Lighting circuits - switches this is a common method of providing two switches to control one light it is also an easy way to add a second switch to an existing circuit two way switching - plastic switches both switches must be of the two way type, and will have three terminals. Lighting circuit red yellow blue. Opening up an outlet or light switch box, you might be confronted with a bewildering array of wires of different colors black, white, bare copper, and other colors closely intermingle, yet each one has a specific purpose red wires are sometimes used as the second hot wire in 240-volt installations blue and yellow wires are sometimes.
lighting circuit red yellow blue
Any electronic wiring in a uk home features three colours of wiring which are used for three different functions: blue this is the neutral wire brown this is the live wire green & yellow; this is the earth wire since 2006, british law dictates that the colours mentioned above must be used in all new electricity installations. Identifying house electric wiring colors disclaimer: before you begin work on the wiring of an outlet, light fixture, fan, or any appliance, always turn the individual circuit breaker off at the main panel. this will cut power to that particular circuit and prevent the risk of electric shock. yellow and blue. yellow and blue wires are. Yellow and blue are both switch lines which should have red sleeving on them to show they are lives not neutral or anything else. at the light the 3 reds connect together but do not connect to the light. the 2 black neutrals connect to the lights n (blue flex). the yellow (sleeved/taped red) connects to lights l (brown flex)..
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