Somebody in one of these two groups recently said that a concrete based house means you're earthed. Concrete is a bloody good insulator!

Sorry, can't find the post it was mentioned in.

--
A man goes home early and catches another man in bed with his wife.
He drags the naked man out of the house and into his garden shed.
There he secures man's penis in a vice and removes the handle, then starts to sharpen a knife.
The naked man shouts, "You're not going to cut it off are you?"
"No, you are," was the reply. "I'm going to set fire to the shed"

On Wednesday, January 4, 2017 at 12:58:25 PM UTC-5, James Wilkinson Sword wrote:
Somebody in one of these two groups recently said that a concrete based house means you're earthed. Concrete is a bloody good insulator!

Sorry, can't find the post it was mentioned in.



Wrong as usual. Concrete that's been cured and then dried out,
kept away from moisture, may not be a good conductor. But building
concrete, a foundation is such a good conductor, it's the preferred
ground for the building electrical service. An electrode is placed
inside it before the pour.

On Wed, 4 Jan 2017 10:31:06 -0800 (PST), trader_4
wrote:

On Wednesday, January 4, 2017 at 12:58:25 PM UTC-5, James Wilkinson Sword wrote:
Somebody in one of these two groups recently said that a concrete based house means you're earthed. Concrete is a bloody good insulator!

Sorry, can't find the post it was mentioned in.



Wrong as usual. Concrete that's been cured and then dried out,
kept away from moisture, may not be a good conductor. But building
concrete, a foundation is such a good conductor, it's the preferred
ground for the building electrical service. An electrode is placed
inside it before the pour.

Ah yes, the old Ufer ground. That protected a lot of ordinance
throughout the years.

On Wed, 4 Jan 2017 10:31:06 -0800 (PST), trader_4
wrote:

On Wednesday, January 4, 2017 at 12:58:25 PM UTC-5, James Wilkinson Sword wrote:
Somebody in one of these two groups recently said that a concrete based house means you're earthed. Concrete is a bloody good insulator!

Sorry, can't find the post it was mentioned in.



Wrong as usual. Concrete that's been cured and then dried out,
kept away from moisture, may not be a good conductor. But building
concrete, a foundation is such a good conductor, it's the preferred
ground for the building electrical service. An electrode is placed
inside it before the pour.

Best I can tell, my foundation has an Ufer ground. Inside the
exterior wall there is a ground rod going down into the concrete.
Might be tied into the cable tension cables in the foundation. This
is in the desert.

On Wed, 04 Jan 2017 18:31:06 -0000, trader_4 wrote:

On Wednesday, January 4, 2017 at 12:58:25 PM UTC-5, James Wilkinson Sword wrote:
Somebody in one of these two groups recently said that a concrete based house means you're earthed. Concrete is a bloody good insulator!

Sorry, can't find the post it was mentioned in.



Wrong as usual. Concrete that's been cured and then dried out,
kept away from moisture, may not be a good conductor. But building
concrete, a foundation is such a good conductor, it's the preferred
ground for the building electrical service. An electrode is placed
inside it before the pour.

Only if the concrete stays wet. Which won't happen unless it rains a lot.

--
I don't have OCD - I'm just defragmenting the universe.

On Wed, 04 Jan 2017 20:02:30 -0000, "James Wilkinson Sword"
wrote:

On Wed, 04 Jan 2017 18:31:06 -0000, trader_4 wrote:

On Wednesday, January 4, 2017 at 12:58:25 PM UTC-5, James Wilkinson Sword wrote:
Somebody in one of these two groups recently said that a concrete based house means you're earthed. Concrete is a bloody good insulator!

Sorry, can't find the post it was mentioned in.



Wrong as usual. Concrete that's been cured and then dried out,
kept away from moisture, may not be a good conductor. But building
concrete, a foundation is such a good conductor, it's the preferred
ground for the building electrical service. An electrode is placed
inside it before the pour.

Only if the concrete stays wet. Which won't happen unless it rains a lot.

This was originally designed for ammo dumps in the desert so try
again. Where you live, it is always wet isn't it?
The effectiveness is in the contact area, not any single point.

On Wed, 04 Jan 2017 22:12:42 -0000, wrote:

On Wed, 04 Jan 2017 20:02:30 -0000, "James Wilkinson Sword"
wrote:

On Wed, 04 Jan 2017 18:31:06 -0000, trader_4 wrote:

On Wednesday, January 4, 2017 at 12:58:25 PM UTC-5, James Wilkinson Sword wrote:
Somebody in one of these two groups recently said that a concrete based house means you're earthed. Concrete is a bloody good insulator!

