What should be the use of explosion-proof control box?
Release time: 2019/11/29 9:20:12 Views: 280
防爆控制箱 的使用应该是怎么样的呢？ Explosion-proof boxes are used in flammable and explosive places to protect the safety of electricity. Because of this, the selection of explosion-proof control boxes requires very careful use. Note, how should the use of explosion-proof control boxes be? ? Let me introduce to you how the use of explosion-proof control box should be.
When we choose explosion-proof control boxes, we must be careful because different types of explosion-proof control boxes are suitable for different appliances. First, we must consider whether the explosion-proof control box we choose matches the ignition point of our flammable materials. Then pay attention to whether the alarm of the explosion-proof control box can play an alarm function.
Check the existing wires; check whether the existing wires are far from the release source; whether the height of the cable or wire is determined by the proportion of explosive gas; whether the wire hole is blocked; whether the line avoids the damaged area. Check the technical requirements for wiring. The rated voltage should not be less than 500 volts; the current carrying capacity of the wire must not be less than 1.25 times the rated current of the fuse. Whether the galvanized steel pipe is sealed and whether the thread engagement meets the requirements; whether the copper core of the cable is ≥ 2.5 mm (zone 1); whether the explosion-proof control box in zone 1 is fireproof; wire. Single-phase equipment Phase 1 lighting, neutral and other phase lines should be short-circuit protected, and the power should be cut off simultaneously with the two-wire switch.
Zone 1 has no intermediate joints; Zone 2 should have no intermediate joints. The horizontal distance of the overhead line crossing area shall not be less than 1.5 times the height of the tower. The grounding system should be equipotential.
There are many places to pay attention to in the explosion-proof control box, and only a few of them are introduced here.
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