sessions to BREB staff on the use of the Crane and controls for operation, sub-assemblies and components etc. shall be given training on safe operation of

the machines, operation and maintenance (O&M) and use of controls, emergency, safety etc.

including other functions and features.

32.2 The training shall comprise of a balanced combination of classroom training and hands-on experience and shall cover all aspects of equipment operation.

33. Tests

33.1 The manufacturer shall provide at the time of tender, certificates attesting to the fact that conformance type tests have been performed successfully on the machines of the Crane.

33.2 Acceptance Tests: Acceptance tests will be conducted before shipment. Test protocol shall be provided by the supplier and approved by the client. If unit fails the acceptance tests the offered

Crane shall be rejected. The acceptance tests shall be as follows:

a) Verification of Test Certificates for Raw Materials used for Girders, End-Carriages, Trolleys,

Gear Box Casings, etc.

b) Verification of X-Ray Report of Butt Joints coming in the Girders and Random Testing on the Welds, by physical examination

c) Box Girder setting before closing of the Bottom Flanges for inspecting the quality of welding and presence of waviness.

d) Trolley Frame Fabrication before setting the Mechanisms e) End-Carriage Fabrication f) Inspection of Bridges and End-Carriages with Wheel Assembly and Alignment checking. g) Verification of Span & Diagonal Dimensions, Checking of Wheel Alignment, Mechanical

Assemblies and Total Alignment.

h) Free running of the all the Mechanisms i) Measurement of "CAMBER" in the Bridges j) Full / Rated Load Test and Deflection Test. Deflection and Permanent Set measurements. k) 25% over-load lifting ability

21

34. Markings and Name Plate

34.1 Rated load on the crane shall be marked on each side of the crane and shall be legible from ground or floor.

34.2 The rated load of the Hoist shall be marked on the hoist or trolley or its load block and shall be legible from ground or floor.

34.3 The following information shall be given on the name plate:

a) Manufacturer‟s name and address b) Manufacturer‟s model, serial number, year of manufacture, and identifying number c) Maximum loading/unloading capacity d) Factor of safety e) Civil, Electrical and Mechanical design parameters f) Manufacturer logo g) Weight and size h) Power, AC voltage and frequency i) Essential Circuit diagram j) Protection (IP) class k) Applicable standards l) All other important data as necessary

35. Packaging and Shipping

35.1 Export packaging and shipping shall be adequate for sea transport and handling up to delivery site in Bangladesh.

35.2 The material shall be sealed in plastic bags or other suitable moisture proof materials and packed in sturdy arrangement in completely assembled condition. Each crate shall contain test equipment and installation instructions.

35.3 The material shall be skidded, crated, boxed or otherwise suitably protected against damage or loss during shipment and to facilitate field hand storage. All openings shall be effectively

sealed with temporary closures to prevent entry of dust, dirt, moisture and other foreign matter.

35.4 The cover of the main crate shall carry the following information written in English:

a) Number of test equipment contained therein b) Manufacturer‟s catalog number c) Description of the material d) Manufacturer‟s name e) Purchase order number f) Gross weight in kg g) Bar code

35.5 Additional handling and shipping instructions shall be obtained from BREB, as applicable.

22

36. Technical Data, Drawings and Submittal

36.1 The supplier/manufacturer shall provide hard and soft copies of the technical data, catalogues, documentation and information with the bid submittal of Crane, as follows:

a) Engineering design (civil, electrical and mechanical) calculations of the bridge crane. b) General Arrangement (GA) drawings of the crane. c) GA drawings of crab with trolley. d) Drawings of bridge, End-Carriage and their connections. e) GA of individual mechanism. f) Sub-assembly drawings of Wheels, Hook Blocks, Gear Boxes, Hoist Drums. g) Engineering calculations for selection of electric -motors, gear reducers, brakes, couplings

etc. h) Calculations for Bridge Girder, Crab End-Carriage and their connections. i) Wiring drawings of electric circuits. j) Calculations for power and control cables design and ratings. k) Total weight of crane including all Electrical equipment. l) Total weight of Trolley including all electrical equipment. m) Weight of each Bridge assembled and ready for erection with or without Mechanical and

Electrical equipment. n) Weight of each End-Carriage assembled and ready for erection. o) Total Weight of Structural, Mechanical and Electrical Equipment and indicated separately

indicated. p) Complete list of BOQs of items in the package. q) Certified calibration test reports. r) Packaging details. s) Terms of manufacturer‟s warranty. t) Manufacturer‟s certificate attesting to 10 years of experience in manufacturing. u) Statement of country of origin. v) Copy of ISO:900-2015 Certification for the manufacturing plant. w) Copies of test certificates evidencing completion of qualification tests. x) List of clients in last five years with their respective addresses, which were supplied overhead

bridge cranes of similar rating. y) Confirmation in writing that the equipment and materials will be supported technically and in

parts availability for a minimum of 10 years from the date installed.

z) Clause by clause conformance with this specification and a list of explanations for any deviations from or exceptions to these specifications.

36.2 If no exceptions are taken to this specification and no list of deviations is submitted, it shall be deemed that in every respect the offered test equipment conforms to this specification.

