18 details to be noted for acceptance of hydropower projects (attached to previous winners)

Although the acceptance of hydropower projects is subject to professional supervision and inspection, the knowledge is of course reassuring in its own hands. How can one become an expert with professional supervision? Take a look at these 18 hydropower acceptance points that need attention.

What does the hydropower project check first? Pipes, lines Laying whether compliance; to know that hydropower is hidden works, laying operation if there is a problem, when the latter construction, did not confirm the location of the water tubing embedded wire, it might cause great distress to the construction, pipe burst , leakage, and then think about if there is water seepage later, etc., repair and lift the floor of the big action of the floor tiles are all their own money.

Details of the problem: "Horizontal vertical and horizontal" has always been the principle of hydropower laying that Xiaobian repeatedly emphasized. Whether it is beautiful or industrial management, the switch is generally about 140 cm from the ground, and the height of the socket and the ground is 30 cm.

This is also a cliché detail. The construction of the sewer pipe should be protected and closed before construction to prevent construction debris and other debris from falling into the pipeline.

Details: The closed protection of sewer pipes is a project in the hydropower construction process.

Remember the text of the book “Begging to Pass the Load-bearing Wall” by Xiao Bian? There are many people who like to start on load-bearing walls and feel that their existence is simply an ugly eye. Although the current rubbish slag project is not a strange thing, there are still a few such incidents. The existence is reasonable. Even if a line pipe is laid on the load-bearing wall, it will affect the weighing structure of the whole house, not to mention the impact. The big action even knocked off.

Details: In order to "move the knife" to the bearing wall, please use the insulating material of the yellow wax tube instead of the PVC tube. Because of the thin relationship, the cement layer on the bearing wall can be cut open.

Slotting is also very particular. According to industry regulations, the horizontal slotting can not exceed 1 meter, because horizontal slotting can easily lead to sinking of the plaster layer due to gravity, leading to crack problems in the future.

Details of the problem: The industry regulations for slotting walls are vertical slots, and the length should be moderate when slotted horizontally.

This is an industry norm, rejecting the behavior of each group of wires without separation: FireWire, neutral wire, and wires are red. How do you troubleshoot problems later?

Details of the problem: FireWire is red and green; neutral line is blue, and ground is a two-color line. In the same room, FireWire must use the same color.

Look at your home worker's threading. The number of casing strings should not be too much. If the wire bushing is full, the heat emitted by the wire is hardly distributed, and short circuit is not impossible. If there is a problem in the later period, the cable will be pumped and how can it be repaired?

Details of the problem: The wire area within the casing cannot exceed 40% of the casing section. The 16 mm and 20 mm diameter wire tubes respectively wear 3 and 4 wires.

Cement fixing is not desirable, not only hinders the vertical connection between the wire bushing and the cable box interface. If there is a problem that needs to be replaced, how should the cable be repaired?

Details of the problem: know cup comb? This word seems a little strange, right? When the wire bushing is connected with the cable box, it will be seen, which can protect the relative loose space of the wire and facilitate the maintenance and replacement. The length of the wire in the wire box is preferably 15 cm.

This year, even the construction team of Lianyungou will not put the strong and weak electricity in the same casing. This is really common sense. Do the consequences still use Xiaobian again? Although this looks beautiful, but as a result of strong and weak electrical interference together, you certainly do not want to know.

Details of the problem: strong and weak electricity to maintain a distance of 50 cm or more to prevent mutual interference.

Home can not be unified use of 2.5 mm square cross-section wire, Shenma? Cross section 2.5 square millimeter What does it mean? Xiaobian has the opportunity to make a scene comparison. The thicker the cross-section of the wire, the greater the amount of power it bears.

Details of the problem: home decoration generally use 2.5 square millimeters of wire, and some high-power lines such as air conditioning, etc., you should choose 4 square mm of wire, and the wire in the casing should not have connectors and so on.

 

Wire casing laying provisions, should not be too tight, resulting when paving tiles, cement gap can not fully penetrate the wire casing, which is one of the reasons tile hollowing phenomenon.

Details of the problem: The distance between each casing is about 1 cm.

Water pipes, wire bushings and gas pipes cannot coexist in the same slot. If water pipes and wire bushings are connected together, the water pipe leaks or water vapor is generated on the surface of the hot water pipe. You understand that there are safety hazards in gas pipes and wire bushings and hot water pipes.

Details of the problem: wire, water pipes and gas pipes are embedded in separate slots. Electricity went up and the water went down.

Taking into account the problem of installing faucets and showers, the distance between the hot and cold water pipes is too close, which can cause the faucet's angle valve to fail to install.

  

Details: The distance between the hot and cold water pipes is more than 5 cm. The distance between the hot and cold pipes of the shower outlet is approximately equal to 15 cm. The outlet of the pipes remains the same horizontal line.

Crossing the water pipe up and down requires the use of a bridge bend to avoid deformation of the water pipe after it is pushed.

Details of the problem: When observing the crossover of pipes, whether there is a bent joint or not to avoid water leakage.

Water line pipe can not avoid crossover. This problem has always been emphasized by Xiaobian. If the pipe is laid on the electric pipe, if the water pipe appears condensate or leaks, there may be a series of chain reactions such as short circuit and tripping.

Details of the problem: cut the water pipe, heard the bridge bend to exchange the position of the water pipe and the wire bushing, the wire is in the water.

In the blank room, when the drain pipe is not installed with the trap, when the kitchen or toilet is changed later, the trap must be installed to avoid odor.

Details of the problem: The location of the water trap may be installed under the caisson. When checking, please note whether the missing trap has been installed.

General household bathroom sockets do not require high public bathing facilities and must have moisture-proof and waterproof functions, otherwise it will cause great potential safety hazards.

Details of the issue: Is it necessary to install splash-proof covers for home use? This depends on personal circumstances and there are no mandatory requirements.

Completion test water pressure is the only way to test for leaks in water pipe fittings. This is the most critical step in hydropower engineering and is indispensable. Mainly through the pressure of the water pressure in the water pipe, check whether there is leakage of each joint of the water pipe.

Details of the problem: The state requires that the time for the pressurization test be 24 hours. It takes half an hour for the pressurization test.

The old-fashioned problem, the professional operating procedure is: Record video or take pictures of each detail of the completion node of the hydropower project, and file and deliver it.

The details of the issue: There may be relatively more documents and checkups that may be signed. Attention should be paid to the details. After all, if there is a problem with hidden works such as water and electricity, it will not only make the wallet thinner, but it will also be a hidden danger to personal safety. (This image is from the network)

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