One, before the commencement of work by the electrical professionals according to the actual working conditions on site to prepare a targeted temporary power program, a clear arrangement of power equipment, power load distribution, cable setup, key parts of the lighting layout, and the preparation of temporary power layout plan.
Two, the general requirements
1, in the pit, hole, well operation, night construction or plant, road, warehouse, office, canteen, dormitory, material storage yard and poor natural lighting and other places, should be set up general lighting, local lighting or mixed lighting. In a workplace, not only local lighting. After the power outage, the operator needs to evacuate the construction site in time, must be equipped with self-powered emergency lighting.
2, night work, the work area and the cab should have sufficient lighting facilities, lamps and lanterns should be complete and intact.
3, the site lighting should be used for high luminous efficiency, long life lighting source. The need for large-area lighting places, should be used high-pressure mercury lamp, high-pressure sodium lamps or mixed light with tungsten halogen lamps and so on.
4, the choice of illuminator must be determined by the following environmental conditions:
① Normal humidity in general places, the choice of open-type illuminator.
② wet or particularly wet places, the use of closed waterproof illuminator or waterproof lamp head with open illuminator.
3 contains a lot of dust, but there is no danger of explosion and fire places, use dust-proof luminaire.
4 explosion and fire hazardous places, according to the level of hazardous places, the use of explosion-proof luminaire.
5 strong vibration places, the use of anti-vibration type illuminator.
6 strong corrosive media such as acid and alkali places, the use of acid and alkali type illuminator.
5, the quality of lighting appliances and equipment should be in line with the provisions of the relevant national mandatory standards in force, shall not use the insulation aging or broken appliances and equipment;
6, no natural lighting in the space of non-standard equipment manufacturing, civil engineering underground or inside the space of the construction site, should be compiled for a single lighting power program.
7, up and down the human channel, slide mold frame body, confined space arrangement of lighting fixtures should be used to safe voltage and lamps.
Three, special construction
1, in the deep pit, steep slopes and other dangerous areas as well as transportation roads at night construction should be sufficient lighting, and should be added to the red light sign, in order to prevent casualties.
2, in the slip mold construction site to prepare a generator, such as slip mold process construction site encountered a power outage, the generator should be started immediately, in order to prepare for the needs of the construction site, night construction and up and down the channel should be sufficient lighting.
3, the main structure of the construction should have enough lighting (can use the tower crane frame, special lamps, mobile tungsten iodine lamps, etc.), the illumination should meet the needs of the construction process, and in line with the design requirements of the temporary power program.
4, decorative construction should have sufficient lighting, there should be no dead ends on the work surface, and lighting appliances should be far away from flammable materials, in and out of the channel should be used for safe voltage and lamps.
5, waterproof construction should have enough lighting, and lighting equipment should be away from waterproof materials.
6, lighting: lighting at the construction site, first of all pay attention to the close relationship with people in the construction workplace lamps and lanterns from the ground height of less than 2.5m place of illumination, such as local lighting, running lights, lights, etc., the power supply voltage should not be greater than 36V; wet places or in the metal location of the construction of the lighting is not more than 12V.
Running light power cord using rubber cables, shall not use plastic Flexible cable.
Lighting transformer must use double winding type safety isolation transformer, prohibited the use of self-root transformer, transformer metal shell and secondary coil should be zero protection and waterproof rain measures.
The hand-held mobile handle lamp must be connected with a plug socket.
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