Purchaser‟s interpretation of this specification shall be accepted.

36.3 In case of conflict or ambiguity, the vendor may propose a value with corresponding reference standards without effecting the requirements of this specification.

36.4 Vendor shall visit the site to take measurements, note clearances and discuss BREB requirements, before their technical bid submittal for evaluation.

23

37. Ground Floor Plan (For Concept Only) Vendor shall visit site and take measurements, clearances and information before design

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Guaranteed Technical Particulars-Overhead Bridge Crane

a) To be filled up by the bidder with appropriate data, otherwise the Bid will be rejected. b) Failure to provide all of the information requested may lead to the rejection of the bid. c) Bidder to list offered capability. d) Statement of “Comply” only is not acceptable.

Sr No Description REB Requirement Bidder's Guaranteed

Value

1 Manufacturer /Supplier name/title

Only North American or Western

Europe sources are acceptable

2 Manufacturer/Supplier address and contacts

Required

3 Reference Standards As specified in clause 2 *Conformance to national standards only, such as Chinese, Indian, or Russian is not

acceptable.

4 Experience and Quality Control

As specified in clause 3

5 Service Conditions As specified in clause 4

6 Capacity 100 ton lifting capacity

7 Hoist limit 100 ton (keep factor of safety in view)

8 Span Wheel center to wheel center

9 Long Travel 30 meters (refer to floor plan)

10 Cross Travel 15 meters (refer to floor plan) with 10m centered on the lab railroad and 5m

laydown area to the left (facing the

doors from inside) of the railroad.

11 Height of lifting 10/11 meters from ground level with dual/variable speed (effective height

shall be 10m)

12 Operating and Working Speed maximum (m/s)

Vendor to specify for the offered crane

for: a) Hoist b) Cross Travel c) Long Travel

13 Duty Cycle (related to Drive Motor & Mechanisms)

Vendor to specify for the offered crane

for: a) Hoist b) Cross Travel c) Long Travel

25

14 Motor Ratings Vendor to specify for the offered system a) Hoist b) Cross Travel c) Long Travel

15 Electric Drive Motor Ratings & Frame size

16 Gear Box Vendor to specify for the offered system Gear Box Size for: a) Hoist b) Cross Travel c) Long Travel

17 Acceleration mm/s Vendor to specify for the offered crane for: a) Hoist b) Cross Travel c) Long Travel

18 Hoist Rope Size and number of falls of rope

Vendor to specify for the offered crane

System for:

19 Control Control by wired master pendant with push button hanging in air

20 Type of Control Wired master control

21 Input Voltage 240/415 ± 5% Volts, 50 Hz, 3 Phase - AC

22 Control Voltage 110 V AC or as proposed by the vendor

23 Duty Class Class -3, Indoor Service

24 Design Standards ASME/IEC /ANSI/IEEE/BS

25 Runway Rail Size for Cross Travel

Vendor to specify for the offered crane

(kN/m)

26 Runway Rail Size for Long Travel

Vendor to specify for the offered crane

(kN/m)

27 Wheel Size for Cross Travel Vendor to specify for the offered crane (dia. mm)

28 Wheel Size for Long Travel Vendor to specify for the offered crane (dia. mm)

29 Brake Drum Size for Hoist Vendor to specify for the offered crane (dia. mm)

31 Brake Drum Size for Cross Travel

Vendor to specify for the offered crane

(dia. mm)

32 Brake Drum Size for Long Travel

Vendor to specify for the offered crane

(dia. mm)

33 Brake Drum Size for Parking Brake

Vendor to specify for the offered crane

(dia. mm)

26

34 Crane Type Double Girder, Top running *Rail size shall be designed by the

supplier and vendor to provide

calculations for review

35 Bridge Travel Motorized, geared, dual speed, had chain drop *supplier to design based on site

requirements and vendor to provide

calculations for review Required *sizes shall be as per design

requirements and vendor to provide

calculations for review

36 Bridge Beam and Columns

37 Trolley Type Motorized, geared with dual/variable speed

38 Control System Conventional master control for all motions

39 Crane operations Wired master control

40 Operator No operator cabin is needed, operator to handle through wired master control

41 Structural Fabrication Crane Structural Constructional Details

42 Bridge Leg Box type construction

43 Raw material Only steel plates, tested and certified quality

44 Welded Joints To be followed for Bridge/leg Fabrication

45 Number of Joints To be followed for Bridge/leg Fabrication

46 Number of Joints For span up to 25 meters - two joints, for span 25 meters to 50 meters - three

joints

47 Welding Electrodes Electrode only should be used: · For all Horizontal Welding: E 7018 ·For all Vertical Welding: E 7048.

48 Welded Joint Testing All Butt-Welded Joints (both compression / tension and flanges / web

joints) shall be subjected to 100% X-

Ray Testing and X-Ray Films to be

produced for BREB evaluation and

form part of technical submission.

49 Splice Joint No splice joint is allowed in girder fabrication

50 Leg connection Leg to bridge connection shall be designed for double shear.

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51 Platform on Girders The Platforms provided on both the Girders shall be fixed through bolted

joints using fit bolt only.

