Wiring and componentsQuestion 433 of 1506

An electrician strips a conductor and nicks the copper. Why is this a problem?

It lowers the voltage rating of the cable
It can cause overheating
It makes the conductor too long
It has no effect on the connection

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Correct answer: It can cause overheating

Damage to the copper reduces its cross-section and heats up under load.

Source: Electrical Fundamentals Competency (Industry Training Authority of BC), 9.1: Conductors

Questions last reviewed: 18 October 2026

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