Summary:1.1 Before installation, the lamps and their accessories should be complete, and should be free from defects such as mechanical damage, deformation, p
1.1 Before installation, the lamps and their accessories should be complete, and should be free from defects such as mechanical damage, deformation, peeling paint and cracked lampshade.
1.2 According to the installation site and use of the lamps, the minimum cross-section of the wire cores leading to each lamp shall comply with the relevant regulations.
1.3 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 bearing capacity of the above-mentioned fixing parts should match the weight of the electric lighting device.
1.4 In dangerous and special dangerous places, when the height of lamps and lanterns from the ground is less than 2.4 meters, lighting lamps with a rated voltage of 36 volts and below should be used or protective measures should be taken. Lamps should not be installed directly on combustible objects; when the high temperature part of the lamp surface is close to combustibles, measures for heat insulation and heat dissipation should be taken. In the substation, lamps and lanterns should not be installed directly above the high-voltage and low-voltage power distribution equipment and busbars. For lamps installed outdoors, the height from the ground should not be less than 3 meters; when installed on the wall, the height from the ground should not be less than 2.5 meters.
2. Wiring requirements for screw caps
2.1 The phase wire should be connected to the terminal of the center contact, and the neutral wire should be connected to the screw terminal.
2.2 The insulating shell of the lamp holder shall not be damaged or leaked.
2.3 For lamp caps with switches, the switch handle shall not have exposed metal parts. For ceiling lamps equipped with incandescent bulbs, the bulb should not be close to the lampshade; when the distance between the bulb and the insulating table is less than 5 mm, heat insulation measures should be taken between the bulb and the insulating table.
3. Installation requirements for lamps
3.1 When using steel pipe as the hanger of the lamp, 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.
3.2 The light wire of the hanging chain lamps should not be under tension, and the light wire should be braided with the hanging chain.
3.3 Both ends of the cord of the cord chandelier should be protected by buckles; the core wires at both ends should be lined with tin.
3.4 For lamps installed in rows in the same room or place, the deviation of the center line should not be greater than 5 mm.
3.5 Fluorescent lamps and high-pressure mercury lamps and their accessories should be used together, and the installation location should be convenient for inspection and maintenance.
3.6 Fixtures of lamps and lanterns should be firm and reliable. The number of screws or bolts used for fixing each lamp should not be less than 2; when the diameter of the insulation table is 75 mm and below, 1 screw or bolt can be used for fixing.
4. Special lighting requirements
The emergency lighting and evacuation indicators used in public places should be clearly marked. Lighting in public places without special personnel management should be equipped with automatic energy-saving switches.
Each set of street lights should be equipped with fuses on the phase lines. The wires that are introduced into the street lamps from the overhead wires should be waterproofed at the entrance of the lamps.
5. Installation requirements for lighting transformers of 36 volts and below
5.1 The power supply side should have short-circuit protection, and the rated current of its fuse should not be greater than the rated current of the transformer.
5.2 Any end or neutral point of the shell, iron core and low voltage side should be grounded or zeroed.
6. Requirements for luminaires fixed to moving structures
Its wires should be laid on the inner side of the moving frame. During the movement of the moving frame, the wires should not be under tension and wear. When the weight of the chandelier is more than 3 kg, it should be fixed with embedded hooks or bolts; when the weight of the flexible wire chandelier is more than 1 kg, a hanging chain should be added.
7. Installation requirements for metal halide lamps
7.1 The installation height of the lamps should be greater than 5 meters. The wires should be connected to the lamps through the binding posts, and should not be close to the surface of the lamps.
7.2 Lamps must be used with triggers and restrictors.
7.3 The reflective lighting fixtures installed on the floor shall take protective measures.
8. Installation requirements for decorative lamps embedded in the ceiling
8.1 The luminaire should be fixed on a specially designed frame, the wire should not be close to the luminaire shell, and there should be a margin in the luminaire box, and the frame of the luminaire should be close to the ceiling surface.
8.2 The frame of the rectangular luminaire should be parallel to the decorative line on the ceiling surface, and the deviation should not be greater than 5 mm.
8.3 For open-type lamps combined with fluorescent tubes, the tubes should be arranged neatly, and the metal or plastic spacers should not have defects such as distortion.
9. Installation requirements for lanterns
The diameter of the round steel of the hook for fixing the lantern shall not be less than the diameter of the hanging pin hook of the lamp, and shall not be less than 6 mm. For large lanterns, the fixing and suspending devices for hoisting lanterns should be subjected to a load test of 1.25 times the weight of the lamps. For the glass cover of large lamps installed in important places, measures should be taken to prevent them from falling down after being broken according to the design requirements.
10. Installation requirements for neon lights
10.1 Lamps should be in good condition and not broken.
10.2 The lamp tube should be fixed with a special insulating bracket, and it must be firm and reliable. Special holders can be made of glass tubes. The minimum distance between the fixed lamp and the surface of buildings and structures should not be less than 20 mm.
10.3 The length of the lamp tube supplied by the special transformer for neon lights should not exceed the allowable load length.
10.4 The installation location of the special transformer for neon lights should be hidden and convenient for maintenance, but it should not be installed in the ceiling, and should not be touched by non-maintenance personnel. When installed in the open, its height should not be less than 3 meters; when it is less than 3 meters, protective measures should be taken; when installed outdoors, waterproof measures should be taken.
10.5 The connecting wire between the secondary wire of the transformer for neon lights and the lamp tube shall be a high-voltage nylon insulated wire with a rated voltage of not less than 15 kV.
10.6 The distance between the secondary conductors of the special transformer for neon lights and the surface of buildings and structures shall not be less than 20 mm.
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