Wochuan explosion-proof use of explosion-proof operation box analysis
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2. Read this manual carefully before wiring.
3. The wiring should be done by a qualified professional.
4. In the explosion-proof operation box, the connection cables from the instrument installation chamber to the wiring chamber should be reliably sealed by the joint between the chambers.
5. Explosion-proof operation box and external connection lead out from the terminal block in the wiring chamber, and shall be connected to the outside through the four sealed joints at the lower part of the explosion-proof display box. The external connection of the explosion-proof operation box shall meet the explosion-proof specification requirements. For unused sealing joints, use a random carry metal plug (metal disc) to seal it.
6. The enclosure of the explosion-proof operation box should be reliably connected with the grounding pile located in the safety zone. The grounding resistance should not exceed 4 ohms, and the resistance of the connection cable should not exceed 1 ohm.