Qaysi portlashdan himoyalanish darajasi yuqoriroq, IA yoki D

Olovga chidamli belgi “d” EPL Gb toifasiga mos keladi, Bu faqat zonalardagi gaz muhitlari uchun mos keladi 1 va 2;

Portlashdan himoyalangan tur	Gaz portlashdan himoyalangan belgi
Intrinsic safety type	ia,ib,tushunarli
Flame type	d,db

Ichki xavfsizlik belgisi “ia” eng yuqori daraja bilan bog'liq, APL Ga, zonalarda gaz muhitini qamrab olish 0, 1, va 2;

Shuning uchun, the intrinsic safety type ia offers a superior level of explosion protection compared to the flameproof type.