A single pole is where the switch is located. There is 3 wire cable that leads to a light that is connected to other lights by their own switches.
Does it matter which wire goes where on a 3-way light switch?
It makes no difference which traveler wire goes to which traveler terminal on the switch; the traveler terminals are interchangeable. ... The other wires in a circuit with 3-way switches are the neutral (usually white) and ground (usually bare copper or green).
Why are there 3 wires on my light switch?
The 2 wire source feeds to an adjacent switch for a different light which then feeds this switch with 2 wires. The switch in question is a single pole. From it, there is 3 wire cable that leads to a light which then connects to other lights controlled by their own switches.12 nov 2017