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4hv.org :: Forums :: General Science and Electronics
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What is the Method of Insulation for "Lineman's Gloves"?

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quicksilver
Thu Jan 14 2010, 04:38PM Print
quicksilver Registered Member #1408 Joined: Fri Mar 21 2008, 03:49PM
Location: Oracle, AZ
Posts: 679
I have seen several "Lineman's Gloves advertised at differing "voltages" and at quite high prices.

What makes ups the difference between a heavy pair of rubber gloves and proper "lineman's gloves"? Rated at voltages but no mention at current levels seems a bit superficial way to advertise something that is a life saving item.....

What actually makes up the levels of insulation from this standpoint?
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Proud Mary
Thu Jan 14 2010, 07:05PM
Proud Mary Registered Member #543 Joined: Tue Feb 20 2007, 04:26PM
Location: UK
Posts: 4992
What you are paying for is conformity to national and international safety standards. This not only includes the dielectric strength of the material - which is often rubber - but also resistance to punctures, tears, abrasion, and so on, which would render the gloves unsafe.
Non-comformity with safety standard has follow-on legal consequences, that will affect both insurance premiums and insurance payouts if an employee should be killed or injured as a result of wearing defective gloves, or ones not rated for the voltage concerned.
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radiotech
Fri Jan 15 2010, 06:59PM
radiotech Registered Member #2463 Joined: Wed Nov 11 2009, 03:49AM
Location:
Posts: 1546
A 'pole pig' or consumer drop transformer, also called 'pylons' is designed for mounting out of reach. MOTs or NST's are limited
energy devices powered from 120 or 220 volts AC.

When a pole transformer is brought down to where people who are not linemen or power line technicians (modern term) the situation changes. These are high energy devices.

The gloves are a tool, not always worn, easily damaged and carried with a voltage indicator, and a 'hotstick', as part of the truck kit for electricians who operate and repair operating systems.

The majority of contact or arc flash accidents at the voltages that pylons or lines work at involve horrendous burns.
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Patrick
Tue Jan 19 2010, 05:04AM
Patrick Registered Member #2431 Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
Yes, I agree with what was said previously, also all the gloves Ive seen and used were yellow on the inside, and black on the outside, this was to facillitate your ability to check them every morning before you put them on. To properly use linemans gloves, you first trap some air in the glove like a ballon, holding the wrist collar closed, then you squeeze each finger, palm, top and bottom. If the out side is black and the inside is yellow, you should'nt see any yellow else you have a hole, also if the air leaks then you like wise would not use them. Once you are sure they are upto parr, you put them on, and next you then use normal hardware store type leathers or plastic type work gloves over your lineman gloves. The lineman gloves protects you, then the leather glove protects the lineman glove from slashes or pinholes.

Remember the linemans gloves are only to resist voltage, the external most glove protects them while they protect you!

They are important and perfectly safe for 13.5 to 33.8 kv or so ive been told.

-Patrick
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