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Doc No:CMD-III/302-2-30/1 MANUAL Date of Issue: 17 March 2008

MANUAL FOR CERTIFICATION OF

ELECTRICAL RADIATORS

(First Issue)

IS 302-2-30:1992-incorporating Amendment No.1 to 5 and

IS 369: 1992 incorporating Amendment No. 1 & 2

BUREAU OF INDIAN STANDARDS MANAK BHAWAN, 9, BAHADUR SHAH ZAFAR MARG, NEW DELHI – 110002

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CONTENTS

SECTION/ ANNEXURE / APPENDIX

TITLE PAGE IN SECTION

CONTENTS 2

SECTION 0 FOREWORDS 3 SECTION I PRODUCT DESCRIPTION 4 SECTION II SPECIFICATION (S) 6 SECTION III MANUFACTURING PROCESS

AND CONTROLS 9

ANNEXURE 1 LIST OF MANUFACTURING MACHINERY FOR ELECTRIC RADIATORS

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ANNEXURE 2 RAW MATERIALS REQUIRED FOR MANUFACTURE OF ELECTRIC RADIATORS

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ANNEXURE 3 PROCESS FLOW CHART 12 SECTION IV-1 INSPECTION AND TESTING 13 SECTION IV- 2 TEST METHODS 14

SECTION IV- 3 TEST EQUIPMENT 16 ANNEXURE 4 LIST OF TESTING / MEASURING

INSTRUMENTS 17

SECTION V CERTIFICATION CRITERIA 18

APPENDIX I A SCHEME OF TESTING AND INSPECTION (IS 302-2-30:1992)

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APPENDIX I B SCHEME OF TESTING AND INSPECTION (IS 369:1992)

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APPENDIX II MARKING FEE SCHEDULE 41

APPENDIX III LIST OF LABORATORIES WHERE THE SAMPLES CAN BE TESTED

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APPENDIX IV BIS / OUT SIDE TESTING CHARGES

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APPENDIX V LOT INSPECTION SAMPLING PLAN, IF APPLICABLE

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APPENDIX VI GAZETTED STANDARD MARK(S) 50

APPENDIX VII TYPICAL ENDORSEMENTS OF PRODUCT VARIETIES IN LICENCE DOCUMENT

51

APPENDIX IX SPECIAL GUIDELINES 53

Latest Information is

available on Intranet / BIS

Website www.bis.org.in.

http://www.bis.org.in

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FOREWORD

0.1 The electric radiators are commonly used in homes and offices to warm the rooms during winter season.

0.2 BIS has published two Indian Standards for electric radiators namely IS 302-2-30:1992 – Safety of household and similar electrical appliances- Part 2 Particular requirements, Section 30 Electric radiator and IS 369:1992 Electric radiator. Both these standards were reviewed extensively and 5 amendments were issued to IS 302-2-30:1992 and 2 amendments were issued to IS 369:1992.

0.3 The standard on safety requirements of electric radiators, IS 302-2-30: 1992, is covered under mandatory BIS certification marking scheme. The electric radiator designed / manufactured for safety parameters only is covered in schedule 2 (e), under “Electrical Wires, Cables, Appliances and Protection Devices and Accessories (Quality Control) Order, 2003”. This order is issued by the Central Government after consulting the Bureau of Indian Standards, in Indian Gazette notification -S.O. 189(E) dated 17 February 2003 under the powers conferred by section 14 of the Bureau of Indian Standards Act, 1986 (63 of 1986). The order prohibits any body himself or through his agent to manufacture, store / storage, sell or distribute any electrical wires, cables, appliances, protection devices and accessories covered in its schedule, which do not conform to the Specified Standards and do not bear Standard Mark of the Bureau on obtaining certification marks licence.

0.4 Earlier, different procedures were adopted by BIS regional and branch offices. Some times the scope of the product in BIS licence was also found given differently. Therefore, it was felt necessary to prepare Sectoral certification manual for certification of electric radiators for uniform procedures throughout BIS.

05 This Manual provides GENERAL GUIDELINES for various aspects related to certification of electric radiators. Efforts have been made to provide applicable Scheme of Testing and Inspection (STI), type & routine tests, testing charges (BIS & outside laboratories), sampling plan for acceptance of lots offered for inspection, marking fee, typical forms of test reports used by BIS laboratories and testing procedures prescribed in the Indian standard.

06 This document is intended for internal use in BIS offices only. Suggestions for improvement in the manual are always welcome by Director & Head CMD I, Central Marks Department, BIS, New Delhi.

THIS DOCUMENT IS INTENDED FOR INTERNAL USE BY BIS INSPECTING OFFICERS WHO SHOULD HOWEVER DO NOT TREAT SUCH DOCUMENT AS REPLACEMENT FOR REFERRED STANDARDS OR THAT OF RELEVANT SCHEME FOR TESTING AND INSPECTION (STI). STANDARDS AND OTHER DOCUMENTS ( STI ETC.) REFERRED ARE AS APPLICABLE AT THE TIME OF PREPARATION OF MANUAL HOWEVER, LATEST STANDARDS/OTHER DOCUMENTS AS IMPLEMENTED SHALL BE REFERRED.

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SECTION I

1. PRODUCT DESCRIPTION: 1.1 There are two types of room heaters, namely heat radiated through

reflecting surface and hot air fans which displace heat by electric fans , called heat convectors. The first category of room heaters of radiator type are described in this manual. The radiators are assembled from different parts as follows: i) Brightly polished metal sheet reflector, ii) Heating element placed in the centre of the reflector , iii) Metal protective guard, iv) Stand for placement of appliance on the floor, v) Three core electric flexible cord / cable for supply

connection, vi) Three pin plug connector for connection to supply power

3-pin socket inlet. 1.2 Function of components: The heating element made of nichrome resistance wire

wound over ceramic core radiates heat on energization by electric current. The reflector radiates heat uniformly in front side. The metal guard provides protection from touching of live heating element from foreign body / parts or falling weight. The stand provides strength and stability to radiator to keep it in position when used. Three pin plug and cable having earthing connection gives complete safety against electric shock, provided the supply wiring has adequate earthing system in place.

1.3 Specifications: The following standard specifications are applicable for understanding the contents of the manual:

i) IS 302-2-30:1992 – Safety of household and similar electrical appliances- Part 2 Particular requirements, Section 30 Electric radiator

ii) IS 369:1992- Electric radiator, iii) IS 302-1:1979- General and safety requirements for household and similar

electrical appliances. 1.4 Types / class / grade: The electric radiator is assembled with heavy metal base or

sheet metal stand. The radiator may have single heating element or double heating element for higher rating. All the radiators are constructed as class I appliance with earthing terminal and three pin plug connection.

1.5 Technology: No complicated or sophisticated technology is required for assembly of electric radiators.

1.6 Types of complaints: There are possibilities of breaking of the heating elements due to failure of Nichrome wire because of ageing or non uniform section of the wire. The failure of element could also be due to abnormal supply voltage, in excess of rated voltage. The second major reason of failure of radiator is breaking of refractory reel on which the nichrome wire is wound.

1.7 Statutory and regulatory requirements: The safety requirements of electric radiator as per IS 302-2-30 are assured by inclusion in the list of electric appliances covered for compulsory certification by BIS for use of standard Mark. The other specification for all requirements including endurance test, IS 369:1992 is not included in the mandatory list as such , it may not carry ISI mark in all cases.

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However it is advisable to ensure complete safety and value for money by BIS Certification Mark scheme. See more details in Section 0, clause 0.3 of this manual.

1.8 Statutory Body governing the compulsory certification: The Ministry of commerce and Industry (department of industrial policy and promotion) government of India have authorized BIS for operation of ISI marking scheme on electric radiators manufactured in the country. The identified authorities in BIS, state governments and Union territories have been empowered to act as watch dog for monitoring the implementation / compliance of Rules for any violations by manufacturers, business houses or retailers of the electric radiators. The details for use of BIS standard Mark on electric radiators may be obtained from nearest BIS regional / branch office.

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SECTION II

2. SPECIFICATION 2.1 The following Indian standard specifications are covered in this manual:

i) IS 302-2-30:1992 – Safety of household and similar electrical appliances- Part 2 Particular requirements, Section 30 Electric radiator ii) IS 369:1992- Electric radiator,

2.2 IS 302-1:1979- General and safety requirements for household and similar electrical appliances – is a necessary adjunct & should be read along with the product specifications referred above. The technical, constructional requirements and testing procedures are elaborated in this section.

2.3 Scope: IS 302-2-30:1992 (read with 5 Amendments) covers general and safety requirements for electrically heated radiators designed for connection to supply voltage not exceeding 250 V, ac, single phase, 50 Hertz (Hz) or dc. IS 369:1992 Covers the safety and performance requirements of electrically heated radiators designed for connection to supply at voltage not exceeding 250 V ac, single phase, 50 Hz, or dc.

