House Wiring

Wiring, or what we call building wiring, is the process of providing power to buildings and structures. Conductors carry electricity, and wiring makes this power available for public use. National and local regulations in a locality have a check on installation of wiring procedures. In some countries a single national body is in charge of electrical installations and safety codes, while in some countries a national technical standard body produces a model electrical code, which is then adopted by the state, city or provincial regulations with slight changes as per their requirements.

House Wiring Methods

The function of wiring safety codes is to give technical, performance and material standards that would allow proper use of the electrical energy. Other preventions that are regulated are electric shock, fire or explosion. Materials required for wiring a building depend on factors like rating of the circuit, type of occupancy of the building, type of electrical system, national and local regulations and conditions in which the wiring must operate. Earlier methods of wiring were single cloth- insulated copper conductors running in interior walls. Another method was re-using of existing gas pipes for electric lighting. Then came Modern nonmetallic-sheathed cables (NMC), consisting of two to four thermoplastic insulated wires and a bare wire for grounding surrounded by a flexible plastic jacket. In industries, conductor bars are assembled with insulators in grounded enclosures. For heavy currents, bus bars are used. A live conductor of this type is a rigid piece of copper or aluminum usually in flat bars. Open bus bars are also used in manufacturing plants and power company switchyards. Such a bus set up can provide up to 50,000 amperes and up to hundreds of kilovolts. Much advancement is being made in wiring methods. The use of this scheme is the ability to remove/add a branch circuit without removing voltage from the whole segment. A fault in any phase jumps to the ground. Some common wiring tools are Lineman's pliers, Needle-nose pliers, wire strippers cable cutters rotosplit multimeter screwdrivers, crimpers, hammers, reciprocating saws, drywall saws, metal punches, flashlights, chisels and adjustable pliers.