Testing An Electrical Circuit For A Ground
By Dave Rongey - Summary:|
How to Determine if a Circuit is Actually Grounded and how to proceed to bond your system for equipment protection
How to Determine if a Circuit is Actually Grounded
- I connected the white with white and black with black but when I grounded the green wire to the dishwasher I noticed that the previous owner tied one end of green wire to the appliance and just stuck a loose end up the pipe.
- Does this mean that I need an electrician to run a green wire from the breaker panel to the appliance to get it properly grounded?
Background: Joe, a Homeowner from Chicago, Illinois
Thanks for your electrical question Joe.
Checking for a Ground of an Electrical Circuit
- 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.
- Many times grounded outlets are installed in older homes even though a ground wire was not attached to the outlet or a ground wire was not bonded to the outlet box, and this is not a recommend practice.
- The presence of a ground is best identified by using a receptacle tester and circuit analyzer that has three lights on it that indicate if the wiring of the outlet is correct or not.
- If it is discovered that the circuit is not grounded then an approved connection to a metal cold water pipe would work in a situation such as this.
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.
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