2.4 Terminology: The definitions and terms given in clause 2 of IS 302-1:1979 shall apply to both the standards on electric radiators. Where the terms voltage and current are used, they imply the rms values, unless otherwise specified.

2.5 General requirements: Clause 3 of IS 302-2:1992 is applicable. 2.6 Rating: The preferred rated voltage shall be 240 V, ac or dc. However, 230 V, ac is

also permissible. The power input of radiators shall be one of these ratings, 500; 750; 1000; 1500; 2000 Watt.

2.7 Classification: The radiators are classified as Class I according to their protection against electric shock and classified as ordinary appliance according to their degree of protection against protection against moisture.

2.8 Marking: Clause 7 of IS 302-2-30:1992 is applicable. 2.9 Protection against electric shock: Clause 8 0f IS 302-2-30:1992 is applicable. 2.10 Input and Current: Clause 10 0f IS 302-2-30:1992 is applicable. 2.11 Temperature Rise: Clause 11 0f IS 302-2-30:1992 is applicable. 2.12 Operation under Overload conditions: Clause 12 0f IS 302-2-30:1992 is

applicable. 2.13 Electrical Insulation and Leakage Current at Operating Temperature: Clause

13 0f IS 302-2-30 :1992 is applicable. 2.14 Moisture Resistance: Clause 15 0f IS 302-2-30:1992 is applicable. 2.15 Overload Protection: Clause 17 0f IS 302-2-30:1992 is not applicable to radiators

manufactured to meet safety and performance standards. 2.16 Endurance: i) The requirement given in Claus 18 is not applicable to

radiators covered in IS302-2-30:1992. ii) The requirement given in Clause 12 of IS 369:1992 shall be

applied to radiators designed for safety and performance standard.

2.17 Abnormal Operation: Clause 19 0f IS 302-2-30:1992 is applicable. 2.18 Stability and Mechanical Hazards: Clause 20 0f IS 302-2-30:1992 is applicable. 2.19 Mechanical Strength: Clause 21 0f IS 302-2-30:1992 is applicable.

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2.20 Construction: Clause 21 0f IS 302-2-30:1992 is applicable. The additional

requirements given in Clause 22.101 to 22.105 are also applicable. 2.21 Internal Wiring: Clause 23 0f IS 302-2-30:1992 is applicable. 2.22 Components: The conformity of the following components shall be ensured to

published Indian standards by either in-house testing or by using BIS marked components out sourced from other manufacturers for assembly of immersion heater (also see STI in Appendix I) :

2.23 Supply Connection and External Flexible Cables and Cords: Clause 23 0f IS 302-2-30:1992 is applicable. The effective length of the flexible cable when measured from inlet point of the appliance or connector to the inlet point of the plug, including any cord guards shall be 2.0 metre when provided with 3-pin plug, or not less than 2.05 metre if supplied without a plug. The sectional area of the conductor of flexible cable shall not be less than 0.50 mm² for appliances rated up to and including 3 Amperes and 0.75 mm² for appliances rated up to and including 10 Amperes. The inlet bushes shall be so designed that there is no damage to the cable and it shall be reliably fixed.

2.24 Terminals for External Conductors: Clause 26 of IS 302-2-30: 1992 is applicable. 2.25 Provision For Earthing: Clause 27of IS 302-2-30: 1992 is applicable. 2.26 Screws and Connections: Clause 28 of IS 302-2-30:1992 is applicable. 2.27 Creepage Distances and Clearances: Clause 29of IS 302-2-30:1992 is applicable. 2.28 Resistance to Heat Fire and Tracking: Clause 30 of IS 302-2-30:1992 is

applicable. 2.29 Resistance to rusting : The ferrous parts, the rusting of which might cause the

radiator to fail to comply with this standard shall be adequately protected against rusting.

2.30 Radiation Hazards: The requirements of radiation hazard is not applicable. 2.31 Additional requirements for radiators built for IS 369:1992:

a) Dimensions: Clause 10 of IS 369:1992 is not applicable. b) Temperature rise of surface on which the radiator is placed: Clause 11.1

of IS 369:1992 is applicable. The test is possible in the test corner (see details for temperature rise test in 2.11 of this manual).

c) Endurance : The requirements of Clause 12 of IS 369:1992 are applicable. The radiator shall withstand an endurance of 96 hours under adequate heat discharge connected to supply voltage to maintain 1.15 times input to the radiator without failure of heating element or weakening of electric insulation.

Component / part Conformity to Indian standard specification (ISS)

Elastomer Flexible cables and supply cord

9968(Part1)

Plugs 1293 Resistance wires and for heating purpose

IS 3725 (under revision, see doc. ET 32(5040)

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d) Finish: The requirements given in Clause 13 of IS 369:1992 are applicable.

The ferrous parts are tested for any rusting of the parts after the test in Clause 13.2 of IS 369 :1992.

2.32 Tests: The electric radiators are subjected to tests for conformity to the standard specification. The routine tests, acceptance tests and type tests specified in Clause 101 of IS 302-2-30:1992 and Clause 14 of IS 369:1992 are applicable. For the purpose of certification and use of standard mark of BIS, the radiators are subjected to requirements of latest applicable Scheme of Testing and Inspection (STI). The current STIs are given in Appendix I of this manual.

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SECTION III

3 MANUFACTURING PROCESS AND CONTROLS 3.1 Manufacturing Process: The electric radiators are assembled from following

components: a) Brightly polished metal sheet reflector, b) Heating element placed in the centre of the reflector, c) Metal protective guard, d) Stand for placement on the floor, e) Three core electric flexible cord / cable, f) Three pin plug.

3.2 Technology of Manufacture: All the components are finished items, manufactured either in-house or bought from the other manufacturer. The components are subjected to routine tests before assembly and followed by testing the finished product for tests given in STI of BIS (See Appendix I) to check the compliance to IS 302-2-30 or IS 369:1992 as relevant.

3.3 Manufacturing machinery: The typical list of machinery required for manufacturing the electric radiators is given in Annexure 1.

3.4 Raw Materials: The details of raw materials used in the manufacture of electric radiators are given in Annexure 2.

3.5 Manufacturing process flow chart: The typical process flow chart for manufacture of electric radiator from raw materials is given in Annexure 3.

3.6 Hygienic conditions: The environment condition and cleanliness of the working area should be congenial to workers. There should be proper ventilation, lighting

arrangement to make it risk free work place for the workers.

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Annexure 1 (Clause 3.3)

LIST OF MANUFACTURING MACHINERY FOR ELECTRIC RADIATORS

Sl. No. Name of machinery Source of supply 1* Sheet steel cutting machine (Shearing) Local suppliers 2 * Rolling Machine Local suppliers 3 * Gas cutting set Local suppliers 4 * Electric welding set Local suppliers 5 * Spot welding machine (Electric) Local suppliers 6 * Punching machine Local suppliers 7 Drill machine with suitable drill bits Local suppliers 8 Hand / electric grinder Local suppliers 9 Hand press ,wheel type Local suppliers 10 Electric hand drill Local suppliers 11 Rubber hammers Local suppliers 12 Hand tools like spanners, pliers etc Local suppliers 13 Compressor for spray painting Local suppliers 14 Spray painting gun and accessories Local suppliers

* Note: If the manufacturer procures processed parts of CRC sheet steel for body from sheet metal suppliers , then these machines are not required by assembler of electric radiators.

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RAW MATERIALS REQUIRED FOR MANUFACTURE OF ELECTRIC RADIATORS

Sl. No. Name of raw material Source of supply 1 Cold rolled (CR) sheet for outer body Local market / suppliers 2 Cold rolled (CR) sheet for reflector Local market / suppliers 3 MS wire for safety (protective )guard Local market / suppliers 4 Resistance wire Local market / suppliers 5 Refractory (porcelain) tube / rod Local market / suppliers 6 Porcelain Connectors for leads /

terminals Local market / suppliers

7 Lead wires for internal connections Local market / suppliers 8 Bakelite / insulated handle Local market / suppliers 9 Paints of different colours for spray

painting of outer body Local market / suppliers

10 3 core insulated cable / cord Local market / suppliers 11 Packing boxes & packing paper Packaging suppliers of

specific packing as per manufacturer’s design

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PROCESS FLOW CHART

inletDie cutting & pressing of CR sheet for making sides (body)

A

Corrugation of sheet for reflector (bending of sheet)

B

Production of wire protective guard

C

Painting of sheet metal parts Electro-plating of reflector

Electroplating of protective guard of reflector / heating element

Assembly of sheet metal parts with reflector

A+B

Completion of electrical wiring & fitting of heating element

Fixing of protective guard (assembly)

A+B+C

Testing of assembled electric radiator (As per STI)

Packing of Electric radiator

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SECTION IV-1

4.1 INSPECTION AND TESTING 4.1.1 Electric radiators are checked for compliance to the Indian standard specification by

testing in the laboratory equipped with testing / measuring instruments. These tests are classified as i) Routine, ii) acceptance, and iii) type tests.

