Explosion Proof Light LED is a kind of explosion-proof lamp. Its principle is the same as that of explosion-proof lamp. However, the light source is LED light source, which means to prevent the surrounding explosive mixture such as explosive gas environment, explosive dust environment, gas, etc. Lamps adopted in various specific ways. LED explosion-proof lamp safety wiring need to pay attention to what problems? Today, LED explosion proof lighting Supplier will give you a detailed introduction.
1, orientation selection
The circuit should be placed in a location where the risk of blasting is relatively small or away from fire.
2, the choice of laying methods
The blasting risk environment circuit is mainly the explosion-proof steel pipe wiring and cable wiring.
3, barrier seal
Circuitry and maintenance pipes, cables or steel pipe layers are tightly clogged with non-combustible materials when passing through partitions or slabs between different levels of blasting risk areas.
4, wire material selection
Blasting risk Environmental risk level 1 The area within the distribution line should be copper wire or cable. In the case of severe oscillations, multiple strands of copper or multiple strands of copper should be used. Aluminum core power cables shall not be used in underground coal mines.
5, promised traffic
In Section 1 and Zone 2, the insulated wire section and cable section are selected. The conductor is allowed to bear less than 1.25 times the fuse rated current and the breaker long-delay overcurrent release current. The allowable current carrying capacity of the branch line of the low-voltage cage asynchronous motor should not be less than 1.25 times the rated current of the motor.
6, the connection of electrical lines
The center of the Zone 1 and Zone 2 circuits is required to be adjacent to an explosion-proof junction box or junction box that is compatible with the risk environment. Zone 1 should use a fireproof junction box, and Zone 2 can be used to add a type of junction box.
If the aluminum circuit cable or wire is selected in the 2nd district circuit, it is necessary to be reliable to facilitate the use of personnel equipment and maintenance.