Revised Standard from Last Update.

NATIONAL FOREWORD

This Indian Standard (First Revision) is identical with IEC 60079-25 : 2020 ‘Explosive atmospheres: Part 25 intrinsically safe electrical systems’ issued by the International Electrotechnical Commission (IEC) was adopted by the Bureau of Indian Standards on the recommendation of the Electrical Apparatus for Explosive Atmosphere Sectional Committee and approval of the Electrotechnical Division Council.

This Standard covers the requirement of ‘Explosive atmospheres intrinsically safe electrical systems’ which was previously covered in IS/IEC 60079-25 : 2010.

This revision has been undertaken to align with the latest version of IEC 60079-25 : 2020.