Guangdong Cable Factory Co., Ltd. Analyzes Causes of Cable Aging

When encountering cable aging, there are usually corresponding measures in place. Let's summarize them together.

1.Insulation moisture. This is also a common issue, usually occurring at cable joints that are directly buried or placed in conduits. For instance, poor quality cable joint manufacturing or making joints in humid climatic conditions can lead to water ingress or the presence of steam in the joints over time.rWater trees form under the influence of an electric field, gradually damaging the insulation strength of the cable and causing faults.

2.Chemical Corrosion: Cables buried directly in areas with acidic or alkaline effects often suffer corrosion of their armor, lead sheath, or outer sheath. The protective layer, after long-term exposure to chemical or electrolytic corrosion, becomes ineffective, leading to reduced insulation and cable failures. In our unit, the cable corrosion situation is quite severe.

3.Long-term overloading operation. Overloading causes the conductor to heat up due to the thermal effect of current as it passes through the cable. Simultaneously, the skin effect of charges, the eddy current losses in the steel sheath, and the dielectric losses also produce additional heat, leading to an increase in cable temperature.

4.Cable joint failures are a common occurrence due to direct human error (poor construction). As cable joints are a vulnerable part of the cable line, any issues during the joint-making process, such as loose connections or insufficient heating, can lead to reduced insulation of the cable ends, thereby causing accidents.

Guangdong Cable Factory Co., Ltd.(Original State-Owned Guangdong Cable Manufacturer)Established1968Year,After more than four decades of development,Currently one of the largest professional manufacturers of cables and wires in South China.1995Year12No Chinese content provided.3The company has restructured Guangdong Cable Factory Co., Ltd.