What should I pay attention to when wiring LED explosion-proof lights?
1. Location selection
Location selection is a very important step wiring, electrical wiring should be arranged in a smaller risk of explosion or away from the source of release place.
2. Choice of laying method
The main electrical circuits in explosion hazardous environments are explosion-proof steel pipe wiring and cable wiring.
3. Isolation and sealing
Explosion-proof seal is an indispensable part is a very important part, and when the protective wire laying pipes, cables or steel, LED lights passing through the explosion-proof wall or floor between the regions of different degrees hazardous explosion, should be non-flammable The material is tightly blocked.
4. Wire material selection
In areas with explosion hazard level 1, the distribution lines should be copper wires or cables. When the vibration is large, multi-strand copper core cable or multi-strand copper core cable should be used. Aluminum core power cables shall not be used in coal mines.
In hazardous explosive atmospheres two range, LED lights explosion power lines should be used 4mm2 or greater cross-sectional area of aluminum wires or cables, lighting circuits should be greater than or equal cross-sectional area of 2.5mm2 aluminum wire or cable. Aluminum wire or cable.
5. Allowed current carrying capacity
When selecting the insulated wire and cable sections Zone 1 and Zone 2, allowable ampacity fuse wire is not less than the rated current of the circuit breaker and a current 1.25 times the long delay over-current setting release. The allowable current of the low-voltage cage induction motor branch line should not be less than 1. 25 times the rated current of the motor.
6, connected to electric lines
The intermediate connection of the wires in Zone 1 and Zone 2 must be located near an explosion-proof junction box or a junction box compatible with hazardous environments. The explosion-proof junction box should be used in zone 1, and the LED safety explosion-proof lamp additional safety junction box can be used in zone 2.
When selecting aluminum core cables or conductors, the wires in zone 2 must be reliable so that users can correctly install and maintain .
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