201808/13
380玩彩网Because of the relationship between molecular structure, general insulating materials have their basically insurmountable defects. Polymer insulators are made up of a group of long chains connected by...
201808/13
Why is it necessary to debug the two core tension to achieve the ideal test value when the twist test is not out of date? 1.Because the two cores\'diameter, electrostatic capacitance, conductor, diame...
201808/13
Concentric stranding—--A wire or core in the middle of a conductor surrounded by one or more spiral layers of strands. Bunch stranded—--The units in the conductor are not arranged in geometric shape...
201808/13
380玩彩网Polyvinyl chloride (PVC): the density is about rho = 1.4, when burning with flame there is black smoke, remove the flame automatically extinguished. According to its performance, it can be divided int...
201808/13
380玩彩网The main characteristics of wire and cable products are: pure conductor metal, no insulation and sheath layer, such as steel-cored aluminum strand, copper-aluminum bus, electric locomotive wire, etc. ...
201808/13
1．Cloth cloth, cotton paper isolation (PAPER) - only play the role of isolation, usually expressed by \"P\". 2．Maillard tape - mainly refers to the polyester film, generally only plays an isolation ro...
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