1.  wiring(n = noun.artifact) - a circuit of wires for the distribution of electricity;
is a kind of circuit, electric circuit, electrical circuit
has particulars: light circuit, lighting circuit
Derived form verb wire₁

2.  wiring(n = noun.act) - the work of installing the wires for an electrical system or device;
is a kind of manual labor, manual labour
Derived form verb wire₅

1.  The act of one that wires anything. [Webster 1913 Suppl.]

2.  The wires or conductors employed in any system in which electric voltages or current are transmitted between components. [Webster 1913 Suppl.]

wiring, n.
1 a system of wires providing electrical circuits.
2 the installation of this (came to do the wiring).

wiring diagram