A wiring diagram is a simplified conventional pictorial representation of an electrical circuit. It shows the components of the circuit as simplified shapes, and the power and signal connections between the devices.
Yellow Wire Light Fixture. Wires are often black for live white for neutral and plain copper for ground. You would normally have the yellow connected to one end of a bulb and the other end will be connected to either a blue or a red wire. The colors white and gray indicate a neutral wire.
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Bit concerned about the colouring though. A double check would be to remove the switch that controls the light and see if it s yellow in there. The colors white and gray indicate a neutral wire. These connect to the black and white wires in the electrical box with the provided larger wire nuts.
Connect the wires from the light fixture to the wires from the house.
So that s unusual as twin earth was always red black in the old days and is now brown blue. Not sure i ve seen red blue cable outside of control cables. The colors white and gray indicate a neutral wire. If a ballast has a ground terminal on it a ground wire should be connected to it. That means it connects to an electrical panel s neutral bus bar.
Yellow Wire Light Fixture. It is basically one half of the source power circuit yellow on one end and either blue or red to the other end. As i said you really should have a licensed electrician install the fixture.
