The important items to consider, when installing fire alarm systems in explosive gas or dust atmospheres
10.1 Commentary
If it is necessary to install fire alarm equipment or wiring in areas where an explosive atmosphere could result from the presence of flammable gases, vapours or mists, or the presence of combustible dusts, special protection measures are essential to ensure that the potential for ignition of the atmosphere by the fire alarm equipment or wiring is minimized.
10.2 Recommendations
The following recommendations are applicable.
a) Any fire alarm system (or part of a fire system) protecting an area, or with cables passing through an area, in which there may be an explosive gas, vapour or mist atmosphere should comply with the requirements of BS EN 60079-14.
b) Any fire alarm system (or part of a fire system) protecting an area, or with cables passing through an area, in which
there may be an explosive dust atmosphere should comply with the requirements of BS EN 50281-1-2.
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