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The temporary power supply at the construction site should have a complete plug. switch. socket. The leakage protector is set, and the cable must be used for temporary power.
The power cord is divided into three colors: fire red. Zero line blue. Ground wire yellow. All unidirectional sockets should be "left zero right fire middle ground" or "fire down zero" connection.
Power supply circuit for each room outlet, kitchen. bathroom. The power supply circuit of the bathroom should be used independently for the leakage protector. It must be connected to other power supply circuits, and its neutral line must not be connected to other circuits.
For high-power appliances such as air conditioners, a dedicated power supply circuit must be set up. The air conditioner uses a 4M2 power cord, and the lighting cable uses a 1.5~2.5M2 power cord. All power outlets should use a 2.5M2 power cord. Other power supply loads refer to this standard.
All PVC smoldering tube casings of 20 in-wall electric wires are buried and elbows are used. Straight section. Wiring and other connections, the bottom of the box should not have a joint in the cup tube. Do not expose the power cord to the ceiling or directly into the wall with cement to ensure that the power cord can be pulled or replaced.
Under special conditions, when the power line pipe passes under the ground, special attention should be paid to the fact that the casing must be tightly connected under the ground. The joint source wire must not be used under the ground. Before the ground is closed, the PVC casing must be protected and no rupture damage is allowed. When the floor tiles are laid, the PVC casing should be completely covered by sand. When the wooden floor is nailed, the power cable should be laid along the corner to prevent the power cord from being nailed. damage.
The power cord goes horizontally and vertically, can't be diagonally pulled, and avoids the wall mirror, the shelf. The installation position of furniture, etc., to prevent being hammered. Nail damage. When the power cord is buried, it should not be considered with electric heating. Water Ting. Water pipes and weak electric pipelines are kept at a distance of more than 500 mm.
The power line pipe should be fixed in the wall groove in advance, and the surface of the casing should be recessed into the wall surface by more than 13MM (the wall groove depth is >33MM)
After inspection and approval, after the power cord is connected, the wall surface should be wetted, sealed with 1:2.5 cement mortar, and the surface of the crucible should be flat and 2MM below the wall surface. The power supply bottom box should be installed firmly, and the bottom surface of the panel should be flat and match the wall surface.
The air-conditioning power supply adopts 16A=hole socket. In the height that children can touch (less than 1.5M), the socket with protective door should be used. wash room. The bathroom should be equipped with a splash-proof socket, the installation height is not less than 1.3M, and away from the water source, in order to facilitate the comfort and convenience of life, the bedroom should adopt dual-control switch, the kitchen power socket should be set in parallel, control the power on and off, put into the cabinet The power supply of the microwave oven should be turned on and off at the wall setting switch.
All kinds of strong and weak electric socket interface should not be lacking. There should be a power socket and a telephone socket on both sides of the bed. Near the computer desk, the wall of the living room TV cabinet should be set with 3 power sockets and set the corresponding TV. phone. multimedia. Broadband network and other sockets.
The switch box is generally 1.2 meters off the ground, and one room has a multi-purpose socket.
All sockets. The switch should be higher than the ground 300MM, the same room socket. The switch height is consistent (height difference <5MM side-by-side installation is height difference <1MM, and will not be blocked by sliding doors, furniture, etc.
The installation direction of the rocker switch is the same. The lower end is pushed in and the upper end is pressed. The socket switch. When the panel is fastened, the matching screws should be used. Do not use wooden dowel or gypsum board screws instead of damaging the bottom.
Lamps with metal casings, metal casings are reliably grounded: Fire wires should be connected to the center of the screw cap; the spotlights generate a large amount of heat. The lamp holders with yellow wax tubes should be used on the wires. After the wires are connected, the lamp wires should be made. spread.
sound. TV. phone. multimedia. The laying method and requirements of the weak line such as the broadband network are the same as those of the source line. The socket or the cable box and the power socket are installed in close proximity (avoiding the strong electric line), but the strong and weak lines are not allowed to be shared. The distance is 500MM or more.
The sound cable should be used as the bottom box when entering and exiting the wall. The position is behind the speaker, and there is no open line on the wall. When not in use, the sound can be placed in the bottom box and the panel can be covered.
If the customer does not have special requirements, the telephone lines of all rooms should be connected to a single number. If there is a matching box on the floor, the telephone line should be connected to the matching box. At the joint of the multi-core telephone line, the sleeve mouth should be fastened with a tape to prevent the telephone line from getting wet and crosstalk and other faults.
Strong and weak electrical installation quality inspection method: weak wire must be short-circuited, measuring the on-off method at the other end, the power socket is tested by 220V light test, the insulation strength between the wires is measured with a megohmmeter, and the insulation strength between the wires is >0.5 MQ. The telephone line connector must have a dedicated connector.