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About UsHongsheng Wire and Cable Co., Ltd. is a key enterprise in Zhejiang Province specializing in the production of wires and cables, integrating industry, commerce, trade, production, education, and research. Its main production, processes, and testing equipment are all designed and configured according to international standards.
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ProductsEmploy scientific management and quality assurance systems based on GB/T19001—IS09001 and GB/T24001—ISO14001 environmental management systems to organize production management.
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Contact UsWe believe: Great achievements depend on quality. Your satisfaction is our eternal pursuit!
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2021
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04
Cable: Common problems with high-voltage cables due to manufacturer defects
Manufacturer's manufacturing reasons can be divided into three categories according to location: cable body reasons, cable joint reasons, and cable grounding system reasons.
Manufacturer's manufacturing reasons can be divided into three categories according to location : Cable Main body reasons, cable joint reasons, and cable grounding system reasons.
1、 Cable Grounding management system The design of the cable grounding control system includes parts such as cable grounding boxes, cable grounding protection boxes (with sheath protectors), cable cross-interconnection boxes, and sheath protectors. Problems that commonly occur are mainly due to poor sealing of the boxes, leading to water ingress and causing multiple grounding points, resulting in excessive induced currents in other metal sheaths. In addition, unreasonable selection of parameters for sheath protectors or poor quality zinc oxide crystals can easily lead to sheath protector damage.
2、 Cable Reasons for manufacturing problems generally include problems such as eccentric insulation, uneven insulation shielding layer thickness, insulation impurities, protrusion of inner and outer shielding, uneven crosslinking, cable dampness, and poor sealing of the cable metal sheath during cable production.
3、 Cable Joint manufacturing reasons: Previously used types of high-voltage cable connectors included wrapped, molded, and formed types, requiring on-site production work. However, due to limitations in on-site conditions and production processes, air gaps and impurities are unavoidable in the insulation layer, thus easily causing problems. Commonly used types in China are assembled and prefabricated. Cable connectors are divided into cable terminal connectors and cable intermediate connectors. Regardless of the connector type, cable joint failures generally occur in the cable insulation shielding socket, as this is the area of concentrated electrical stress. Manufacturing defects leading to cable joint failures include stress cone manufacturing defects, insulation filler problems, and oil leakage from sealing rings.
Hongsheng Wire and Cable Co., Ltd. specializes in the production of power cables 、copper core wires, wires 、 Cable 、 copper core cables Good product quality, guaranteed. Welcome to discuss!
Wire, cable, power cable, mineral cable
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Guangzhou Baiyun International Airport
2017-09-13
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2021-04-13
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Address: Central Industrial Park, Luqiao District, Taizhou City, Zhejiang Province
Fax: 86-576-82670077
