Factors affecting the aging of terminal wires

All of us may have a general understanding of electronic wire. After all, it is a very common species in our daily life because we need it in our daily lighting. From the point of view of the current situation of the domestic electronic wire industry, there is a big difference between the electronic wire production technology of domestic cable manufacturers, the quality of employees, cable production capacity and cable production scale. Harness aging is the most common problem of the harness, explore the causes of harness aging, prevention of harness aging appears to be very necessary, resulting in the most direct cause of harness aging is the insulation is reduced by the breakdown, resulting in reduced insulation which are the main factors: 1. Harness connector failure: Harness connector is the line in the weakest link, by the personnel of the direct negligence caused by the failure of the harness connector occurs from time to time. Construction personnel in the harness processing joints in the process, if the joint crimping is not tight, heating is not sufficient and other reasons, will lead to harness head insulation reduction, thus causing accidents. 2. external damage: now a considerable number of harness failures are caused by mechanical damage. For example: harness installation wiring is not standardized construction, easy to cause mechanical damage; sometimes if the damage is not serious, it takes months or even years to cause damage to the part of the complete breakdown of the formation of faults, and sometimes the damage may be serious short-circuit faults, directly affecting the safety of production. 4. chemical corrosion: harness work in the region of the role of acid and alkali, often resulting in the armoring of the wire harness, the lead skin or the outer layer of the outer layer of the corrosion, the protection of the layer due to Long-term chemical corrosion or electrolytic corrosion, resulting in the failure of the protective layer, the insulation is reduced, will also lead to harness failure. 5. long-term overload operation: overload operation, due to the thermal effect of the current, the load current through the harness will inevitably lead to the conductor heat, so that the temperature of the harness rises. Long-term overload operation, the high temperature will accelerate the aging of the insulation to insulation breakdown. Especially in the hot summer, the wiring harness failure is especially much. 6. insulation moisture: this situation is also very common, for example: the wiring harness connectors production is not qualified and in humid climatic conditions to do the joints, will make the joints into the water or mixed into the water vapor, over time under the action of the electric field to form a water twig, and gradually damage the insulation strength of the wiring harness and failure.

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