CLICK HERE AND JOIN OUR COMMUNITY TODAY, IT'S FREE!
Go Back   Electrician Talk - Professional Electrical Contractors Forum > Tools, Equipment & Safety > Workplace Safety

Reply
 
Thread Tools Search this Thread Display Modes
Old 01-02-2012, 11:25 AM   #21
Premium Member
 
dronai's Avatar
 
Join Date: Apr 2011
Location: California
Posts: 5,173
Default

Quote:
Originally Posted by varmit View Post
The thing to keep in mind, is that past a certain level of flash energy, even the proper PPE may protect you from burns, but will NOT LEESEN THE CONCUSSION INJURIES FROM THE EXPLOSIVE FORCE AND/ OR SHRAPNEL.

However, you DO want to were the PPE to protect you, as best it can, if you must work hot. It is almost always a better plan to turn off high arc flash potential equipment before working on or in it.

What if it's a 24/7 operation, with too much in the MCC to shut it all down ?

Can the explosion blow open the steel in a closed cabinet ? as in shrap metal, with 480V ?

dronai is online now   Reply With Quote
Join Contractor Talk

Join the #1 Electrician Forum Today - It's Totally Free!

ElectricianTalk.com - Are you a Professional Electrical Contractor? If so we invite you to join our community and see what it has to offer. Our site is specifically designed for you and it's the leading place for electricians to meet online. No homeowners asking DIY questions. Just fellow tradesmen who enjoy talking about their business, their trade, and anything else that comes up. No matter what your specialty is you'll find that ElectricianTalk.com is a great community to join. Best of all it's totally free!

Join ElectricianTalk.com - Click Here JOIN FOR FREE


Warning: The topics covered on this site include activities in which there exists the potential for serious injury or death. ElectricianTalk.com DOES NOT guarantee the accuracy or completeness of any information contained on this site. Always use proper safety precaution and reference reliable outside sources before attempting any construction or remodeling task!

Old 01-02-2012, 01:11 PM   #22
animal lover /rat bastard
 
wildleg's Avatar
 
Join Date: Apr 2009
Location: central east coast us
Posts: 9,144
Send a message via ICQ to wildleg
Default

Quote:
Originally Posted by drsparky View Post
I hate that overused "Safety is No Accident" slogan, should have been retired years ago. It give me the feeling that the safety folks are mindless droids.
awww, man, I love that slogan.
__________________
As President Roosevelt said: "We have nothing to fear but fear itself. And Chuck Norris. And 滿口胡言. And Grabthar's hammer. And Gort. and 江南 Style. and rotting in the street and Zombies . . . and Wayne Griffen "
wildleg is online now   Reply With Quote
Old 01-02-2012, 04:18 PM   #23
Donuts > Fried Eggs
 
Big John's Avatar
 
Join Date: May 2010
Location: Portland
Posts: 14,493
Default

Quote:
Originally Posted by dronai View Post
...Can the explosion blow open the steel in a closed cabinet ? as in shrap metal, with 480V ?
It can definitely blow open doors and shear off 3/8" bolts to blow panels off. Never seen it actually shred steel, but I still wouldn't want to depend solely on the enclosure to protect me (unless designed for it).

And be careful thinking of arc flash in terms of volts. Some of the most dangerous stuff we have is 480 volts because there's a very long clearing time for the protection, meaning that the victim will be exposed to a lot of energy. A lot of the 13,800 volt stuff actually clears faster meaning it has a lower incident energy.
Quote:
Originally Posted by drsparky View Post
...It gives me the feeling that the safety folks are mindless droids.
I get that feeling, too, but I think it comes from too much time working with them....

-John

Last edited by Big John; 01-02-2012 at 04:23 PM.
Big John is online now   Reply With Quote
The Following User Says Thank You to Big John For This Useful Post:
dronai (01-03-2012)
Old 01-02-2012, 06:37 PM   #24
Senior Member
 
Join Date: Apr 2009
Location: Northern Kentucky
Posts: 789
Default

Quote:
Originally Posted by dronai View Post
What if it's a 24/7 operation, with too much in the MCC to shut it all down ?

Can the explosion blow open the steel in a closed cabinet ? as in shrap metal, with 480V ?
YES IT CAN, if the fault current is high enough! I have seen it happen before.
varmit is offline   Reply With Quote
Old 01-02-2012, 06:43 PM   #25
Senior Member
 
Join Date: Apr 2009
Location: Northern Kentucky
Posts: 789
Default

Quote:
Originally Posted by dronai View Post
What if it's a 24/7 operation, with too much in the MCC to shut it all down ?

Can the explosion blow open the steel in a closed cabinet ? as in shrap metal, with 480V ?
As for the "24/7 operation", does you mean that you think that the plant's widget production is more important than your life? What about all of the possible collateral damage to equipment that could have production down for weeks. Would not a short term PLANNED shutdown be better than weeks of unplanned downtime?
varmit is offline   Reply With Quote
Old 01-02-2012, 07:06 PM   #26
toothless peckerhead
 
chicken steve's Avatar
 
Join Date: Mar 2011
Location: cooped up
Posts: 21,265
Default

Quote:
Originally Posted by drsparky View Post
I hate that overused "Safety is No Accident" slogan, should have been retired years ago. It give me the feeling that the safety folks are mindless droids.
the aultruism of safety was thrown to the dogs when it became big biz with legislated teeth

the more i learn about safety, the more i'm convined we're on our own, or at best looking out for each other

~CS~
chicken steve is online now   Reply With Quote
Old 01-02-2012, 10:47 PM   #27
Member
 
Join Date: Aug 2011
Location: KY
Posts: 59
Default

Quote:
Originally Posted by Joe Tedesco View Post
YouTube Video
ERROR: If you can see this, then YouTube is down or you don't have Flash installed.
Good video Joe, looks as though the guy is using a multi-function tester. The procedure we use is a single-function (voltage) tester to prevent the mistake of an incorrect setting. Just wanted to know if the standards are the same in other industries ?
T Healy is offline   Reply With Quote
Old 03-19-2012, 08:02 AM   #28
Junior Member
 
Join Date: Feb 2012
Location: Australia
Posts: 7
Default

Electrical safety is most important. Thanks for sharing this.
AlbertSmith is offline   Reply With Quote
Old 03-28-2012, 09:19 PM   #29
Senior Member
 
Going_Commando's Avatar
 
Join Date: Oct 2011
Location: New Hampshah
Posts: 3,820
Default

Quote:
Originally Posted by drsparky View Post
I hate that overused "Safety is No Accident" slogan, should have been retired years ago. It give me the feeling that the safety folks are mindless droids.
That's cuz most of them are

Going_Commando 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
Boston Electrical Accident Joe Tedesco Linework 7 07-21-2012 12:19 PM
Electrical Safety Joe Tedesco Workplace Safety 43 05-07-2011 03:19 PM
electrical safety z07jcb General Electrical Discussion 5 11-24-2010 05:12 PM
Ladder Safety is NO Accident!!! Kletis Workplace Safety 13 09-24-2008 11:44 AM
Jan 30, 2007 Electrical Accident MDShunk Workplace Safety 0 01-31-2007 06:02 PM


All times are GMT -4. The time now is 08:33 PM.


Copyright 2006-2014 Escalate Media LP. All Rights Reserved
Our Pro Sites Network
ContractorTalk.com | DrywallTalk.com | HVACSite.com | PaintTalk.com | PlumbingZone.com | RoofingTalk.com