Electrical Circuits for Garage Remodel Wiring
Warning About Splicing Electrical Cables and Circuit Sizes: I am working on a re-model project in my garage where I will enclose and insulate a room from the rest of the garage.
Warning About Splicing Electrical Cables and Circuit Sizes
How is a remodel project in a garage wired where a separate room will be added?
Paul, a Homeowner in Arizona asks:
- I am working on a remodel project in my garage where I will enclose and insulate a room from the rest of the garage.
- I have a question about codes for splicing cables. Is this a really bad idea? I’m thinking of running a 10/2 NM cable to an electrical box, and then splicing 3, 20amp (12/2) cables from it for the little room which will pull some big electricity (music equipment).
- I think I know the answer: it would potentially pull 60amps through a 30amp cable.
- If so, does this mean if I want 20amp receptacles, I must use separate #12 cables?
I hope this question makes sense, and I really appreciate your time. Thanks a bunch!
Michael in South Carolina asks:
- My garage has three switches to turn on several lights simultaneously. I just recently made a room in part of the garage and want to use one of the existing lights that is in the new room, but have it isolated on its own switch. there will also be a ceiling fan in there as well.
- I tried running new wire from a new switch to the light but it all the lights still come on and trips the breaker when the new switch is turned off.
- There are two pairs of what looks like 14-2 at the existing light fixture. I gave 12-3 running from the new switch to the light. Thank you for your help.
Thanks for your electrical questions.
Application: Install New Electrical Wiring in a Garage.
Skill Level: Intermediate to Advanced – Best performed by a Licensed Electrical Contractor, or Certified Electrician.
Electrical Tools Required: Basic Electricians Pouch Hand Tools, Voltage Tester, and appropriate Safety Gear.
Estimated Time: Depends on the personal level experience, ability to work with tools, install electrical circuit wiring, and the available access to the project area.
Electrical Safety: Identify the electrical power source to the Switch, turn it OFF and Tag with a Note before working with the electrical wiring.
Electrical Wiring Parts and Materials: Electrical parts and materials for the Switch should be approved for the specific project and compliant with local and national electrical codes.
Electrical Codes and Inspections: Installing or changing home electrical wiring should be done according to local and national electrical codes as adopted in your location. A permit and inspections may also be required.
Adding a Room to a Garage
- Please Note: If a room is added that will be occupied, and the area serves as a bedroom, then additional electrical codes will apply, such as adding a smoke detector, AFCI protected outlets, lighting, etc..
Paul’s Garage Wiring Project:
Splicing Electrical Cables for a Garage Wiring Project
- There is nothing wrong with splicing wires as long as the junction box is accessible and you are not mixing wire sizes.
- You may not splice a #10 wire with a #12. The circuit size must be determined up front, and for your garage outlets you may want a 20 amp circuit which a 12/2 NM Romex could be installed.
- I can tell by your questions that you really don’t understand electrical circuit design, and I’m suspecting that your project is being done without a permit.
- Both of these deficiencies spell trouble so I would advise you to slow down and make sure the remodel project is done correctly and according to code, otherwise your creating a fire hazard and we sure don’t want that.
Michael’s Basement Wiring Project:
- Consider installing a separate power source to the room in the garage that will be used for the lights and outlets.
Check out this information about Electrical Project Guidelines
More about Garage Electrical Wiring
Electrical Junction Boxes for Home Wiring
Understanding electrical junction boxes and what they are used for. Home electrical wiring is the process of installing electrical wire to a location that will serve electrical devices or an appliance. One very important component is the box where the wire will be installed. The type and size of the home wiring electrical boxes will depend upon the circuit size, application and its location.
DIY Electrical Project
Garage Electrical Wiring
Garage electrical wiring diagram and considerations for wiring garage circuits, complete with pictures. Careful planning for your garage with immediate and future equipment considerations will help you understand how to size your electrical circuit requirements. This information will help as an garage electrical wiring guide.
Electrical Code Articles
Electrical Code Directory covering afci-circuit, electrical-boxes, electrical-circuit, electrical-code-outlets, electrical-gfci, electrical-grounding, electrical-project, electrical-services, electrical-underground, electrical-wiring, electrical-wiring-code, lighting-code, smoke-detector,
This link is helpful as a Homeowner
The following may also be helpful for you:
Be Careful and Be Safe - Never Work on Energized Circuits!
Consult your Local Building Department about Permits and Inspections for all Electric Wiring Projects.
The Safest Way to Test Electrical Devices and Identify Electric Wires!The Non-Contact Electrical Tester
This is a testing tool that I have had in my personal electrical tool pouch for years, and is the first test tool I grab to help identify electrical wiring. It is a Non-contact tester that I use to easily Detect Voltage in Cables, Cords, Circuit Breakers, Lighting Fixtures, Switches, Outlets and Wires. Simply insert the end of the tester into an outlet, lamp socket, or hold the end of the tester against the wire you wish to test. Very handy and easy to use.
The Quickest Way to Check for Faulty Electrical Wiring!The Plug-In Outlet Tester
This is the first tool I grab to troubleshoot a problem with outlet circuit wiring. This popular tester is also used by most inspectors to test for power and check the polarity of circuit wiring.
It detects probable improper wiring conditions in standard 110-125 VAC outlets Provides 6 probable wiring conditions that are quick and easy to read for ultimate efficiency Lights indicate if wiring is correct and indicator light chart is included Tests standard 3-wire outlets UL Listed Light indicates if wiring is incorrect Very handy and easy to use.
Strip Off Wire Insulation without Nicking and Damaging the Electric Wire!The Wire Stripper and Wire Cutter
My absolute favorite wire stripping tool that I have had in my personal electrical tool pouch for years, and this is the tool I use to safely strip electrical wires.
This handy tool has multiple uses:
The wire gauges are shown on the side of the tool so you know which slot to use for stripping insulation.
The end of the tool can be used to grip and bend wire which is handy for attaching wire onto the screw terminals of switches and outlets..
The wire stripper will work on both solid and stranded wire. This tool is Very Handy and Easy to Use.
|More articles about Garage, Wiring Diagrams and Home Electrical Wiring:|
|« Previous||Next »|
|Installing Kitchen Outlet Wiring||Ceiling Fan Time Limits of Operation|