UGEFP high-voltage rubber cable bending resistance
1: Move frequently. The work needs to be moved frequently, requiring a good wear resistance of the jacket. In addition to carrying electric drills, electric drill cables are dragged and require certain tensile strength. In the work, the extractor cables are continuously rolled on the unit and the winding shaft is dragged on the ground.
2: Often bent and twisted. Electric drill cables and extractor cables are the most serious. In particular, the UGEFP high-voltage rubber-jacketed cable is connected to an electric drill or a mining machine and is subjected to bending, torsion, and tension. UGF high-voltage rubber sheathed cable is required to have good flexibility and resistance to multiple bending and twisting.
3: Mechanical external damage. The cables used in vegetable-growing areas are easily damaged by fallen ores or rocks, or by large ore and other equipment (such as mine cars) and materials, and they cause electrical short-circuits by flattening cables. In mine cable accidents, the ratio is the highest.
4: difficult to cause combustion. Coal mines and other mines have gas, explosive and flammable. It is required that the internal insulation of the cable is not likely to cause sparks and ignite after being damaged; the cable does not burn, so as not to expand the scope of the accident.
5: Good electrical performance and safety protection system. The mine is extremely humid and watery. The UGEFP high-voltage rubber sheath cable is in direct contact with the workers; therefore, the cable requires sufficient electrical strength and good insulation properties. When external mechanical damage occurs and an electrical short-circuit accident occurs, a sensitive and reliable power-off protection system should be used to cut off the power in time; therefore, priority is given to the development of shielded cable types.
6: Poor handling conditions in the underground require cables that are light, small, easy to use, and easy to overhaul.
7: UGEFP high-voltage rubber sheathed cables for open-pit mines are required to withstand weather aging.
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