4.1.2 The details for checking are given in clause 2.32 and STI (Appendix I) of this manual.

4.1.3 Checking of raw materials: The components / items listed in clause 2.22 of section II shall be checked for conformity to identified standards. These parts may be procured with ISI standard mark or tested in-house for this purpose. Alternatively, the components may be got checked, on regular basis, from an out side laboratory under agreement, in accordance with the frequency given in STI (see Appendix I) and the records of such tests should be maintained for inspection by BIS inspecting officers on demand.

4.1.4 In cases where there are no existing standard specifications, the manufacturer may decide and declare the tests being performed to meet company’s own specification of quality.

4.1.5 The applicant / prospective licensee shall agree (see CM/PF 310), before grant of BIS licence, to comply with all terms and conditions given in STI (see Appendix I).

4.1.6 STI /302-2-30/1 (May 1995) and STI / 369 / 7 (Oct 1993) for radiators stipulates the terms and conditions for grant of BIS licence, checks / tests on daily, weekly, 6-monthly basis carried on raw materials, on-line tests of sub assemblies & final assembled product for maintaining the quality, electrical safety from appliance and its performance.

4.1.7 The bulk buyer, under agreement with supplier, may resort to sampling of lots for inspection and carrying out acceptance tests given in specification read with Appendix B of IS 302-1:1979. (also see clause 4.2.4 section IV-2 of this manual)

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SECTION IV-2

4.2 TEST METHODS 4.2.1 The specification on radiators (both safety requirements and composite including

endurance) specifies the type tests for complete conformity to safety and general construction of radiators. IS 302-1:1979 (with 9 amendments) gives test procedures applicable to heating, motor operated and combined appliances. However, applicable requirements are specified in individual specification on the product.

4.2.2 The following table gives the methods of tests and the reference to IS 302-1:1979 and additions or modifications to methods in IS 302-2-30:1992 & IS 369:1992:

Sl. No. Tests (Clause reference of IS 302-2-30:1992, Table 101) Method of test

IS 369:1992 Method of test:

1 Protection against electric shock

8 read with clause 8 of IS 302-1:1979

8 of IS 302-2-30:1992

2 Input 10 read with clause 10 of IS 302-1:1979

10 of IS 302-2-30:1992

3 Temperature rise 11 amendment no. 2, read with clause 11 of IS 302-1:1979

11 of IS 369:1992

4 Operation under overload condition


12 of IS 302-2-30:1992

5 Electrical Insulation & leakage current at operating temperature


13 of IS 302-2-30:1992

6 Radio & Television interference

NOT APPLICABLE NOT APPLICABLE

7 Moisture resistance 15 read with clause 15 of IS 302-1:1979

15 of IS 302-2-30:1992

8 Insulation resistance and electric strength (after humidity treatment)


16 of IS 302-2-30:1992

9 Endurance NOT APPLICABLE AT PRESENT

12 of IS 369:1992

10 Abnormal operation 19 read with clause 19 of IS 302-1:1979

19 of IS 302-2-30:1992

11 Stability and mechanical hazards

20 ,amendment no. 1, 4 read with clause 20 of IS 302-1:1979

20 of IS 302-2-30:1992

12 Mechanical strength 21 read with clause 21 of IS 302-1:1979

21of IS 302-2-30:1992

13 Constructional requirements 22, clause 22.101 to 22.105 & Annex AAA read with clause 22 of IS 302-1:1979

22 of IS 302-2-30:1992

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Sl. No. Tests (Clause reference of IS

302-2-30:1992, Table 101) Method:

Clause No. of IS 369:1992 Method:

14 Internal wiring 23 read with clause 23 of IS 302-1:1979

23 of IS 302-2-30:1992

15 Components 24 read with clause 24 of IS 302-1:1979

24 of IS 302-2-30:1992

16 Cord grip and cord guard 25 amendment no. 1 read with clause 25 of IS 302-1:1979

25 of IS 302-2-30:1992

17 Terminals for external conductors


26 of IS 302-2-30:1992

18 Provision for earthing 27 read with clause 27 of IS 302-1:1979

27 of IS 302-2-30:1992

19 Screws and connections 28 read with clause 28 of IS 302-1:1979

28 of IS 302-2-30:1992

20 Creepage distances and clearances


29 of IS 302-2-30:1992

21 Resistance to heat, fire and tracking


30 of IS 302-2-30:1992

22 Resistance to rusting / Finish of external surfaces

31. No test is specified 13 of IS 369:1992

4.2.3 Routine tests: (both IS 302-2-30:1992 and IS 369:1992) The methods of testing are as follows:

Sl. No. Tests Clause reference of IS 302-2-30:1992, Table 101 Method:

Clause No. of IS 369:1992 Method:

1 Protection against electric shock

8 of IS 302-2-30 read with clause 8.1,8.5 of IS 302-1:1979

8 of IS 302-2-30:1992

2 High voltage test 13 of IS 302-2-30 read with clause 13.3.2 of IS 302-1:1979

13 of IS 302-2-30:1992

3 Earthing connection 27 of IS 302-2-30 read with clause 27 of IS 302-1:1979

27 of IS 302-2-30:1992

4.2.4 Acceptance tests: The tests are carried out by the purchaser, with prior agreement, for acceptance of lots at the time of inspection in the factory / godown. The recommended sampling plan is given in Appendix B of IS 302-1:1979.

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SECTION IV-3

4.3 Testing Equipments 4.3.1 The testing equipments essential for type tests on electric radiators should be

selected that it maintains reliable and credible values of measurements. All measuring and testing equipments which indicate measurable values should be at least of Class 1 accuracy (1%), unless otherwise given in the specifications.

4.3.2 The measuring instruments shall be calibrated at the frequency given by instrument manufacturer or the calibration laboratory as the case may be, to maintain traceability to national standards. The instruments should preferably be calibrated in NABL accredited laboratory. The frequency of calibration of measuring instruments should generally be decided by the user depending on its frequent use, handling and past records of its accurate measurements. It is noted that most of the calibrating laboratories suggest the ‘next calibration due’ in the calibration certificate.

4.3.3 The measuring instruments requiring specific environment conditions (temperature & humidity) as per manufacturer’s instructions for use, should be stored and used in specified conditions only

4.3.4 In between the interval of calibration cycle, all testing equipments and measuring instruments should be regularly checked for their working and test worthiness. Accordingly, the log book of the instruments should be maintained in which records of repairs and their calibrations and in house checks are recorded. The records may be shown to BIS inspecting officer on demand.

4.3.5 The list of testing / measuring equipments is given in Annexure 4.

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Annexure 4

(Clause 4.3.5)

LIST OF TESTING / MEASURING INSTRUMENTS

Sl. No. Test Equipment / measuring instrument

Range Class of accuracy / Least count

1 Voltmeter 0 to 300 V, ac Class 1 2 Ammeter 0 to 20 A, ac Class 1 3 Wattmeter 0 to 4000 W, ac Class 1 4 Stepless variable

voltage transformer , Single phase 0 to20 A, ac, 0 to 270 V, ac output

-

5 Voltmeter 0 to 5 V, ac Class 1 6 Ammeter 0 to 30 A, ac Class 1 7 Milli ammeter for Leakage current

0 to 1000 µA, ac Class 1 8 High voltage tester Input 230 / 240 V

Out put 0 to 3000 V, ac Accuracy ± 3 %

9 Thermocouple with digital / analog indicator

0 to 999 º C ± 1º C

10 Cord grip test apparatus As per clause 25.11 of IS 302-1:1979

-

11 Vernier caliper 0 to 150 mm L C 0.01mm

12 Feeler gauges 9 blades, 0.1 to 0.6mm LC 0.01mm

13 Micrometer 0 to 25 mm LC 0.01 14 Torque screw drivers As per clause25.11 of IS

302-1:1979 15 Wooden test corner See details in clause 11 of

IS 302-1:1979 16 Laboratory ovens having

thermostatic controls for temperatures

Ambient to 300 º C ± 1º C

17 Ball pressure apparatus See fig. 14 of IS 302-1:1979

-

18 Inclined plane for making incline up to 15 º (degrees)

See clause 14 of IS 302-1:1979

LC 1 º

19 Impact test apparatus See clause 21 of IS 302-1:1979

-

20 Laboratory Weights & commercial weights / spring balance


-

21 Air conditioned space in laboratory to maintain 27± 5º C


-

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SECTION V

5 CERTIFICATION CRITERIA (Note: The details are taken from BIS operating manual for product certification scheme -2004, 5th revision)

5.1 PRE-REQUISITES FOR GRANT OF LICENCE 5.1.1 The basic requisites for the grant of licence to use the Standard Mark to a

manufacturer are: a) The availability of all relevant manufacturing and processing equipment.

