Explosion-proof markings on electrical equipment represent the specific explosion-proof construction employed in these devices.
Explosiebestendig type | Gas explosiebestendig symbool | Stofexplosiebestendig symbool |
---|---|---|
Intrinsiek veilig type | ia,ik,ic | ia,ik,ic,ID |
Exm | ma,mb,mc | ma,mb,mc,mD |
Barotropisch type | px,py,pz,pxb,pyb,pZc | P;pb,pc,pD |
Verhoogd veiligheidstype | e,eb | / |
Vlambestendig type | D,db | / |
In olie ondergedompeld type | O | / |
Met zand gevulde mal | Q,qb | / |
N-type | nA,nC,nl,nr,nAc,nCc,nLc.,nRc | / |
Speciaal type | S | / |
Shell-beschermingstype | / | geconfronteerd,tb,tc,tD |
These identifiers encompass a range of types, such as flameproof “D”, verhoogde veiligheid “e”, intrinsieke veiligheid “i”, ondergedompeld in olie “O”, zand gevuld “Q”, encapsulated “M”, type “N”, special type “S”, and designs for dust explosion-proofing, onder andere.