【 Weak current College 】 home hidden projects hydroelectric installation and waterproof construction

Concealed work refers to the construction process, after the completion of the process, will be covered by the next process, completed after inspection of parts,
　　　　
Do the decoration, the "hidden work" is the key, if there is no "secret project", and surface decoration more beautiful, it is futile. "Secret project" can be divided into water installation, electric installation and moisture-proof, waterproof, etc. Each of these projects are to be ignored, if a link is a problem that could cause serious economic damage, and even harmful to human security. In this, and prepared for the decoration of the owners talk about "hidden work" hydropower installation, water-proof works of construction technology and materials to identify, avoid unnecessary economic losses and damage.
　　　　
How to install the "water" is specification
　　　　
Today's conventional construction are buried in the pipe wall. Water installation is divided into water supply installation and drainage installations, water supply system is mandated to ensure water quality, water quantity and water pressure. Water supply pipe layout is to ensure supply security and convenience of pipeline layout, but also to facilitate the construction, maintenance and appearance. Now some formal construction units used for water pipes are mostly achieved standard jinde, Tianli, RIFENG pipe of PPR, such as licensing, because these materials are of good quality, so costs are expensive, but this is not standardized and construction units the number of non-compliance of composite tube or galvanized pipe security, utility. At the end of the water supply pipe cloth, must be used to suppress machine to 6 to 8 atmospheric pressure to the 0, 6 0, 8MPa "1.5 hour value unchanged, the decline is not Super 0.028MPa, no leakage phenomenon. Cannot detect the original pressure tap water instead of the General construction team, because without this equipment often used this way Tiger get customers. "Didn't do compression test cannot lock. Drain pipe is used to exclude people of sewage in our daily life. Drainage installation should be based on the shortest distance through to export, if the pipe length the gradient should greatly, drainage materials must meet international standards, now the market better materials, Gu, Union plastic cards, plastic cards, etc.-PVC pipe. In the construction of the pipe must be in preventing sewer clog, before construction, on the following points, floor drain well closed protection, prevention of cement, sand, and other sundries. Once the cement, mortar, extremely difficult to block channels, will bring great trouble.
How to install the "electric" calculation specification
　　　　
With the increase of household appliances, electrical requirements are also getting higher and higher, so the electric wiring works must undergo meticulous design electrical engineer will be issued only after the circuit diagram, the construction of the owners live in easy to use, safe. Power line installation on material quality and construction techniques require very high. Wiring materials may be made of wire, PVC wire pipe and line fittings and electrical switches, etc. Because each material has a lot of varieties, the quality of tea, so the prices vary greatly. The wire, the General common wire specifications for 1.5, 2.5, 4, 6 mm square, and each kind of specification and many varieties, such as the BVV (double plastic protection), BV (single plastic protection), ZR-BVV (flame double plastic), ZR-BV (flame retardant single plastic), but rank also varies, with international standards, national standards, also some non-compliance, the price difference of 1-2 times, or even 3-4 times, so I hope that consumers do not covet xiaobianyi. Line pipe layout requirements: illuminating and outlet line to separate the control cables 2.5 sq mm, kitchen with electrical, air conditioning, electricity, massage bathtub, and so on, be sure to use the dedicated line, wire to4 mm square. In the construction of wiring circuits must be up and down, left and right vertical, straight wire must set of pipes and fittings, PVC wire, experiencing cannot be undermined by shear walls or load-bearing walls, etc., whose line is sure to set of paraffin pipe insulation materials. You cannot put a wire directly buried in the cement walls.
In line installation, be sure to comply strictly with "FireWire into the switch, the zero line into the lamp left zero right on the ground in the fire". Construction has been completed, in addition to power check, the construction team would also like to give heads provide a detailed map of the circuit configuration.
How to handle "waterproof" calculation specification
　　　　
"Waterproof treatment" is typically used for kitchen, bathroom, the water does not penetrate into the ground floor and wall. Since returning to the wall screed-30 cm high. Shower and water proof requirements of walls, back height 180 cm. Waterproof coatings to the multicoloured, without omissions, and bonding strong grass-roots level, no crack, no bubble, not peeling. Brushing highly consistent.
Now the specifications and construction units generally uses waterproof material to Davco, Oriental Yuhong, waterproof coating. Its construction method: first off the wall or the ground, clearing team clean, treat after drying, the waterproof coating of quantity in a mixture of stirrer 3-5 minutes, where you need to paint. Please note, some owners of the construction team to shoddy work, using asphalt as an alternative to the general norms and construction units with waterproof coating, is designed to ensure the quality of the project, on the one hand and, on the other hand, the owners are responsible for their own reputation. Because, generally, the specifications and construction units when signing the contract the decoration has a 2 year warranty. If you don't have perfect waterproof material consequences of the construction, by the construction of the units responsible. And roadside team in pursuit of higher profits, Jerry, a gun-for-one place owners as a maintenance problem, go back to looking for, you may even have not found, only suffering from it. Therefore, remind consumers of decorated rooms, the choice of the construction unit must be ever so careful and serious recognition asphalt and other waterproof coating. Coating construction is completed, must be closed water experiments, the kitchen, the bathroom floor drain plug, indoors and not less than 2 cm deep in water, after 24 h to see if the water leakage. Not be closed water experiments, not tile.