Tus explosion-Proof kos npe ex Db Eb IIC T6 Gb txhais hais tias

Ex: Lub kos rau hluav taws xob siv nyob rau hauv tej chaw explosive roj;

db: Tiv thaiv hom yog flameproof;

eb: Kev tiv thaiv yog muaj kev ruaj ntseg;

IIC: Suitable rau tej chaw uas IIC gases thiab vapors;

T6: Qhov no txias Kev faib tawm yog T6, Qhov kub tshaj plaws ntawm cov khoom uas tsis tshaj 85°C;

gb: Khoom tiv thaiv kev tiv thaiv, suitable rau Zones 1 Thiab 2.