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Electrical Wire and Cable

What is the Correct Electrical Wire Size for Your Project?

By Dave Rongey - Summary:

How to Select the Right Wire and Cable: The Key to Selecting the Right Electric Wire and Cable when adding to existing electrical circuit wiring.

Electrical Wires and Cable

Electrical Question: My basement lighting is currently all wired together to the switch by the door.

This electrical wiring question came from: Tim, a Handyman from North Aurora, Illinois.

Dave’s Reply:
Thanks for your electrical wiring question Tim.

How to Select the Right Wire and Cable

Skill Level: Beginner to Intermediate – Best installed by a Licensed Electrician.
Tools Required: Basic Electricians Pouch Hand Tools, a non-aluminum ladder and Voltage Tester.
Estimated Time: Depends on personal level experience, ability to work with tools and access to the light fixture(s).
Precaution: Identify the light circuit, turn it OFF and Tag it with a Note before working with the wiring.
Notice: Installing additional fixture wiring should be done with a permit and be inspected.

The Key to Selecting the Right Electric Wire and Cable

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2 Responses to “What is the Correct Electrical Wire Size for Your Project?”
  1. Dave Rongey says:

    The most common general purpose circuits in the home are 15 or 20 amp, for outlets and/or lighting. The two amperage ratings cannot be inter-mixed. The exact code requirements which indicate the circuits that are to be installed always start with the area and the application, then the codes are identified and applied. Several home projects are installed wrong because the codes are not understood, this is why I stress the importance of getting a permit, where in most cases your local building department will identify what codes apply and the circuits that will be required.
    Do it right the first time, you’ll sleep better at night!

  2. Ken says:

    I am remodeling my basement. I purchased a 250′ of 12/2 yellow Romex and a few 20 amp breakers to add in to my panel. My question is: can I use the 12/2 Romex to wire standard outlets and lighting the same as I would the 14/2? or can this hurt anything. Just want to be safe. Thank you, Ken