Nanpi Jiantong Hardware Manufacturing Co.,Ltd. offers a wide range of Deep Drawing services.
Material grade: stainless steel 304, stainless steel 316
steel DC01,DC04,ST12,Q235,SJ235R
galvanized steel sheet DX51D
Stock thickness ranges from 0.30mm-6.0mm for stainless steel
0.30mm-3.0mm for copper
0.30mm-6.0mm for aluminum
0.20mm-6.0mm for carbon steel
Surface finishing: polishing, satin blasted,powder coating, electro plating,anodize
Application: motor housing, metal cover, caps etc.
Deep Drawing Parts,Deep Drawing Sheet Metal,Deep Drawing Steel,Custom Deep Drawing Parts Nanpi Jian Tong Hardware Manufacturing Co., Ltd. , https://www.sheetmetals.nl
1. The installation did not strictly follow the process of cable construction and the problems that were not considered in the process regulations. After the acceptance, DC voltage withstand test resulted in the formation of a back-EMF in the joint resulting in insulation failure.
2, due to poor sealing caused. The middle joint must adopt the sealed structure of metal copper shell plus PE or PVC insulation coating to ensure the solidity of the seal during construction on site, which effectively ensures the sealing and waterproof performance of the joint.
3, high-voltage cable on-site construction conditions are poor, cables and connectors in the factory manufacturing environment and process requirements are high, and the construction site temperature, humidity, dust are not well controlled.
4, the cable material itself and the inevitable defects in the cable manufacturing, laying, terminal production process, etc., by the operation of the electric heat, chemical, environmental and other factors, the cable insulation will be different degrees of aging, and this kind of aging This can cause cable faults to occur.
5. During the cable construction, it will inevitably leave tiny sliding marks on the insulating surface. The semi-conductive particles and the sand on the abrasive cloth may also be embedded in the insulation. In addition, during the construction of the joint, the insulation is exposed to the air and the insulation is also inhaled. Moisture, these all leave hidden dangers for long-term safe operation.
High-voltage cables play a very important role in power transmission. However, some failures may occur for a long time. The following is a summary of the causes of the common failures of high-voltage cables.