Disclosure to Promote the Right To Information

Whereas the Parliament of India has set out to provide a practical regime of right to information for citizens to secure access to information under the control of public authorities, in order to promote transparency and accountability in the working of every public authority, and whereas the attached publication of the Bureau of Indian Standards is of particular interest to the public, particularly disadvantaged communities and those engaged in the pursuit of education and knowledge, the attached public safety standard is made available to promote the timely dissemination of this information in an accurate manner to the public.

इंटरनेट मानक

“!ान $ एक न' भारत का +नम-ण”Satyanarayan Gangaram Pitroda

“Invent a New India Using Knowledge”

“प0रा1 को छोड न' 5 तरफ”Jawaharlal Nehru

“Step Out From the Old to the New”

“जान1 का अ+धकार, जी1 का अ+धकार”Mazdoor Kisan Shakti Sangathan

“The Right to Information, The Right to Live”

“!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता है”Bhartṛhari—Nītiśatakam

“Knowledge is such a treasure which cannot be stolen”

“Invent a New India Using Knowledge”

है”ह”ह

IS 13778-6 (2011): Winding Wires - Test Methods, Part 6:Thermal properties [ETD 33: Winding Wire]

IS 13778 (Part 6) : 2011

IEC 60851-6 : 1996

Hkkjrh; ekud

os"Vu — ijh{k.k i)fr;k¡Hkkx 6 FkeZy xq.k/keZHkkx 6 FkeZy xq.k/keZHkkx 6 FkeZy xq.k/keZHkkx 6 FkeZy xq.k/keZHkkx 6 FkeZy xq.k/keZ

¼ igyk iqujh{k.k ½

Indian Standard

WINDING WIRES — TEST METHODS

PART 6 THERMAL PROPERTIES

( First Revision )

ICS 29.060.10

© BIS 2011

B U R E A U O F I N D I A N S T A N D A R D SMANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG

NEW DELHI 110002

November 2011 Price Group 5

Winding Wires Sectional Committee, ETD 33

NATIONAL FOREWORD

This Indian Standard (Part 6) (First Revision) which is identical with IEC 60851-6 : 1996 ‘Winding wires —Test methods — Part 6: Thermal properties’ issued by the International Electrotechnical Commission (IEC)was adopted by the Bureau of Indian Standards on the recommendation of the Winding Wires SectionalCommittee and approval of the Electrotechnical Division Council.

This standard was originally published in 1993. This revision has been undertaken with a view to bring it inline with the latest version of IEC 60851-6.

The text of IEC Standard has been approved as suitable for publication as an Indian Standard withoutdeviations. Certain conventions are, however, not identical to those used in Indian Standards. Attention isparticularly drawn to the following:

a) Wherever the words ‘International Standard’ appear referring to this standard, they should be read as‘Indian Standard’.

b) Comma (,) has been used as a decimal marker while in Indian Standards, the current practice is touse a point (.) as the decimal marker.

In this adopted standard, reference appears to certain International Standards for which Indian Standardsalso exist. The corresponding Indian Standards which are to be substituted in their respective places arelisted below along with their degree of equivalence for the editions indicated:

International Standard

IEC 60172 : 1987 Test procedure forthe determination of the temperatureindex of enamelled winding wires

IEC 60851-1 : 996 Winding wires —Test methods — Part 1: General

IEC 60851-3 : 1996 Winding wires —Test methods — Part 3: Mechanicalproperties

IEC 60851-5 : 1996 Winding wires —Test methods — Part 5: Electricalproperties

Corresponding Indian Standard

IS 5825 : 1993 Test procedure for thedetermination of the temperature indexof enamelled winding wires (first

revision)

IS 13778 (Part 1) : 2011 Winding wires— Test methods: Part 1 General (first

revision)

IS 13778 (Part 3) : 1993 Methods oftest for winding wires: Par t 3Mechanical properties

IS 13778 (Part 5) : 1993 Methods oftest for winding wires: Par t 5Electrical properties

Degree of Equivalence

Identical

do

Technically Equivalent

do

Amendment No. 1 and 2 to the above International Standard has been given at the end of this publication.

