The difference between explosion-proof lighting boxes and explosion-proof power cabinets

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Explosion-proof lighting boxes are mainly used for power distribution equipment and lighting control systems. Because explosion-proof lights have relatively low power, the load of the lighting box is smaller than that of the power cabinet, with the overall current generally below 63A and single output voltage below 16A.。Generally single-phase power supply is used, but three-phase power supply can also be selected according to actual needs.。

Explosion-proof power cabinets are mainly used for the starting, running, and stopping control of motors for centrifugal fans, agitators, gasoline pumps, centrifugal pumps, or other equipment electrical devices such as oil temperature controllers and industrial chillers.。The controlled equipment consists of very high-power motors with large loads.。The total incoming current is generally above 63A.。

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Class II environments are further divided into IIA, IIB, and IIC according to the environmental gases. Except for acetylene, hydrogen, and carbon disulfide, which require IIC-type explosion-proof distribution cabinets, all others can use IIB grade.。

Based on the storage duration of flammable gases and dusts at the site, it can be divided into Zone 0, Zone 1, Zone 2, and Zone 20, Zone 21, Zone 22, corresponding to explosive gas environments and dust environments respectively. Zone 0 and Zone 20 rarely use explosion-proof distribution cabinets. First, we understand the conditions of Zone 1 (Zone 21) and Zone 2 (Zone 22). Except for positive-pressure explosion-proof cabinets, which use different explosion-proof levels in Zone 1 and Zone 2, flameproof explosion-proof distribution cabinets can be used in both zones.

The above is the basic introduction to the differences between explosion-proof lighting boxes and explosion-proof power cabinets. For more latest information, please visit Hualong explosion-proof at www.hlfangbao.com.