Electrical Design of a House

Get a copy of BS7671 or what ever regulations apply to your area

To be a bit more serious:

There may be several "large appliances" such as stoves, water heaters, clothes dryers, and air conditioning. Each of these requires a dedicated circuit, with larger wire sized according the current draw. Refrigerators and clothes washers are not large loads, but each needs a dedicated circuit also.

Convenience outlets in potentially wet/moist areas such as kitchens, bathrooms, and outdoors should be protected by GFCI (ground fault circuit interrupters). These are available either at individual outlets or at the circuit breakers supplying them.

There should be two or more independent lighting circuits, so that a fault in one will allow others to remain lit. Similarly, convenience outlets, especially in the kitchen, should be distributed among several circuits, so that an excessive number of appliances are not all loaded onto one circuit.

These are just general considerations. As PWSlack has mentioned, there may be a local electrical code that governs the design. (My notes are based on the U.S. code.)

Where did PWSlack come in to this?

Tornado lost his common sense in yesterday's tornado in USA.

Yeah, they blame all that stuff on lil ole me!

By the time I got that far into my post, I just remembered BS7671. PWSlack mentions it quite frequently, and somehow his name stuck. (Sorry, Tony.) But, if PW visits this thread and mentions it, I can say I was clairvoyant!

I'd normally tell you to hire a licensed contractor, but here's some on-line help.

Just remember, electricity can kill you or your children and /or burn your new house to the ground if done improperly.

Guide to diagram-electrical-wiring for home wiring, security, and ...


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Ez DIY Electricity - DIY Electrical Wiring Projects

Consider:

*Local wiring regulations

*Clients aspirations for project

*Earthing arrangements

*Single phase / Three phase supply required? Is there a supply available at the location already or will it incur extra cost in getting one to the location.

*Regards Design, do you know the funiture layout for the rooms? will help you choosing the location of your socket points etc.

*Kitchen may have extra regulations depending on country, under counter appliances may need there own isolators above counter level.

*What type of lighting does the client want, is it just basic ceiling roses and switching. Any two-way/intermediate switching to be considered.

*All this information makes it easy for you to design the distribution system and size cables.

*What type of containment will you use, conduit etc

*Wire for firealarm? security alarm? speakers? CAT6 cable to TV points for future technolgy? Underfloor heating? thermostats?

*will you need to wire for Air Conditioning? where will the valves/pumps be located for the underfloor heating, what type of power does the system need?

*Wire for external lighting and supply for a shed/extension ( even do it may not exist at moment)

*There is alot to factor in , but a small bungalow you should not have to many issues.