Revised Standard from Last Update.

NATIONAL FOREWORD

This Indian Standard (First Revision) which is identical with IEC 61057 : 2017 ‘Live working - Insulating aerial devices for mounting on a chassis’ issued by the International Electrotechnical Commission (IEC) was adopted by the Bureau of Indian Standards on recommendation of the Tools and Equipment for Live Working Sectional Committee and approval of the Electrotechnical Division Council.

This standard was first published in 2001 which was identical with IEC 61057 : 1991. The first revision of this standard has been undertaken to align it with the latest Version of IEC 61057 : 2017.