Example of explosion-proof signs:

Ex ib I Mb

Ex: Electrical equipment marking for explosive gas environments

Ib: The protection type isIntrinsic safetytype

I: Coal mine gas environment

Mb: Equipment protection level, can be used in Zone 1

Ex db eb II C T6 Gb

Ex: Electrical equipment marking for explosive gas environments

DB: Protection type isExplosion prooftype

EB: The protection type is increased safety type

IIC: IIC Gas and Vapor Environment

T6:Temperature groupFor T6, the maximum surface temperature of the equipment shall not exceed 85 ° C

Gb: Device protection level, can be used in Zone 1/Zone 2