How to do home electrical wiring

By: Larry Angell


I get several visitors at my web site asking questions about electrical home wiring and different home wiring methods and projects. Their greatest concern is if they should attempt the electrical project or hire it out to professionals.
Because of the housing crash and financial market meltdown, Im observing that many people cant get construction loans to hire contractors to do the home construction for them. I see many people doing the work for themselves out of necessity and not only to save money.
Most homeowners dont have a problem with things like outdoor siding and putting in doors and windows, but they are often doubtful about electrical home wiring.
First of all, the most important thing to observe is safety. All home electrical work thats done needs to be on disconnected circuits. The next thing to understand is that all electrical wiring jobs need to be inspected whether its done by the homeowner or professionals. This helps to ease the fears that homeowners often have wondering if their home wiring projects are going to be dangerous to them.
You dont need to have a complete knowledge of electricity to do your own wiring. The most important thing is to know the local residential electrical codes because they will be the mandatory requirements the electrical inspectors will follow. Being able to look at electrical diagrams and formulas really help in understanding how to run the circuits.
If you can look at a drawing, picture, or other illustration, you can get a good understanding how the cable is put in. There are a few types of electrical cables that are used in home construction. Non-metallic sheathed cable or more commonly called, Romex cable is often used for most home electrical wiring applications.
Romex has different types, sizes and quantity of wires per cable according to the needs of the wiring circuit. Its standard to use 12-2 and 12-3 cable for light switches and outlets. This means that the cable size is a 12-gauge thickness with either 2 or 3 wires in each cable. These types of indoor cables are used on 120-volt circuits which means only one of the wires is a hot conductor.
Certain home appliances need higher voltage and so these will have heavier or thicker wire and usually two hot conductors. These are 240-volt electrical circuits. Things like water heaters, clothes dryers, air-conditioners and heating systems will typically use 10-2 or 10-3 cable. This always depends on local electrical codes and not the National Electrical Codes or NEC.
The heavy electrical usage circuits that use a special cable are ovens and ranges. These appliances require a lot of electricity and they use special range cable which is usually two 6-gauge cables as hot wires and one 8-gauge cable as a neutral wire.
The low-voltage home wiring systems include phone wiring, security systems, and home networking systems. These are usually wired with Category 5 cable or more commonly called Cat5 cable which is an 8-wire cable made for communications systems.
Its wise to plan out circuit runs in your home using graph paper or grid paper so you can keep everything to scale. Youll need a good floor plan of your house for drawing each electrical circuit. Youll probably want to make several copies of these plans because youll have many different circuits in your home.
Once you know where you want to put the electrical circuits, you can plan for the breaker panel box needs. The new minimum size of breaker panel is a 200-amp panel with a minimum of at least 40 breaker slots. All the circuit runs begin at the breaker box with a breaker or fuse that pops into the panel box.
There will be some dedicated circuits which means only one fixture or appliance can be wired on the circuit. This is always according to the local electrical codes and regulations.
All home wiring electrical circuits will be have to be inspected at different intervals during the home construction process. The electrical inspector has to make sure all codes have been followed. This is a good thing because it helps us feel safe knowing we did the wiring correctly and were not going to catch fire in our sleep at night.

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Please feel free to cruise my web site for free info on building your own house,including electrical diagrams, electrical formulas, and codes at home wiring

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