Hydropower installation and construction on the former have to pay attention to what matters, and I believe that we have doubts in this respect in working life, small hydropower installation company deep below the peak of equipment for everyone to talk under water and electricity before installation and construction points to note, we want to help.
1, before the first construction must have electrical (strong, weak), water supply and drainage design and construction plans.
2, is strictly prohibited without any protection wire directly laid in the walls, in the floor, ceiling or under the floor.
3, the line voltage is different, different circuits, different signals is prohibited to wear in the same conduit.
4, the lamps should be installed after the paint is finished. The installation of lighting on a brick structure, prohibited the use of wedge, application hooks, bolts or expansion bolts. Light fixture bolts (or screws) of not less than two. Lamps can not be installed on a combustible member.
5, the switch lights and electrical equipment be sure to install the "phase line" (ie, control line). Otherwise, after switching off the lights off and still live electrical equipment, can lead to shock events.
6, power system protection, there are two ways: ground zero protection and access protection, China is generally taken by grounding protection. Note that the same system is prohibited to employ both protected mode, otherwise it will cause accidents.
7, prohibit the use of mobile bedside switch. If the fixture is to use screw caps, the screw caps should be connected to the center of the tongue control phase.
8, each line interface should be smooth, even the board should be firmly connected. Power interface box into the box parts should be protected ring (lock nut) protection.
9, the wires for future updates and maintenance, buried in the wall, ceiling or underground conduit, its corner bend curvature (ie, cold bending radius) should be 5 to 10 times the diameter of the conduit.
10. Do not connect the wires in the conduit, that if the wire is not long enough need to take a long, wire joints in the conduit can not, should generally be in the switches, sockets, lamp boxes, terminal box.
11, conduit should choose a certain size (thickness), not only to make the wires into the dress, but also to leave enough clearance so that the heat conductors through the large current generated can be dissipated. Than the average cross-sectional area of the wire threading pipe cross-sectional area of 1/3 ~ 1/2. The non-wire conduit blocking real.
12, can be used to water PP-R pipe, brass and so on.
13, Concealed water supply pipes must strictly check all joints are installed tightly and firmly, to the right, then a pressure test, after test the water for some time before buried. Pressure test index is generally between 0.8mpa-1.0mpa appropriate.
14, the transverse drainage pipe should have a certain slope, socket connection tight, to ensure no leakage. Fixed pipe bracket elevator pitch reasonable, firm.
15, plumbing fixture installation location should be accurate, branched, bracket smooth and firm. Floor drain should be installed at the lowest point of the ground, and the concave surface 5mm. Toilet nozzle is connected with the ground or sealing sludge or silica, not to use cement, cement expands causing the bottom of the toilet crack damage. 16, the cold, the hot water tap in the hot water tap should be installed on the left side. Electric water heaters should be grounded protective devices, beginning with the gall bladder should be excluded when the air filled with water before powering on.
Kunshan City Development Zone peak deep water and electricity equipment installation Ltd. is a mechanical and electrical installation, installed hydropower project, high and low voltage electrical installation, cooling tower, chiller, air compressors, industrial stainless steel pipes, industrial pumps, air duct, Busway high and low voltage distribution cabinet installation in one of professional installation companies, central air conditioning and clean room planning and construction. |