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1. Except for the design specification, the hot and cold water pipes are made of aluminum-plastic pipes, the supervisors are unified as Ф 20mm, and the branch pipes are Ф16mm; check whether the pipes are unblocked before installation;
2. It is not allowed to change the nature and location of the waste, sewage and drainage of drain pipes, floor drains and toilet bowls. (Except in special circumstances) The drain pipe must have a water trap to prevent odor emission;
3. The steel pipes are all threadedly connected and lined with hemp, thick lacquer or raw material. Pipe acceptance should be consistent with pressure> = 0.6Mpa; voltage regulator "20 minutes of pipe internal pressure drop <= 0.5Mpa as standard; After the water pipes are completed, they shall be temporarily sealed to prevent choking;
4, the pipeline installation should be horizontal and vertical, laying firm, PVC pipe must be glued tightly, the slope meets 35/1000 requirements;
5, the pipeline installation shall not be close to the power supply, and under the wire pipe, crossing over the bridge should be used excessively, the distance between the water pipe and gas pipe should not be less than 50mm;
6. The water pipe leading to the balcony must be equipped with a valve, and the joint should be avoided in the middle;
7, the hot and cold water pipes exposed head spacing must be determined according to the actual size of the faucet. Two heads (surface mounted head must be extended with galvanized pipe 30mm sleeve to ensure that the triangle valve is installed in parallel) must be on the same level; exposed head protruding plaster should not be less than 10-15mm, and fixed with cement mortar The depth of hot water management into the wall should ensure that there is a protective layer of cement mortar more than 15mm outside the pipe, so as not to be cracked by hot glaze (except in special cases). Long-distance hot water pipes must be treated with insulation materials.
8, the exposed header normal height (all net size)
9. When the pre-project is completed, it is necessary to install 1-2 temporary faucets for the construction site (the low faucet is the best period), and provide a list of required materials (specifications, quantities, and types) for customers to arrange their own time for purchase.
10, sanitary ware installation must be solid, not loose, drainage is smooth, no leaks everywhere connected seal; after installation is complete, water for 2 hours, self-use visual inspection and feel test again;
11, the toilet installation must be connected with oil lime or silicon rubber, butter volume seal, is strictly prohibited with cement mortar, water pool, bathtub drain must be connected with a hard pipe;
12. All sanitary ware and fittings should be inspected before installation and after they are installed to see if there is any damage. After the installation of the project, all water ware should be checked thoroughly.
First, electric process:
1. The size of the distribution box set for each household must be determined according to the actual need for opening; each household must be equipped with a total open (two poles) + leakage protection device (the required position is 4 single pieces, the circuit breaker is open. For qualified products), separate air routes and wiring shall be set up in strict accordance with the figure, and use of old roads shall be marked for air-to-air openings. Distribution box installation must have a reliable ground connection;
2, with the landlord to determine the switch, socket brand, verify whether the doorbell, door lamp power supply, proofreading drawings with the scene is not in conformity with the customer's consent should be adjusted to pay the signature;
3, the electrical wiring are used in the policy BV single-strand copper wire, ground wire is BBR soft copper wire, wear PVC buried (hollow floor, except for the in-situ roof panel) to the horizontal and vertical, walk along the flat top corner, no ceiling However, there are 80mm cream Yinjiao line time limit walking 20mm, Ф 15mm each one, prohibiting the ground discharge pipe alignment; strictly according to the map wiring (lighting trunk 2.5mm2, branch line 1.5mm2) no joints and kinks in the pipe, all with new Line, the old line is delivered to the landlord upon acceptance. It is prohibited to directly bury the wire in the ash layer (BVV sheathing wire is used when the mud is contaminated);
4. The total cross-sectional area of ​​the conductors in the pipe must not exceed 40% of the internal diameter of the pipe. Several of the same type of lighting can be threaded into a single tube, but the total number of wires in the tube must not exceed 8;
5. The incoming lines of telephone lines, television lines, and computer lines must not be moved or closed. It is strictly forbidden to install weak wires and wires in the same pipe (including through switches, socket cassettes, and cassettes therefor). The pipelines are straight from the corners of the floor. ;
6. It is forbidden to change the position of the gas pipeline and header at will. The same plane between the conduit and the gas pipe shall not be less than 100mm, different planes shall not be less than 50mm, and the distance between the electrical socket switch and the gas pipe shall not be less than 150mm;
7. The reserved wire length in the cable box is 150mm. The flat top reserved wire must be marked with a label, the wiring is the phase wire into the switch, the neutral wire enters the lamp head, and the zero wire enters the lamp head. When facing the socket, it is the left zero and right phase ground; The switches and sockets must be installed securely and in the correct position, close to the wall. In the same room, the box is on the same level;
8. The regular height of switches and sockets (calculated in the old floor) must be set as a unified standard when installing. The conventional installation height of the switch is 1200-1300mm, and the socket is as follows:
Type: Ordinary Split Air-Conditioning Vertical Air-Conditioned Room TV Soot Machine Head Light Plug Kitchen Socket Special Socket
Height: 300 2200 300 700 2200 600 1100 Actual
9. In the pre-project construction, install a temporary lighting lamp for each room, install one outlet, install the distribution box and protection switch, and turn on all the power, and draw the wires and pipes. And provide a list of late materials (specifications, brands, quantities, types), to facilitate the landlord to arrange their own time to buy;
10. Lamps, plumbing, kitchen and bathroom hardware distribution, anti-fog mirrors (ordinary mirrors installed by carpenters) should be inspected after entering the market to see if there is any damage.
11. It is forbidden to carry live work (in special cases, one person must be present during live work). After the installation of the project, all lighting fixtures, electrical appliances, sockets, switches, and meters shall be turned off for power test inspection, and their positions shall be accurately marked on the distribution box and arranged in order.
12. Painted lighting, sockets, weak electricity maps, and pipelines shall be printed and mapped with the designer after approval of the concealed project and submitted to the engineering department and the customer (leaving papers);
13. The squad leader must work on the site, be present at the time of acceptance, and should do a good job of clean-up before the completion of the early and late phases of the project;
14. Before the paint enters the market, it shall conduct a full review of the strong electricity and weak electricity.
NVC lighting brand outlet switch lighting cement appliance kitchen ceiling
Chuck Flap Wheel
Chuck type flap wheel is a kind of coated abrasives, each product is glued with hundreds of gauze sheets.
The abrasive is alumnium oxid, and based on cloth, which is made into gauze through assembly line, and then is made of gauze lamination and full resin paste.
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