ICS 87.040                         CHD 20

(Superseding IS 9223 : 1989)

Reaffirmed 2017

NATIONAL FOREWORD

This Indian Standard (Part 5) which is identical with IEC 61557-5 : -*2007 ‘Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 5: Resistance to earth’ issued by the International Electrotechnical Commission (IEC) was adopted by the Bureau of Indian Standards on the recommendation of the Measuring Equipment for Basic Electrical Quantities Sectional Committee and approval of the Electrotechnical Division Council.

This standard supersedes IS 9223 : 1989 ‘Portable earth resistance meters (first revision)’.

The text of IEC Standard has been approved as suitable for publication as an Indian Standard without deviations. Certain 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.