Electrical Wire Colour Standards The USA have their own wiring colours for electrical circuits. UK electrical wiring colours have changed in the past so it is essential you can tell difference between old wiring colours and new colours. USA Wiring Colours · Phase 1 - Black · Phase 2 - Red · Phase 3 - Blue · Neutral - White · Ground - Bare wire, green, or green with yellow stripes. When Did the New Wiring Colours Come In? · The earth wire will be green and yellow (or sometimes bare in old systems). · The live wire is brown in new systems and. EU Color Code for Electrical Wiring Electrical Wiring Colours, Ac Wiring, In this article you can know about standard electrical wiring colour code used. In Colour Therapy, Red, Orange, and Yellow are referred to as magnetic/warm colours - Blue, Indigo and Violet are referred to as electric/cool colours. Find electric colours stock images in HD and millions of other royalty-free stock photos, illustrations and vectors in the Shutterstock collection. Wire Colour Changes for 3-Core and Earth Cable · The live Red becomes Brown · The additional Yellow conductor becomes Black · The Neutral Blue becomes Grey · The. Discover the IONIQ Electric, the next generation of electric zero-emissions driving. View its profile, specifications and book a test drive today! when electrical wiring colours changed in the UK; What you should do if your house has old.