Shock from Power Tool - What is tooo much? Tips on fixing this?
 

I have a power tool that occasionally gives me a little tingle when I
touch it with an abraded area of skin or maybe the cuticles of my
fingers. It doesn't shock my through dry skin.
I tested the device with a volt ohm meter and got a current....as did
just my body and a plant I tried on a whim.
How much leakage is too much?
What can I do to fix this problem?
I don't mind the "Shock" (it really isn't enough to even call it that)
but don't want the kids to find me dead on the floor one day
electrocuted.

I don't have a GFCI ( Y E T ) on the circuit but will put on one there
soon.
Suggestions on trouble shooting and fixing this problem?

Shock from Power Tool - What is tooo much? Tips on fixing this?
 

On Apr 25, 3:20*am, wrote:
I have a power tool that occasionally gives me a little tingle when I
touch it with an abraded area of skin or maybe the cuticles of my
fingers. *It doesn't shock my through dry skin.
I tested the device with a volt ohm meter and got a current....as did
just my body and a plant I tried on a whim.
How much leakage is too much?
What can I do to fix this problem?
I don't mind the "Shock" (it really isn't enough to even call it that)
but don't want the kids to find me dead on the floor one day
electrocuted.

I don't have a GFCI ( Y E T ) on the circuit but will put on one there
soon.
Suggestions on trouble shooting and fixing this problem?

Information is not complete .............. but ......... Will assume
for moment this is in a North American situation?
Sounds as though the (metal?) frame of the tool is not grounded?????
(Or there is something very wrong with the power supply or generator
or inverter that is supplying the power?)
If not grounded and even if there is not an actual metallic fault
within the tool there may be sufficient capacitance between the live
windings/wiring etc. inside the tool and the frame to couple a few
micro-amps/milli-amps of detectable current to a human hand touching
the frame. It only takes a few thousandths of an amp to shock and
perhaps kill ... hence GFIs which disconnect with a few l milli-amps
of leakage.
Potentially very dangerous; because even at North American voltages
(probably 115 volts) and frequency 60 hertz) sufficient current could
flow, perhaps suddenly and without warning to kill someone.
The worst situation would be if one was wearing say leather shoes
standing on a damp surface such as concrete or bare earth (or metallic
ladder) and the hands were a little sweaty from physical activity; all
providing an excellent path for current to flow through the trunk of
the body, thus stopping the heart!
IMO if a GFI was used there might be sufficient such leakage to
unbalance and operate it; at very least the frame of the device should
be grounded.
If it has metal frame, tool does have a 3 pin plug into a properly
grounded outlet?????? maybe the grounding wire (usually green!) inside
the tool has broken off!
Personally I wouldn't use the tool until situation corrected. Or
replaced.

Shock from Power Tool - What is tooo much? Tips on fixing this?
 

wrote in message
...
I have a power tool that occasionally gives me a little tingle when I
touch it with an abraded area of skin or maybe the cuticles of my
fingers. It doesn't shock my through dry skin.
I tested the device with a volt ohm meter and got a current....as did
just my body and a plant I tried on a whim.
How much leakage is too much?

The accepable amount of current coming through the case and into your body
is zero.



What can I do to fix this problem?

You have a short circuit, that has to be fixed.


I don't mind the "Shock" (it really isn't enough to even call it that)
but don't want the kids to find me dead on the floor one day
electrocuted.

Good idea. Even if it is not the kids that find you dead on the floor,
fixing the problem now is a really great idea.


I don't have a GFCI ( Y E T ) on the circuit but will put on one there
soon.
Suggestions on trouble shooting and fixing this problem?

Two kinds of tools exist, those that have grounded cases and three prong
plugs, and those that are "double insulated.

The first type no part of the wires or any electrically "hot" conductor is
supposed to connect with the case of the tool, and if it does, then the
ground is supposed to carry the current back rather than your body.

The double insulated type of power tool has a plastic shell between you and
the wires inside.

Since you are getting zapped, you probably have the first type and there is
some internal short like a wire that the insulation is worn, or the switch
inside is broken. Split the case and inspect, or take the tool to the shop
for repair.

