Explosion-proof control cabinet

Explosion-proof distribution box A type of distribution box with explosion-proof performance. There are explosion-proof lighting distribution boxes, explosion-proof power distribution boxes, explosion-proof anti-corrosion distribution boxes, etc. BXM(D) explosion-proof distribution box is suitable for lighting in flammable and explosive places such as petrochemical installations, oil platforms, gas stations, oil pump rooms, transfer stations, etc. Explosive gas environment in Zone 1 and Zone 2. Combustible dust environment in areas 21 and 22.

History background

With the rapid development of petroleum, chemical industry, military industry, engineering, factories and mines, mining and other industries, explosion-proof distribution boxes are more and more widely used in production, storage and rescue, and more and more varieties. How to prevent the accidental explosion of explosion-proof distribution boxes in explosive gas hazardous locations has become a very important issue. Since explosion-proof distribution boxes inevitably generate electric sparks when they are working, once they encounter explosive gas mixtures at the production or rescue site, they will cause explosions and directly endanger the safety of national property and citizens’ lives. Therefore, as the most widely used lighting fixture, its explosion-proof technical problems have long aroused widespread concern and high attention.

Scope of application

1. Hazardous locations for explosive gas mixtures: Zone 1 and Zone 2.

2. Sexual gas mixture: ⅡA, ⅡB, ⅡC.

3. Combustible dust environment 20 zone, 21 zone, 22 zone

4. Temperature group: T1~T6.

5. Explosion-proof mark: ExdeⅡBT6, *ExdeⅡCT6.

Specifically summarize the use of places such as indoor and outdoor workplaces, China's coal industry, PetroChina, Sinopec, CNOOC, power, metallurgy, railways, steel, ships, troops, aerospace, public security and fire protection, chemical industry, government departments, venues, transportation, And the needs of large enterprises. Note: Please specify Class IIC.

Instructions

1.According to the actual lighting needs of the work site, determine the installation position and method of the lamp, and then prepare the three-core cable of the corresponding length according to the distance between the lamp and the 220V power contact (if using steel pipe wiring, the three-core cable is introduced into the steel pipe to Lamp installation).

2. First remove the fixing screw on the wiring cavity and pull out the wiring part of the terminal box; take out the sealing ring and the connector (with set screw) from the packaging box, and then sleeve the cable in turn; then connect one end of the three-core cable Connect the labels "L", "N" and grounding in the box. After pressing the cable with the crimping clip, fix it with the fastening screw, then tighten the joint, compress the sealing ring, and tighten the set screw from the side.

3. Screw the part in step 2 into the steel tube, install the set screws from the side to lock, then install the lamp body along the guide rail of the junction box, and then tighten the screws on the panel.

4. Finally, connect the other end of the three-core cable to the 220V power supply according to the requirements of the explosion-proof distribution box.

5. When replacing the bulb, first cut off the power, and then use the hex wrench to remove the set screw on the housing, use a large screwdriver or other tools to loosen the lamp cover 6 turns, and then carefully remove the lamp cover slowly by hand, turn Replace the old bulb with a new bulb.