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Old 11-09-2010, 08:57 PM   #1
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are all fiberglass ladders insulated?


title says it all, do all fiberglass ladders protect against a path to ground, or is there a specific safety listing to look for?

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Old 11-09-2010, 09:00 PM   #2
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are all fiberglass ladders insulated?


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title says it all, do all fiberglass ladders protect against a path to ground, or is there a specific safety listing to look for?
Yes and No depending on how you use it.

The reason why I say yes and no due there is too many variables to be involed and the working ervoment area but techalywise yes they are dielectric by design but the rating will depending on the constuction of the ladder itself that part you will have to check with the manufacter for more info.

And really the major thing with any ladders do not get too close to the power line or do something out of orndary.

Merci.
Marc

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Old 11-10-2010, 05:38 AM   #3
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are all fiberglass ladders insulated?


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title says it all, do all fiberglass ladders protect against a path to ground, or is there a specific safety listing to look for?
You should not be worried about a "path to ground". Electricity is looking to get back to it's source, NOT to "ground".
With an insulated ladder you are protected from far more than the dirt you are standing on.

The reason the earth comes into play is that everything is connected to earth in some way. At the same time, everything should be bonded to the system neutral so that any faults will have a path back to the source and the fault cleared. The earth is a very poor electrical conductor, so a fault to the dirt may or may not do anything, but if it does the resistance is not enough to trip a breaker, but can easily be enough to be fatal to a person.

I must ask, WHY are you concerned with this??
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Old 11-10-2010, 05:51 AM   #4
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are all fiberglass ladders insulated?


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You should not be worried about a "path to ground". Electricity is looking to get back to it's source, NOT to "ground".
With an insulated ladder you are protected from far more than the dirt you are standing on.

The reason the earth comes into play is that everything is connected to earth in some way. At the same time, everything should be bonded to the system neutral so that any faults will have a path back to the source and the fault cleared. The earth is a very poor electrical conductor, so a fault to the dirt may or may not do anything, but if it does the resistance is not enough to trip a breaker, but can easily be enough to be fatal to a person.

I must ask, WHY are you concerned with this??

not for any special reason, I was watching a
this old house clip" on youtube where the electrician needed to replace the service entrance but still needed to give power to the homeowners and the other workers so he climbed his ladder and cut the 2 hots and the neutral live and butt spliced them to a 12 outlet power box, he said the reason he could do that bare handed was because of his fiberglass ladder.
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Old 11-10-2010, 09:48 AM   #5
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are all fiberglass ladders insulated?


I saw that episode too, it is episode 2905. He stood on a fiberglass (I think) ladder, cut the wires, and then connected them. It was pretty dramatic to see him do that and the host was surprised.

Subsailor, can you post a link to the clip?

Description here:
Program #2905
Newton Centre Project, Part 5 of 16
Saturday, November 7, 2009 at 1:30pm ET

...Out front, master electrician Allen Gallant prepares to upgrade the service from 100 amp to 200 amp, but first he sets up temporary jobsite power by making up a new main connection from the street—with live wires...
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Old 11-10-2010, 11:07 AM   #6
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are all fiberglass ladders insulated?


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Old 11-10-2010, 11:56 AM   #7
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are all fiberglass ladders insulated?


I have seen it done and even done it myself. There is much more to be concerned with than just having a fiberglass ladder. One lean on a riser pipe at the wrong time is plenty to get you killed no matter what the ladder is made of.

dumbass kevin from the show is there on an aluminum ladder reaching over nearly touching the service drop. I have seen plenty of drops where the insulation is so weather worn, it really is not safe to consider it insulation.


On top of that, they guy really should have showed the he turned off the main service disco (at least I hope he did) to be sure there was not a load on the line when he started cutting.

another thing he failed to mention; he is now stealing power from the utility company. Now, while there are times they don't get freaked out about this, as a general rule; they don't like people stealing power.

another thing not shown; the temp power turtle does have breakers in it. It is basically a portable panel with receps connected to all of the branch circuit breakers. Hopefully it is rated to be able to handle the kA possible from the power company at that place in the system. That is one reason service rated equipment is used for service equipment.
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Old 11-10-2010, 07:30 PM   #8
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are all fiberglass ladders insulated?


I agree with Nap.,

I have done like this few time as long the drop is good shape but if bad shape I just call the POCO and cut it off from pole side on overhead but underground lateral that diffrent story.

And what I do generally is bring the generator on the jobsite and any outage more than 6 hours I will make a arrangement with the customer with the generator.

Merci.
Marc
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Old 11-10-2010, 10:50 PM   #9
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are all fiberglass ladders insulated?


Thanks for the insights. I knew there were a bunch of details they were leaving out.

Not that I would ever consider doing anything like that anyway!

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Old 11-11-2010, 11:35 AM   #10
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are all fiberglass ladders insulated?


If you're standing on dry ground preferably with rubber foot wear you can probably get away touching the hot, but I think you'd still feel some tingling. I personally would be scared to do something live especially with those big cables. They are harder to work with and it's easy to accidentally cross them or touch two at same time. Getting a shock while on a ladder can be fatal. I know whenever I've gotten shocked my reflexes kick in and I usually let go of anything I may be holding. The biggest shock I've ever gotten was when someone miswired the ground into the hot terminal of a plug end. I'm holding the metal box in one hand and plug it in. No shock at that point. I then touched something metal with my other hand. ZING! that box went flying as far as the cord reached and I jumped 3 feet behind me. Would hate to do that on a ladder lol.

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