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10-08-2009, 07:22 AM
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#41
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Senior Member
Join Date: Nov 2008
Location: Presque Isle, Maine
Posts: 1,581
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Quote:
Originally Posted by randas
You silly kids and your 480. Come up north and play with some 600  |
I thought you hosers used 575. 
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"Pay attention son, this is for your own good." - Foghorn Leghorn
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10-08-2009, 11:32 PM
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#42
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Senior Member
Join Date: Sep 2009
Location: kentucky
Posts: 671
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What voltage kills most
Sometimes by the time I get my thoughts into writing it looks different than what I thought. If you were wondering if more people are killed by lower voltages than higher, I would say YES. It is the lower voltages that we are most involved with. However, more attention has to be paid to the neutrals. Though they are at GROUND potential,they are deadly. In a properly grounded electrical system there is no potential from the neutral to ground but if you become in series with the neutral by BREAKING a joint, you are the load and therefore the DIFFERENCE OF POTENTIAL.
QUOTE; Electricity is absolutely useless without a difference of potential.
RIVETER
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10-08-2009, 11:36 PM
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#43
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Senior Member
Join Date: Mar 2009
Location: Lake Ridge, Virginia
Posts: 2,138
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Do you rivet a lot of things, hence the name?
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10-09-2009, 12:38 AM
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#44
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Rat in a Dress
Join Date: Aug 2009
Location: Port Coquitlam, British Columbia
Posts: 566
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I found his post to be riveting!
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I can drink you pretty.......
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10-09-2009, 12:45 AM
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#45
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Rat Extraordinaire
Join Date: Sep 2007
Location: Iowa
Posts: 6,792
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Quote:
Originally Posted by BCSparkyGirl
I found his post to be riveting!
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All responses based on the 2008 National Rat Code.
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10-09-2009, 01:08 AM
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#46
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Senior Member
Join Date: Mar 2009
Location: Ottawa
Posts: 168
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Quote:
Originally Posted by drsparky
I thought you hosers used 575. |
347/600 and the odd place might have 277/480.
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10-09-2009, 09:57 PM
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#47
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Rat in a Dress
Join Date: Aug 2009
Location: Port Coquitlam, British Columbia
Posts: 566
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Quote:
Originally Posted by 480sparky
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thats neat, where didja dig that up from?
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I can drink you pretty.......
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10-10-2009, 01:12 PM
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#48
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Senior Member
Join Date: Apr 2009
Location: Canada
Posts: 633
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13.8 KV will take you out cleanly.
I'm told that the 600 vdc that we use for the subway here really bites hard too.
I've got 575 vac many times over the years.. Just messed up my heart for a bit..
__________________
 Don't fight .. Play nice! 
Last edited by Toronto Sparky; 10-10-2009 at 01:15 PM.
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10-10-2009, 02:59 PM
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#49
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Junior Member
Join Date: Jul 2007
Posts: 16
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Quote:
Originally Posted by BCSparkyGirl
thats neat, where didja dig that up from?
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Do a google search for Rosie the Riveter.
Roger
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10-10-2009, 03:41 PM
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#50
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Rat Extraordinaire
Join Date: Sep 2007
Location: Iowa
Posts: 6,792
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Quote:
Originally Posted by Roger
Do a google search for Rosie the Riveter.
Roger
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Here, let me Google that for you.
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All responses based on the 2008 National Rat Code.
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10-10-2009, 08:29 PM
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#51
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Senior Member
Join Date: Mar 2008
Location: Toronto, Canada
Posts: 442
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A welder at work got hospitalized after he got between the ground electrode and the work he was welding. 50 volts at 200 amps. He is lucky to be alive i'm told.
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10-10-2009, 08:42 PM
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#52
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Member
Join Date: Sep 2009
Location: ontario Canada
Posts: 57
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347 is like being hit in the head with a 2 x 4 it will take a few of your brain cells.
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10-10-2009, 09:03 PM
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#53
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Senior Member
Join Date: Mar 2008
Location: Toronto, Canada
Posts: 442
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Yea, 347 hurts like hell.
