Parts For Electrical Circuit Wiring

Wire Color
All wires have color-coded insulation.
Wires belonging to a system's main harness will have a single color. Wires belonging to a system's sub- circuits will have a colored stripe. Striped wires use the following code to show wire size and colors.

Abbreviations are used to indicate wire color within a circuit diagram.
Refer to the following table.




Wire Color Coding




Wire Size
The size of wire used in a circuit is determined by the amount of current (amperage), the length of the circuit, and the voltage drop allowed. The following wire size and load capacity, shown below, are specified by AWG (American Wire Gauge) (Nominal size means approximate cross sectional area).




Wire Size Table