Only English language text has been retained while adopting it in this Indian Standard, and as such thepage numbers given here are not the same as in the IEC publication.

For the purpose of deciding whether a particular requirement of this standard is complied with, the finalvalue, observed or calculated, expressing the result of a test, shall be rounded off in accordance withIS 2 : 1960 ‘Rules for rounding off numerical values (revised)’. The number of significant places retainedin the rounded off value should be the same as that of the specified value in this standard.

Indian Standard

WINDING WIRES — TEST METHODSPART 6 THERMAL PROPERTIES

( First Revision )

1

IS 13778 (Part 6) : 2011IEC 60851-6 : 1996

2

IS 13778 (Part 6) : 2011IEC 60851-6 : 1996

3

IS 13778 (Part 6) : 2011IEC 60851-6 : 1996

4

IS 13778 (Part 6) : 2011IEC 60851-6 : 1996

5

IS 13778 (Part 6) : 2011IEC 60851-6 : 1996

6

IS 13778 (Part 6) : 2011IEC 60851-6 : 1996

7

IS 13778 (Part 6) : 2011IEC 60851-6 : 1996

8

IS 13778 (Part 6) : 2011IEC 60851-6 : 1996

9

IS 13778 (Part 6) : 2011IEC 60851-6 : 1996

10

IS 13778 (Part 6) : 2011IEC 60851-6 : 1996

Bureau of Indian Standards

BIS is a statutory institution established under the Bureau of Indian Standards Act, 1986 to promoteharmonious development of the activities of standardization, marking and quality certification ofgoods and attending to connected matters in the country.

Copyright

BIS has the copyright of all its publications. No part of the these publications may be reproduced inany form without the prior permission in writing of BIS. This does not preclude the free use, in thecourse of implementing the standard, of necessary details, such as symbols and sizes, type or gradedesignations. Enquiries relating to copyright be addressed to the Director (Publications), BIS.

Review of Indian Standards

Amendments are issued to standards as the need arises on the basis of comments. Standards arealso reviewed periodically; a standard alongwith amendments is reaffirmed when such review indicatesthat no changes are needed; if the review indicates that changes are needed, it is taken up for revision.Users of Indian Standards should ascertain that they are in possession of the latest amendments oredition by referring to the latest issue of ‘BIS Catalogue’ and ‘Standards: Monthly Additions’.

This Indian Standard has been developed from Doc No.: ETD 33 (6069).

Amendments Issued Since Publication

Amend No. Date of Issue Text Affected

BUREAU OF INDIAN STANDARDS

Headquarters:

Manak Bhavan, 9 Bahadur Shah Zafar Marg, New Delhi 110002Telephones: 2323 0131, 2323 3375, 2323 9402 Website: www.bis.org.in

Regional Offices: Telephones

Central : Manak Bhavan, 9 Bahadur Shah Zafar Marg 2323 7617NEW DELHI 110002 2323 3841

Eastern : 1/14 C.I.T. Scheme VII M, V.I.P. Road, Kankurgachi 2337 8499, 2337 8561KOLKATA 700054 2337 8626, 2337 9120

Northern : SCO 335-336, Sector 34-A, CHANDIGARH 160022 260 3843260 9285

Southern : C.I.T. Campus, IV Cross Road, CHENNAI 600113 2254 1216, 2254 14422254 2519, 2254 2315

Western : Manakalaya, E9 MIDC, Marol, Andheri (East) 2832 9295, 2832 7858MUMBAI 400093 2832 7891, 2832 7892

Branches : AHMEDABAD. BANGALORE. BHOPAL. BHUBANESHWAR. COIMBATORE. DEHRADUN.FARIDABAD. GHAZIABAD. GUWAHATI. HYDERABAD. JAIPUR. KANPUR. LUCKNOW.NAGPUR. PARWANOO. PATNA. PUNE. RAJKOT. THIRUVANANTHAPURAM.VISAKHAPATNAM.

Published by BIS, New Delhi