Fire detection and fire alarm systems - Short-circuit isolators Ingestion-build-201039 testing and marking of electrical

testing and marking of electrical apparatus and Ex components intended for use in explosive gas atmospheres

and large tanks used to store large quantities of water or other liquids for domestic or industrial consumption

EN 61000-4-4:1995

in particular those covered by the BS EN 81 series of standards

Fire detection and fire alarm systems - Short-circuit isolators Ingestion-build-201039 testing and marking of electricalBS EN 54 17: 2005 specifies requirements, test methods and performance criteria for shortcircuit isolators, for use in fire detection and fire alarm systems for buildings (see EN 54 1). Means of isolation or protection incorporated within control and indicating equipment (item B in Figure 1 of EN 54 1: 1996) are not covered by this European Standard.