Building wiring is the electrical wiring and associated devices such as switches, meters and light fittings used in buildings or other structures. Electrical wiring uses insulated conductors.
Wires and cables are rated by the circuit voltage, temperature and environmental conditions (moisture, sunlight, oil, chemicals) in which they can be used, and their maximum current. Wiring safety codes vary by country, and the International Electro technical Commission (IEC) is attempting to standardise wiring amongst member countries. Colour codes are used to distinguish line, neutral and ground (earth) wires.
A plug board, or control panel (the term used depended on the application area), is an array of jacks, or sockets (often called hubs), into which patch cords can be inserted to complete an electrical circuit. Control panels were used to direct the operation of some unit record equipment. Plug boards were used on some cipher machines, and some early computers.
WIRES AND CABLES AS PER CUSTOMER SPECIFIED