Basic House Wiring Colors

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Basic house wiring colors. Never attempt to do it without a good understanding of how it works and safe work practices. In 1893 the first national code of rules for wiring buildings for electric light and power was created and in 1897 the nbfu produced the first national electrical code but colors weren t addressed. Wiring examples and instructions with video and tutorials my site is dedicated to helping you get connected. All nm cables contain the basic black insulation and white insulation wires plus the bare copper or green insulated ground wire.

Non metallic or nm 120 volt and 240 volt electrical cable come in two main parts. Wire size is given in its gauge number. The lower the gauge the larger the wire and the more current it can handle. The color of the sheathing indicates recommended usages.

Wire color codes were finally mentioned in the 1928 edition of the nec. This may be varied region to region duration. Basic house wiring rules. This article is intended to provide basic information and is not a comprehensive discussion of all aspects of house wiring.

Mega classroom 170 954 views. Once the power reaches the house via the service drop or service lateral cables it passes through the electric meter which may be mounted on an exterior wall or may be located inside the home s breaker box the meter records all electricity used by the home measured in kilowatt hours or kwh. Identifying house electric wiring colors written. The outer plastic sheathing or jacket and the inner color coded wires the sheathing binds the inner wires together and its outer markings indicate the number of wires and size of wire gauge within the sheathing.

Jin sunszine holds a ba in communications specializing in film and mass media. Common basic house wiring on new a new construction house showing different examples of wiring including 3 gang box showing how to use 14 3 romex to run to a fan rated box which is able to. Whether it s trying to figure out that rat s nest behind your television set or just simply changing over an electrical wall switch or outlet i m here to help. For example wiring for 20 amp circuits is 12 gauge which is heavier than the 14 gauge wiring used for 15 amp circuits.

Wires running inside nm cable bx cable or conduit are sized according to each circuit s amperage.