There are many types of explosion-proof wiring, among which the most common ones are aluminum alloy explosion-proof junction boxes, stainless steel explosion-proof junction boxes, and engineering plastic explosion-proof junction boxes; explosion-proof junction boxes can support non-standard customized cabinets according to the level of place of use.
1. After the junction box is unpacked, check whether there is any damage and whether the parts are missing.
2. The junction box should be suspended vertically at the upper part of the roadway or fixed on a special bracket.
3. The cables on both sides of the introduction end must have appropriate degrees of freedom and must not bear the cable head.
4. After the cable enters the box on both sides, it is necessary to use a pallet to fix the end of the stress cone.
5. The bare 30mm core wire at both ends of the cable shall be pressed tightly with a terminal block using a special compression nut (operated with a special wrench) to ensure reliable contact and not allowing the core wire to loosen.
6. The fastening bolts of all parts of the connection box must be complete and regularly inspected by special personnel. Any problems must be dealt with promptly.
7. The repair and relocation of the junction box must not be carried out under live conditions. After the power is turned off, the lid must be opened after discharging according to the requirements of the “Coal Mine Security Regulationsâ€.
8. The junction box must be grounded reliably when it is used.
9, before the prefabricated cable terminal must first press the flange, seal ring, retaining ring and Unicom section into the cable, according to the terminal production process of high-voltage cables handle the cable terminal.
10. When there is no control line to be introduced, the monitoring shields at both ends are individually grouped and connected through the auxiliary terminals. Separate grounding wires at both ends and connect them to their respective internal grounding devices.
How to identify the grounding wire of the explosion-proof junction box:
When we install the explosion-proof junction box, we can find that there is a small terminal or wiring nose on the outside of the box casing. This position is called the grounding line; we should be very clear that the grounding of electrical products can effectively prevent thunderstorms from being The occurrence of lightning strikes can protect the electrical products we use from damage to a certain extent; and the grounding box can effectively introduce static electricity from the outside of the casing into the earth's surface, and it will not cause fire or explosion due to the spark generated by the impact.
The use of explosion-proof junction box must pay attention to the installation of the external grounding box.
1. After the junction box is unpacked, check whether there is any damage and whether the parts are missing.
2. The junction box should be suspended vertically at the upper part of the roadway or fixed on a special bracket.
3. The cables on both sides of the introduction end must have appropriate degrees of freedom and must not bear the cable head.
4. After the cable enters the box on both sides, it is necessary to use a pallet to fix the end of the stress cone.
5. The bare 30mm core wire at both ends of the cable shall be pressed tightly with a terminal block using a special compression nut (operated with a special wrench) to ensure reliable contact and not allowing the core wire to loosen.
6. The fastening bolts of all parts of the connection box must be complete and regularly inspected by special personnel. Any problems must be dealt with promptly.
7. The repair and relocation of the junction box must not be carried out under live conditions. After the power is turned off, the lid must be opened after discharging according to the requirements of the “Coal Mine Security Regulationsâ€.
8. The junction box must be grounded reliably when it is used.
9, before the prefabricated cable terminal must first press the flange, seal ring, retaining ring and Unicom section into the cable, according to the terminal production process of high-voltage cables handle the cable terminal.
10. When there is no control line to be introduced, the monitoring shields at both ends are individually grouped and connected through the auxiliary terminals. Separate grounding wires at both ends and connect them to their respective internal grounding devices.
How to identify the grounding wire of the explosion-proof junction box:
When we install the explosion-proof junction box, we can find that there is a small terminal or wiring nose on the outside of the box casing. This position is called the grounding line; we should be very clear that the grounding of electrical products can effectively prevent thunderstorms from being The occurrence of lightning strikes can protect the electrical products we use from damage to a certain extent; and the grounding box can effectively introduce static electricity from the outside of the casing into the earth's surface, and it will not cause fire or explosion due to the spark generated by the impact.
The use of explosion-proof junction box must pay attention to the installation of the external grounding box.
Portable Emergency Light,Portable Flood Light Rechargeable,Portable Emergency Lamp,Portable Led Emergency Light
NINGBO JIMING ELECTRIC APPLIANCE CO., LTD. , https://www.jimingemergencylight.com