Railway applications. Direct current signalling monostable relays of type N and type C PAS 15 b) relative density

b) relative density

This Part of BS 5502 gives recommendations on the design and selection of alarm systems

to be applied to the estimation of specific migration of substances into drinking water from organic materials intended to come into contact with drinking water

ISO/TR 16476 provides principles for

Mechanical properties are given in respect of carbon and alloy steel bolts

Railway applications. Direct current signalling monostable relays of type N and type C PAS 15 b) relative density1 Scope This International Standard gives requirements for direct current relays intended for safety related applications in railway signalling installations. This International Standard is applicable to monostable relays of type N and type C.