PPGI/PPGL(prepainted galvanized steel /prepainted galvalume steel )is also known as pre-coated steel,color coated steel, coil coated steel, color coated steel,pre pianted steel sheet,The PPGI steel coil/sheet made of cold-rolled steel sheet and galvanized steel sheet, subjected to surface pretreatment (degreasing, cleaning, chemical conversion treatment), coated in a continuous manner, and baked and cooled to form a product. Coated steel has light weight, beautiful appearance and good anti-corrosion performance, and can be directly processed.
Prepainted Steel Sheet,Ppgi Steel Sheet,Colour Coated Gi Sheet,Ppgi Sheet,Color Coated Steel Coil Shandong Guanzhou Iron and Steel Group Co., Ltd , https://www.cnshansteel.com
The surface of the high-voltage cable needs to be kept clean and cannot be subjected to pressure, freezing, or moisture by the hot plate. The high-voltage cable must not be bent excessively. The filler inside the high-voltage cable plug is made of a mixture of paraffin wax, rosin, etc. It may be melted by heat. It must be checked in time. If it is found that there is a strong static discharge at high voltage. The sound must first check here. Do not allow insulation oil to erode high voltage cables. If the high-voltage plug is found to have high-voltage breakdown marks are not serious, then you can use a knife to scrape the core wire, the reel must be replaced when serious!
The power cable is a cable that is surrounded by conductors with high-quality insulation materials and various protective layers. Overhead cables are overhead wires that are placed on poles with insulating layers.
It is the same as the main function of the overhead cable, and the power cable is used to transmit and distribute large-capacity power in the power system. Power cables can be laid under a variety of environmental conditions, safe and covert, free from external climate change, and can be less maintenance and durable. Overhead cables shall be laid and placed in the house. They shall be maintained at a certain distance from the trees during laying. Frequent contact with the trees is permitted during operation.
The structure of power cables is relatively complex, and there are many manufacturing processes. The price of products is tens of times higher than that of overhead conductors; therefore, it is generally used in applications where overhead lines are not suitable, such as the introduction of power transmission and distribution lines in cities and industrial and mining enterprises. In the plant's main power line; and across the river railway station, runs through underground tunnels. In fact, the power line is the sum of the overhead wire and the power cable. The overhead wire of the wire tray focuses on the transmission, change, and distribution parts of the power supply, while the power cable focuses on the power distribution and the power consumption.
With the rapid increase of China's economic level, the proportion of power cables is increasing. In the case of Datong, the overhead lines in the central area of ​​Zhongcheng will gradually be changed to covert cable lines. Overhead cables will be used in suburbs and central towns.
High voltage cable maintenance method
High-voltage cables are widely used in data communication, reel city rail transportation industry, automobile industry and shipbuilding industry, etc. However, the requirements for high-voltage cables are very strict, and the safety of high-voltage cables is extremely important! We should pay attention to Its protection! High-voltage cables are also needed for conservation!