BS 5000-15:1980 Rotating electrical machines of particular types or for particular applications. Machines with type of protection 'e' (increased safety)
Specifies, by cross-reference to BS 5501 Parts 1 and 6, BS 4683-4 and BS 5000-99, requirements for rotating electrical machines with type of protection 'e' which gives increased security against possibility of excessive temperatures and of the occurrence of arcs and sparks during the service life of the apparatus.