IEC 60309-1:1997 Plugs, socket-outlets and couplers for industrial purposes - Part 1: General requirements
IEC 60364-4-41:2005 Low-voltage electrical installations - Part 4-41: Protection for safety - Protection against electric shock
IEC 60364-7-707:1984 Electrical installations of buildings. Part 7 : Requirements for special installations or locations. Section 707 : Earthing requirements for the installations of data processing equipment
IEC 61140:2001 Protection against electric shock - Common aspects for installation and equipment
IEC Guide 104:2010 The preparation of safety publications and the use of basic safety publications and group safety publications (Edition 4.0)