While assessing the relevance of the manufacturing equipment it is imperative to have fairly good understanding of the production variables, controls and checks for production of goods of consistent quality in a continuous manner.

b) Availability of authorized and/or adequate power and water supplies, where such supplies are required for manufacturing and testing.

c) A test laboratory fully equipped to check all quality characteristics of the product strictly in accordance with the test procedure detailed in the specification. This quality control laboratory should be manned by competent and qualified personnel who could be expected to provide test results with a fair amount of repeatability and reproducibility, except when relaxed under Cl 4.13 and Cl 4.14. of operating manual for product certification 2004.

d) The conformance of the product and raw material wherever specified completely to quality characteristics as given in the relevant Indian Standard, when tested.

e) The applicant confirming his acceptance formally in writing : (i) to follow the scheme of testing and inspection and (ii) to pay the marking fee relevant to the product for which he has applied to get the licence.

f) Availability of Indian standards needed for use to maintain quality in manufacture and its inspection.

g) Necessary documentation is available authenticating the premises of manufacture.

Note: Certificates/documentary evidence from Registrar of Firm / Directorate of Industries/ Industries Centre/Gram Panchayat / Municipal Corporation / Local Body / Central Insecticides Board or Drug Controller / Pollution Control Board may be accepted for the purpose of authentication of premises. The following documents may also be accepted for authentication purposes:

i) Sale deed indicating ownership of the premises by the applicant firm. ii) In case the applicant firm is having tenancy rights over the premises, the

valid lease deed showing lawful occupancy of the firm over the premises. iv) Any other document like firm's registration with Sales Tax

Authority, Central Excise Authority/Registrar of Societies shall be additional documentation with respect to (i) and (ii) above.

5.1.1.1 Requirements (Norms) for quality control / laboratory person: Although no specific guidelines are provided , it would be beneficial advise

to the licensee / applicant to appoint an experienced person having at least diploma in electrical engineering for smooth implementation of STI and proper interpretation of standard’s clauses in day to day work.

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5.1.2 The requisites detailed above are to be fully satisfied before a licence is

granted to the party. The scheme does not generally permit part time employment of manufacturing and testing personnel and debars use of testing and manufacturing equipment owned by party other than the applicant. Any deviation from prerequisites requires prior sanction of Competent Authority who may, based on the merit of the case, permit relaxation in the in house testing facilities in accordance with the guidelines on the subject (see clauses 4.13 and 4.14 of operating manual product certification ).

5.1.3 Preliminary Evaluation of Factory: The preliminary factory evaluation of the manufacturing premises of an applicant should be carried out, as far as practicable, by officer(s) with adequate knowledge of the particular product and industry. In case an officer having adequate knowledge is not available in the branch office, service of an officer of the requisite discipline in a technical department, CMD or RO may be availed (see details in clause 2.7 of operating manual for product certification 2004)

5.1.3.1 The inspecting officer should assure the good working of the in-house laboratory in the factory. He should witness some of the acceptance tests carried by technician. It would work two ways. Firstly, it would give fair idea of competence of the technician; secondly it would also give information on working of the measuring equipments. The test results should be recorded in the laboratory test register / record.

5.1.4 Sampling for independent tests: (refer clause 2.8 of operating manual for product certification). During Preliminary Inspections, samples of raw materials/components shall be drawn for independent testing where ensuring conformity of raw materials is the normative requirement of the product standard being considered for Certification. In case of inspections for inclusion of new varieties, samples of only additional raw materials/components, if any, shall be drawn.

5.1.4.1 Samples of raw materials/components shall also be drawn, even if they are BIS Standard Marked. However, they shall be treated only as Market sample(s) of the concerned licensee(s). The case may however be processed for grant of licence / inclusion without awaiting the test results of the raw material sample(s). It should however be ensured that the markings on the raw material/component are genuine, and the firm has the appropriate records of purchase. For raw material samples, other than ISI Mark, the applicant shall be given two chances for reoffering the raw material samples provided the product sample is found to be conforming.

Note : This provision, however does not affect closure of applications where time norms have been stipulated.

5.1.4.2 Samples of raw materials / components may also be drawn during surveillance visits by rotation so as to test all raw materials during a period of two years

5.1.4.3 Where Indian standards for raw materials are referred to in the product Standard

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for guidance or reference only, raw material samples should not be drawn. However, suitable declaration may be taken from the applicant/ licensee depending on the stipulation in the standard.

5.1.4.4 Separate raw material samples shall not be drawn where the requirements of a raw material can be tested from the product itself. Test certificates of the conformity of raw material/components provided by the applicant/ licensee shall not be accepted in general. However, in specific cases where acceptance of Test Certificates has been permitted by CMD, test certificate shall be from a BIS recognized Lab or a NABL Accredited Lab. Relaxation for acceptance of test certificate of raw materials from a reputed manufacturer/ an organized buyer.

5.2 Grouping of samples for testing in the laboratory: Presently there is no specific guide line available for sampling purpose to cover entire range of ratings of electric radiators specified in Clause 5.2 of IS 302-2-30:1992 or IS 369:1992. Based on the earlier practice in CMD, the type / rating available with licensee / applicant, one sample of radiator having rating up to 1000 W and one sample between 1000W & 2000W shall be drawn for type tests at the time of inclusion / grant of licence to cover entire range of ratings from 500W to 2000WThe samples shall be submitted for tests in an independent approved laboratory (see appendix III ). The samples should preferably be drawn from the lot which is tested and test results of typical rating is already available.

5.3 Number of samples for testing in independent laboratory (after amendment 5) shall be 1 piece only for all safety requirement standards. However, a second piece of the same type / size / rating should also be drawn and sealed as counter sample. This sample might be used if the laboratory wanted it for endurance test. 2 pieces would be needed for compliance to IS 369:1992.

5.4 Schedule of Rates of Marking Fee – (refer clause2.5.4 of operating manual for product certification 2004)- The licence fee and rates of marking fee applicable to electric radiators is given in Appendix II of this manual.

5.5 STANDARD MARK 5.5.1 Standard Mark stands for quality of the product in conformance to the provisions

of the related Indian Standard. The mark carries an IS number as a distinguishing feature for identifying the product certified.

5.5.2 The Standard Mark consists of two components i.e. monogram and a reference to the relevant Indian Standard. The preferred sizes of the monogram, which should be used by the licensees, are given in Appendix VI. However, a photographic reduction or enlargement is permitted in specific cases.

5.5.3 The second component of the Standard Mark is the reference to the relevant Indian Standard, super scribed as the corresponding IS number above the monogram. Normally, the year mentioned in IS designation is not given in the Standard Mark. However, in the Standard Mark for safety of Household Electrical Appliance, the word "SAFETY" is mentioned at the top of the monogram and the relevant standard number is indicated at its bottom.

21

5.5.4 The Standard Mark in relation to each Indian Standard shall be gazetted by CMD.

At the time of grant of licence, copies of the Standard Mark shall be made available to the licensee by the BO.

5.5.5 Apart from the Standard Mark, all licensees shall mandatorily mark the licence No. ‘CM/L-……’ at a suitable place on the Standard Marked Product and/or its packaging and/or carton.

5.5.6 Method of Applying Standard Mark: As far as possible Standard Mark shall be applied on the rating plate of the radiator and may be printed on the packing of the product.

5.5.6.1 In order to avoid possibilities of fraudulent use, the Standard Mark shall be applied on the package in such a manner that it gets automatically destroyed when the consumer takes out the article from the package, wherever feasible.

5.5.7 The following are some of the recognized methods of applying Standard Mark on the product: a) Printing on a label; b) Printing on an anodized name-plate; c) Printed stickers, adhesive tapes, transfix labels, etc.; d) Stenciling with paint; e) Embossing or punching; f) Casting where no other specified system exists; g) Use of Hologram; h) Woven cloth labels in case of textile products like cotton vests; i) Metal tags; and j) As a part of the test certificate if individual items cannot be marked, like steel

products, emitters etc. k) Printing on products, like PVC cables etc.

5.5.8 Rubber stamping of the Standard Mark shall be avoided as far as possible. However the specific method to be adopted shall be defined in the STI.

