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है”ह”ह

IS 9385-5 (1983): High voltage fuses, Part 5: Types anddimensions of fuse-links for current limiting fuses [ETD39: Fuses]

IS:9385(Part5)-1983 ( Reaffirmed 1995 )

Indian Standard

SPECIFIC_ATION FOR HIGH VOLTAGE FUSES

PART 5 TYPES AND DIMENSIONS OF FUSE-LINKS FOR CURRENT-UMITING FUSES

( First Reprint FEBRUARY 1998 )

UDC 621.316.923.027.3 : 006.78

0 Copyright 1983

BUREAU OF INDIAN STANDARDS MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG

NEW DELHI 110002

Gr2 Sepember 1983 *

IS : 9385 ( Part 5 ) - 1983

Indian Standard SPECIFICATION FOR

HIGH VOLTAGE FUSES

PART 5 TYPES AND DIMENSIONS OF FUSE-LINKS FOR CURRENT-LIMITING FUSES 5.

High Voltage Switchgear and Controlgear Sectional Committee, ETDC 58

Chairman

SHRI H. M. PAX

Members

Representing

The Ahmedabad Electricity Co Ltd, Ahmadabad

SHRI M. B. BAEULKAR (Aftemote to Shri H. M. Pai )

SHRI R. CHANDRAMOULI Tata Hydro-Electric Power Supply Co Ltd, Bombay SIT C. BALIQA ( Alternate )

CHIEF ENOINEER Calcutta Electric Supply Corporation Ltd, Calcutta SHRI T. K. GHOSE ( Alternate )

DIRECTOR Central Power Research Institute, Bangalore JOINT DIRECTOR, STDS ( Alternate I ) SENIOR DEPUTY DIRECTOR ( Alternate II )

DIRECTOR, SUB-STATION DIRECTO- Central Electricity Authority, New Delhi RATE

DEPUTY DIRECTOR, SUB- STATION ( Alternate )

SHRI G. L. DUA Rural Electrification Corporation Ltd, New Delhi SHRI S. C. KHURANA ( Altcrnntc )

SH~I B. V. ESWAR ASEA, Nasik SHRI S. SUBEA~ANIAN ( Alternate )

SHRI K. L. GARQ Directorate General of Supplies and Disposals, New Delhi

SEW R. V. NARAYAN~N ( A&ante ) SHRI B. N. GBOSH Bharat Heavy Electricals Ltd, ( R&D ) Unit, Bhopal

SHRI D. K. SINGLE ( Alternate I ) SHRI A. RAJA RAO ( Altcrnafe II )

SRRI Y. R. GODSE Bombay Electric Supply and Transport Undertaking, Bombay

SRRI D. SWA~NATHAN ( Akmatc )

( Continusd on pate L 1

@ Copyright 1983 BUREAU OF INDIAN STANDARDS

This publication is protected under the Indian Copvri& Act ( XIV of 1957 ) and reproduction in whole or in part by any means except with written permission of the publisher rhall be deemed to be an infringement of copyright under the said Acct.

IS : 9385 ( Part 5 ) - 1983

( co?:tinued from pap 1 )

Mmbers RepreWhg

SJIRI Jnvasr N. GURJAR Kirloskar-Asea Ltd, Bangalore SIIHI 1’. D. JAHAOIRI~AR Maharashtra State Electricity Board, Bombay SHRI JA~II:FL) AXMEI) NGEF Ltd, Bangalore

S;far K. P. Sait.~~ri~ ( Afternnte ) SIIRI P. M. JOSEPH Aluminium Industries Ltd, Kundara

Srrxr C. M. A. NAYAR ( Alternate ) SHRI G. K. KHXMANI Central Public Works Department, New Delhi

Suftvf~:Yorf 0~ Worrrts III ( Alternafe ) SHRI B. N. KrsffonH Crompton Greaves Ltd, Bombay

SHRI A. N. VXNUGOPAL ( Alternate ) SHIU V. S. MAXI Hindustan Brown Boveri Ltd, Bombay

SHRI S. R. POTNIS ( Alternate ) SHRI S. G. MENON Tata Consulting Engineers, Bombay

Srfcr C. S. KHXAR ( Alternate ) SHRI S. K. MURHERJEH National Test House, Calcutta

SHRI P. C. PRA~HAN ( Alternate ) SHRT B. S. NARASIMAHAN Mysore Electrical Industries, Bangalore

SHRI R. SATYANARAYANA SIIARMA ( Aflernate )

Sfrnr .J. S. N*:f:r Jyoti Limited, Vadodara SHRI R. iM. NAN~VATI ( Alternate )

SHRT S. G. Nexe Siemens India Ltd, Bombay SHRI T. C. NEEL.AKANTAN ( Alternate )

SHRI A. S PIN1.o Delhi Electric Supply Undertaking, New Delhi SHRI 0. P. ANAND ( Alternate )

THIRU T. E. B. SAMUEL Tamil Nadu Electricity Board, Madras TF~IRU T. SHE~IBAIZA~A JAN ( Alternate )

REPRESENTATIVE Indian Institute of Technology, New Delhi REPRESENTATIVE Research, Design & Standards Organization,

Lucknow SRRI S. P. SACRDEV, Director General, IS1 ( Ex-o#cio Member )

Director ( Elec tech )

Secretary

SHRI K. GANESH Assistant Director ( Elec tech ), IS1

IS : 9385 ( Part 5 ) - 1983

Indian Standard

SPECIFICATION FOR HIGH VOLTAGE FUSES

PART 5 TYPES AND DIMENSIONS OF FUSE-LINKS FOR CURRENT-LIMITING FUSES

0. FOREWORD

0.1 This Indian Standard ( Part 5 ) was adopted by the Indian Standards Institution on 25 *July 1983, after the draft finalized by the High Voltage Switchgear and Controlgear Sectional Committee had been approved by the Electrotechnical Division .Council.

