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#34385 02/10/04 08:46 PM
Joined: Dec 2001
Posts: 444
Sandro Offline OP
Let's be honest here. I am curious as to how many of us work with live power? As in making live connections, working inside panels and switchgear, removing receptacles etc. Is there a threshold? Only up to 120V? 347? higher?

#34386 02/10/04 08:55 PM
Joined: Feb 2004
Posts: 33
I work W/ live power all the time but not above 277V (like that is still safe!).ABC Always Be Careful unless it takes to long.

#34387 02/10/04 09:01 PM
Joined: Apr 2002
Posts: 7,333
Likes: 7
We work "hot" only when it is absolutely required. Lock out/tag out, test, verify, and be safe.


#34388 02/10/04 09:01 PM
Joined: Apr 2002
Posts: 914
Guilty as charged.

On residential work, I'm pretty bad about working hot. If there's a switch near by, I'll turn it off, but I'll replace that same switch while hot. I'm very carefull, rarely get shocked, and my tools don't have burn marks on them. However, while I don't require it, I do encourage my guys to turn off the juice.

#34389 02/11/04 06:19 AM
Joined: Aug 2001
Posts: 7,520
I try to switch off wherever possible, but I work live occasionally. That's on our UK supplies which are 240V to ground.

I also work live on much electronic equipment, including old tube equipment with high-voltage DC supplies, but that's a rather different story.

#34390 02/11/04 12:48 PM
Joined: Dec 2002
Posts: 308
Sometimes you have to work it hot when troubleshooting. I work hot up to 120 Volts. Anyhting hire power has turn off.
I remember reading somewhere that majority of electricians get electrocuted by 120 volts vs higher voltages.

When you turn the power off that does not mean that it is off. You have to check it twice. I got shocked last week when i took wires off of three brakers in a panel. Apparantley there is a backfeed.

I hate it when that happens.


#34391 02/11/04 12:49 PM
Joined: Dec 2002
Posts: 308
Anything higher.


#34392 02/11/04 02:48 PM
Joined: Jul 2002
Posts: 241
SJT Offline
I allways work it dead. I have the Amprobe Pasar meter. It has a great record so far in telling me what ckt. breaker operates the device
I need to kill. Cost a few bucks, but it's real good. Also, if any one is working on a computer at the time, I would ask them to log off temporarily, just in case I knock that off too.
Better to work it dead when ever possible. You only go around once.

#34393 02/11/04 06:48 PM
Joined: Jan 2004
Posts: 2
Junior Member
The standard is to work in dead circuit for safety.But sometimes we need to work on live circuit but an extra precaution must be made.If only in resedential wiring it is safe to work on circuit which is dead.But in some cases where I worked wherein power is essential and not to be interupted I become more safety minded, I see to it that I have a long sleve/cover all, safety shoes, gloves in short I isolate myself to earth by puting extra essential clothing.But I limit the voltage to 240V otherwise it is very dangerous working with higher voltage unless you are wearing proper protective devices.

#34394 02/12/04 05:45 PM
Joined: Apr 2001
Posts: 507
When necessary, yes, we do it.

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