Norm-Entwurf
OEVE/OENORM EN 50039
OEVE/OENORM EN 50039
Electrical apparatus for potentially explosive atmospheres - Intrinsically safe electrical systems 'i' - Group II systems for gas atmospheres
Titel (englisch)
Electrical apparatus for potentially explosive atmospheres - Intrinsically safe electrical systems 'i' - Group II systems for gas atmospheres