0.2 This standard is one among the series of standards intended to cover the various aspects of fuses intended for voltages above 1 000 V. The other parts in the series are:

Part 1 Part 2 Part 3 Part 4

Current-limiting fuses Explusion fuses and similar fuses Application guide for high voltage fuses Determination of short-circuit power factor for testing of high voltage fuses

0.3 Requirements and tests for high voltage fuses of the current-limiting type are covered comprehensively in IS : 9385 ( Part 1 )-1979*. This standard ( Part 5 ) ia intended to cover types and tlimensions of fuse- links for current-limiting fuses aimed as the first step towards variety reduction and dimensional interchangeability.

0.4 As it was attempted in the area of low voltage HBC fuses in the preliminary stages, it has been possible at the IEC level to collect and classify only the types of dimensions officially specified on the various existing national standards. The contents of this standard ( Part 5 ) therefore closely follow those in 1EC Pub 282.1A ( 1978 ), .‘Types and dimensions of current-limiting fuse-links specified in existing national standards’, first supplement to Publication 282-l( 1974 ) ‘High-voltage fuses: Part 1 Current-limiting fuses’, published by the International Eiectrotechnical Commission, in order to keep the Indian industry

*Specification for high voltage,fuses: Part 1 Current limiting fuses.

3

IS : 9385 ( Part 5 ) - 1983

informed of efforts devoted to standardization of dimensions of high voltage fuse-links as well as to encourage them to achieve a reduction in the number of types. As soon as it is possible to achieve dimensional standardization on a world-wide basis, efforts would be made to review the contents of this standard.

0.5 This standard corresponds appreciably with the IEC Publication referred to in 0.4 and there are no major differences.

0.6 For the purpose of deciding whether a particular requirement of this standard is complied with, the final value, observed or calculated, expressing the result of a test, shall be rounded off in accordance with IS : z-1960*. The number of significant places retained in the rounded off value should be the same as that of the specified value in this standard.

1. SCOPE

1.1 This standard covers types and dimensions of fuse-links for current- limiting fuses.

1.2 In respect of requirements other than dimensions, the provisions of IS : 9385 ( Part 1 )-1979t shall apply.

2. %YPES AND DIMENSIONS

2.1 Three types of fuse-links, I, II and III are defined in this standard according to the dimensions shown in the data sheets I, II and III.

*Rules for rounding off numerical values ( r&& ). tspecification for high voltage fuaa: Part 1 Current lining furea.

4

ISr93W(PartS)-19S5

'DATA SHEET I FUSE-LINKS FOR CURRENT-LIMITING Fums-TYPE I

All dimensions in millimetres.

64 B D-01

45 f 1 33+2 0 50 88 192

292 367 442 537

55 f 0.5 35 f 1 60 80 450

NOTE - The striker or indiotor, if any, shall be on the centre-line of the fuss- link.

5

IS t 9385 ( Part 5 ) - 1983

DATA SHEET II FUSE-LINKS FOR CURRENT-LIMITING FUSES-TYPE II

All dimensions in millimetres.

4 A f 0.5 B+ l3 0 4 G 4 G 0-i (Max) (Max)

25’4 15 28 28 145 197 256

50.8 38 54 55.6 275 361 567 916

63.5 38 67 68 256 361

76.2 38 80 81 256 361 567 916

NOTE - The striker or indicator, if any, shall be on the centre-line of the fuse- link.

6

IS : 9385 ( Part 5 ) - 1983

DATA SHEET III FUSE-LINKS FOR CURRENT-LIMITING FUSES-TYPE III

All dimensions in millimetres.

dA dC, 4Cs E F_; H G Tags (Max) (Max) (Max) (Ma4

80 80 81 235 259 200 42 f 2 Fig. Fig.

A 305 340 264. 42 f 2 B 419 464 369 41 f 2 Fig. D

82 82 91 23.5 277 267 309 305 347

320 362 400 442 419 464 476 518

553 595

205 1 %Z ’

286

I

Not 360 ) less 375 1 than 436 I W,P

517J

Fig. A Fig. C

B and C Fig. Fig. C

C Fig. D Fig.

Fig. C Fig. B

7

* .

One or two round or elongated holes are provided on the fuse-link tags according to the following:

All dimensions in millimetres.

FIO. A, B, C & D FOR DATA SHEET III

NOTE - The striker or indicator, if any, shall be on the centre-line of the fuse-liik ( on the right-hand side of the sketches ).

BUREAU OF INDIAN STANDARDS

Headuuarters Manak Bhavan, 9 Bahadur Shah Zafar Marg, NEW DELHI 110002 Teleohones: 323 0131,323 3375.323 9402 Fax 191 11 3234062, 91 11 3239399, 91 11 3239382

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*Sales Office is at 5 Chowringhee Approach, P.O. Princep Street, CALCUTTA 700072

TSales Office is at Novetty Chambers, Grant Road, MUMBAI 400007

*Sales Office is at ‘F’ Block, Unity Building, Narashimaraja Square, BANGALORE 860002

271085

309 65 28

222 39 71

Reprography Unit, BIS, New Delhi, India

fcd: ( Reaffirmed 2001 )