Forums | Home Repair | Home Improvement | Painting | Interior Decorating | Remodeling | Landscaping


Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Electrical

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 11-15-2011, 04:26 PM   #1
Member
 
Join Date: May 2011
Posts: 495
Share |
Default

Changing a breaker. Turn main power off first?


Silly question I know, but I saw a You Tube video where they change a breaker and they did not appear to switch off any main breaker of any sort.

They just turn the breaker they are changing off, and then unscrew the wires. It seems like those two wires would surely be HOT after you pull them out of the breaker.

Am I missing something here? Or are we just assuming that one will be careful inserting the hot wires into the new breaker?

http://www.youtube.com/watch?v=MRmPymLyEMk
noone is offline   Reply With Quote
Old 11-15-2011, 04:30 PM   #2
Tileguy
 
Bud Cline's Avatar
 
Join Date: Mar 2006
Posts: 9,124
Default

Changing a breaker. Turn main power off first?


Now see, this is one of those posts that just makes me shake my head in wonderment. Why on earth would you not turn off the power when it is right there in front of you only inches from the breaker you intend to work on? Maybe I'm jumping the gun and there is a good reason for a novice to want to reach into a hot panel with a metal tool and mess around with the hot wires. If there is a justifiable reason, please let me in on it.

You Tube advice huh?
Bud Cline is offline   Reply With Quote
Old 11-15-2011, 04:33 PM   #3
Electrical Contractor
 
jbfan's Avatar
 
Join Date: Jun 2004
Location: Newnan GA
Posts: 5,476
Default

Changing a breaker. Turn main power off first?


Once the breaker has been turned off, the wires on the breaker are no longer hot.
I suggest all diy'ers turn off the main to do anything inside a panel.
__________________
Yes I am a Pirate, 200 years too late. "Jimmy Buffett"
jbfan is offline   Reply With Quote
Old 11-15-2011, 04:33 PM   #4
Member
 
Join Date: May 2011
Posts: 495
Default

Changing a breaker. Turn main power off first?


Quote:
Originally Posted by Bud Cline View Post
Now see, this is one of those posts that just makes me shake my head in wonderment. Why on earth would you not turn off the power when it is right there in front of you only inches from the breaker you intend to work on? Maybe I'm jumping the gun and there is a good reason for a novice to want to reach into a hot panel with a metal tool and mess around with the hot wires. If there is a justifiable reason, please let me in on it.

You Tube advice huh?
I watched the video twice thinking I maybe missed something.

Nope, he didn't ever turn off the main power. He just tests that the breaker was off, BEFORE he removes the wires from it. Uh, yeah, the breaker will surely be off once you switch it off. You don't need a sniffer to tell you that, you can just go try to turn a light on or something instead...

Or am I missing something here?
noone is offline   Reply With Quote
Old 11-15-2011, 04:34 PM   #5
Member
 
Join Date: May 2011
Posts: 495
Default

Changing a breaker. Turn main power off first?


Quote:
Originally Posted by jbfan View Post
Once the breaker has been turned off, the wires on the breaker are no longer hot.
I suggest all diy'ers turn off the main to do anything inside a panel.
Ok, then I am missing something here. How does turning the breaker off kill the power on the wires running into it?
noone is offline   Reply With Quote
Old 11-15-2011, 04:35 PM   #6
Military Mom of 4
 
Snav's Avatar
 
Join Date: Aug 2009
Location: Arkansas
Posts: 974
Default

Changing a breaker. Turn main power off first?


So: trust a faulty breaker that I'm having to remove to actually cut off the power just because I tell it to?

No - If I'm changing it it's usually because it's not working right.
__________________
At this present moment in time I am making cabinets for the kitchen - just in case you wanted to know what I'm doing when I'm not around.
Snav is offline   Reply With Quote
Old 11-15-2011, 04:38 PM   #7
Tileguy
 
Bud Cline's Avatar
 
Join Date: Mar 2006
Posts: 9,124
Default

Changing a breaker. Turn main power off first?


Quote:
Ok, then I am missing something here. How does turning the breaker off kill the power on the wires running into it?
The source of the power comes from a bar in the panel behind the breaker. The wire is the outbound side of the breaker.

