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Explosion-proof control boxes take into account environmental and interference issues.
1, explosion-proof control box has been installed inside the network switch, power surge surge protector, signal surge protector, signal isolator, intermediate relays, circuit breakers, video surge protectors, buttons and lights.
2, through the front handle of the explosion-proof control box and power supply and disconnection and indicator light opening and closing.
3. There are lead terminals in the upper wiring box of the control cabinet. The terminal wiring diagram is shown in the drawing, in which the PE directly connects to the inner grounding bolt.
4. The control cabinet of the explosion-proof control box is provided with internal and external grounding bolts and has a grounding mark.
5. In the design of the explosion-proof control box structure, full consideration is given to the purpose of exploding the explosive mixture outside the explosion-proof control box when the explosive mixture invades its interior and an explosion occurs for some reason.
6, from the shell strength and the composition of the various components of the shell joint surface gap, length and limit the surface is not allowed to reach critical temperatures and other key conditions to ensure that the flameproof performance.
Most of the explosion-proof control boxes are based on the requirements of non-standard customized, full set of customer's different requirements for electrical control, so we often say the explosion-proof box can be customized to operate the local explosion-proof control box, that is, we often say The on-site explosion-proof control box, there is a kind of remote control explosion-proof control box, through the button on the remote motor for real-time control of different working conditions.
Explosion-proof control box structure design requirements
Explosion-proof control box is usually made of metal shell, and the common materials for making explosion-proof control box are ZOL synthetic aluminum alloy casting, Q235A/Q235B carbon steel welding, and stainless steel (201/304/316) welding material. Because the explosion-proof control box is a metal shell, the manufacturer will perform different construction requirements according to the different electrical components installed inside during the process of design, and conventionally be divided into single-cavity or multiple-cavity bodies. The chamber of the explosion-proof control box was further divided into a flameproof chamber and a Zeng'an chamber.