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Electrical Wire and Cable

How to Locate a Voltage Problem

By Dave Rongey - Summary:

Why is the electrical circuit voltage not reading normal with a voltage tester? How to Locate a Voltage Problem, Electrical Tests for Locating the Cause of Incorrect Voltage.

Guide to Locating a Voltage or Power Problem

Electrical Question: Why is the electrical circuit voltage not reading normal with a voltage tester?

Thanks in advance for any advice or guidance, and please ask if you need more info.
This electrical wiring question came from Dan, in Canada, Canada.

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

How to Check for the Cause of Incorrect Voltage

Application: Evaluating Incorrect Voltage of a Home Electric Circuit.
Skill Level: Advanced – Not Recommended for Homeowners or DIY’ers – Best performed by an Experienced Licensed Electrician.
Tools Required: Basic Electricians Pouch Hand Tools and Voltage Tester and amp meter or load recorder.
Estimated Time: Depends on the type and age of the electric service panel and the access to the circuits to be evaluated.
Caution: Working in an electric panel is dangerous due to arc flash hazards and the possibility of electric shock.
Notice: Making changes to the Home Electrical Service Panel should be done according to local and national electrical codes with a permit and be inspected.

Testing Procedure to Locate a Voltage Problem

IMPORTANT: Voltage Testing inside an electrical panel is not recommended for anyone who is not an experienced electrician. The following is an example of the various testing procedure a qualified electrician may use to help locate a problem with incorrect electric circuit voltage.

Working With the Problem Electrical Circuit

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MORE ABOUT THIS TOPIC: Electrical, Power Quality, Testers and Meters, Using Electrical Testers and Meters, Volt Readings

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