Marking of Intrinsically Safe Electrical Khoom

Tus markers rau intrinsically zoo khoom yog: tub sab, ib qho, los sis ic.

Kev Nyab Xeeb	Intrinsic kev ruaj ntseg theem
General	IA,IB QHO,IC

Qib siab uas tawg tiv thaiv yog qhia los ntawm ia, Thaum qhov tsawg tshaj plaws yog denoted los ntawm ic.