http://www.nabl-india.org/nabl/asp/users/proccessDownload.asp?ID=3&mod=document&fileType=doc NABL 104 NA BL NATIONAL ACCREDITATION BOARD FOR TESTING AND CALIBRATION…
IS : 3043 - 1987 (Reaffirmed 2001 ) Indian Standard CODE OF PRACTICE FOR EARTHING (First Revision) Second Repriat FEBRUARY1998 UDC 621316.99:006.76 © Copyright 1988 B U…