So What constitutes a path to ground? *DELETED* *DELETED* *DELETED*

Re: So What constitutes a path to ground?

[ QUOTE ]
...When I teach EHAP classes I tell people that the easiest way to understand minimum approach distance is to think of the electrically charge line as the center of a tube that is 10' in diameter. If ANYTHING is inside the 'tube' you are NOT allowed to access the tree. This includes any part of the tree and a throwline/rope. If you're rigging and a piece of what you're lowering goes inside the 'tube' you've violated the MAD.

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That's really good Tom. Visual images like that help a lot. If I may though, how'd you come up with 10'? I like more like a half a mile
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. Nothin' wrong with 10 feet, just curious how you picked the number.

BTW, FWIW, the distribution phase lines are insulated from the structure, typically a wooden pole, by insulators. I'm not sure how long the insulators are, but they look to be about a foot or so as I see them from the ground. But due to the shape of the insulators, the electrical path is much longer than the length of the insulator itself. Also, that foot or so has to insulate the line from the pole in rain, sleet, snow, and with bird poop. That's a problem on those big tower transmission lines. Birds of prey like to sit on those towers and watch for food. When they poop it runs down the insulator. But, then they are designed to handle that.

I said all that to say, that makes your 10 foot rule look good!
 
Re: So What constitutes a path to ground?

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You have know idea who i am yet talk as if im a friggin retard.

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We here at treebuzz prefer "mentally challenged".


Now, feel free to continue on with your rant...
 
Re: So What constitutes a path to ground?

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"extremely risky, unwise, and potentially lethal."

...Are those the technical terms??? :)

-Tom

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No, anyone should understand those terms.

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Ummm... That was a JOKE! Hello? You know, like a rhetorical question? Ha Ha?
 
Re: So What constitutes a path to ground?

[ QUOTE ]
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"extremely risky, unwise, and potentially lethal."

...Are those the technical terms??? :)

-Tom

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No, anyone should understand those terms.

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Ummm... That was a JOKE! Hello? You know, like a rhetorical question? Ha Ha?

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Sorry Tom, my interpretation and reponse was influenced by the attitude of some previous posts and I missed the humor you intended. My bad, and I apologize for my response to you.

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"What is this about here. You have know idea who i am yet talk as if im a friggin retard.

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You're asking for unsubstantiated opinions about a potentially lethal situation so you can enter and climb an energized tree. That does bring retard to mind.

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...You would think between you and the engineers you could go back and read the first post. Where in there did i do anything but ask an opinion of others. Do i know the answer? I have an opinion.

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Maybe you need to go back and read the engineers' (and others as well) posts. Nobody is gonna give you an opinion without explaining the whole story about a scenario that leads to you climbing an energized tree. To do otherwise would be as irresponsible as climbing an energized tree.

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Appears YOU folks are more able to yammer on about what is obviously not new info. I may not be an engineer...

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Whew, you're not an engineer, what a relief; but you don't have to worry about being mistaken for an engineer.

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...but have a incredible amount of exp climbing in and around the wires around this country of mine. Where i appear to have made the mistake is sticking my nose where it obviously does not belong. Arrogance and treebuzz usualy go hand in hand. Real info.......Condesending crap most times. You appear to know it all, tom yet i believe you have asked the occasional question. Go back to slagging each other about deadwood and tree topping. What joke. "

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Now who's yammering on?

But let me see if I understand this. You have years of experience climbing in and around wires and you come to a group of climbers that you don't think has the experience climbing in and around wires that you do to ask them for their opinion about something you believe you know more about than they do?????

So to reiterate (that'd be yammer in your vernacular), you're asking for unsubstantiated (sans a full disclosure of the implications) opinions about a potentially lethal situation from people you already know more than, so you can enter and climb an energized tree.

Yet more evidence about your mental prowess.
 
Re: So What constitutes a path to ground?

One_bad_ash,

I see you deleted your last post; fortunately I got to read it - didn't see that much wrong with it, but it did prompt me to post this.

You are right that we don't know you. That's why a lot more comments (yammering as you put it) were made beyond what you asked.

Like it or not, by just asking the question suggests you don't know or aren't sure about the scenario you asked about. Isn't it logical to assume that if you had doubts about the throwline issue, you may not realize there are some other issues that need to be addressed as well?

If the info we included is superfluous to you, it's easy enough to disregard. Others might find the info to be life-saving someday.

If you read the posts, you should see that no one made any allusion to your intelligence at all. It was you that took our comments about an energized tree to be condescending. BTW, stating, or even re-stating,the dangers of climbing an energized tree is not condescending.

Tom even asked you why the attitude and you became even more belligerent and insolent toward us.
 
Re: So What constitutes a path to ground?

Ten feet is the minimum approach distance for untrained workers.

this has been in place for many years. Look in your copy of Z133 or poke around the OSHA website too, lots of info there.
 
Re: So What constitutes a path to ground?

Since the initial post was deleted, I'll answer the title, A path to ground is any conductive path that present a resistance that is low enough to allow a potentially lethal current to flow. Really it's any current but for the sake of safety it is more important to consider the level of current sufficient to do harm.

The resistance is a function of a number of variables that can become mind boggling.

Dealing with this situation is a crap shoot.
 
Re: So What constitutes a path to ground?

Since the initial post was deleted, I'll answer the title, A path to ground is any conductive path that present a resistance that is low enough to allow a potentially lethal current to flow. Really it's any current but for the sake of safety it is more important to consider the level of current sufficient to do harm.

The resistance is a function of a number of variables that can become mind boggling.

Dealing with this situation is a crap shoot.

well put.
 
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