Why Is My Voltage Not Right After My Circuit Breaker Tripped Off?
How to Restore an Electric Circuit: Check the voltage of both legs of power to ground, or test receptacle outlets and devices in the home. If it is found that the voltage is still not correct you may need to call a qualified electrical contractor to make a few tests to identify the problem and make the necessary repairs.
Understanding Circuit Breakers and Home Electrical Circuits
Electrical Question: I have a pole building that draws power from my home.
- My electrical question is:
- I tripped a circuit breaker this morning and now any circuit I turn on drops power to around 70 to 40 volts and the opposite lug jumps to 180 volts to 200 volts.
- Could it be a bad main or the service lines from the house to the shed?
- I have checked all outlets and lights and nothing is burnt or wired wrong that I can tell.
- Every thing in the pole barn is in conduit and all was working just fine before the outside outlet shorted.
- The electrical is only 5 years old and I have a square D box in both the house and pole barn.
Additional Comments: Great information! I have wired several homes and out buildings over the years with no problems, but can still learn from this website!
Background: John, a Handyman from Colfax, Wisconsin.
Thanks for your electrical wiring question John.
How to Restore an Electric Circuit
Testing Electrical Wiring
Skill Level: Intermediate to Advanced
Tools Required: Basic Electricians Pouch Hand Tools and Voltage Tester or Continuity Tester
Estimated Time: Depends on experience and level of problem solving skills.
Precaution: Testing live wires is dangerous and should be done by an experienced individual only. Testing using a continuity tester should only be made after the circuit has been identified and turned OFF and Tagged.
Take these steps to help identify circuit problems and restore electrical power to the home
- First you need to find out why the circuit breaker tripped off and either remove or repair the fault.
- Is there damage to the electrical panel or buss?
- If no damage has been found then reset the circuit breaker
- Turn the circuit breaker all the way into the OFF position, and then turn it back ON.
- Check the voltage of both legs of power to ground, or test receptacle outlets and devices in the home.
- If it is found that the voltage is still not correct you may need to call a qualified electrical contractor to make a few tests to identify the problem and make the necessary repairs.
Troubleshooting and Repairing Electrical Wiring
Licensed Electrician Reveals the Secrets of Successful Electrical Troubleshooting Methods used to solve the majority of the home electrical problems and wiring failures encountered.
More about Home Electrical Circuits
Electric Circuit Listing
The size of the home electrical service panel is designed by calculating the square footage of the home and factoring in the code requirements for the electrical circuits that are required.
Home Electrical Circuit Breakers
A guide to home electrical circuit breakers and how they work to protect your electrical wiring. When properly installed, your home electrical wiring is protected by a circuit protection device.
For Best Results Consult a Licensed Electrical Contractor.
Locate An Electrical Contractor in Your Area
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.
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