Re: Electrically conductive garden hose
- From: "Don Young" <notme@xxxxxxxxxxxx>
- Date: Mon, 19 May 2008 21:06:27 -0500
<letterman@xxxxxxxxxxx> wrote in message
news:vuiv24pulul9gmje0kqu5cbq8tm243t0q1@xxxxxxxxxx
Of all the strange things that can happen, this one I would have neverI never knew garden hoses were conductive but gasoline pump hoses are.
expected. I run a farm, I have livestock in electric fences. I am
around these fences daily, and you learn not to touch them, or touch a
weed that is contacting the fence. Every so often I touch the fence.
For some reason touching the fence automatically triggers my mouth to
utter a about 5 to 10 cus words and then I continue what I was doing.
When you have livestock, they still need water, and that means
dragging out a hose and fighting the weather and the ice on the spigot
threads.
During the coldest part of last winter, I was fighting with stiff and
frozen hoses (as always), and I decided to go shopping and see if
there was a hose that would not get stiff when it was cold. I found a
black rubber hose, which claimed to stay soft and pliable in even the
coldest weather. It was costly, but I decided to give it a try.
The good news, it did remain relatively soft and pliable even when the
temps dropped below zero. The bad news, I quickly learned this hose
is electrically conductive. I learned the hard way when the hose
touched the electric fence, and nearly knocked me on my ass. The
common plastic hoses do not conduct. Even when they are wet, I might
feel a tingle, but not enough to bother me, I just lift the hose from
the fence. But this black rubber hose (whether wet or dry), conducts
just like a wire. In fact it seems to amplify the shock. If that
hose is touching the electric fence, I can touch that hose anywhere
along it's 50 foot length and get knocked to the ground.
HOW IN THE HECK CAN RUBBER CONDUCT ELECTRICITY ?
Aside from cutting the hose, I have carefully looked it over. There
are no exposed wires embedded in the rubber, and even if there were
wires in the core of the hose, there would still be rubber in between.
Therefore, the rubber itself is conductive. WTF??????
All I can figure is that the rubber contains a high amount of carbon
and is acting like a resistor which sort of explains why it tends to
amplify the shock.
I called the manufacturer. No one working there, including the top
guy could explain the reason, and said they never heard of such a
thing. They took down my phone number and said they would contact me
if they could answer my question. Of course I never heard back from
them.
Can anyone make any sense of this?
Thanks
Conductive hoses are used to dissipate and prevent buildup of static
electricity charges. Check the hoses at your gas station; they could have
writing on them indicating they are conductive.
The increased shock intensity could be because of better contact over a
larger contact area with your wet/damp hands as well as better grounding if
your shoes and/or the ground was damp.
Tap water is certainly conductive enough to carry an electric fence charge
through any normal hose length so the current could flow through the hose to
the water and then back out to your hand.
Don Young
.
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