Poor quality of power cables can have serious consequences

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As everyone knows, the quality of a product is first reflected in its appearance. No matter what type of product it is, attention must be paid to its appearance during production, with strict control and inspection being applied to it. The sheath is the outer appearance of power cables; its requirements are a smooth and rounded shape, uniform luster, no eccentricity (within the specified limits), no mechanical damage or flattening, and no visible impurities, bubbles, sand holes, or obvious particles in the form of knots or twists. In addition to meeting the aforementioned quality requirements, the thickness of the sheath also has a significant impact on the quality of power cables. Unqualified power cables usually lead to the following problems: reduced service life. After the cable is installed, it remains under electrical tension for an extended period of time, and this generates heat. The allowable operating temperature for the conductors is 70°C, while the maximum temperature at which polyvinyl chloride can be used over a long period should not exceed 65°C. In summer, the operating temperature rises, and this heat is released through the outer insulation layer. An increased thickness of this insulation layer makes it difficult for heat to dissipate, which affects the cable’s service life. Under the influence of heat, polyvinyl chloride undergoes a series of physical and chemical changes, losing its original excellent properties; as a result, its insulating capacity declines significantly, and short circuits may even occur, disrupting the normal operation of the equipment. There is a problem with the cable structure. If the conductor, insulating layer, and weaving density are controlled in accordance with standard requirements, and an appropriate filler is chosen to give it a rounded shape, how can the sheath be so thick? It increases the difficulty of cable laying. Currently, cable installation is mainly done using cable trays or conduits. Many companies require that there be gaps during cable installation to allow heat to dissipate, thereby preventing damage to the cable’s outer sheath; otherwise, it poses difficulties for the construction teams and the cable installation process. In summary, the thickness of power cable sheaths should be controlled in accordance with standards. Jingbo Cloud Commerce’s products not only help enterprises save resources, reduce material consumption, and increase profits, but also ensure the quality of power cables, resulting in high-quality products at competitive prices.