New Standard from Last Update.

NATIONAL FOREWORD

This Indian Standard which is identical to IEC 61211 : 2004 ‘Insulators of ceramic material or glass for overhead lines with a nominal voltage greater than 1 000 V - Impulse puncture testing in air’ issued by the International Electro technical Commission (IEC) was adopted by the Bureau of Indian Standards on the recommendation of the Electrical Insulators and Accessories Sectional Committee and approval of the Electro technical Division Council