5.6 Tests which may be done in out side laboratory: In case, some costly instruments are not available with the applicant for whom BIS had already decided that the applicant / licensee would get these tested in an outside laboratory, the same should are allowed by giving undertaking to BIS so that the compliance to STI is always maintained. These are: i) Resistance to tracking on insulated part of radiator holding the live terminals for external connection to supply cord; ii) Resistance to fire to check of insulated terminal holding the live part; iii) Resistance to rusting / finish test requirement.

5.7 Processing of new application: The processing of the application should be undertaken as per the procedures given in section II of Operating manual for product certification 2004 (5th revision) of BIS.

5.8 Approved Testing Laboratories: A list of laboratories where the samples for independent tasting may be sent is given in Appendix III.

5.9 Testing Charges: The approved charges for testing radiators in BIS and outside approved laboratories are given in Appendix IV.

5.10 Typical Endorsements of varieties of radiators in Licence: Some examples of endorsements of rating of radiators and its varieties in BIS licence are given in Appendix VII for guidance of BIS officers for adopting uniform practice.

22

5.11 Proforma for Test reports: The test results of tests carried out in the factory in the

presence of BIS officers should be given in the ‘TEST REPORT PROFORMA’ adopted by BIS central laboratory Sahibabad. The copy of the typical format is given in Appendix VIII.

5.12 Special guidelines on grouping for drawal of samples: The details are given in clause 5.2 of this section.

5.13 Other requirements: Any other point which is not covered in this section may be examined in Operating manual for product certification 2004 (5th Revision) prepared by Central Marks Department I (CMD I), BIS Head quarter , New Delhi-110002.

23

APPENDIX 1 (A)

(Clause 5.1.3.g) Document: STI/ 302-2-30/ 1

May 1995 SCHEME OF TESTING AND INSPECTION FOR CERTIFICATION Of

Safety Of Household And Similar Electrical Appliances- Part 2 Particular Requirements Section 30 Electric radiators

(ACCORDING TO IS 302-2-30:1992 incorporating amendments 1 to 5 )

1 LABORATORY: A laboratory shall be maintained, which shall be suitably equipped and staffed, where different tests shall be carried out in accordance the methods given in the specification.

1.1 All the testing apparatus shall be periodically checked and calibrated and records of such checks shall be maintained.

2. TEST RECORDS: All the records of tests and inspections shall be kept in suitable forms approved by BIS.

2.1 Copies of any records and / or charts that may be required by BIS shall be made available at any time on request.

2.2 It is recommended that, as far as possible, Statistical Quality Control (SQC) methods may be used for controlling the quality during production as envisaged in this scheme (See IS 397 Part I : 1972 ; IS- 397 (Part II) :1985 and IS-397 Part III : 1980).

2.3 In addition , effort should be made to gradually introduce a Quality Management System in accordance with the Quality System Models as per IS / ISO 9001 to the activities of the organization.

3. STANDARD MARK: The Standard Mark as given in column ( 1 ) of the First Schedule of the licence shall be applied on each Electric radiators in the form of transfix labels or anodized plate suitably fixed thereon, provided always that the electric radiators so marked conforms to every requirement of the specification.

4 OTHER MARKINGS: 4.1 In addition, the electric radiators shall be marked with the following information:

a) Manufacturer’s name, recognized trade mark, brand name and model or type reference, if any;

b) Rated voltage or voltage range in Volts ; c) Rated input in Watts or Kilowatts; d) Rated frequency in Hertz; e) symbol for nature of supply; f) Country of manufacture; and g) Identification in code or otherwise, to enable the date and lot of manufacture

to be traced back to the factory. NOTE. The rated input is the total input in the circuits that can be in operation

simultaneously.

24

4.2 An instruction sheet giving necessary instructions including precautions to be taken

for the proper use shall be provided with each electric radiator.

5. LEVELS OF CONTROL: The tests and inspection , as indicated in Table 1 attached and at the level of control specified therein, shall be carried out on the whole production of the factory covered by the licence and appropriate records and charts maintained in accordance with paragraph 2 above . On the basis of the tests and inspection results, decision regarding conformity or otherwise of a control unit with the requirements of the specification, shall be taken as given in Table 1. All the production which conforms to the Indian Standard and covered by the licence shall be marked with standard Mark of the Bureau.

5.1 For the purpose of scheme, all Electric radiators of one type and rating manufactured in a day shall constitute a control unit.

5.1.1 If the Electric radiators of more than one type and rating are manufactured on the same day, they shall constitute a separate control unit.

6. RAW MATERIALS / COMPONENTS: Raw materials / components used should conform to the relevant Indian Standard, wherever they exist. The raw material / components used may be either ISI marked or each consignment may be accompanied by test certificate showing its conformity to the relevant specification or firm may get each consignment tested in their laboratory or in an independent laboratory for ascertaining its conformity to the relevant specification. The relevant test records shall be maintained and made available at any time on request.

6.1 As and when the type of raw material / component is changed, samples shall be tested for all type tests and they shall pass before Marking of electric radiators made out of new material is commenced.

7 CONSTRUCTION: The construction of electric radiators shall conform to clause 22 of IS 302-2-30 :1992 which shall be adequately ensured during production process.

8 CONTROLS & CHECKS: In respect of all other clauses of the specification and at all stages of manufacture, the factory shall maintain appropriate control and checks to ensure that the electric radiators conform to various requirements of the specification.

9. REJECTION: A separate record shall be maintained giving information relating to the rejection of electric radiators which do not conform to the specification, and the method of their disposal. Such electric radiators shall not in any case, be stored together with those conforming to the requirements of the specification.

10. SAMPLES:

25

The licensee shall supply, free of charge, the samples required in accordance with Regulation 5 of the Bureau of Indian Standards (Certification) Regulations 1988 as subsequently amended, from his factory or godown. The samples of electric radiators so supplied would be returned to the licensee after the tests have been carried out . The transport charges shall be borne by the licensee. The Bureau shall pay for the samples taken from open market.

11. REPLACEMENT / REPAIR: Whenever a complaint is received soon after the electric radiators with Standard Mark have been purchased and used , and if there is adequate evidence that the Electric radiators have not been misused , defective Electric radiators or their component are replaced or repaired free of cost by the licensee in case the complaint is proved to be genuine and warranty period (where applicable) has not expired. The final authority to judge conformity of the Iron to the Indian Standard shall be with the Bureau.

12. STOPPAGE OF MARKING: The Marking of the electric radiators shall be stopped under intimation to the Bureau, if at any time, there is some difficulty in maintaining the conformity of the Electric radiators to the specification or the testing equipment goes out of order. The Marking may be resumed as soon as the defects are removed under intimation to BIS. The Marking of the electric radiators shall be immediately stopped, if directed to do so by the Bureau for any reason. The information regarding resumption of marking shall also be sent to the Bureau.

13 PRODUCTION DATA: The licensee shall maintain the production data as per enclosed Proforma -1, which may be authenticated by a chartered accountant or by giving affidavit (which may be required along with renewal application). The licensee shall send to the Bureau, as per the enclosed proforma -2 and Proforma -3, a statement of the quantity produced, Marked and exported by him, and the trade value thereof during the half year ending 30 June and 31 December. The statement is required to be forwarded to the Bureau on or before 31st day of July and January for the preceding half-year.

26

Document: STI/ 302-2-30 /1

May 1995

Scheme for testing and inspection for certification of Safety of household and similar electrical appliances

Part 2-particular requirements Section 30- electric radiators IS 302-2-30:1992 (read with 5 Amendments)

(Table 1 levels of control) (Para 5 of the Scheme of Testing and Inspection)

Test details Levels of Controls Clause

Requirement Test method No. of samples Lot size

Frequency Remarks

Clause reference (1) (2) (3) (4) (5) (6) (7) (8) 8 Protection against

electric shock 8 Is 302-2-30 :1992 & IS 302-1:1979

Each

electric radiator -- -- --

101.3 High voltage 13.3.2 IS 302-1:1979

-do- -- -- --

27 Provision for Earthing

27 Is 302-2-30 :1992 & IS 302-1:1979

do -- -- --

10 Input 10 -do- 10 Percent, Subject to a minimum of three and maximum thirteen radiators

One control unit

Every control unit

In case a sample fails, all the electric radiators in the control unit shall be tested and those not passing shall be rejected.

All the electric radiators produced subsequently shall be tested for these requirements till Thirteen (13)

consecutive

electric radiators pass. The original frequency may then be restored.

27

Document: STI/ 302-2-30 / 1

May 1995

Test details Levels of Controls Clause Requirement Test method No. of samples Lot

size Frequency Remarks

Clause

reference

(1) (2) (3) (4) (5) (6) (7) (8)

Document: STI/ 302-2-30 / 1

3 Electrical insulation and leakage current at operating temperature

13 Is 302-2-30 :1992 & IS 302-1:1979

10 Percent, Subject to a minimum of three and maximum thirteen radiators

One control unit

Every control unit



consecutive


15 Moisture resistance

15 -do- Two (2) One control unit

Every week for each type and rating

In case a sample fails in any of the requirements, the Marking of that type & rating of electric radiator shall be suspended. A thorough investigation of the cause of failure shall be made and defect rectified. The Marking and frequency shall only be resumed when five samples of that type and rating taken from improved production show conformity to these requirements.

