Revised Standard from Last Update.

NATIONAL FOREWORD

This Indian Standard (Part 0/Sec 4) (Second Revision) which is identical with IEC 60317-0-4 : 2015 ‘Specifications for particular types of winding wires - Part 0-4: General requirements - Glass-fibre wound, resin or varnish impregnated, bare or enamelled rectangular copper wire’ issued by the International Electrotechnical Commission (IEC) was adopted by the Bureau of Indian Standards on recommendation of the Winding Wires Sectional Committee and approval of the Electrotechnical Division Council.

This standard was originally published in 1993 and subsequently revised in 2011. First revision was identical with IEC 60317-0-4 : 2006 ‘Specifications for particular types of winding wires - Part 0-4: General requirements - Glass-fibre wound, resin or varnish impregnated, bare or enamelled rectangular copper wire’, issued by the International Electrotechnical Commission. The second revision of this standard has been undertaken to align it with the latest version of IEC 60317-0-4 : 2015

The major changes in this revision are as follows:

a) addition of dimensional requirements for grade 1 enamelled wire in Table 4; and

b) addition of dielectric breakdown requirements for grade 1 enamelled wire in Table 7.

The text of IEC Standard has been approved as suitable for publication as an Indian Standard without deviations. Certain terminologies and conventions are, however, not identical to those used in Indian Standards. Attention is particularly 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 to use a point (.) as the decimal marker.