52 Wheel Assembly The Wheel Assembly coming for Cross Travel (CT) & Long Travel (LT) shall

be of live axle system with L-Type

Bearings.

53 Heat Treatment The Trolleys (where applicable) shall be Stress Relieved by thermal heat-

treatment process after welding and

non-destructive testing (NDT)

examinations. All welding shall be

tested by NDT means [MPI, LPI & RT]

after Stress Relieving operation.

54 Machining Operation All mechanical mating surfaces and wheel seating areas are to be machined

to the required finish and protected

55 Surface Cleaning Both the Girders and the Trolleys are to be shot blasted or chemically treated

for surface cleaning, after completion

of all operations but prior to painting.

56 Painting The crane parts are to be painted as follows: One coat of Primer with 25 microns of

DFT (Dry Film Thickness) and 48

hours of compulsory curing after

painting. Two coats of Enamel Paint

(Color –Yellow) each with a DFT of 25

microns and intermittent curing of

minimum 16 hours.

57 Gears Gears in all the Stages shall be helical in design and to be of machined &

ground and hardened.

58 Gear Box Casing Shall be of fabricated type and stress relived by thermal heat-treatment

process, prior to machining

59 Type of Coupling Only geared coupling to be used: a) between Electric Motor and Gear

Box b) between Gear Box and Rope Drum c) between Gear Box and Trolley

Wheels

28

60 Rope Drum Shall be of fabricated type and stress relieved. The circumferential weld

joints shall be tested by 100 % X-Ray

for quality assurance.

61 Wheels The Wheels shall be of Die-Forged and Wheel Tread hardened to 300/350

BHN (Brinell hardness number).

Wheels shall be fitted with L-Type

Bearings

62 Mechanical Joints Fit Bolts as per IS 3640-1982 for all joints coming in main members and

platform with reamed holes

63 Pulley Dimension Rope Pulley diameter shall be 23 times that of Rope diameter

64 Hook Hook latch shall be provided for both hooks

65 Wind Clamp Wind clamp shall be provided in all four corners

66 Roof Covering Single Roof cover shall be provided for trolley and long travel mechanisms

67 Electrical Elements

68 Operational Controls The Crane shall be provided with the Wired master control to be used by

operator manually

69 Control Voltage 110V/220 V AC

70 Type of Brakes a) Hoist: DC Brake b) Cross Travel: Thruster Brake c) Long Travel: Thruster Brake d) Parking Brake: DC Brake

71 Protection: All Panels, Limit-Switches and Motors shall have IP 54 protection. (Outdoor

Service)

72 Electric Motors All Electric Motors shall be as per IIEC/ANSI/IEEE and also suitable for

500 starts per hour and 40 % CDF.

73 Electric Contactors All Panels shall have only SIEMENS Contactors and shall be suitable for

AC3 Duty Class.

74 Contactors Rating The rating of all Contactors shall be at least 50% higher than the respective

electric motor full load current, at the

specified duty cycle.

75 Resistance Stainless steel punched grid resistance continuous rating

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76 Long Travel Motion A dual Drive Mechanism shall be provided for Long Travel Motion.

77 Illumination Four numbers of 500 Watts Halogen Lamps shall be provided under the

Bridge, All Electric Panels shall be

provided with suitable illumination for

visibility and trouble shooting

78 Controller Steps: A 5-Step Controller has to be provided for a. Main Hoist b. Long Travel c. Cross Travel

79 Load Cell for Main Hoist Load weighing system with load cell to be fixed/provided at the equalizer

pulley

The display shall be of 100 mm size-

Jumbo

80 Crab Wiring The CRAB shall be fully wired with junction box

81 Hoist Limit Each hoist shall be provided with both rotary and counter weight limits

82 Cabin Electric Light, Fan, Exhaust-Fan, Warning Bell and Emergency Stop

Push Button shall be provided in the

Operator Cabin

83 Sources Only US or Western European Sources materials are acceptable

84 Hoist Hooks Vendor to specify for the offered crane

85 Wire Rope Vendor to specify for the offered crane

86 Electric Motors GEC/Siemens (make)

87 DC Brake Unit Vendor to specify for the offered crane

88 Radio Control Vendor to specify for the offered crane

89 Thrust Brake Unit Vendor to specify for the offered crane

90 Limit Switch (Gravity Type) Siemens

91 Contactors (make) Siemens

92 Overload Relay for protection (make)

Siemens

93 HRC Fuses (make) Siemens

94 Rotary Limit Switch (make) Siemens

95 Switch Fuse Unit Vendor to specify for the offered crane

96 MCCB (make) Siemens, Schneider Electric

97 MCB (make) Siemens, Schneider Electric

30

98 Pneumatic Time Delay Vendor to specify for the offered crane

99 Push Button (make) Siemens

100 Connectors (make) Siemens

101 Couplings (make) Vendor to specify for the offered crane

102 Bearings Vendor to specify for the offered crane

103 Power & Control Cables IEC /ANSI/IEEE/BS Certified

104 Load Cell Vendor to specify for the offered crane

105 Resistance Box Vendor to specify for the offered crane

106 Name & signature of authorized representative

with date

107 Official Seal/Stamp

Note:

a) Vendor shall provide clause by clause conformance of this technical specification with the

submittal duly signed and stamped

b) List of deviations (If any)