Sorry, can't find the post it was mentioned in.



Wrong as usual. Concrete that's been cured and then dried out,
kept away from moisture, may not be a good conductor. But building
concrete, a foundation is such a good conductor, it's the preferred
ground for the building electrical service. An electrode is placed
inside it before the pour.

Only if the concrete stays wet. Which won't happen unless it rains a lot.

This was originally designed for ammo dumps in the desert so try
again.

First time I've seen ammo dumps mentioned. We're talking about houses, concrete floors, and the dangers of being earthed.

Where you live, it is always wet isn't it?

Yes, but not inside the house.

The effectiveness is in the contact area, not any single point.

The top surface of the concrete in the house isn't wet. If it is, your carpet would go mouldy.

--
A man has six items in his bathroom: toothbrush and toothpaste, shaving cream, razor, a bar of soap, and a towel.
The average number of items in the typical woman's bathroom is 337. A man would not be able to identify more than 20 of these items.

On Wed, 04 Jan 2017 22:17:02 -0000, "James Wilkinson Sword"
wrote:

On Wed, 04 Jan 2017 22:12:42 -0000, wrote:

On Wed, 04 Jan 2017 20:02:30 -0000, "James Wilkinson Sword"
wrote:

On Wed, 04 Jan 2017 18:31:06 -0000, trader_4 wrote:

On Wednesday, January 4, 2017 at 12:58:25 PM UTC-5, James Wilkinson Sword wrote:
Somebody in one of these two groups recently said that a concrete based house means you're earthed. Concrete is a bloody good insulator!

Sorry, can't find the post it was mentioned in.



Wrong as usual. Concrete that's been cured and then dried out,
kept away from moisture, may not be a good conductor. But building
concrete, a foundation is such a good conductor, it's the preferred
ground for the building electrical service. An electrode is placed
inside it before the pour.

Only if the concrete stays wet. Which won't happen unless it rains a lot.

This was originally designed for ammo dumps in the desert so try
again.

First time I've seen ammo dumps mentioned. We're talking about houses, concrete floors, and the dangers of being earthed.

The danger is not being earthed when you are talking about ammo and
this was the most effective way to earth them.

Where you live, it is always wet isn't it?

Yes, but not inside the house.

The effectiveness is in the contact area, not any single point.

The top surface of the concrete in the house isn't wet. If it is, your carpet would go mouldy.

It is wet enough to ionize the stuff in concrete.
I didn't make this **** up on the spot, google Ufer.

On 1/4/2017 9:58 AM, James Wilkinson Sword wrote:
Somebody in one of these two groups recently said that a concrete based
house means you're earthed. Concrete is a bloody good insulator!

Sorry, can't find the post it was mentioned in.

Can't help with a link, but I recently replaced my water main with PEX.
That broke the ground to the house and wouldn't pass inspection.
Long story short, research indicated that using rebar in concrete
was a trend in establishing a safety ground. Apparently, there's
enough conductive salt and water in concrete to make it work,
as long as the concrete sits on the ground and you're not in
the desert. Contact resistance is high, but there's a lot of area.

I followed the code and installed two ground rods.
I did some impedance measurements between the rods and the
electrical system ground (before connecting) and determined that the
"grounding" was insufficient to do anything more than
dissipate static electricity, but the
inspector liked it.
I'd guess that hooking to the rebar is at least as good.

On Wed, 04 Jan 2017 10:42:34 -0800
mike wrote:

On 1/4/2017 9:58 AM, James Wilkinson Sword wrote:
Somebody in one of these two groups recently said that a concrete
based house means you're earthed. Concrete is a bloody good
insulator!

Sorry, can't find the post it was mentioned in.

Can't help with a link, but I recently replaced my water main with
PEX. That broke the ground to the house and wouldn't pass inspection.
Long story short, research indicated that using rebar in concrete
was a trend in establishing a safety ground. Apparently, there's
enough conductive salt and water in concrete to make it work,
as long as the concrete sits on the ground and you're not in
the desert. Contact resistance is high, but there's a lot of area.

I followed the code and installed two ground rods.
I did some impedance measurements between the rods and the
electrical system ground (before connecting) and determined that the
"grounding" was insufficient to do anything more than
dissipate static electricity, but the
inspector liked it.
I'd guess that hooking to the rebar is at least as good.


"James Wilkinson Sword" is in the UK...different rules
plus he is the local dole whore loon.

