The installation method of ceiling lamps is different from that of other lamps. The following is a brief introduction to the precautions before the installation of a ceiling lamp and the installation method of a ceiling lamp.
Ceiling lamps cannot be directly installed on flammable objects. Some families use painted plywood to line the back of ceiling lamps for beauty. This is very dangerous, and thermal insulation measures must be taken; If the high-temperature part of the lamp surface is close to combustible materials, thermal insulation or heat dissipation evaluation shall also be taken.
The section of the conductor core leading to each lamp shall be no less than 0.4mm2 for copper core flexible wire and 0.5mm2 for copper core, otherwise the lead must be replaced.
The connection between the wire and the lamp cap and the parallel wire between the lamp caps should be firm, and the electrical contact should be good, to avoid the spark between the wire and the terminal due to poor contact, thus causing danger.
If the screw lamp cap is used in the ceiling lamp, the following two points should also be noted for its wiring:
The phase line should be connected to the terminal of the central contact, and the zero line should be connected to the terminal of the thread.
The insulating shell of the lamp holder shall be free from damage and leakage to prevent electric shock when replacing the bulb.
For ceiling lamps equipped with incandescent bulbs, the bulbs should not be close to the lampshade; The power of the bulb should also be selected according to the technical requirements of the product, and should not be too large, to avoid the bulb temperature being too high, and the glass cover falling after breaking and hurting people.
The two wire ends connected to the ceiling lamp power incoming line should have good electrical contact. They should also be wrapped with black tape and kept at a safe distance. If possible, try not to put the ends of the two wires under the same metal plate to prevent short circuits and danger.
Test the voltage at home with an electric meter to determine that it is 220 volts. (220V in the Chinese Mainland)
Turn off the main power supply and take out the fixing base of the lamp.
Remove the junction box or old lamp holder on the ceiling.
Lock the ceiling lamp hanging plate and junction box with screws.
Connect the wires on the lighting and ceiling, and cover the insulation terminals. There is no difference between positive and negative AC in the home. You can connect them at will when wiring.
Align the central hole of the lamp holder with the screw of the hanging plate and fix the lamp holder on the ceiling.
The bulb can be selected according to the specification of the lamp.
Gently screw on the bulb with your hand. The ceiling lamp is installed without pressing it.
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