Shenhai Ffrwydrad-Prawf
Explosion-proof markings on electrical equipment represent the specific explosion-proof construction employed in these devices.
| Math o brawf ffrwydrad | Symbol Atal Ffrwydrad Nwy | Symbol atal ffrwydrad llwch |
|---|---|---|
| Math o Ddiogel yn ei hanfod | ia,ib,ic | ia,ib,ic,iD |
| Exm | ma,mb,mc | ma,mb,mc,mD |
| Math Barotropig | px,py,pz,pxb,pyb,pZc | p;pb,pc,pD |
| Mwy o Ddiogelwch Math | e,gorchest eb | / |
| Math gwrth-fflam | d,db | / |
| Math Trochi Olew | o | / |
| Llwydni wedi'i Llenwi â Thywod | q,qb | / |
| N-math | NA,nC,nL,nR,NAc,nCc,nLc.,nRc | / |
| Math Arbennig | S | / |
| Math Gwarchod Cregyn | / | wynebu,tb,tc,tD |
These identifiers encompass a range of types, such as flameproof “d”, mwy o ddiogelwch “e”, diogelwch cynhenid “ff”, olew-ymgolli “o”, llawn tywod “q”, amgaeedig “m”, math “n”, special type “s”, and designs for dust explosion-proofing, ymysg eraill.