On 1/4/2017 10:48 AM, burfordTjustice wrote:
On Wed, 04 Jan 2017 10:42:34 -0800
mike wrote:

On 1/4/2017 9:58 AM, James Wilkinson Sword wrote:
Somebody in one of these two groups recently said that a concrete
based house means you're earthed. Concrete is a bloody good
insulator!

Sorry, can't find the post it was mentioned in.

Can't help with a link, but I recently replaced my water main with
PEX. That broke the ground to the house and wouldn't pass inspection.
Long story short, research indicated that using rebar in concrete
was a trend in establishing a safety ground. Apparently, there's
enough conductive salt and water in concrete to make it work,
as long as the concrete sits on the ground and you're not in
the desert. Contact resistance is high, but there's a lot of area.

I followed the code and installed two ground rods.
I did some impedance measurements between the rods and the
electrical system ground (before connecting) and determined that the
"grounding" was insufficient to do anything more than
dissipate static electricity, but the
inspector liked it.
I'd guess that hooking to the rebar is at least as good.


"James Wilkinson Sword" is in the UK...different rules
Question wasn't about rules.
Was about concrete as a ground. Unlikely it's much different in the
UK.
plus he is the local dole whore loon.

Count up YOUR posts and try to say that again with a straight face.

On Wed, 04 Jan 2017 19:13:21 -0000, mike wrote:

On 1/4/2017 10:48 AM, burfordTjustice wrote:
On Wed, 04 Jan 2017 10:42:34 -0800
mike wrote:

On 1/4/2017 9:58 AM, James Wilkinson Sword wrote:
Somebody in one of these two groups recently said that a concrete
based house means you're earthed. Concrete is a bloody good
insulator!

Sorry, can't find the post it was mentioned in.

Can't help with a link, but I recently replaced my water main with
PEX. That broke the ground to the house and wouldn't pass inspection.
Long story short, research indicated that using rebar in concrete
was a trend in establishing a safety ground. Apparently, there's
enough conductive salt and water in concrete to make it work,
as long as the concrete sits on the ground and you're not in
the desert. Contact resistance is high, but there's a lot of area.

I followed the code and installed two ground rods.
I did some impedance measurements between the rods and the
electrical system ground (before connecting) and determined that the
"grounding" was insufficient to do anything more than
dissipate static electricity, but the
inspector liked it.
I'd guess that hooking to the rebar is at least as good.


"James Wilkinson Sword" is in the UK...different rules
Question wasn't about rules.
Was about concrete as a ground. Unlikely it's much different in the
UK.

It was more about getting an electric shock by standing on the floor of your house while touching something live. This was suggested by someone recently as being a danger. I just measured some concrete to make sure I wasn't being ignorant, and it was off the scale (20MOhms)

--
The average lifespan of electronic devices is between zero and infinity, or 2 days after the warranty runs out, whichever comes first.

On Wed, 04 Jan 2017 20:00:22 -0000
"James Wilkinson Sword" wrote:

On Wed, 04 Jan 2017 19:13:21 -0000, mike wrote:

On 1/4/2017 10:48 AM, burfordTjustice wrote:
On Wed, 04 Jan 2017 10:42:34 -0800
mike wrote:

On 1/4/2017 9:58 AM, James Wilkinson Sword wrote:
Somebody in one of these two groups recently said that a concrete
based house means you're earthed. Concrete is a bloody good
insulator!

Sorry, can't find the post it was mentioned in.

Can't help with a link, but I recently replaced my water main with
PEX. That broke the ground to the house and wouldn't pass
inspection. Long story short, research indicated that using rebar
in concrete was a trend in establishing a safety ground.
Apparently, there's enough conductive salt and water in concrete
to make it work, as long as the concrete sits on the ground and
you're not in the desert. Contact resistance is high, but
there's a lot of area.

I followed the code and installed two ground rods.
I did some impedance measurements between the rods and the
electrical system ground (before connecting) and determined that
the "grounding" was insufficient to do anything more than
dissipate static electricity, but the
inspector liked it.
I'd guess that hooking to the rebar is at least as good.


"James Wilkinson Sword" is in the UK...different rules
Question wasn't about rules.
Was about concrete as a ground. Unlikely it's much different in the
UK.

It was more about getting an electric shock by standing on the floor
of your house while touching something live. This was suggested by
someone recently as being a danger. I just measured some concrete to
make sure I wasn't being ignorant, and it was off the scale (20MOhms)


LOL Please post a picture of you taking the measurement.

