I. General Provisions 1. When installing electrical lighting devices in masonry structures, pre-embedded hooks, bolts, screws, expansion bolts, nylon plugs or plastic plugs should be used; wooden wedges are strictly prohibited. When the design is not specified, the bearing capacity of the above-mentioned fixing member should match the weight of the electric lighting device. 2. In places with high risk and special dangers, when the height of the lamp is less than 2.4M from the ground, the lighting fixture with rated voltage of 36V or below should be used, or protective measures should be taken. 3. The wiring of the electric lighting device should be firm and the electrical contact should be good; the non-charged metal parts such as lamps, switches and sockets that need to be grounded or connected to zero should have a special grounding screw with obvious signs. 2. Lamps 1. Lamps shall not be directly installed on flammable components; when the high temperature parts of the lamps are close to combustibles, heat insulation and heat dissipation measures shall be taken. 2. In the substation, high-voltage, low-voltage power distribution equipment and busbars should not be installed directly above the busbars. 3. The insulation of the lamp cap should not be damaged or leaked. 4. For lamp caps with switches, the switch handles should not have exposed metal parts. Third, the installation height of the socket 1, socket should meet the design requirements, when the design has no provisions, should meet the following requirements: 2, the height from the ground should not be less than 1.3m nursery school, kindergarten and primary school should not be less than 1.8m; the socket installed in the same place The height should be consistent. 3. The installation height of the sockets in the workshop and the laboratory should not be less than 0.3m from the ground; the sockets installed in special places should not be less than 0.15m; the height difference of the sockets installed in the same room should not be greater than 5mm; the height difference of the sockets installed in the same model should not be greater than 1mm. 4. The floor socket should have a firm and reliable protective cover. 5, the wiring of the socket should meet the following requirements: 1) single-phase two-hole socket, facing the right hole or upper hole of the socket and the phase line, the left or lower hole is connected with the zero line; single-phase three-hole socket, The right hole facing the socket is connected to the phase line, and the left hole is connected to the zero line. 2) The grounding wire or the zeroing wire of single-phase three-hole, three-phase four-hole and three-phase five-hole sockets should be connected to the upper hole. The ground terminal of the socket should not be directly connected to the neutral terminal. 6. When AC, DC or sockets of different voltage levels are installed in the same place, there should be obvious differences, and different structures, different specifications and sockets that cannot be interchanged must be selected; the matching plugs should be AC, DC or Different voltage levels are used differently. 7. The three-phase socket of the same place must have the same phase of wiring. 8. Sockets should not be installed on the circuit of standby lighting and evacuation lighting. 4. Switch 1. The switch installed in the same building and structure should adopt the same series of products. The on/off position of the switch should be consistent, and the operation is flexible and the contact is reliable. 2. The position of the switch installation should be easy to operate. The distance between the switch edge and the door frame should be 0.15~0.2m; the height of the switch from the ground should be 1.3m; the height of the pull switch should be 2~3m from the ground, and the cable exit should be vertically downward. . 3. The phase line should be controlled by switch; it is strictly forbidden to install bedside switch in residential houses. 5. Lighting distribution box (board) 1. The AC, DC or different voltage levels of the power supply in the lighting distribution box (board) should have obvious signs. 2. The lighting distribution box (board) should not be made of combustible materials; in dry and dust-free places, the wooden distribution box (board) should be treated with flame retardant. 3. When the wire is led out of the panel, the panel hole should be smooth and burr-free, and the metal panel should be provided with an insulating protective cover. 4. The height of the bottom of the lighting distribution box should be 1.5m; the height of the bottom of the lighting distribution board should not be less than 1.8m. 5. In the lighting distribution box (board), the zero line and the protective ground line (PE line) bus bar should be set separately. The neutral line and the protection line should be connected on the bus bar, and should not be spliced, and should be numbered. 6. The name of the power circuit should be indicated on the lighting distribution box (board). Sixth, lighting design types and power supply 1, lighting types can be divided into: normal lighting, emergency lighting, duty lighting, security lighting, landscape lighting and obstacle sign lights. 1) Emergency lighting includes standby lighting (lighting for continued and temporary work), evacuation lighting and safety lighting. 2) The duty lighting should utilize one or all of the parts of the normal lighting that can be individually controlled or the alternate lighting. 2. The standby lighting should be installed on the wall or ceiling. Evacuation lighting should be located at the top of the evacuation exit or on the wall of the evacuation walkway and its corner below 1m below the ground. The distance between the evacuation indicator lights on the walkway should not exceed 20m. 3. The lighting load that is particularly important should be automatically switched between the power distribution board at the end of the load, or the power distribution mode with about 50% of the lighting of each of the two dedicated circuits. 4. The standby lighting should be powered by two power sources or two lines: 1) When two high-voltage power supplies are used, the power supply trunks of the standby lighting should be connected to different transformers. 2) When a self-supplied generator set is provided, one power supply of the standby lighting should be connected to the generator as a dedicated circuit, and the other channel can be connected to the normal lighting power supply (if more than two transformers are supplied, they should be connected to different mothers) Trunk line). In important places, emergency lighting with batteries or standby lighting with battery packs should be installed as a transition period before the generator set is put into operation. 3) When two-way low-voltage power supply is used, the power supply of the backup lighting should be separately connected from the two low-voltage distribution mains. 4) When the power supply condition does not have two power sources or two lines, the backup power source should use a battery pack or an emergency light with a battery. 5. When the standby lighting is used as part of normal lighting, its distribution lines and control switches shall be installed separately. When the standby lighting is used only in the event of an accident, the standby lighting should be automatically put into operation when the normal lighting is powered off. 6. When the emergency lighting with battery is used for evacuation lighting, the normal power supply can be connected to the dedicated circuit of the distribution panel of this layer (or this area), or it can be used for disaster prevention from this layer (or this area). switchboard.
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201-400Kva Diesel Generator,Super Silent Power Generator,400Kva Diesel Generator,Super Silent Type Diesel Generator
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