1. Electric Wire Pipe After the PVC pipe is roasted on the flame, the self-igniting fire can extinguish quickly to avoid the spread of the flame and effectively protect the line in a long time.
Road, to ensure the operation of the electrical control system.
Can withstand high pressure without being broken down.
Effectively avoid leakage, electric shock hazard PVC pipe has general acid-base performance, at the same time, because the PVC pipe does not contain plasticizers. Therefore, there is no pest hazard.
Can withstand strong pressure, suitable for surface mounted or concealed in concrete.
Due to the different pipe diameters of PVC pipes, the commonly used accessories for wire conduits have different calibers and should be matched with the same caliber.
According to the wiring requirements, the types of pipe fittings include: three links, elbows, box connectors, connectors, pipe cards, reducer fittings, surface mounted three links, surface mounted elbows, and junction boxes.
Wireway Handling Precautions The total wire cross-sectional area of ​​the wire should not exceed 40% of the inner diameter of the wire tube when laying the wire through the tube.
When designing wires, the wires and signal lines must not pass through a single wire tube to avoid mutual interference. (Separation of strong and weak electricity)
The wall of the pipe is ≥ 1.0, the line pipe must be fixed in the line slot, and the line is not horizontal to vertical. The line must be laid and put through the line pipe. The Moon Bay must not exceed 4, and the connection with the transition box is over. The line pipe is directly connected. , interface glue, use the tube card connection
Second, the wire 1. When you buy wires to see whether the wire meets the National Electrotechnical Commission product quality approval, whether it meets the power rating requirements.
2. Look at the quality of the copper material of the copper core package. The better the quality, the lower the probability of leakage.
3. Look at the length standard of each coil, whether the weight is sufficient or not, and the operating temperature is -30 to +70 degrees Celsius.
4. According to different uses choose the square of the corresponding wire, grounding with two-color line, lamp first use white, wire box wire surplus ≥150mm, and gas pipelines, water pipes in the same plane spacing ≥100mm, different plane ≥50mm, wiring shall not Splice
5. For fire protection, maintenance and safety, it is best to use the single-stranded copper core wire with the “GB†plastic or rubber insulation protection layer of the Great Wall logo. The wire slot area is generally 2.5 square millimeters for lighting and outlets. The line shall not be less than 4mm2. The green and yellow color lines shall be used for the connection lines, and the red, white, black and purple shall be used for the switch lines (fire lines). However, the color of the thread used in the same home improvement project should be consistent
Building materials knowledge villa design NVC lighting switch socket electrical home improvement
Stainless steel nuts are components that tightly connect mechanical equipment, and can only be connected by screws on the inside, nuts and screws of the same specification. For example, M4-0.7 nuts can only be combined with M4-0.7 screws. (In the nut, M4 means the inner diameter of the nut is about 4mm, and 0.7 means the distance between the two threads is 0.7mm. );
The same is true for products made in the United States. For example, a 1/4-20 nut can only be combined with a 1/4-20 screw. (A 1/4 finger nut has an inner diameter of about 0.25" and 20 fingers have 20 teeth per inch. Features of Stainless Steel Round Nuts
Stainless steel nuts have the advantages of not easy to rust, anti-corrosion, thermal conductivity, and strong electrical conductivity. Another major use is injection, where it is embedded in plastic parts after heating, or injected directly from a mold.
Although many people may have used this stainless steel round nut, they do not really realize the importance and advantages of this nut. According to the introduction of the article, you should be able to understand what kind of characteristics this nut has. When a nut needs to be used in the future, it should be considered that such a nut plays a more important role.
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Jiangsu Hongze Stainless Steel Wire Rope Co., Ltd , https://www.hzrope.com