BS 5472 77th Edition, May 31, 1977
Low Voltage Switchgear and Controlgear for Industrial Use. Terminal Marking and Distinctive Number. General Rules
Includes all amendments and changes through Reaffirmation Notice , December 15, 1991
Published By:British Standards Institution (BSI)
Terminal marking specified in detail for switchgear and controlgear. The 'distinctive number' is a convention indicating the switching capacity. English language version of EN 50005, based on an established international system for devices generally.