With the promotion of major energy development strategies such as “West Power Transmission to the East†and “Northern Power Transmission to the Southâ€, China’s cable industry is also in a state of rapid development. According to analysis by industry experts, in the next five to ten years, due to the long-term rigid demand brought by China's further urbanization and industrialization, the average annual sales growth of wire and cable industry will reach 4%-8%, and the development and growth will continue to be maintained. The momentum of the cable, however, the shortcomings of the cable itself will seriously restrict the future development of the industry.
Waterproofing is no longer a fresh topic. Water, whether it is tunnels, bridges, roads, buildings or houses we live in daily, cannot be ignored. Home waterproofing is a brand new concept and it is a concept derived from home decoration! Waterproof materials are the basic materials for home improvement projects. Waterproofing is not good and foundations are not. The decoration materials on them will cause many problems and cause pollution to the indoor environment. As far as families are concerned, waterproofing mainly includes kitchens, bathrooms, balconies, terraces, and easily damp walls. Problems such as leakage and mildew caused by improper waterproofing will seriously affect life, and many families suffer from it. With the continuous improvement of people's living standards and living quality, family waterproofing has become more and more important. The variety of waterproof materials and the uneven construction technology, the choice of waterproof materials and waterproofing technology is still a big problem for many families.
Cables are one of the indispensable materials for the development of daily life and industrial engineering. With the rapid development of the buried laying of power cables, the higher requirements for cable protection and the quality management of wires and cables must go through the entire production process. The quality management and inspection department must carry out a thorough inspection of the entire production process, operator self-inspection, and mutual inspection of the upper and lower processes. This is an important guarantee and means for ensuring product quality and improving the economic efficiency of enterprises.
The waterproof method of the cable is divided into two types: longitudinal and radial radial water. The water-blocking yarns, water-blocking powders, and water-blocking tapes that are rarely used for longitudinal waterblocking, and their water-blocking mechanism, contain a kind of water-shrinkable data in the data, when the water is from the end of the cable or from the cable. After entering the shortcomings, the data will meet the water and shrink quickly to prevent the moisture from further spreading along the longitudinal direction of the cable. This completes the goal of cable longitudinal waterproofing. Radial water-blocking is accomplished by extruding HDPE non-metallic sheaths or hot-pressing, welding, and cold-drawing metal jackets.
When installing a cable, it is often necessary to consider its life span. How to protect its service life is very important because the cable is directly out of the road. Therefore, it is particularly important that the outer layer has something to protect. The cable is composed of several or more wires, and the first wire is given one or more turns of insulating tape alone, preferably two turns. Then use professional mica tape to surround the two layers to ensure its compactness. Install the cable glands with more than two layers of tape and make sure the straps are strong. Environmental protection should be done with epoxy resin or other surface treatment. Before use, it must be ensured that it has dried completely. Finally, a layer of heat shrinkable tubing outside the storm road can be used.
The waterproof cable produced by Tianjin Cable General Plant's rubber and plastic cable has good electrical insulation performance under long-term water immersion and relatively large water pressure. The waterproof rubber cable has good bending performance and can withstand frequent movements. Applicable to submersible pumps, coal mines, underwater operations, underwater lights and other water treatment equipment, the product uses high-density plastic with waterproof and other functions. Ordinary cables generally have low resistance to water ingress, while water-blocking tapes or gel-filled cables have certain water-repellent properties, but they have problems such as high manufacturing costs, reduced electrical performance in wet environments, affecting transmission efficiency, and potential fire hazards.
Waterproofing is no longer a fresh topic. Water, whether it is tunnels, bridges, roads, buildings or houses we live in daily, cannot be ignored. Home waterproofing is a brand new concept and it is a concept derived from home decoration! Waterproof materials are the basic materials for home improvement projects. Waterproofing is not good and foundations are not. The decoration materials on them will cause many problems and cause pollution to the indoor environment. As far as families are concerned, waterproofing mainly includes kitchens, bathrooms, balconies, terraces, and easily damp walls. Problems such as leakage and mildew caused by improper waterproofing will seriously affect life, and many families suffer from it. With the continuous improvement of people's living standards and living quality, family waterproofing has become more and more important. The variety of waterproof materials and the uneven construction technology, the choice of waterproof materials and waterproofing technology is still a big problem for many families.
Cables are one of the indispensable materials for the development of daily life and industrial engineering. With the rapid development of the buried laying of power cables, the higher requirements for cable protection and the quality management of wires and cables must go through the entire production process. The quality management and inspection department must carry out a thorough inspection of the entire production process, operator self-inspection, and mutual inspection of the upper and lower processes. This is an important guarantee and means for ensuring product quality and improving the economic efficiency of enterprises.
The waterproof method of the cable is divided into two types: longitudinal and radial radial water. The water-blocking yarns, water-blocking powders, and water-blocking tapes that are rarely used for longitudinal waterblocking, and their water-blocking mechanism, contain a kind of water-shrinkable data in the data, when the water is from the end of the cable or from the cable. After entering the shortcomings, the data will meet the water and shrink quickly to prevent the moisture from further spreading along the longitudinal direction of the cable. This completes the goal of cable longitudinal waterproofing. Radial water-blocking is accomplished by extruding HDPE non-metallic sheaths or hot-pressing, welding, and cold-drawing metal jackets.
When installing a cable, it is often necessary to consider its life span. How to protect its service life is very important because the cable is directly out of the road. Therefore, it is particularly important that the outer layer has something to protect. The cable is composed of several or more wires, and the first wire is given one or more turns of insulating tape alone, preferably two turns. Then use professional mica tape to surround the two layers to ensure its compactness. Install the cable glands with more than two layers of tape and make sure the straps are strong. Environmental protection should be done with epoxy resin or other surface treatment. Before use, it must be ensured that it has dried completely. Finally, a layer of heat shrinkable tubing outside the storm road can be used.
The waterproof cable produced by Tianjin Cable General Plant's rubber and plastic cable has good electrical insulation performance under long-term water immersion and relatively large water pressure. The waterproof rubber cable has good bending performance and can withstand frequent movements. Applicable to submersible pumps, coal mines, underwater operations, underwater lights and other water treatment equipment, the product uses high-density plastic with waterproof and other functions. Ordinary cables generally have low resistance to water ingress, while water-blocking tapes or gel-filled cables have certain water-repellent properties, but they have problems such as high manufacturing costs, reduced electrical performance in wet environments, affecting transmission efficiency, and potential fire hazards.
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