Factors affecting the current carrying capacity of cables
The current carrying capacity of the wire and cable refers to the amount of current carried by the line conductor. During the use of the wire and cable, the maximum current required by the load must be less than the long-term allowable current carrying capacity of the wire in the air. So, what are the specific factors that affect the current carrying capacity of wires and cables? Guangdong Rifeng Cable Co. Ltd Core area Under normal circumstances, the core area (cross-sectional area of the wire) is proportional to the current-carrying capacity, that is, the larger the core area, the greater the current-carrying capacity. Conductor material The current carrying capacity of different materials under the same conditions: silver>copper>aluminum. If copper wire is used to replace aluminum wire, the current carrying capacity can be increased by 20%-30% under the same specifications. Insulation material The temperature resistance of commonly used insulating material