From the Workshop: Electrical
A basic understanding of electrical systems and the relationship between current, voltage and resistance helps immeasurably when working on vehicles and machinery.
Anyone who has ever fitted an accessory, repaired a wiring harness or modified machinery has probably had to face the problem of what size wire to choose. Selecting the correct size of wire to use for a particular job is a little more complicated than it may first appear and there is no simple “rule of thumb” which can be easily used. While it is often safe to unreel a length of heavy duty cable which is sure to carry the current required, it is also wasteful, bulky, and the cost can quickly add up.
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