Electrical Wiring For Dummies

House wiring isn t difficult but you do need to keep in mind that it may be dangerous which is why it s essential to follow the safety rules at all time.

Electrical wiring for dummies.

Electrical wiring in the us follows the same basic color codes. Red and black wires denote live wires white wires serve as the ground and blue yellow or other colors are used for switches or other specific purposes. Circuits can get much more complex consisting of dozens hundreds or even thousands or millions of separate components all connected with conductors in precisely orchestrated ways so that each component. Wire size is given in its gauge number.

Draw a sketch of your room that shows lighting switch and outlet locations. Wiring examples and instructions basic house wiring instructions how to wire 2 way 3 way and 4 way switches. For example wiring for 20 amp circuits is 12 gauge which is heavier than the 14 gauge wiring used for 15 amp circuits. For example a very simple electrical circuit consists of three elements.

Usually the wiring which you are installing will be affixed to the final outlet in the current run of. Wiring examples and instructions. Electrical house wiring mistakes can be deadly so make sure you obtain a permit from your local building department and have an electrical rough in inspection scheduled with a building official when you re finished. For example 14 2 gauge electrical wire is rated to a maximum of 15 amps and should not be used with any circuit breaker larger than 15 amps 12 2 gauge wiring is rated to a maximum of 20 amps.

Wires running inside nm cable bx cable or conduit are sized according to each circuit s amperage. A battery a lamp and an electrical wire that connects the two. Cable is an assembly of two or more wires in a single jacket. The lower the gauge the larger the wire and the more current it can handle.

Electrical wiring how to replace ceiling light fixtures audio transcript ceiling fixtures come in lots of different shapes and there are many different ways to attach them. Review your plan with the inspector and ask. Ampacity and wire insulation according to the electrical code the overcurrent protection shall not exceed 15a for 14 20a for 12 or 30a for 10 however insulation is a factor in locations above 86 f wire and circuit breaker sizing for motor loads. Connect to the outlet.

Electrical wire and circuit breakers are designed to work in tandem with one another and each must be of a proper corresponding size. When working with electricity. Choose wisely the electrical wires as it s wise to use the right size wire for some electrical devices. Wires are the individual insulated or bare conductors inside the jacket.