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Old 01-21-2009, 01:32 PM   #16
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So this happens when you open the door on an electrical panel? The link is not clear...

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Old 01-21-2009, 04:36 PM   #17
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From the link, 8 cal/cm² is level 2 arc-flash protection. If the arc lasts 6 cycles at 60Hz before the breaker clears then your protective gear was absorbing 3 W/cm².
Sunlight puts out 140 mW/cm², so a level 2 flash can be 20x stronger than normal sunlight for 1/10th second.
http://images.google.com/imgres?imgu...%3Den%26sa%3DG

This intensity can't be good for the eyes but you can't work with welder's goggles on, either.

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Old 01-21-2009, 05:45 PM   #18
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Ayuh,... That'll Kill the Hidden Agenda...
Very true.
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Old 01-21-2009, 05:49 PM   #19
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Originally Posted by harleysilo View Post
So this happens when you open the door on an electrical panel? The link is not clear...
When the panel cover is on it is shielding you from danger, if it is off the flash is no longer contained. It is only a potential problem and very seldom happens. Its just good to know the risks involved.
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Old 01-21-2009, 07:46 PM   #20
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This intensity can't be good for the eyes but you can't work with welder's goggles on, either.
Yeah but you don't need infrared or ultraviolet to see. You can wear goggles that block all but the visible spectrum and are still nearly transparent. It's not the light you see as much as the light you can't see that'll get you.
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Old 01-21-2009, 07:52 PM   #21
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Yeah but you don't need infrared or ultraviolet to see. You can wear goggles that block all but the visible spectrum and are still nearly transparent. It's not the light you see as much as the light you can't see that'll get you.
Best bet is one of these http://www.70estore.com/product/Anti...eshield_70_VLT
Rated for level 2 arc flash not too expensive either
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Old 01-22-2009, 11:49 AM   #22
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Now I get it.
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Old 01-22-2009, 12:57 PM   #23
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Well I don't take off the panel cover, i do my work up to that point and have the old electrician come by to stick the wires in that mysterious box....LOL.....i should be safe.
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Old 01-22-2009, 09:49 PM   #24
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Well I don't take off the panel cover, i do my work up to that point and have the old electrician come by to stick the wires in that mysterious box....LOL.....i should be safe.
Thats Ok too.
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Old 01-23-2009, 01:22 PM   #25
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If there is enough money someone will do it. If it will mean someone can have control or power over people etc then that will effect how it happens and when. greed and power everywere<G>. plenty of info on internet to learn anything for diy.

politics = who is the best actor
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Old 01-23-2009, 01:33 PM   #26
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If there is enough money someone will do it. If it will mean someone can have control or power over people etc then that will effect how it happens and when. greed and power everywere<G>. plenty of info on internet to learn anything for diy.

politics = who is the best actor
Game Theory puts limits on even Mr. T. Soprano's conduct and kinda' casts doubt on "free will", but there is plenty of latitude within these constraints.
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Old 01-23-2009, 05:03 PM   #27
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How about some education then... What would a home owner such as myself be more likely to do than you, to cause an arc flash in my panel?
Cause a bus bar or an energized lug to make contact with the enclosure. By not recognizing the hazard.

A do it yourselfer home owner would not want to pay the money for the protective gear OSHA requires of people who do electrical work for a living. Nor would the home owner wish to pay the money for the training involved.

How could the government require homeowners to get training in electrical work? How much training? Would the government also require training in plumbing? Power equipment operation to mow the lawn?

Has anyone ever worked on the harmless low voltage telephone wire while kneeling in the wet dirt and had the phone ring? I have. Once. Wow that hurt. I had years of electrical training when that happened. But no telephone training.

My state recently passed a law requiring anyone working on electrical installations and repairs to have a license. Home owners are exempt. So a trained handy man or a maintenance electrician can not do electrical work, but a home owner with no training what so ever can install an electric service or work inside their live panel. Make any sense?

These are just some issues to think about. Electricity can be dangerous.
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Old 01-24-2009, 05:22 PM   #28
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So a trained handy man or a maintenance electrician can not do electrical work, but a home owner with no training what so ever can install an electric service or work inside their live panel. Make any sense?
Sure it makes sense. The government has a lot more power to regulate businesses than it does to regulate people's private actions on their own property. Most would agree this is the way it should be, and it is already this way in most states already.
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Old 01-25-2009, 10:34 AM   #29
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Sure it makes sense. The government has a lot more power to regulate businesses than it does to regulate people's private actions on their own property. Most would agree this is the way it should be, and it is already this way in most states already.
Then why can't we drive a car without training and a license? Or install our own septic tanks? Or get a hunting license without taking a hunter safety course?
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Old 01-25-2009, 11:18 AM   #30
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Then why can't we drive a car without training and a license? Or install our own septic tanks? Or get a hunting license without taking a hunter safety course?
Endangering yourself is one thing, endangering others is another. Imagine what a drunk airline pilot could do, or a suicidal guy who works in a Nuclear Power Plant.

But ". . .interest groups and other political participants will use the regulatory and coercive powers of government to shape laws and regulations in a way that is beneficial to them."

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