31

Specification# 35

BANGLADESH RURAL ELECTRIFICATION BOARD (BREB)

Technical Specification

Lifts/Elevators (for Passenger and Goods)

1. Scope

1.1 This Guide Specification covers General Technical requirements for the design, supply, installation, testing, commissioning and handing over on turn key basis (TKB) of two (2)

microprocessor-based, Elevators/Lifts complete in all respects (including brake release tools)

for a three (3) story building in phase -I, which will be extended to eight (8) stories later in

phase-II, for Bangladesh Rural Electrification Board (BREB) material Acceptance Testing

Laboratory at Palli Biddyut Area, Savar Dhaka, Bangladesh, as follows:

a) One (01ea.) Passenger Elevator/Lift - capacity for 12 passengers - 1000kG b) One (01ea.) Goods Elevator/Lift - capacity 3 ton

1.2 Scope of work shall include Annual Maintenance Contract (AMC) for three (3) years and one (1) year of Defect Liability Period (DLP), after handing over to Bangladesh Rural

Electrification Board (BREB), inclusive of periodic servicing, prompt attention to client

(BREB) complaint, prompt rectification of all malfunctions and equipment failures,

replacement of defective equipment / parts, replacement of light fittings/fixtures, lubrication -

including lubricants, maintaining correct alignment and levelling of cars and ensuring smooth

running, starts and stops etc. all complete to BREB‟s satisfaction shall be done.

1.3 Any departure from the provisions of this specification shall be disclosed at the time of bidding under the title “deviation from specifications”.

1.4 This specification shall be read in conjunction with the terms and conditions of the Contract.

2. Reference Standards

2.1 Elevator/Lift shall conform to the latest editions of the standards applicable to their design, construction, operation and application including but not limited to those listed below, and their

normative references:

ADAAG Americans with Disabilities Act Accessibility Guidelines.

ANSI/NFPA 70 National Electrical Code.

ANSI/NFPA 80 Fire Doors and Windows.

ASME/ANSI A17.1 Safety Code for Elevators and Escalators glass insulators-suspension type

ANSI/UL 10B Fire Tests of Door Assemblies

ISO 630 Standards for structural steels

ASME Safety Codes and Standards, ADA standards and ASME Code A 17.1 & A 18.1

ISO 22201:2017 (Amended to date) for Lifts and Elevators

BS Building and safety codes

IEC/ANSI Standards

32

The Contractor shall follow Bangladesh and International Statutory Requirements as well as best trade

practices in the manufacture & installation of Elevators/Lifts. The Contractor shall arrange to obtain

the statutory approval of the Inspectorate of Lifts as may be required for commissioning of the lifts

and handover for operation after satisfactory tests. The equipment and installation covered by these

specifications shall conform to codes of practice in force and highest standards of safety,

workmanship and materials. This work shall be done in accordance with the provisions of the "Local

Lifts Authority Rules" and shall also conform to requirements of local Municipal by laws, and

subsequent provisions, as also local Act in force for safety and operation.

3. Experience and Quality Control

3.1 The Electric Elevators /Lifts shall be manufactured at a plant that has fabricated units of similar design and characteristics for a period not less than ten years and that holds ISO: 9001

Certification for the quality management.

4. Service Conditions

4.1 The Electric Elevators/ Lifts shall be suitable for the laboratory building under the local service conditions in Bangladesh, which are as follows:

k) Altitude above mean sea level (MSL): less than 1,000 meters l) Maximum summer peak ambient temperature: +45°C m) Minimum outdoor winter temperature: 3°C n) Average daily temperature: +35°C o) Maximum yearly average temperature: +30°C p) Relative Humidity: 50% - 100% q) Yearly average Humidity: 80% r) Pollution level: Moderate s) Storage temperature: -10°C - +70°C t) Operating temperature: -10°C - +45°C

5. Design and Performance Specifications

5.1 The Electric Elevators /Lifts shall meet or exceed the technical and performance requirements of this specification in all respects and shall have minimum technical features as given below:

a) Passenger Elevator capacity: 12 Passengers /Loading Capacity (approximately):

1000kg (supplier to keep factor of safety in load design)

b) Goods Elevator capacity: 3.0 ton (supplier to keep factor of safety in load design) c) Number of stops: 3 stops d) Design: Supplier to design both the Elevators for eight stories but this installation

will be for a three (3) story building

e) Type: Microprocessor/PLC based logic controlled Electric Elevators f) Inside car height: Supplier to design after field verify

g) Door Opening/Closing Time:
1.80 seconds for Center Opening / 2.5 second closing 4.0 seconds for Side Slide Openings / 4.5 seconds close

h) The following parameters shall be achieved in the installation:

Levelling Accuracy: + 3 mm for 1.5 m/s speed and + 4 mm for 0.75 m/s speed; under any loading condition or direction of travel

Jerk level: 0.9 – 1.5 m/s3

33

Noise level in car: 50 dB

Noise level in machine room: 60 dB

Acceleration rate: 0.6 – 1.0 m/s2 (adjustable)

Max. car vibration: 20 milli gals

Hall Signal Frequency: 1500Hz max. (300-3000Hz verbal annunciator)

Hall Signal level: 10dB above ambient, 80dB max.