Also inspect the cord. If damaged it is possible that the leak is between
the hot and the ground and back feeding to the case of the tool.

You can buy GFIC extension cords also but that does not fix the problem.

--

Roger Shoaf

About the time I had mastered getting the toothpaste back in the tube, then
they come up with this striped stuff.

Shock from Power Tool - What is tooo much? Tips on fixing this?
 

Sounds like the tool is dangerous. I'd be thinking to cut
the cord off, and put the tool in the trash.

--
Christopher A. Young
Learn more about Jesus
www.lds.org
..


wrote in message
...
I have a power tool that occasionally gives me a little
tingle when I
touch it with an abraded area of skin or maybe the cuticles
of my
fingers. It doesn't shock my through dry skin.
I tested the device with a volt ohm meter and got a
current....as did
just my body and a plant I tried on a whim.
How much leakage is too much?
What can I do to fix this problem?
I don't mind the "Shock" (it really isn't enough to even
call it that)
but don't want the kids to find me dead on the floor one day
electrocuted.

I don't have a GFCI ( Y E T ) on the circuit but will put on
one there
soon.
Suggestions on trouble shooting and fixing this problem?

Shock from Power Tool - What is tooo much? Tips on fixing this?
 

I have a power tool that occasionally gives me a little tingle when I
touch it with an abraded area of skin or maybe the cuticles of my
fingers. It doesn't shock my through dry skin.
I tested the device with a volt ohm meter and got a current....as did
just my body and a plant I tried on a whim.
How much leakage is too much?
What can I do to fix this problem?
I don't mind the "Shock" (it really isn't enough to even call it that)
but don't want the kids to find me dead on the floor one day
electrocuted.

I don't have a GFCI ( Y E T ) on the circuit but will put on one there
soon.
Suggestions on trouble shooting and fixing this problem?



*When I worked for my dad hundreds of years ago he had corded tools that
would occasionally have the same problem. It was always in the cord where
it entered the power tool. That part gets a lot of stress and the
insulation on the cord wears out. The solution at that time was to either
shorten the cord or replace it altogether.

BTW that is an accident waiting to happen. Don't use that tool until it is
fixed. There is no such thing as acceptable leakage through a human.
Install a GFI today.

Shock from Power Tool - What is tooo much? Tips on fixing this?
 

John Grabowski wrote:
(snip)
*When I worked for my dad hundreds of years ago he had corded tools that
would occasionally have the same problem. It was always in the cord
where it entered the power tool. That part gets a lot of stress and the
insulation on the cord wears out. The solution at that time was to
either shorten the cord or replace it altogether.

BTW that is an accident waiting to happen. Don't use that tool until it
is fixed. There is no such thing as acceptable leakage through a human.
Install a GFI today.

I was gonna say, it is a Darwin filter in the making. But by the time
people start hanging out on here, they usually already had kids, so it
doesn't apply. But yeah, DUH! If a tool is 'tingly', you fix or replace.
And if you replace, you throw it away in pieces so somebody else does
not get hurt.

--
aem sends...

Shock from Power Tool - What is tooo much? Tips on fixing this?
 

On Apr 25, 12:20*am, wrote:
I have a power tool that occasionally gives me a little tingle when I
touch it with an abraded area of skin or maybe the cuticles of my
fingers. *It doesn't shock my through dry skin.
I tested the device with a volt ohm meter and got a current....as did
just my body and a plant I tried on a whim.
How much leakage is too much?
What can I do to fix this problem?
I don't mind the "Shock" (it really isn't enough to even call it that)
but don't want the kids to find me dead on the floor one day
electrocuted.

I don't have a GFCI ( Y E T ) on the circuit but will put on one there
soon.
Suggestions on trouble shooting and fixing this problem?

Somewhere inside the case a hot wire is touching the case. I smiled,
as I thought back to the drill I used as a child. That drill would go
for weeks at a time just being a drill, then it would bite, and bite
hard, I couldn't just open my hand and let it drop, it would stick
fast with the electricity & sometimes shaking it off wouldn't even
work. I'm sure i was a comical sight dancing around with the drill
defying gravity off of my palm. I had no replacement, and it happened
infrequently, so I kept using it. Times were different, folks didn't
try to child proof everything. I can tell you it was much worse
barefoot, than wearing tennis shoes.