You know? On second thought maybe YOU shouldn't be anywhere near an electric panel for any reason.
Bud Cline is offline   Reply With Quote
The Following User Says Thank You to Bud Cline For This Useful Post:
gregzoll (11-15-2011)
Old 11-15-2011, 04:40 PM   #8
Member
 
Join Date: May 2011
Posts: 495
Default

Changing a breaker. Turn main power off first?


Quote:
Originally Posted by Bud Cline View Post
The source of the power comes from a bar in the panel behind the breaker. The wire is the outbound side of the breaker.

You know? On second thought maybe YOU shouldn't be anywhere near an electric panel for any reason.
For some reason I deducted that a breaker worked like a switch.



Silly me.


Still, seems like if you hit that bar with a screw driver you could fry yourself with the main power on, right?
noone is offline   Reply With Quote
Old 11-15-2011, 04:43 PM   #9
Electrical Contractor
 
jbfan's Avatar
 
Join Date: Jun 2004
Location: Newnan GA
Posts: 5,476
Default

Changing a breaker. Turn main power off first?


Quote:
Originally Posted by noone View Post
For some reason I deducted that a breaker worked like a switch.



Silly me.


Still, seems like if you hit that bar with a screw driver you could fry yourself with the main power on, right?
Yep!
__________________
Yes I am a Pirate, 200 years too late. "Jimmy Buffett"
jbfan is offline   Reply With Quote
Old 11-15-2011, 04:44 PM   #10
Licensed electrician
 
Join Date: Sep 2007
Location: Maryland
Posts: 7,068
Default

Changing a breaker. Turn main power off first?


Yes it would be possible to receive a shock while working in a panel, even with the main breaker off.
__________________
Answers based on the National Electrical Code. Local amendments may apply. Check with your local building officials.
Jim Port is offline   Reply With Quote
Old 11-15-2011, 04:47 PM   #11
Tileguy
 
Bud Cline's Avatar
 
Join Date: Mar 2006
Posts: 9,124
Default

Changing a breaker. Turn main power off first?


Quote:
Still, seems like if you hit that bar with a screw driver you could fry yourself with the main power on, right?
Think: "Crispy Critter".
Bud Cline is offline   Reply With Quote
Old 11-15-2011, 04:49 PM   #12
Tileguy
 
Bud Cline's Avatar
 
Join Date: Mar 2006
Posts: 9,124
Default

Changing a breaker. Turn main power off first?


Quote:
For some reason I deducted that a breaker worked like a switch.
Actually it does.
Bud Cline is offline   Reply With Quote
Old 11-15-2011, 04:52 PM   #13
Member
 
Join Date: May 2011
Posts: 495
Default

Changing a breaker. Turn main power off first?


Quote:
Originally Posted by Bud Cline View Post
Actually it does.
I just didn't realize it was the bar behind it powering it. I thought stupidly that one wire was input, the other was output....... over complicating things.
noone is offline   Reply With Quote
Old 11-15-2011, 04:55 PM   #14
Tileguy
 
Bud Cline's Avatar
 
Join Date: Mar 2006
Posts: 9,124
Default

Changing a breaker. Turn main power off first?


Whatever you do...
Don't try to lick that bar with your tongue.
Bud Cline is offline   Reply With Quote
The Following User Says Thank You to Bud Cline For This Useful Post:
gregzoll (11-15-2011)
Old 11-15-2011, 05:03 PM   #15
Member
 
Join Date: May 2011
Posts: 495
Default

Changing a breaker. Turn main power off first?


Quote:
Originally Posted by Bud Cline View Post
Whatever you do...
Don't try to lick that bar with your tongue.

I thought you had to lick the bar right before you insert the new breaker??
noone is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Main Breaker Melting rubberhead Off Topic 8 03-16-2011 07:50 PM
Emergency power backup via power inverter upabove Electrical 14 06-08-2010 11:18 PM
Breaker tripped after power outage. What's up? Leah Frances Electrical 14 02-12-2009 06:56 PM
Main Breaker is tripping rdmccaw Electrical 18 02-05-2009 10:27 PM
Main Breaker won't stay on Please Help mikpowl Electrical 8 01-10-2008 09:22 AM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.