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Electrical Wire and Cable


Testing An Electrical Circuit For A Ground

Should I make sure my Circuits are Properly Grounded? How to Determine if a Circuit is Actually Grounded and how to proceed to bond your system for equipment protection

Earth Ground Electric Circuit
Electrical Question: Should I make sure my circuits are properly grounded?

Background: Joe, a Homeowner from Chicago, Illinois

Dave’s Reply:
Thanks for your electrical question Joe.

Electrical Circuit and the Earth Ground

NOTE: Where you proceed with a situation like this depends if there is a ground already present with the incoming circuit that you could bond to or not. This may depend on the age of the home, or looking to see if existing outlets are grounded or not, and I mean truly grounded.

Checking an Electrical Circuit for a Earth Ground

More about Home Electrical Wiring

Receptacle Tester and Circuit Analyzer

Electrical Grounding
Electrical Grounding Methods and Requirements

Electrical Grounding Methods and Requirements

Listing of electrical codes for grounding with examples of electrical grounding codes for home electrical wiring.

For Best Results Consult a Licensed Electrical Contractor.
Locate An Electrical Contractor in Your Area


» You Can Avoid Costly Mistakes! «

Here's How to Do It:
Wire It Right with the help of my Illustrated Wiring Book

Great for any Home Wiring Project.


  electrical wiring  

Complete Guide to Home Electrical Wiring

Perfect for Homeowners, Students,
Handyman, Handywomen, and Electricians
Includes:
Wiring GFCI Outlets
Wiring Home Electric Circuits
120 Volt and 240 Volt Outlet Circuits
Wiring Light Switches
Wiring 3-Wire and 4-Wire Electric Range
Wiring 3-Wire and 4-Wire Dryer Cord and Dryer Outlet
How to Troubleshoot and Repair Electrical Wiring
Wiring Methods for Upgrading Electrical Wiring
NEC Codes for Home Electrical Wiring
....and much more.




Be Careful and Be Safe - Never Work on Energized Circuits!
Consult your Local Building Department about Permits and Inspections for all Electric Wiring Projects.

Question of the Day

Wiring a Switch for an Air Compressor

Wayne asks:
I am wiring my 240volt air compressor using 10/3 to a lighted 30 amp switch to place by exit door to turn off when im away.
My question is: when I wire the switch I will have essentially two hots, do I place both the black and red on one screw and the black and red on the other?
Also its the lighted Leviton 3032-plr, a lot of the comments say I need to use the neutral to operate the light.
I dont know what to do with that.
Thanks for your help.

Dave's Reply:


Wayne, The Leviton 3032-plr switch that you have described is for 120volt applications and will not work on a 240volt circuit.
A typical 240 volt air compressor requires two hots and a ground wire.
A neutral wire is not required.
A 120volt lighted control switch could be wired as an add on control circuit, however this would require a separate 120volt control circuit, a 120volt lighted switch, and a 120volt control relay with 240volt contacts rated for 30amps.


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