On Wed, 04 Jan 2017 20:00:22 -0000, "James Wilkinson Sword"
wrote:

On Wed, 04 Jan 2017 19:13:21 -0000, mike wrote:

On 1/4/2017 10:48 AM, burfordTjustice wrote:
On Wed, 04 Jan 2017 10:42:34 -0800
mike wrote:

On 1/4/2017 9:58 AM, James Wilkinson Sword wrote:
Somebody in one of these two groups recently said that a concrete
based house means you're earthed. Concrete is a bloody good
insulator!

Sorry, can't find the post it was mentioned in.

Can't help with a link, but I recently replaced my water main with
PEX. That broke the ground to the house and wouldn't pass inspection.
Long story short, research indicated that using rebar in concrete
was a trend in establishing a safety ground. Apparently, there's
enough conductive salt and water in concrete to make it work,
as long as the concrete sits on the ground and you're not in
the desert. Contact resistance is high, but there's a lot of area.

I followed the code and installed two ground rods.
I did some impedance measurements between the rods and the
electrical system ground (before connecting) and determined that the
"grounding" was insufficient to do anything more than
dissipate static electricity, but the
inspector liked it.
I'd guess that hooking to the rebar is at least as good.


"James Wilkinson Sword" is in the UK...different rules
Question wasn't about rules.
Was about concrete as a ground. Unlikely it's much different in the
UK.

It was more about getting an electric shock by standing on the floor of your house while touching something live. This was suggested by someone recently as being a danger. I just measured some concrete to make sure I wasn't being ignorant, and it was off the scale (20MOhms)

Across what surface area?
Why don't you sit on the concrete floor barr assed and grab a hot
wire. Have your widow get back to us.

On 1/4/17 2:00 PM, James Wilkinson Sword wrote:

It was more about getting an electric shock by standing on the floor
of your house while touching something live. This was suggested by
someone recently as being a danger. I just measured some concrete
to make sure I wasn't being ignorant, and it was off the scale
(20MOhms)

I guess one doesn't test earth grounding with a regular ohm meter.
The instructor at one of my code refresher classes asked once if
anyone had
the correct type of tester. No one did out of at least 50
electricians. Earth grounding
is primarily for damage from lightning. He also had a diagram showing
how little current would flow through the earth if a well motor had a
short to the frame. The resistance was so high that there was no way
even a tiny fuse would blow if there was a short.
This is from the meter maker Fluke:
http://support.fluke.com/find-sales/Download/Asset/2633834_6115_ENG_A_W.PDF

On 04/01/2017 18:48, burfordTjustice wrote:

snip

plus he is the local dole whore loon.

And you aren't?

On Wednesday, January 4, 2017 at 1:48:38 PM UTC-5, burfordTjustice wrote:
On Wed, 04 Jan 2017 10:42:34 -0800
mike wrote:

On 1/4/2017 9:58 AM, James Wilkinson Sword wrote:
Somebody in one of these two groups recently said that a concrete
based house means you're earthed. Concrete is a bloody good
insulator!

Sorry, can't find the post it was mentioned in.

Can't help with a link, but I recently replaced my water main with
PEX. That broke the ground to the house and wouldn't pass inspection.
Long story short, research indicated that using rebar in concrete
was a trend in establishing a safety ground. Apparently, there's
enough conductive salt and water in concrete to make it work,
as long as the concrete sits on the ground and you're not in
the desert. Contact resistance is high, but there's a lot of area.

I followed the code and installed two ground rods.
I did some impedance measurements between the rods and the
electrical system ground (before connecting) and determined that the
"grounding" was insufficient to do anything more than
dissipate static electricity, but the
inspector liked it.
I'd guess that hooking to the rebar is at least as good.


"James Wilkinson Sword" is in the UK...different rules
plus he is the local dole whore loon.

I see, you're so dumb you think the laws of physics, the
conductivity of concrete is different in the UK than in the USA.

On 04/01/2017 18:48, burfordTjustice wrote:
"James Wilkinson Sword" is in the UK...different rules

And you aren't?

(Oh. Someone's cross posted this lot to a global list as well as the UK one)

On Fri, 06 Jan 2017 21:51:56 -0000, Vir Campestris wrote:

On 04/01/2017 18:48, burfordTjustice wrote:
"James Wilkinson Sword" is in the UK...different rules

And you aren't?

(Oh. Someone's cross posted this lot to a global list as well as the UK one)

Oh how confusing.

--
While taking down the vitals for a soon-to-be mom, I asked how much she weighed.
"I really don't know," she said.
"Well, more or less," I prompted.
"More, I guess," she answered sadly.

