Electrical relays. Vibration, shock, bump and seismic tests on measuring relays and protection equipment - Vibration tests (sinusoidal)What is BS EN 60255 21 1 Electrical relays about? BS EN 60255 21 1 is part of a series specifying the vibration, shock, bump and seismic requirements applicable to measuring relays and protection equipment (with or without contacts). BS EN 60255 21 1 includes two types of vibration tests: the vibration response test and the vibration endurance test, and is generally based upon IEC 68 2 6. The requirements of BS EN 60255 21 1 are applicable only to

Mechanical components

Wire rope manufacturers and suppliers

This British Standard is based on PAS 126-1:2008 and PAS 126-2:2008

This standard also covers classification and designation

e) Bio-mechanical systems

Conformity assessment provides assurance for regulatory authorities

benchmark indicators and trial set elements that are necessary to successfully identify

Police and lawyers

3 on methods for determination of person/surface interaction is useful for:

latches and their locking plates used in fire resistant and/or smoke control door assemblies require additional attributes in order to confirm to the Essential Requirement "Safety in case of fire" either independently or as a part of a complete assembly

2 Communications strategy

Note: PD IEC TR 62977‑2‑4 only considers direct view displays