IEC 60571:1977

Applies to all electronic equipment for control, regulation, protection, supply etc associated with the accumulator battery of the vehicle or a low voltage power supply source with or without the direct connection to the contact system. Does not apply however to electronic power circuits which conform to IEC 61287-1. It covers the conditions of operation, design, construction and testing of electronic equipement as well as basic hardware and software requirements.It cancels and replaces IEC 60571-1, 60571-2 and 60571-3.

Applies to any electronic equipment for control, regulation, protection, and supply installed on rail vehicles with the exception of electronic power circuits, which conform to IEC 411. Also applies to electronic equipment installed on driving cars, coaches and wagons.