(a) First of all, let's talk about the water supply and drainage concealment project. Check the contents of the following three aspects:
Water pipeline leaks
PP-R pipe installation layout should be reasonable, horizontal and vertical, and pay attention to the pipeline shall not be close to the power supply, and the distance between the shortest distance from the power supply is 0.2 cm, the connection between the pipeline and the sanitary appliance must be close, and no leakage can be found through the water test.
Whether the surface drainage is smooth
Toilets and kitchens are the main places for drainage, so the ground leveling should have a certain slope (2%) to ensure that water collects on the ground into natural water flow and eventually flows to the floor drain. However, it should be noted that the gradient cannot be overemphasized for the sake of smooth water flow, because the slope is over-sloped, which can affect the aesthetics and non-slippage.
Waterproof layer waterproofness is good
Kitchen and back walls are higher than other rooms in terms of waterproof requirements. Waterproof paint should be brushed to 1.8 meters high, and other rooms should be 0.3 meters high.
(b) There are two issues that need attention in wire and cable engineering:
Is the PVC pipe connection tight?
Power lines must wear PVC pipes when they are embedded in walls, ceilings, floors, or floors. There should be no kinks in the pipes. The bent position of the wire protection tube should use the matching elbow tool or matching elbow, and there should be no folds.
PVC pipe protection
After the ground circuit is laid, wood shall be placed on both sides of the laid PVC pipe, or slope shall be made with cement mortar to prevent the PVC pipe from being walked over due to walking back and forth during the construction of the worker. The distance between strong and weak electricity should be about 50 centimeters to reduce the electromagnetic interference between them and prevent accidents.
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The new Stainless Steel Wire Rope should not be used immediately under high speed and heavy load conditions, but should be run under low speed and medium load conditions for a period of time, so that the new wire rope can adapt to the use state first, and then the speed of the wire rope can be gradually increased to lift the load. That is, wire ropes must go through an initial break-in stage before high-speed, heavy-duty work.
When using stainless steel wire ropes and pulleys, care must be taken to prevent the wire ropes from jumping out of the pulley grooves. If the wire rope is still used after it is removed from the wheel groove, the wire rope will be deformed, kinked, broken wires, and broken strands. This will seriously shorten the service life of the wire rope. If the rope breaks, it usually has very serious consequences.
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