28

May 1995

Test details Levels of Controls Clause Requirement Test method No. of samples Lot


Clause

reference

(1) (2) (3) (4) (5) (6) (7) (8)

16 Insulation resistance and electrical strength (after humidity treatment)

16 Is 302-2-30 :1992 & IS 302-1:1979

Two (2) One control unit



11 Temperature rise 11 -do- -do- -do- -do- -do- 12 Operation under

overload conditions

12 -do- -do- -do- Every month or after every 5000 units of radiators manufactured or whichever is earlier for each type and rating

-do-

19 Abnormal Operation

19 -do- -do- -do- -do- -do-

20 Stability & Mechanical hazards

20 -do- -do- -do- -do- -do-

21 Mechanical Strength

21 -do- -do- -do- -do- -do-

22 Construction 22 -do- -do- -do- -do- -do-

29

Document: STI/ 302-2-30 /1

May 1995

Clause Requirement Test method No. of samp les

Lot size

Freq ency

Remarks

Clause reference

(1) (2) (3) (4) (5) (6) (7) (8) 23 Internal Wiring 23 -do- Two (2) One

control unit

Every six month each type and rating


24 Components 24 -do- -do- -do- -do- -do-

25 Cord Grip& Cord guard

25 -do- -do- -do- -do- -do-

26 Terminals for external conductor

26 -do- -do- -do- -do- 26

28 Screws and connections

28 -do- -do- -do- -do- -do-

29 Creepage distance and clearances

29 -do- -do- -do- -do- -do-

30 Resistance to heat , fire, and tracking

30 -do- -do- -do- -do- -do-

31 Resistance to rusting

31 -do- -do- -do- -do- -do-

18 Endurance 18 Not applicable

-- -- -- --

PROFORMA 1

30

STATEMENT OF QUANTITY PRODUCED, MARKED AND EXPORTED DURING THE PERIOD (Clause 13 of STI)

FROM ----------------------- TO ---------------------------

LICENCE NO. CM/ L--------------------

NAME OF THE LICENSEE: ----------------------------------------------------------------------

PRODUCT: -------------------------------------------------------------------------------------------

1. TOTAL PRODUCTION: QUANTITY VALUE*

2. PRODUCTION COVERED WITH CERTIFICATION MARK

OF THE BUREAU: 3. PRODUCTION EXPORTED:

WITH CERTIFICATION MARK: WITHOUT CERTIFICATION MARK:

COUNTRY TO WHICH EXPORTED;


*f. o . b . value may be given

Date: Signature

31

PROFORMA—2

PRODUCTION RECORD (Clause 13 of STI)

Stock position Total production.

Opening Closing

Quantity dispatched

Date ISI Non-ISI (REJ).

ISI Non-ISI (REJ).

ISI Non-ISI (REJ).

ISI Non-ISI (REJ).

Total Bill no.

Remarks

Signature

Seal:

Date:

32

PROFORMA—3

PROFORMA FOR PRODUCTION DETAILS (Clause 13 of STI)

(Period covered by the report From-------------------------To------------------------)

Name of Licensee:-----------------------------------------------------------------------------

CM / L:------------------------------------------------------------------------------------------

Name of article(s):----------------------------------------- IS No.--------------------------

1. Total production of the article(s) licensed for certification Marking. -------------------------------------

1.1. Total production of the article(s) conforming to Indian Standard. -------------------------------------

2. Production covered with BIS certification Mark & its approximate value:

a) Quantity --------------------------------------

b) Value Rs. -------------------------------------

2.1 Calculation i\of Marking fee on Unit-rate basis: Marking fee per unit-----------

a) units -------------------------------------

b) Quantity covered with BIS Certification Mark --------------------------------------

a) Marking fee rounded off in whole rupees as obtained by applying unit rates given in (a) on quantities given in (b) : -------------------------------------

3. Quantity not covered with BIS Certification Mark, if any, and the reason for such non coverage: ---------------------------------------

(Signature) Seal

Date. Note: in case a clause is not applicable, suitable remarks may be given against it.

APPENDIX 1 (B)

33

Document: STI/ 369/ 7

October 1993 SCHEME OF TESTING AND INSPECTION FOR CERTIFICATION Of

Electric radiators (ACCORDING TO IS 369:1992 incorporating 2 amendment)

1 LABORATORY: A laboratory shall be maintained, which shall be suitably equipped and staffed, where different tests shall be carried out in accordance the methods given in the specification.

1.1 All the testing apparatus shall be periodically checked and calibrated and records of such checks shall be maintained.

2. TEST RECORDS: All the records of tests and inspections shall be kept in suitable forms approved by BIS.

2.1 Copies of any records and / or charts that may be required by BIS shall be made available at any time on request.

2.2 It is recommended that, as far as possible, Statistical Quality Control (SQC) methods may be used for controlling the quality during production as envisaged in this scheme (See IS 397 Part I : 1972 ; IS- 397 (Part II) :1985 and IS-397 Part III : 1980).

2.3 In addition , effort should be made to gradually introduce a Quality Management System in accordance with the Quality System Models as per IS / ISO 9001 to the activities of the organization.

3. STANDARD MARK: The Standard Mark as given in column ( 1 ) of the First Schedule of the licence shall be applied on each Electric radiators in the form of transfix labels or anodized plate suitably fixed thereon, provided always that the electric radiators so marked conforms to every requirement of the specification.

4 OTHER MARKINGS: 4.1 In addition, the electric radiators shall be marked with the following information:

a) Manufacturer’s name, recognized trade mark, brand name and model or type reference, if any;

b) Rated voltage or voltage range in Volts ; c) Rated input in Watts or Kilowatts; d) Rated frequency in Hertz; e) Symbol for nature of supply; f) Country of manufacture; and g) Identification in code or otherwise, to enable the date and lot of manufacture

to be traced back to the factory. NOTE. The rated input is the total input in the circuits that can be in operation

simultaneously.

34

4.2 An instruction sheet giving necessary instructions including precautions to be taken

for the proper use shall be provided with each electric radiator.

5. LEVELS OF CONTROL: The tests and inspection , as indicated in Table 1 attached and at the level of control specified therein, shall be carried out on the whole production of the factory covered by the licence and appropriate records and charts maintained in accordance with paragraph 2 above . On the basis of the tests and inspection results, decision regarding conformity or otherwise of a control unit with the requirements of the specification, shall be taken as given in Table 1. All the production which conforms to the Indian Standard and covered by the licence shall be marked with standard Mark of the Bureau.

5.1 For the purpose of scheme, all electric radiators of one type and rating manufactured in a day shall constitute a control unit.

5.1.1 If the electric radiators of more than one type and rating are manufactured on the same day, they shall constitute a separate control unit.

6. RAW MATERIALS / COMPONENTS: Raw materials / components used should conform to the relevant Indian Standard, wherever they exist. The raw material / components used may be either ISI marked or each consignment may be accompanied by test certificate showing its conformity to the relevant specification or firm may get each consignment tested in their laboratory or in an independent laboratory for ascertaining its conformity to the relevant specification. The relevant test records shall be maintained and made available at any time on request.

6.1 As and when the type of raw material / component is changed, samples shall be tested for all type tests and they shall pass before Marking of electric radiators made out of new material is commenced.

7 CONSTRUCTION: The construction of electric radiators shall conform to clause 22 of IS 302-2-30:1992 which shall be adequately ensured during production process.

8 CONTROLS & CHECKS: In respect of all other clauses of the specification and at all stages of manufacture, the factory shall maintain appropriate control and checks to ensure that the electric radiators conform to various requirements of the specification.

9. REJECTION: A separate record shall be maintained giving information relating to the rejection of electric radiators which do not conform to the specification, and the method of their disposal. Such electric radiators shall not in any case, be stored together with those conforming to the requirements of the specification.

10. SAMPLES:

35

The licensee shall supply, free of charge, the samples required in accordance with Regulation 5 of the Bureau of Indian Standards (Certification) Regulations 1988 as subsequently amended, from his factory or godown. The samples of electric radiators so supplied would be returned to the licensee after the tests have been carried out . The transport charges shall be borne by the licensee. The Bureau shall pay for the samples taken from open market.

11. REPLACEMENT / REPAIR: Whenever a complaint is received soon after the electric radiators with Standard Mark have been purchased and used , and if there is adequate evidence that the Electric radiators have not been misused , defective Electric radiators or their component are replaced or repaired free of cost by the licensee in case the complaint is proved to be genuine and warranty period (where applicable) has not expired. The final authority to judge conformity of the Iron to the Indian Standard shall be with the Bureau.