Vendor shall specify above parameters for the offered Elevators and associated equipment in the

technical data sheet.

5.2 Car Operating Features: The car shall answer calls in the order in which floors are reached, without respect to the time sequence in which the calls were registered. Only car calls and up

hall calls shall be answered when the car is traveling in the up direction, and only car calls and

down hall calls hall be answered when the car is traveling in the down direction, except in the

case of the highest or lowest calls, which are answered as soon as they are reached, regardless

of the direction of travel of the car. When the car reaches the last registered call for the

established direction, it shall reverse and proceed to answer calls in the opposite direction if

they are; (bidder shall specify this parameter for the offered machine in the technical data

sheet).

5.3 Anti-Nuisance: If an excessive number of car calls (quantity to be adjustable) are registered and the passenger load as determined by the weight sensors is less than a predetermined weight,

all car calls shall be canceled requiring re-registration of calls.

5.4 Call Parking Recognition: Field Verify/ Car doors shall only open in response to car and hall demand. Cars being parked without call demand will be parked without door operation.

5.5 Direction Preference: At the final stop (highest or lowest call), direction preference shall be given to the hall passenger whereby, if a passenger registers a car call for the original direction

of travel before the doors close, it shall not be possible for a waiting passenger at another floor

to call the car in the reverse direction.

5.6 Direction Reversal: A car without registered car calls arriving at a floor where both up and down hall calls are registered and the hall call is the last one in that direction, shall first respond

to the hall call in the direction that the car was traveling; and if no car call is registered for

further travel in that direction, the car shall close its doors and immediately re-open them in

response to the hall call in the opposite direction. The hall lantern shall always show the

direction the car will travel, when it leaves a floor.

5.7 Fan and Light Protection: Maximum clamping thickness of flat specimen (mm): 70/75mm (vendor shall specify this parameter for the offered machine in the technical data sheet).

5.8 Hall Button Protection: If the hall button signal system fails, all of the cars in the group shall enter Hall Button Protection operation. Each car shall answer all pending car calls. When each

car has no further demand, each car shall travel to the lobby and shut down with the doors

open.

5.9 Landing Passing Tone: An audible signal located in car operating panel shall sound when the car passes or stops at a landing.

34

5.10 Independent Service: Actuation of the Independent Service switch shall remove that car from normal group operation, permitting it to respond only to calls registered on car buttons and

making the door close operation subject to the Door Close Button. A car operating on

Independent Service shall not respond to hall calls. Car and/or hall lantern operation shall be

suspended. A Call Cancel push-button shall be provided on the car-operating panel. When the

button is activated all registered calls shall be canceled and a traveling car will stop at the next

landing.

5.11 The sensor shall be long-life and rugged.

5.12 The Elevators/ Lifts shall have built-in overload and electrical surge protection.

5.13 In case of conflict or ambiguity, the vendor may propose a value with corresponding reference standards without effecting the requirements of this specification.

Vendor shall specify all the above parameters for the offered machine in the technical data sheet.

6. Fire Fighting Service Operation Features:

6.1 Firefighters Service Phase-I: When a building smoke sensor or a key switch located at the designated return landing is activated, all cars in the group shall perform an emergency return

to the designated landing. The return operation shall be in compliance with applicable codes.

Passengers shall be alerted that the car is returning by a buzzer and a message indicator

showing "Please Exit when Doors open" and a Fireman's Hat light is also illuminated.

6.2 Alternate Return Landing for Phase-I: The car(s), while responding to a Phase 1 Firefighters' Service operation, shall return to a reselected alternate landing if the smoke

detector at the designated return landing has been activated.

6.3 Firefighters Service Phase-II: This feature shall be activated by the firefighting personnel using a key switch in the car and shall place the elevator under their control. The operation

shall be in compliance with applicable codes. This feature shall include a Call Cancel push-

button. When the button is activated all registered calls will be canceled and a traveling car will

stop at the next landing.

7. Maintenance and Operation (M&O) Features:

7.1 Top of Car Inspection: Enabling switches in the car operating panel and on top of the car shall make the car and hall buttons inoperative and allow the controls in a fixture on the top of the

car to be used to move the car at reduced speed for installation, inspection, and maintenance.

This operating station shall include a push-button, which must be continuously depressed to

permit the elevator to move in either the up or down direction. The top-of-car inspection station

shall include a 240V, 15 Amp convenience outlet with ground-fault-circuit-interrupter

protection and a convenience light with switch. The top of car fixture shall also include an

emergency stop button.

7.2 Pit Emergency Switch: A switch, accessible from the pit access door, shall be provided for each car. When a switch is activated, the corresponding car shall stop running.