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10-10-2009, 09:15 PM
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#54
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Member
Join Date: Sep 2009
Location: ontario Canada
Posts: 57
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Here is a lesson for the young and dumb
When entering a ceiling always go up the ladder looking up and have a good light and hard hat
I stepped into a ceiling with a ball cap on and there was an old 347 volt light feed bx hang down. took both wires off the top of my nut and broke the last step on the ladder (the voltage over stimulates muscle movement That's what holds you or throws you) That was 20 years ago and I still have a feeling of falling when i close my eyes some nights
I woke up on the floor with a throbbing head and a sore ass. It could have been way worse if I had grabbed the t bar and it was grounded anywhere I hate to think about that senerio 
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10-11-2009, 12:42 AM
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#55
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Hack and Rat all in one
Join Date: Jan 2009
Location: Stars and Stripes
Posts: 3,276
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Quote:
Originally Posted by Toronto Sparky
I've got 575 vac many times over the years.. Just messed up my heart for a bit..
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Quote:
Originally Posted by sparky105
347 is like being hit in the head with a 2 x 4 it will take a few of your brain cells. |
Quote:
Originally Posted by cdnelectrician
Yea, 347 hurts like hell.
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Quote:
Originally Posted by sparky105
Here is a lesson for the young and dumb
When entering a ceiling always go up the ladder looking up and have a good light and hard hat
I stepped into a ceiling with a ball cap on and there was an old 347 volt light feed bx hang down. took both wires off the top of my nut and broke the last step on the ladder (the voltage over stimulates muscle movement That's what holds you or throws you) That was 20 years ago and I still have a feeling of falling when i close my eyes some nights
I woke up on the floor with a throbbing head and a sore ass. It could have been way worse if I had grabbed the t bar and it was grounded anywhere I hate to think about that senerio |
Have any of you guys ever seen or know someone who has experienced an arc flash incident on a 600 volt system?
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10-11-2009, 03:00 AM
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#56
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Rat in a Dress
Join Date: Aug 2009
Location: Port Coquitlam, British Columbia
Posts: 566
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Quote:
Originally Posted by Peter D
Have any of you guys ever seen or know someone who has experienced an arc flash incident on a 600 volt system?
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we just had a kid hurt bad up here....12k went phase to phase, or something like that, Im hearing second hand....not on my site, but up with our hydro crew. My dad says he had 3rd degree burns to the top 20% of his body....poor guy, in a med induced coma........he waswearing a fire suit, probably the only reason he wasn't killed. But he's in for a rough recovery.
Be careful out there boys!
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I can drink you pretty.......
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10-11-2009, 05:02 AM
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#57
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Senior Member
Join Date: Apr 2009
Location: Canada
Posts: 633
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Vaporized a couple of screw drivers on 600v 400a splitters. And blew up a watt/hr meter once (not my fault)
It was prewired and someone wired the pot. transformer backwards.
Wiring a 600-120v tranny backwards tends to make stuff go poof.
Never really had a bad flash. Seen the aftermath a few times.
Worst was a flopping about #12 ground wire in a 600v 2000a switchgear, they had to replace the whole switch gear. And the guy spent months recovering..
__________________
Don't fight .. Play nice!
Last edited by Toronto Sparky; 10-11-2009 at 05:09 AM.
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10-11-2009, 10:26 AM
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#58
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Member
Join Date: Sep 2009
Location: ontario Canada
Posts: 57
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got a service call on a 200 amp buss plug for a chiller
the hacks at the plant found a blown fuse so they replaced it with out testing
hit it again and blew the buss plug door off the rack
the a and b phases fused together in the buss system and it was a 2 day rebuild verticle buss from floor to floor hot moulting steel and copper ran down 6 or so feet glad i wasn't on that switch handle that clown will still be deaf I think 
and the feeder cable needed to be redone because it was pulled tight to the connections and burnt to a crisp
THe fuces went off we think becuase they were having problems with the o.l.'s and by passed them to keep production up but by the time we left it was a new intall thank you hacks 16 hrs straight and 15 hrs dbl time 
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10-14-2009, 02:29 AM
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#59
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semi-electrician
Join Date: Dec 2007
Location: New Jersey, out in the woods
Posts: 815
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We should do a test on the most lethal voltage, wonder if we could get the two Aussies to volunteer for the test?
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10-14-2009, 03:05 AM
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#60
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Rat in a Dress
Join Date: Aug 2009
Location: Port Coquitlam, British Columbia
Posts: 566
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stick one wire up their nose, and the other up their ass?
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I can drink you pretty.......
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