1. Zhihan high-voltage rubber power cord has a wide range of applications, mainly used in new technology equipment in various industries, such as X-ray machines, electron beam processing, electron bombardment furnace electron guns, electrostatic spray paint, etc. These products are generally power supplies The power of the rubber power cord is relatively large, so the filament current passing through the rubber power cord is relatively large, up to tens of amperes; the voltage ranges from 10KV to 200KV;
2. Most of the rubber power cords are fixedly laid, and generally do not directly contact human beings;
3. The rubber power cord transmits a large amount of energy, and the allowable working temperature of the rubber power cord should be considered;
4. Some equipment is used for short-term discharge at medium frequency, rubber power cord
Must withstand 2.5-4 times the voltage, so consider sufficient electrical strength;
5. Since all kinds of equipment have not been standardized and serialized, the working voltage between the filaments of the same type of equipment and the working voltage between the filament core and the grid core are all different, so they should be selected separately.
6. Structure
1) Conductive power wire core: The wire core is generally 3 cores, and there are also 4 cores or 5 cores; 2) The 3-core rubber power cord generally has two filament heating cores and one control core; the wire and the shield are subjected to DC high voltage; 3 ) The 3-core rubber power cord has two forms: one is similar to the X rubber power cord, and the semi-conductive layer and high-voltage layer are wrapped by phase-separated insulation; the other uses the control core as the central conductor, and the two The filament is twisted concentrically, and then the semi-conductive layer and the high-voltage insulating layer are extruded. : Weaving with tinned copper wire of 0.15-0.20mm, the weaving density is not less than 65%; or wrapping with metal tape; 5) Sheath, extruded with extra soft PVC or nitrile polyvinyl chloride.