35

35

8. Security Features:

8.1 ADA Emergency Communications: This feature shall provide an "Alarm Received" message indicator in the car operating panel fixture having an "Alarm" message indicator, key switch,

and buzzer. An Alarm Button in the car-operating panel shall activate the message indicator

and buzzer in the hall fixture. Activating the key switch in the hall fixture shall illuminate the

"Alarm Received" message indicator in the car.

8.2 Door Control Features/Closed Loop Control: Closed loop control Operator will be installed to allow for smooth operation under varying environmental influences such as, temperature,

wind, friction, and component variation. It will meet the specified door times and required

position and velocity profiles, with consistent running results at all landings.

8.3 Operating and Closing Times: Opening and closing speeds are adjustable. The system will limit closing speed (and hence the time) based on the code requirement of kinetic energy,

which depends on the door mass. The code may limit the speed of a heavy bronze lobby door,

but at another floor we can move the doors quicker.

8.4 Door Noise: Door noise will be 50dBA. This include reversals.

8.5 Door Control and Closing: Door control to open doors automatically when car arrives at a landing in response to a normal hall or car call. Elevator doors shall be provided with a

reopening device that will stop and reopen the car door(s) and hoistway door(s) automatically

should the door(s) become obstructed by an object or person.

a) Primary door protection shall consist of a two-dimensional, multi-beam array projecting across the car door opening. Under normal operation and for any door position, the system shall detect as

a blockage an opaque object that is equal to or greater than 1.3 inches (33 mm) in diameter when

inserted between the car doors at vertical positions from within 1 inch (25 mm) above the sill to

71 inches (1800 mm) above the sill. Under degraded conditions (one or more blocked or failed

beams), the primary protection shall detect opaque objects that are equal to or greater than 4" (100

mm) in diameter for the same vertical coverage. If the system performance is degraded to the

point that the 4" object cannot be detected, the system shall maintain the doors open or permit

closing only under nudging forces conditions. The door reopening device shall also include a

secondary, three-dimensional, triangular infrared multi-beam array projecting across the door

opening and extending into the hoistway door zone.

b) The door-opening device will cause the doors to reopen when it detects a person(s) or object(s) entering or exiting the car in the area between the hoistway doors or the entryway area adjacent to

the hoist way doors.

c) At door separations of 18" or less the secondary protection system may cease its normal operation since the depth of the zone recedes to where it is inside the hoistway doors. The vertical coverage

of the secondary protection shall be ~19" (480 mm) above the sill to ~55" (1400 mm) above the

sill (mid-thigh to shoulder of a typical adult).

d) The size of the secondary protection zone shall vary as the door positions vary during opening and closing. The width of the zone shall be approximately one-third the size of the separation between

the doors (and door and strike plate for single-slide doors) and shall be approximately centered in

the door separation. In order to minimize detection of hallway passers-by that are not entering the

elevator, the maximum zone penetration into the entryway shall not exceed 20" for any door

separation. Normal penetration depth into the entryway from the car doors shall be ~14" for a

door separation of 42". The penetration shall reduce proportionally as the doors close.

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e) The secondary protection shall have an anti-nuisance feature, which will ignore detection in the secondary zone after continual detection occurs for a significant time period in the secondary zone

without corresponding detection in the primary protection zone; i.e. a person/object is in the

entryway but does not enter. Normal secondary protection shall be re-enabled, whenever detection

occurs in the primary zone.

f) The reaction time of the door detector sub-system shall not exceed 60 milliseconds when both primary and secondary protection capabilities are active; nor 40 milliseconds when the secondary

protection is disabled.

8.6 Door Nudging: Door nudging operation to occur, if doors are prevented from closing for an adjustable period of time.

8.7 Adjustable Door Dwell Time: The time interval that elevator doors stand open after a stop shall be independently adjustable for car call stops and hall call stops. A separate door time

shall be adjustable for lobby door hall calls.

8.8 Nudging: If the doors are prevented from closing for a fixed time period, the Car Door Protective Device shall be rendered inoperative, a buzzer shall sound on the car and the doors

shall close at approximately half speed and torque. Normal operation shall resume at the next

landing reached by the car.

8.9 Door Time Open Protection: If the car doors do not open completely within a predetermined time, the car shall extinguish its hall and car direction lanterns (if provided), sound the in-car

alarm buzzer, and shall if part of a group, remove itself from group operation. Then the car

shall proceed to the next landing in its direction of travel (or reverse direction from a top or

bottom landing) and again attempt to open its doors fully. If the car moves to three consecutive

landings without being able to open its doors fully, it shall shutdown with the doors closed.

8.10 Door Time Close Protection: If the Nudging Operation does not completely close the car doors within a predetermined time, the car will extinguish its hall and car direction lanterns (if

provided), sound the in-car alarm buzzer, and shall, if part of a group, remove itself from group

operation. Then the car shall open its doors fully and again attempt to close them. If the car

cannot fully close its doors after three attempts, it shall shutdown with the doors open. Every

two minutes the car shall retry closing its doors.

8.11 Door Protection: Infrared door protection shall be installed.

8.12 Car and Hoist Doors: To be installed as per requirements.

9. Materials

9.1 Steel: Sheet Steel for Exposed Work: Stretcher-leveled, cold-rolled, commercial-quality carbon steel, complying with ASTM A366, matte finish.

