Intrinsic safety is a design technique applied to electrical equipment for hazardous areas. The technique is based on limiting energy, electrical and thermal, to a level below that required to cause ignition of a flammable or combustible atmospheric mixture in its most easily ignitable concentration.
Hazardous areas are classified into zones to facilitate the selection of appropriate electrical apparatus as well as the design of suitable electrical installations. Different safety requirements are demanded of the equipment used depending on the likelihood of the occurrence of an explosive atmosphere. The equipment protection level is matched to the hazard potential in the different zones.
An area in which an explosive gas atmosphere is present continuously or for long periods or frequently.
An area in which an explosive gas atmosphere is likely to occur periodically or occasionally in normal operation.
An area in which an explosive gas atmosphere is not likely to occur in normal operation but, if it does occur, it will exist for a short period only.
i.safe MOBILE and RugGear: a value-added partnership
Together with its German partner i.safe MOBILE, RugGear develops intrinsically safe communication devices for explosion hazardous areas.