Shock from Power Tool - What is tooo much? Tips on fixing this?
 

*When I worked for my dad hundreds of years ago he had corded tools that
would occasionally have the same problem. It was always in the cord
where it entered the power tool. That part gets a lot of stress and the
insulation on the cord wears out. The solution at that time was to
either shorten the cord or replace it altogether.

BTW that is an accident waiting to happen. Don't use that tool until it
is fixed. There is no such thing as acceptable leakage through a human.
Install a GFI today.

I was gonna say, it is a Darwin filter in the making. But by the time
people start hanging out on here, they usually already had kids, so it
doesn't apply. But yeah, DUH! If a tool is 'tingly', you fix or replace.
And if you replace, you throw it away in pieces so somebody else does not
get hurt.


*Sometimes kids emulate their parents. If his kid decides one day he needs
to drill or cut something and helps himself to dad's power tool.....

Shock from Power Tool - What is tooo much? Tips on fixing this?
 

"John Grabowski" wrote in
:

*When I worked for my dad hundreds of years ago he had corded tools
that would occasionally have the same problem. It was always in the
cord where it entered the power tool. That part gets a lot of
stress and the insulation on the cord wears out. The solution at
that time was to either shorten the cord or replace it altogether.

BTW that is an accident waiting to happen. Don't use that tool
until it is fixed. There is no such thing as acceptable leakage
through a human. Install a GFI today.

I was gonna say, it is a Darwin filter in the making. But by the time
people start hanging out on here, they usually already had kids, so
it doesn't apply. But yeah, DUH! If a tool is 'tingly', you fix or
replace. And if you replace, you throw it away in pieces so somebody
else does not get hurt.


*Sometimes kids emulate their parents. If his kid decides one day he
needs to drill or cut something and helps himself to dad's power
tool.....



or if the guy forgets about it and uses it where there's a puddle,or while
touching a good ground. then....ZAP!....thud.

--
Jim Yanik
jyanik
at
localnet
dot com

Shock from Power Tool - What is tooo much? Tips on fixing this?
 

Probably before they had polarized plugs, too.

--
Christopher A. Young
Learn more about Jesus
www.lds.org
..


"Eric in North TX" wrote in message
...


Somewhere inside the case a hot wire is touching the case. I
smiled,
as I thought back to the drill I used as a child. That drill
would go
for weeks at a time just being a drill, then it would bite,
and bite
hard, I couldn't just open my hand and let it drop, it would
stick
fast with the electricity & sometimes shaking it off
wouldn't even
work. I'm sure i was a comical sight dancing around with the
drill
defying gravity off of my palm. I had no replacement, and it
happened
infrequently, so I kept using it. Times were different,
folks didn't
try to child proof everything. I can tell you it was much
worse
barefoot, than wearing tennis shoes.

Shock from Power Tool - What is tooo much? Tips on fixing this?
 

Stormin Mormon wrote:

Probably before they had polarized plugs, too.


And ones with grounding pins, too too.

Jeff

--
Jeffry Wisnia
(W1BSV + Brass Rat '57 EE)
The speed of light is 1.8*10e12 furlongs per fortnight.

Shock from Power Tool - What is tooo much? Tips on fixing this?
 

On Apr 25, 3:20*pm, jeff_wisnia
wrote:
Stormin Mormon wrote:
Probably before they had polarized plugs, too.

And ones with grounding pins, too too.

Jeff

--
Jeffry Wisnia
(W1BSV + Brass Rat '57 EE)
The speed of light is 1.8*10e12 furlongs per fortnight.

Yeah, before all that I turned 10 in '59, so around that time. I liked
to build stuff, boats, cars & such, crude, but entertaining. There was
no shortage of wood scraps with a cabinet shop in the basement. I
still don't know it the shocking drill gift was to encourage or
discourage me, Dad was a hard man to read.