Hochiki Europe (UK) Ltd
3
2-3-0-810/ISS3/SEP14
Classification of Hazardous Areas
EN 60079-0 (formally EN50014) states that electrical apparatus for potentially explosive atmospheres is
divided into:
Group I: Electrical apparatus for mines susceptible to fire damp;
Group II: Electrical apparatus for places with a potentially explosive atmosphere, other than
mines susceptible to fire damp.
These flame detectors are designed to meet the requirements of Group II apparatus. For the type of
protection “
d
” Flameproof, Group II is subdivided into Equipment Categories, Type of Explosive
Atmosphere (Table 1), Type of Protection Code (Table 2), Temperature Class (Table 3) and Gas Group
(Table 4).