12. STOPPAGE OF MARKING: The Marking of the electric radiators shall be stopped under intimation to the Bureau, if at any time, there is some difficulty in maintaining the conformity of the Electric radiators to the specification or the testing equipment goes out of order. The Marking may be resumed as soon as the defects are removed under intimation to BIS. The Marking of the electric radiators shall be immediately stopped, if directed to do so by the Bureau for any reason. The information regarding resumption of marking shall also be sent to the Bureau.

13 PRODUCTION DATA: The licensee shall maintain the production data as per enclosed Proforma -1, which may be authenticated by a chartered accountant or by giving affidavit (which may be required along with renewal application). The licensee shall send to the Bureau, as per the enclosed proforma -2 and Proforma -3, a statement of the quantity produced, Marked and exported by him, and the trade value thereof during the half year ending 30 June and 31 December. The statement is required to be forwarded to the Bureau on or before 31st day of July and January for the preceding half-year.

36

Document: STI/ 369 / 7

October 1993

Scheme for testing and inspection for certification of Electric radiators

IS 369:1992 (incorporating 2 Amendments) (Table 1 levels of control)

(Para 5 of the Scheme of Testing and Inspection)


Requirement Test method No. of samples

Lot size

Frequency Remarks

Clause

reference

(1) (2) (3) (4) (5) (6) (7) (8)

9 Protection against electric shock 8

Is 302-2-30 :1992 & IS 302-1:1979

Each

electric radiator -- -- --

9 High voltage 13.3.2

IS 302-1:1979

-do- -- -- --

9 Provision for Earthing

27 Is 302-2-30 :1992 & IS 302-1:1979

do -- -- --

9 Input 10 -do- 10 Percent, Subject to a minimum of three and maximum thirteen radiators

One control unit

Every control unit



consecutive

electric radiators

pass. The original frequency may then be restored.

37


October 1993 Test details Levels of Controls Clause Requirement Test method No. of samples Lot


Clause

reference

(1) (2) (3) (4) (5) (6) (7) (8)

9 Electrical insulation and leakage current at operating temperature

13 Is 302-2-30 :1992 & IS 302-1:1979

10 Percent, Subject to a minimum of three and maximum thirteen radiators

One control unit

Every control unit



consecutive


9 Moisture resistance

15 -do- Two (2) One control unit



38


October 1993



Frequency Remarks

Clause

reference

(1) (2) (3) (4) (5) (6) (7) (8)

9 Insulation resistance and electrical strength (after humidity treatment)

16 IS 302-2-30 :1992 & IS 302-1:1979




11 Temperature rise 11 IS 369:1992 -do- -do- -do- -do- 9 Mechanical

Strength 21 IS 302-2-30

:1992 & IS 302-1:1979

-do- -do- -do- -do-

9 Operation under overload conditions

12 -do- -do- -do- Every month or after every 5000 units of radiators manufactured or whichever is earlier for each type and rating

-do-

39


October 1993



Frequency Remarks

Clause

reference

(1) (2) (3) (4) (5) (6) (7) (8)

12 Endurance 12 IS 369:1992 Two (2) One control unit

Every month or after every 5000 units of radiators manufactured or whichever is earlier for each type and rating


9 Abnormal Operation

19 IS 302-2-30 :1992 & IS 302-1:1979

-do- -do- -do- -do-

9 Stability & Mechanical hazards

20 -do- -do- -do- -do- -do-

9 Construction 22 & Appendix AA

-do- -do- -do- -do- -do-

9 Internal Wiring 23 -do- -do- -do- Every six months for each type & rating

-do-

9 Components 24 -do- -do- -do- -do- -do- 9 Cord Grip & Cord

guard 25 -do- -do- -do- -do- -do-

9 Terminals for external conductor

26 -do- -do- -do- -do- 26

40


October 1993

Clause

Requirement Test method No. of samp les

Lot size

Freq ency

Remarks

Clause

reference

(1) (2) (3) (4) (5) (6) (7) (8) 9 Screws and

connections 28 IS 302-2-30

:1992 & IS 302-1:1979


Every six month each type and rating


9 Creepage distance and clearances

29 -do- -do- -do- -do- -do-

9 Resistance to heat , fire, and tracking

30 -do- -do- -do- -do- -do-

13 Finish i) Resistance

to rusting

ii) External finish

13.2 13.1

IS 369:1992 -do-

-do- -do-

-do- -do-

-do- -do-

-do- -do-

41

PROFORMA 1

STATEMENT OF QUANTITY PRODUCED, MARKED AND EXPORTED DURING THE PERIOD (Clause 13 of STI) FROM ----------------------- TO ---------------------------

LICENCE NO. CM/ L--------------------

NAME OF THE LICENSEE: ----------------------------------------------------------------------

PRODUCT: -------------------------------------------------------------------------------------------

1. TOTAL PRODUCTION: QUANTITY VALUE*

2. PRODUCTION COVERED WITH CERTIFICATION MARK

OF THE BUREAU: 3. PRODUCTION EXPORTED:


COUNTRY TO WHICH EXPORTED;


*f. o . b . value may be given

Date: Signature

42

PROFORMA—2

PRODUCTION RECORD (Clause 13 of STI)

Stock position Total production.

Opening Closing

Quantity dispatched

Date ISI Non-ISI (REJ).

ISI Non-ISI (REJ).

ISI Non-ISI (REJ).

ISI Non-ISI (REJ).

Total Bill no.

Remarks

Signature

Seal:

Date:

43

PROFORMA—3

PROFORMA FOR PRODUCTION DETAILS (Clause 13 of STI)

(Period covered by the report From-------------------------To------------------------)

Name of Licensee:-----------------------------------------------------------------------------

CM / L:------------------------------------------------------------------------------------------

Name of article(s):----------------------------------------- IS No.--------------------------

1. Total production of the article(s) licensed for certification Marking. -------------------------------------

1.1Total production of the article(s) conforming to Indian Standard. -------------------------------------

2. Production covered with BIS certification Mark & its approximate value:

a) Quantity --------------------------------------

b) Value Rs. -------------------------------------

2.1Calculation i\of Marking fee on Unit-rate basis: Marking fee per unit-----------

a) units -------------------------------------

b) Quantity covered with BIS Certification Mark --------------------------------------

b) Marking fee rounded off in whole rupees as obtained by applying unit rates given in (a) on quantities given in (b) : -------------------------------------

3. Quantity not covered with BIS Certification Mark, if any, and the reason for such non coverage: ---------------------------------------

(Signature) Seal

Date.

44

APPENDIX II

A-2 FEES & MARKING FEE SCHEDULE (Clause 5.1.3.g) A-2.1 The charges * payable by Manufacturer to BIS at different stages of

certification process are given below:

S.No. Stage of payment Amount Type 1

i) Application fee Rs. 1000 (non-refundable)

2 ii) Application fee for renewal of Licence

Rs. 500 -

3 iii) Testing charges for independent testing

variable -

4 iv) Inspection charges

Rs. 4000 per day for the first day and Rs. 3000 for subsequent days.

-

5 v) Marking fee Variable (see table below) - 6 vi) Annual licence fee Rs. 1000 -

I S 302-2-30: 1992 Safety of household and similar electrical appliances: Part 2 Particular requirements Section 30 Electric Radiators

Marking fee Slab 1 Slab 2 Slab 3 LS SS Rate Quantit

y Rate Quantit

y Rate Quanti

ty

Unit

Rs. Rs. Rs. Rs. Rs.

Enforcement date

Remarks

1 piece

23200 17200 1.30 All 0 0 2006-07-06 Composite with IS 366 : 1985

*Add service tax and education cess @ 12.36 % to all the charges given above. The payment should be made by Pay Order/Demand Draft in favour of Bureau Of Indian Standards.

