Cross References:IEC 6007610:2002IEC 60076101:2005IEC 616721:2002IEC 616722:2003ISO 266:1997ISO 3740:2000ISO 3743:1994ISO 3744:1995ISO 3745:2003ISO 3746:1995ISO 8297:1994ISO 9613-1:1993ISO 9613-2:1996ISO 9614-1ISO 9614-2ANSI/IEEE 1127:1998ANSI/IEEE C37.082:1982ANSI S1.11:2004CIGRE Report 14.26CIGRE Report 23.10IEEE Std C57.136:2000All current amendments available at time of purchase are included with the purchase of this document.