Residential Wiring - The Right Way!
|Wiring Done Right|
Wire Routing Basics
I would highly recommend that you do not bundle electrical wires and communication / networking wires (telephone / computer networking / cablevision / satellite) together, all electrical cables can create a magnetic flux / field around current carrying wires which can cause issues. Just as transformers cause an induced current in the secondary winding, to a lesser extend regular electrical cables can have an affect on nearby tightly run cables.
Running cables before the drywall on an unfinished wall is the best but that is something that is not available when running new circuits in an existing home or rewiring an older home.
Anyone performing home wiring repairs or installations will at some point need to connect / join wires together.
Now at outlets you could use the screws on the outlet itself as a way of connecting / joining the next wire cable, however only one wire can be connected to each of the wire connection screws on an outlet, and there is only 2 brass color screws and 2 silver color screws on an outlet, if any more wires are involved you must join them all together using an insulated wire nut.
There is also on most outlets a stab in type connection on the back of the outlet itself, this type of connection is only meant for 14 gage wires and cannot be used with 12 gage wiring, where the side screws can be used with 14 or 12 gage wiring. I also would recommend to never have the outlet connections fully loaded, meaning all screws and the back stab connections being used to join wires together on an outlet, so never do that, I personally would never use the stab in connections at the back of an outlet and only use the main screw connections and use insulated wire nuts as required to join wires together.
Fishing tape can be your best friend when trying to feed wires through hard to reach wall or floor cavities.
For an old home rewire you must expect to have some repairs to walls and ceiling will have to be made after the rewire is complete, you can expect to come across almost anything in these old walls and they may be anything but completely hollow. Outside walls even though may not be perfectly insulated to today's standards could have wood boards in back of drywall which will make the job harder to feed wire cables into.
I have not much in the way of rewiring an existing home so I do not consider myself an expert on that topic. Being able to follow certain code rules may be more difficult to achieve when it is an old home being rewired as to be able to secure the wire cable within 6 inches of the electrical outlet box may mean tearing more of the wall out to achieve that.
Unfortunately I have not been able to find a good instructional video on the internet that I could show you in regards to an old home rewire.
Please refer your questions to our experts in the field that answer questions on our forums.
By: Donald Kerr
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Donald Kerr / Wiring Done Right
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