Understanding Electrical Wire Sizing: How to Safely Carry Current as Wire Length Increases

As the length of an electrical wire increases, it may be necessary to:a) Increase the fuse sizeb) Use a different type of conductorc) Decrease fuse sized) Increase wire size

D

As the length of an electrical wire increases, it may be necessary to increase wire size. This is because as the wire length increases, the resistance of the wire also increases. If the wire isn’t thick enough to carry the required amount of current, it may heat up and become a fire hazard. By increasing the wire size, the resistance is reduced, and the wire can carry more current safely. It is not necessary to use a different type of conductor or increase the fuse size in this scenario. In fact, decreasing the fuse size would be dangerous as it would risk blowing the fuse before the wire has a chance to dissipate enough heat.

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