Installation requirements for facry lamps

　　With the rapid economic development and the increasingly complete system and facilities day, the development of lamps is also advancing with the times. There are different lamps for the different needs of various industries. So what are the requirements of the facry when installing lamps?

　　1. General requirements

　　1. Before installation, the lamps and their accessories should be complete, and there should be no defects such as mechanical damage, deformation, peeling paint, and cracked lampshades.

　　2. According  the installation place and purpose of the lamp, the minimum cross-section of the wire core leading  each lamp should comply with the relevant regulations.

　　3. When installing electrical lighting devices in masonry structures, they should be fixed with embedded hooks, bolts, screws, expansion bolts, nylon plugs or plastic plugs; wooden wedges are strictly prohibited. When the design is not specified, the carrying capacity of the above-mentioned fixing parts should match the weight of the electric lighting device.

　　4. In places with greater dangers and special dangers, when the height of the lamps is less than 2.4 meters from the ground, lighting lamps with a rated voltage of 36 volts and below should be used or protective measures should be taken. Lamps should not be directly installed on combustible objects; when the high temperature part of the lamp surface is close  combustibles, heat insulation and heat dissipation measures should be taken.

　　5. Lamps should not be installed directly above high-voltage and low-voltage power distribution equipment and busbars in the substation.

　　6. Lamps installed outdoors should not be less than 3 meters above the ground; when installed on the wall, the height above the ground should not be less than 2.5 meters.

　　2. Specific requirements for installation

　　1. When steel pipes are used as the suspenders of lamps and lanterns, the inner diameter of the steel pipe should not be less than 10 mm; the thickness of the steel pipe wall should not be less than 1.5 mm.

　　2. The light wire of the hanging chain lamp should not be subjected  tension, and the light wire should be braided gether with the hanging chain.

　　3. Both ends of the cord of the cord chandelier should be protected with buckles; the core wires at both ends should be tinned.

　　4. For lamps installed in rows in the same room or place, the centerline deviation should not be greater than 5 mm.

　　5. Fluorescent lamps, high-pressure mercury lamps and their accessories should be used gether, and the installation location should be convenient for inspection and maintenance.

　　6. Fixing of lamps and lanterns should be firm and reliable. There should be no less than two screws or bolts for fixing each lamp; when the diameter of the insulating table is 75 mm or less, one screw or bolt can be used for fixing.