BS 4794-2 Sections 2.3 and 2.4:1977
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Specification for control switches (switching devices, including contactor relays, for control and auxiliary circuits, for voltages up to and including 1000 V a.c. and 1200 V d.c.) Contactor relays. Pilot switches
Hardcopy , PDF
01-01-1992
English
31-10-1977
Additional specific requirements for contactor relays and pilot switches (pressure switches, level switches, time switches, thermostats, etc).
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