YJV power cable manufacturing process
The manufacture of power cables includes many processes and can be generally divided into four main areas:
Conductor manufacturing, including 1) Drawing a wire to a desired diameter;
2) Stranding strands of multiple strands, sometimes requiring re-entrainment;
3) Combination in the manufacture of HV and EHV cables, stranding non-circular strands into a quasi-circular structure;
Insulated core manufacturing, including 1) Three-layer extrusion: Insulated cable cores are formed during this process, including the inner semi-conductive shield, the insulating layer and the outer semi-conductive shield;
2) Cross-linking: can be carried out directly after extrusion (peroxide cross-linking), or after extrusion using separate equipment (wet cross-linking);
3) Degassing: Removal of peroxide by-products by off-line heating, which is usually the basic process for HV or EHV cables, but is also often used for medium voltage submarine cables;
Cable sheath manufacturing, including 1) insulated wire core tape: In this process, the buffer layer, protective layer and water blocking layer are wrapped around the extruded insulation core;
2) Neutral wire stranding: Wrap the copper wire, copper tape or flat copper tape around the cable;
3) Metal sheath: moisture-proof and protective layer of metal;
4) Sheath: The use of a polymer sheath for mechanical protection (protection of metal foil is particularly important) and anti-corrosion effect;
5) Mounting: Use high-strength metal components (steel) to protect cables, especially submarine cables;
Quality control, including 1) raw material handling;
2) routine tests;
3) sampling test;
1. 3d quick scope vision measuring systems is designed to do three-dimensional work piece on the slope, round, bad ditch, columns, ball, dimension, three-dimensional measurements such as blind holes as well as the distance between the elements, angle and other geometrical terms.
2. Coupled with our company's self-developed 3D optical measurement software to achieve rapid detection, at the same time with SPC data analysis capabilities in order to achieve a one-time complete the whole measurement.
3. Measurement data and graphics can be directly converted to Word, Excel
and AutoCAD
to made statement.
Quick measuring machine, One key measuring system, video measuring machine
Dongguan Jaten Instrument Co.,LTD(HK TT:Jaten Technology Co.,Ltd ​) , https://www.jatentech.com