tawg-pov thawj teeb, txawv ntawm lwm yam khoom siv hluav taws xob tawg, tuaj yeem muab faib ua tsib hom kev tawg-pov thawj: flameproof, nce kev nyab xeeb, zoo siab, tsis muaj teeb meem, thiab plua plav. Txawm li cas los, tsib txoj kev no tsis yog tag nrho.
Hom tawg pov thawj | Gas Explosion-proof Symbol | Dust Explosion-proof Symbol |
---|---|---|
Intrinsically Safe Hom | yog,ib,ib ic | yog,ib,ib ic,iD |
Exm | mav,mb ib,mc | mav,mb ib,mc,mD |
Hom Barotropic | ib px,py,pz ua,pxb ib,pyb,pzc ua | p;pb ua,pc ua,pD |
Ntau hom kev nyab xeeb | e,ib eb | / |
Hom Flameproof | d,db ua | / |
Roj Immersed Hom | o | / |
Xuab zeb puv Pwm | q,qb ib | / |
N-type | nA,nC,nL,nR,nAc,nCc,nLc,nrc | / |
Hom tshwj xeeb | S | / |
Shell Protection Hom | / | ntsej muag,tb,tc,tD |
Vim muaj ntau yam kev siv rau kev tawg-pov thawj teeb, muaj ntau ntau yam, including a special type that combines multiple explosion-proof methods.