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After the cable generates heat phenomenon, if the cause cannot be found in time to eliminate the fault, the cable will produce insulation thermal breakdown phenomenon in continuous power-on operation, which will eventually lead to the interphase short circuit tripping of the cable, and may also cause fire
in severe cases.
The following are the 6 causes of cable heating collected by the cable network for the majority of users:
1.
The cable conductor resistance does not meet the requirements, causing the cable to generate heat generation during operation
.
2.
Improper cable selection type, resulting in the use of the cable conductor section is too small, overload phenomenon in operation, after a long time of use, the cable heating and heat dissipation imbalance caused by heat phenomenon
.
3
.
The cable installation arrangement is too dense, the ventilation and heat dissipation effect is not good, or the cable is too close to other heat sources, which affects the normal heat dissipation of the cable, and may also cause the cable to generate heat during operation.
4.
The joint manufacturing technology is not good, the crimping is not tight, resulting in excessive contact resistance at the joint, which will also cause the cable to generate heat
.
5.
The insulation performance of the cable is not good, resulting in small insulation resistance, and heat generation
will also occur during operation.
6
.
The partial sheath of the armored cable is damaged, and the insulation performance is slowly damaged after water ingress, resulting in a gradual decrease in insulation resistance, which will also cause heat generation during cable operation.
After the cable generates heat phenomenon, if the cause cannot be found in time to eliminate the fault, the cable will produce insulation thermal breakdown phenomenon in continuous power-on operation, which will eventually lead to the interphase short circuit tripping of the cable, and may also cause fire
in severe cases.
The following are the 6 causes of cable heating collected by the cable network for the majority of users:
1.
The cable conductor resistance does not meet the requirements, causing the cable to generate heat generation during operation
.
2.
Improper cable selection type, resulting in the use of the cable conductor section is too small, overload phenomenon in operation, after a long time of use, the cable heating and heat dissipation imbalance caused by heat phenomenon
.
3
.
The cable installation arrangement is too dense, the ventilation and heat dissipation effect is not good, or the cable is too close to other heat sources, which affects the normal heat dissipation of the cable, and may also cause the cable to generate heat during operation.
4.
The joint manufacturing technology is not good, the crimping is not tight, resulting in excessive contact resistance at the joint, which will also cause the cable to generate heat
.
5.
The insulation performance of the cable is not good, resulting in small insulation resistance, and heat generation
will also occur during operation.
6
.
The partial sheath of the armored cable is damaged, and the insulation performance is slowly damaged after water ingress, resulting in a gradual decrease in insulation resistance, which will also cause heat generation during cable operation.