9.2 Sheet Steel for Unexposed Work: Hot-rolled, commercial-quality carbon steel, pickled and oiled, complying with ASTM A569. Structural Steel Shapes and Plates: ASTM A36 and AISI

1018. 


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9.3 Stainless Steel: Type 300 Series complying with ASTM A167, with standard tempers and

hardness required for fabrication, strength and durability. 
Supply with mechanical finish on fabricated work in the location shown or specified with texture and reflectivity required

(Federal and NAAMM
Nomenclature). Protect with adhesive plastic film or paper covering.


All finishes specified as "satin" to be Manufacturer's standard directional polish that complies

with commercial No. 4 requirements. 
All finishes specified as "mirror" to be Manufacturer's

standard mirror polish that complies with commercial No. 8 requirements. 


9.4 Bronze: Cold finished muntz metal type UNS C28000-H02 complying with ASTM

B36/B36M. 
Supply with mechanical finish on fabricated work in the location shown or specified with texture and reflectivity required (Federal and NAAMM nomenclature) Protect

with adhesive plastic film or paper covering. 
All finishes specified as "satin" to be Manufacturer's standard directional polish that complies with commercial No. 4 requirements.

All finishes specified as "mirror" to be Manufacturer's standard mirror polish that complies

with commercial No. 8 requirements. 


9.5 Aluminum: Extrusions per ASTM B221; sheet and plate per ASTM B209. 


9.6 Plastic Laminate: ASTM E84 Class A and NEMA LD3, Fire-rated Grade (FR-50), 0.050" (1.3 mm) up to 1/16" (1.6 mm) nominal thickness.

9.7 Exposed surfaces: to have color and texture selected by Architect from Manufacturer's standard selection.

9.8 Fire Retardant Treated Particleboard Panels: Minimum 1/2" (16 mm) thick backup for natural finished wood and plastic laminate veneered panels, edged and faced as shown, proved

with suitable anti-warp backing; to meet ASTM E84 Class "A" rating with flame-spread rating

of 25 or less, registered with appropriate authorities for elevator finish materials.

9.9 Natural Finish Wood Veneer: Standard thickness 1/36" (0.7 mm) to 1/42" (0.6 mm), thoroughly dried conforming to ANSI/HPMA HP-1983, Premium Grade. Specified finish to be

chosen from elevator manufacturer's standard selection. 


9.10 Paint: Unexposed Steel and/or Iron: Clean exposed metal of oil, grease, scale and other foreign matter and paint one shop coat of Manufacturer's standard rust-resistant primer. Primer shall be

of a low V.O.C. water-based type. Galvanized metal need not be painted.

9.11 Exposed Steel: Clean exposed metal of oil, grease, scale and other foreign matter. Eliminate any dents, scratches, or other defects that would affect the final finish. For material delivered

with primer coat only, apply two coats of manufacturer's standard powder coated primer. For

material delivered with a finish coat apply an additional two coat of manufacturer's standard

powder coated of a color selected by the Architect from the manufacturer's standard color

selection.

10. Equipment

10.1 Controller: A microcomputer-based control system shall be provided to perform all of the functions of safe elevator motion. Included shall be all of the hardware required to connect,

transfer and interrupt power, and to protect the motor against overloading. The system shall

also perform car and group operational control. 
Each controller cabinet containing memory equipment shall be properly shielded from line pollution. The microcomputer system shall be

designed to accept reprogramming with minimum system down time. 
All high voltage (230V or above) contact points inside the controller cabinet shall be protected from accidental contact

in a situation where the controller doors are open.

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10.2 Motion Control: A microprocessor-based motion control system with a dictated position and velocity profile shall be provided.

10.3 Remote Elevator Monitoring: Install a remote monitoring device to allow 24 hours off site monitoring of the health of the elevator system and to dispatch a service call as required in an

entrapment.

11. Design and Drawings

11.1 Before commencing work, the Contractor shall design, prepare and submit all drawings for individual two (2) lifts (One passenger and one goods Elevator/Lift) as specified (in required

number of sets) necessary to show the general arrangement and details of lifts installation,

electrical, mechanical and civil etc. These drawings must be approved by the Consultant/BREB

before installation and shall become part of the contract.

11.2 The Contractor shall, within 3 (three) weeks of receipt of a Letter of award of Contract, submit 4 (four) copies of all working drawings showing pit, hoistway and machine room layouts

clearly indicating and specifying all connected structural, electrical and architectural works

including imposed structural static / dynamic loads (including breaking load on guides, reaction

of buffers on lift pits, reaction on support points in machine room, lift well etc.) and electrical

ratings including calculations for selection of kW rating of motor. Within 10 days of receipt of

letter of award of Contract, the Contractor shall obtain from the concerned BREB approved

Authority all the information he needs to prepare his drawings and shall have any interaction

with the concerned Authority to finalize all parameters and data for design.

11.3 The Contractor will be responsible for any discrepancies, errors and omissions in the drawings or particulars submitted by him even if these have been approved by the concerned BREB

approved Authority. On approval of these drawings (within 2 weeks of submission of full

documentation), the Contractor shall submit 4 (four) copies of approved working drawings

incorporating corrections / comments, if any, and shall immediately commence work.

