POSTER Ex marking

Interpreting hazardous locations markings for the IECEx equipment

The Ex marking of explosion-protected equipment according to the requirements of IECEx standards includes the marking of electrical equipment intended for explosive gas and dust atmospheres (60079 series standards) and the marking of non-electrical equipment intended for explosive gas and dust atmospheres (80079-36 and 80079-37 standards).

The Ex marking contains a certain sequence of special symbols, each of which carries information such as: Type of protection, Equipment Protection Level and zone.

The Ex marking string shall be placed in the order in which they are given in 29.4 (IEC 60079-0) and shall each be separated by a small space.