45

APPENDIX III

(Clause 5.1.3.g) and Clause 5.8 of section V ) A-3 LIST OF LABORATORIES WHERE THE SAMPLES CAN BE

TESTED A-3.1 The following laboratories are approved by BIS for testing the samples

of electric radiators:

I S 302-2-30: 1992 Safety of household and similar electrical appliances: Part 2 Particular requirements Section 30 Electric Radiators

Name of laboratory City BIS central laboratory

Sahibabd BIS NRO laboratory Mohali National Test House Kolkata Regional Testing Center (Northern Region)

New Delhi

IS 369 :1992 Electric Radiators

Name of laboratory City BIS Central laboratory Sahibabd BIS NRO laboratory Mohali National Test House Kolkata Regional Testing Center (Northern

Region) New Delhi

Central Electrical Testing Laboratory

Kakkalur (TN)

Instrument Design & Development facilities Center

Ambala Cantt

46

APPENDIX IV

(Clause 5.9 of section IV-1) A-4 TESTING CHARGES

BIS CENTRAL LABORATORY (Q.A. Department) Our Ref: CL/QA/14:0 2001-09-18

A-4.1 TESTING CHARGES FOR IS: 302-2-30:1992 FOR SAFETY OF ELECTRIC RADIATOR

----------------------------------------------------------- SL.NO. CHARACTERISTICS CLAUSE NO. MAN-HOURS ----------------------------------------------------------- 1. Protection against 9 1

electric shock 2. Input 10 1 3. Temperature rise 11 4 4. Electrical insulation 13 3

and leakage current at operating temperature

5. Moisture resistance 15 3 6. Abnormal operation 19 2 7. Stability and mechanical 20 1

hazards 8. Mechanical Strength 21 1 9. Construction & Test on guard 22 2 10. Internal wiring 23 1 11. Components 24 1 12. Supply and connections

Flexible cable & cord 25 1 13. Cord grip and cord guard 1 14. Earthing connections 27 1 15. Screws and Connections 28 1 16. Creepage and Clearance 29 1 17. Resistance to heat, fire & 30 2

Tracking 18. Resistance to rusting 31 1

Preparation of test report 2 TOTAL TIME 28 man hours

Electricity Consumption : i) For upto 1kw 105 units @ Rs.4 per unit : Rs.420.00 ii) For upto 2kw 210 units @ Rs.4 per unit : Rs.840.00 Testing charges per man hour Rs. 75.00 Hence complete testing charges for the product are : i) Radiators upto 1 Kw : Rs.2520.00/- ii) Radiators 1.5 & 2Kw : Rs.2940.00/- DG may please approve. (V.K. Sethi) TS (QA)/D&H/(QA)/DDGL /ADGT /DG

47

BIS CENTRAL LABORATORY

(Clause 5.9 of section IV-1) Our Ref: CL/QA/14:0 2001-06-26

A-4.2 TESTING CHARGES FOR IS 369:1992 FOR SAFETY AND PERFORMANCE OF ELECTRIC RADIATORS

----------------------------------------------------------- SL.NO. CHARACTERISTICS CLAUSE NO. MAN-HOURS 1. Protection against 9 1

electric shock 2. Input 10 1 3. Temperature rise 11 4 4. Electric insulation and 13 1

leakage current 5. Moisture resistance,

insulation 15 & 16 3 Resistance and electric strength after humidity

6. Endurance 18 8 7. Abnormal operation 19 2 8. Stability and mechanical hazards 20 1 9. Mechanical strength 21 1 10. Construction and test on guard 22 2 11. Internal wiring 23 1 12. Components 24 1 13. Supply and connections 25 1 14 Cord grip and cord guard 25 1 15. Earthing connections 27 1 16. Screws and connections 28 1 17. Creepage and Clearance 29 1 18. Resistance to heat and fire 30 2 19. Resistance to rusting 31 1 20. Finish 13 1 21. Dimensions 10 1 (TEST DELETED NOW)& PREPARATION OF TEST REPORT 2 TOTAL TIME 38 man hours Electricity Consumed : i) Upto 1 kw 160 units @ Rs.4 per unit: Rs.640.00 ii) For 1.5 kw & 2.0 kw260 units @ Rs.4 per unit: Rs.1040.00. ------------------------------------------------------Testing

charges per man hour are Rs. 75.00 Hence complete testing charges for the product are as follows

:i) For upto and including 1kw: Rs.3490.00, ii) For 1.5 & 2 kw : Rs.3890.00

DG may please approve. (V.K. Sethi) TS (QA)

D&H (QA)/DDGL/ADGT/DG & CMD1 may review

48

A-4.3 Testing charges in other approved laboratories

(Clause 5.9 of section IV-1)

A-4.3.1 I S 302-2-30: 1992 Safety of household and similar electrical appliances: Part 2 Particular requirements

Section 30 Electric Radiators

Sl.No. Name of laboratory City Testing charges (Rs.)

1 BIS central laboratory Sahibabd See BIS charges 2 BIS NRO laboratory Mohali -do- 3 National Test House Kolkata 10,000/- 4 Regional Testing Center (Northern

Region) New Delhi 7000/-

A-4.3.2 IS 369:1992 Electric Radiators

Sl. No. Name of laboratory City Testing charges (Rs.)

1 BIS Central laboratory Sahibabd See BIS charges 2 BIS NRO laboratory Mohali -do- 4 National Test House Kolkata 5 Regional Testing Center

(Northern Region) New Delhi 7000/-

6 Central Electrical Testing Laboratory

Kakkalur (TN)

2000/- (1KW: Routine tests) 5200/- for Acceptance tests Type tests NA

49

APPENDIX V

(Clause 4.1.7 of section IV-1)

A-5 LOT INSPECTION SAMPLING PLAN, IF APPLICABLE

A-5.1 The purchaser of larger quantities of electric radiators may carry out checks of quality, under agreement of purchase, and resort to lot inspection and carry the acceptance tests given in IS 302-2-30:1992 or IS 369:1992 before dispatch of finished product from the factory.

A-5.2 The list of acceptance tests is given in clause 101.2 of IS 302-2-30:1992 and clause 14.2 of IS 369:1992.

A-5.3 The sample size and criteria of conformity for different lot sizes is given in Table 3 of Appendix B of IS 302-1-1979 which is applicable to all house hold and similar electrical appliances. .

50

APPENDIX VI

(Section V, Clause 5.5)

A-6 GAZETTED STANDARD MARK(S)

51

APPENDIX VII

(Clause 5.10 of section V) A-7 TYPICAL ENDORSEMENTS OF PRODUCT VARIETIES IN

LICENCE DOCUMENT

A-7.1 The typical examples of endorsing the recommendations for grant of licence on the red form or addition of varieties are given for guidance of BIS officers, which would be used in normal cases.

The manufacturers may offer larger number of varieties / ratings of the radiators for coverage in the licence. See cases for endorsements in grant of licence as follows:.

.

A-7.1.1 IS: 302-2-30 (1992) Safety of Household And Similar Electrical Appliances-Part 2 Particular Requirements Section 30- Electric Radiator

Type / Size / Grade / Variety:

Electric radiators; ------ (1) ----- KW, ------- (230) ---- V ac, 50 Hz, ----- (2) --- KW, -- (230) --- V ac, 50 Hz,

A-7.1.2 IS 369: 1992 Electric radiators

Type / Size / Grade / Variety:

Electric radiators; ---- (1000 to 2000) --- Watt, -------- (230) --- V ac, 50 Hz

52

APPENDIX VIII

(Clause 5.12 of section V ) A-9.0 SPECIAL GUIDELINES A-9.1 There are different shapes of radiators available for use. These are horizontal shape

with broad base and vertical shape with smaller and heavy base. A-9.2 The heating element(s) may be single or double depending on the rating of

radiators. The power input of radiators shall be one amongst the ratings 500; 750; 1000; 1500; 2000 Watt at rated voltage. The radiators may have duel ratings with control switch.

A-9.3 Grouping of samples for testing in the laboratory: Presently there is no specific guide line available for sampling purpose to cover entire range of ratings of electric radiators specified in Clause 5.2 of IS 302-2-30:1992 or IS 369:1992. Based on the earlier practice in CMD, the type / rating available with licensee / applicant, one sample of radiator having rating up to 1000 W and one sample between 100W & 2000W shall be drawn for type tests at the time of inclusion / grant of licence to cover entire range of ratings from 500W to 2000WThe samples shall be submitted for tests in an independent approved laboratory (see appendix III ). The samples should preferably be drawn from the lot which is tested and test result of typical rating is already available. If the radiators of single rating only are offered for type tests then the single rating should be considered for grant of licence.

A-9.4 Sample size: One piece of radiator for complete tests for IS 302-2-30:1992 and two pieces of radiators for IS 369:1992 are sufficient for all type tests.

A-9.4 Testing in the factory: To ensure safety from electric shock by radiators, it is important to check health of electrical insulations at the time of its assembly. The few tests which take little time but reveal the quality of assembly should be witnessed in the factory. Some typical tests ( 4 tests )which may be witnessed in the factory are: i) Protection against electric shock, test with standard test fingers & test probe

(Clause 8 0f IS 302-1:1970) ii) High voltage test (Clause 101.3 of IS 302-2-30:1992), iii) Power input at rated voltage and application of limits for conformity (Clause

10 of IS 302-2-30:1992), iii) Leakage current at operating temperature (Clause 13 of IS 302-2-30:1992).

A-9.5 The samples drawn for testing in independent laboratory should be sealed in accordance with BIS operating manual for product certification 2004.

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