11.4 On completion of work, the contractor shall supply four sets of soft copies and 4 (four) copies of the detailed wiring diagram, „As built‟ drawings and equipment operation and maintenance

manuals and original certificates from „Inspector of Lifts‟ for all the lifts. Further, a copy of

such detailed diagram and a set of instructions for evacuation of passengers in case of

breakdown of the lifts shall be framed and installed in the respective machine room by the

Contractor.

11.5 The Contractor shall carry out all the work strictly in accordance with drawings, details and instructions of concerned BREB approved Authority.

12. Works to be arranged for Contractor

12.1 The following items shall be provided to the Elevator Contractor under instructions of the Project Manger to suit the requirements of the Contractor.

a) Hoistways, machine rooms and pits of specified dimensions (within normal building tolerances).

b) Floor, wall and ceiling finishes in Hoistways, pits and machine rooms; including painting (except painting of equipment and materials supplied by lift Contractor) and waterproofing, as

well as doors and windows in machine room. Cables from main L.T. Panel Board through the

Hoistwaysterminating in and including individual Main Switches of required rating for three

phase and single-phase supply in Machine Rooms including necessary earthing.

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c) Free three phase power supply for group testing and commissioning of lifts after erection is completed.

d) Lighting installation within machine rooms as required by the lift Contractor including single-phase main switch with ELCB at machine room.

e) The equipment shall be suitable to operate on 230/415 Volts 3 phase, 4 wires, 50 Hz. A.C. supply with a variation of +10% in Volts and +5% in frequency respectively. The supply for

illumination and single-phase equipment shall be 230 Volts A.C.

f) Lighting installation within Hoistwaysand pits as required by the lift Contractor including 1-phase main switch at machine room.

g) Ventilation system of machine rooms with minimum 18" heavy duty exhaust fan in each machine room as per the requirement of applicable codes and standards.

h) Providing of hoisting beam in the machine room for hoisting of equipment during erection and to facilitate maintenance in future.

13. Elevators Contractor’s Responsibilities: Ancillary Works

a) All cabling, wiring and earthing from three phase main DB in machine room to Lift

Contractor‟s equipment.

b) All steel items i.e. machine beam/bases, pedestals/ bearing plate in the machine room, separators wherever required and buffer support channels, vertical iron ladder in lift and

structural steel supports and brackets for the installation in etc., to suit the sizes of the

hoistways.

c) Sill tracks including sill supports, supporting protection at all landings. d) Screen guards, facia plates and other protection for installation. e) To carry out minor civil work, such as chipping & making openings in slabs, grouting of

foundation bolts in shaft, pit and machine room, modification and making rail bracket, hall

buttons indicators and laying of sills in positions. Or any other work required for smooth

operation/ commissioning of lifts. All chiselling and cutting of pockets and making good.

(All cutting shall be as approved by Consultant/BREB).

f) Ensuring safety against accidents including barricading all openings and caution signs. g) Scaffolding and other Tools & Tackles required for installation in the Hoistwayrequired for

erection of lifts.

h) All other items necessary for satisfactory execution & completion of works, whether specified or not.

i) Power shall be provided at incoming of main DB for lifts. Main DB in the machine room shall be provided by the lift contractor. From main DB to lifts, cables shall be in the scope of

lift contractor. However, lighting for machine room shall be done by others.

j) Trap doors, floor gratings, steps / ladders and openings in machine rooms and ladders for pits as required by the lifts Contractor. Contractor shall furnish the details of these items in the

layout drawing for lifts to be submitted after award of the job.

k) Temporary power supply connection(s) for erection work shall be arranged by the lift Contractor.

l) Electrical: Electrical service to main disconnect in elevator machine room; electrical power for elevator installation and testing; electrical-disconnecting device to elevator equipment

prior to activation of sprinkler system; electrical service for machine room; machine room and

pit receptacles with ground - fault current protection; lighting in machine room and pit; wiring

for telephone service to machine room.

m) Fire Alarm System: Fire and smoke detectors and interconnecting devices; fire alarm signal lines to contacts in the machine room. System not to be self-resetting. System may or may not

be tied to the building fire life safety system. Subject to local fire code.

n) Telephone System: Telephone System required for the emergency communications equipment single dial tone outside line will be required per elevator and will be run to the

corresponding controller.

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14. Sound Reduction

14.1 The Contractor shall provide necessary sound reduction materials, such as rubber pads/ anti vibration pads of proper density to effectively isolate the machine from the machine beams

and/or flooring.

14.2 Noise level inside cars and in the machine-room shall be maintained at minimum levels as laid down in the relevant codes and in any case not more than specified under performance

parameters.

15. Traction Machine:

15.1 The machine shall be worm geared traction type with motor (steel worm, bronze gears, steel sheave shaft & Ferro molybdenum sheave), electro-mechanical type of brake and driving

sheave mounted in proper alignment on a single heavy cast iron base or steel bedplate.

15.2 The worm shaft shall be fitted with roller bearings to take end thrust. The sheave shaft shall also be fitted with ro