Слово встречается в следующем контексте: Explosion Proof Solenoid Ratings U.L. (EU) Class I, Div. 1 & 2, Groups C & D C.S.A. Class II, Div 1 & 2, Groups E, F & G As defined by the N.E.C CENELEC (ED) Complies with BASEEFA requirements **for BS5501: Parts 1 and 5 Ex’d** CENELEC EN50 – D18, Group II B