Explosion proof signs are crucial information for equipment explosion-proof certification, involving the design requirements and testing items of the equipment. The explosion-proof mark can clearly understand the scope of application and site requirements of the equipment, and it can be said that the explosion-proof mark is the ID card of the explosion-proof product.
A complete explosion-proof sign includes:
Ex identification
Explosion proof type
Gas/dust combination
Temperature group
Equipment protection level
For example: Ex db ib IIC T4 Gb
Ex tb IIIC T130 ° C Db
Ex de llB T6 Gb
Ex represents explosion-proof
D e indicates that the equipment adopts explosion-proof and increased safety explosion-proof types
LlB indicates that the device is suitable for explosive gas environments of llB and llA
T6 indicates that the high surface temperature of the device does not exceed 85 ° C,
Gb is the protection level of the device, suitable for Zone 1 and Zone 2
To learn more, please contact Shenzhen Zhongnuo Testing Technology Co., Ltd.
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