The new system uses various colored insulated wires such as red, blue, green, yellow, orange, white, brown and grey; each of which has its own specific purpose. This progression underscores the importance of recognising how these colours help. In South Africa, wire colors are identified according to the SANS (South African National Standards) 10142 wiring code. The standard wire colors are as follows: These colors are used for fixed wiring in electrical installations and are important for ensuring safety and consistency in electrical. Electrical color codes are standardized color markings used to distinguish between different types of electrical wires in a system. Extension cords, power (line) cords and lamp cords. In South Africa these wires are identified as follows: Standard wire colours for FIXED INSULATED cables (an assembly of two or more electrical conductors, usually held together with an overall sheath. We follow the IEC 60446 standard for flexible cords in South Africa, which in essence means that all live or active wires have to be brown, neutral wires have to be blue and and earth or grounding wires have to be a combination of yellow and green, we also thought you may wish to know what that.