Add to GuideAsk a Question
To Top

Breaker Arced When Installing New Wire

Category Electrical
An inexperienced homeowner can experience unexpected results when trying to work on a home electrical wiring project. This is a guide about breaker arced when installing new wire.


Ask a QuestionHere are the questions asked by community members. Read on to see the answers provided by the ThriftyFun community or ask a new question.

By 0 found this helpful
August 27, 2016

A 10/3 wire from a garage subpanel connected to a 30 amp twin breaker was installed into the main panel without turning off the main power. The breaker arced made a noise, but did not rip. Was this because of the install without shutting off the power or is there something else as well? It was very scary. We shut down the project. An apprentice family member just forgot to shut off main. We are feeling distrustful now.



August 30, 20160 found this helpful
Best Answer

It sounds as if the load was connected and the breaker was turned on when installed. Installing a breaker with a live panel is not uncommon for a qualified electrician. The electrician would not have the breaker wired or turned on when installing because this could cause an arc.

Reply Was this helpful? Yes
September 3, 20160 found this helpful
Best Answer

Thanks for all the responses, turns out there is a problem with the panel box and we will be spending a large sum to replace it. Bought this house a couple of years ago, just one more thing added to a list.

Reply Was this helpful? Yes
August 29, 20160 found this helpful

Bruce is an electrician who sometimes has helpful advice on this forum. If he answers, you will have some explanation. However, in the meantime, why doesn't the apprentice give his journeyman boss a call and ask about this? Surely, if he is training as an electrician, he has access to someone who can help him explain what has happened and who will know if there is any real problem. Usually my advice on home handyman repairs is to call an electrician, but it seems you have an apprentice one on hand. Can you not let him consult with his teachers?

Reply Was this helpful? Yes

August 29, 20160 found this helpful

He stays with us when here otherwise working/learning in another city and will not be back till mid Sept .The event was scary so we said just leave - finish next month . We are just feeling unsure of this and have read that electricians sometimes do work on live panels .....and if that is the case how can this " arc " which seemed significant - be the only cause . The prewire was ok'd -inspected . It is worrisome if one doesn't know . Can the breaker have been faulty the breaker know blown or something ...can there have been a problem with the panel box ? The house is only 12yrs old all electrical has been done by pros . One would assume that all is to the most recent code .

Reply Was this helpful? Yes

Read More Answers
Related Content
In This Guide
Troubleshooting Electrical Circuit Problems
Home and Garden Repair Home ElectricalJanuary 4, 2017
electrician working on breaker box
Installing a New Circuit Breaker
An electric stove turned on.
Power Only Works When Stove is On
Circuit Breaker Box
Buying the Correct Circuit Breaker
Installing a light switch.
No Power to Circuit After Changing Switches
Halloween Ideas!
Ask a Question
Share a Post
Desktop Page | View Mobile

Disclaimer | Privacy Policy | Contact Us

© 1997-2017 by Cumuli, Inc. All Rights Reserved.

Published by .

Generated 2017/10/04 15:39:26 in 1 secs. ⛅️️ ⚡️
Loading Something Awesome!