This part of IEC 60079 specifies the requirements for the design, construction, testing and marking of electrical equipment and Ex Components with type of protection increased safety “e” intended for use in explosive gas atmospheres.
Electrical equipment and Ex Components of type of protection increased safety “e” are either:
a) Level of Protection “eb” (EPL “Mb” or “Gb”); or
b) Level of Protection “ec” (EPL “Gc”)
