Module three: Core Electrician's Tools

Crimping Pliers 

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Crimp Connectors Come in two different types, Insulated and un-insulated. The insulated connectros are characterised by having a plastic jacket over the connection between the crimp and wire, whilst the uninsulated variant is just bare metal, primarily used for wiring earth connections.

insulated

uninsulated

The insulated jackets are actually colour coded, where the colour of the jacket denotes the gauge of wire it corresponds to.

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