The nameplate of the explosion-proof lamps with increased safety will be marked with the corresponding explosion-proof mark. According to the requirements of GB 3836 standard, the content of explosion-proof signs is mainly as follows: explosion-proof type + gas group + temperature group + equipment protection level.
Gas and temperature groups we will do a detailed science popularization, today we will briefly talk about the explosion-proof type in the increased safety type, mark: e; Applicable area: Zone 1 and Zone 2; Explosion-proof national standards: GB 3836 and GB12476
The explosion-proof rating indicated on the nameplate of a common luminaire, for example:
exeib mb iic t6 gb/ex td a21 ip67 t80℃
Explosion-proof emergency lamp is a high-heat explosion-proof electrical equipment, which is prone to failure in the working process, especially due to the aging of the light source, which will also cause the abnormal operation of the ballast, resulting in the high working temperature of the ballast or even burning.
At present, the most common explosion-proof types of explosion-proof lamps are flameproof type, increased safety type, and non-spark type only used in zone 2, in the increased safety type explosion-proof emergency lamps and non-spark explosion-proof lamps, and in the safety increase cavity of some composite explosion-proof emergency lamps, the inverter and charger in the explosion-proof emergency lamp of the electrical components that may appear dangerous sparks may occur, if the pouring and sealing process is carried out, these dangers and faults can be effectively prevented.