On Wed, 04 Jan 2017 18:42:34 -0000, mike wrote:

On 1/4/2017 9:58 AM, James Wilkinson Sword wrote:
Somebody in one of these two groups recently said that a concrete based
house means you're earthed. Concrete is a bloody good insulator!

Sorry, can't find the post it was mentioned in.

Can't help with a link, but I recently replaced my water main with PEX.
That broke the ground to the house and wouldn't pass inspection.
Long story short, research indicated that using rebar in concrete
was a trend in establishing a safety ground. Apparently, there's
enough conductive salt and water in concrete to make it work,
as long as the concrete sits on the ground and you're not in
the desert. Contact resistance is high, but there's a lot of area.

I followed the code and installed two ground rods.
I did some impedance measurements between the rods and the
electrical system ground (before connecting) and determined that the
"grounding" was insufficient to do anything more than
dissipate static electricity, but the
inspector liked it.
I'd guess that hooking to the rebar is at least as good.

Why did you want inspection? When you do work on your house, you don't tell anyone.

--
Pub sign: Liquor in the front, poker in the rear.

On Wed, 04 Jan 2017 17:58:12 -0000, "James Wilkinson Sword"
wrote:

Somebody in one of these two groups recently said that a concrete based house means you're earthed. Concrete is a bloody good insulator!

Not really true, particularly if it is damp

On Wed, 04 Jan 2017 21:04:15 -0000, wrote:

On Wed, 04 Jan 2017 17:58:12 -0000, "James Wilkinson Sword"
wrote:

Somebody in one of these two groups recently said that a concrete based house means you're earthed. Concrete is a bloody good insulator!

Not really true, particularly if it is damp

If your floor is damp all the way through, you have bigger problems.

Concrete floors are for garages, houses should have wood floors suspended above the ground. What century is the USA living in?

--
In 1839, the imperial Chinese commissioner Lin Zexu wrote a letter to Queen Victoria warning that, unless the British stopped supplying opium to China, he would cut off rhubarb supplies to Britain, killing everyone through mass constipation.

On Wed, 04 Jan 2017 21:11:44 -0000, "James Wilkinson Sword"
wrote:

On Wed, 04 Jan 2017 21:04:15 -0000, wrote:

On Wed, 04 Jan 2017 17:58:12 -0000, "James Wilkinson Sword"
wrote:

Somebody in one of these two groups recently said that a concrete based house means you're earthed. Concrete is a bloody good insulator!

Not really true, particularly if it is damp

If your floor is damp all the way through, you have bigger problems.

Concrete floors are for garages, houses should have wood floors suspended above the ground. What century is the USA living in?

One where we have not solved the termite, hurricane and tornado
problems?

On Wed, 04 Jan 2017 22:14:30 -0000, wrote:

On Wed, 04 Jan 2017 21:11:44 -0000, "James Wilkinson Sword"
wrote:

On Wed, 04 Jan 2017 21:04:15 -0000, wrote:

On Wed, 04 Jan 2017 17:58:12 -0000, "James Wilkinson Sword"
wrote:

Somebody in one of these two groups recently said that a concrete based house means you're earthed. Concrete is a bloody good insulator!

Not really true, particularly if it is damp

If your floor is damp all the way through, you have bigger problems.

Concrete floors are for garages, houses should have wood floors suspended above the ground. What century is the USA living in?

One where we have not solved the termite,

Chemicals are your friend.

hurricane and tornado problems?

Those tend to affect walls and roofs.

--
What's the difference between a naked white woman and a naked black woman?
One's on the cover of Playboy and the other's on the cover of National Geographic.

On Wed, 04 Jan 2017 22:22:05 -0000, "James Wilkinson Sword"
wrote:

On Wed, 04 Jan 2017 22:14:30 -0000, wrote:

On Wed, 04 Jan 2017 21:11:44 -0000, "James Wilkinson Sword"
wrote:

On Wed, 04 Jan 2017 21:04:15 -0000, wrote:

On Wed, 04 Jan 2017 17:58:12 -0000, "James Wilkinson Sword"
wrote:

Somebody in one of these two groups recently said that a concrete based house means you're earthed. Concrete is a bloody good insulator!

Not really true, particularly if it is damp

If your floor is damp all the way through, you have bigger problems.

Concrete floors are for garages, houses should have wood floors suspended above the ground. What century is the USA living in?

One where we have not solved the termite,

Chemicals are your friend.

Fine when they work and don't migrate to the ground water.

hurricane and tornado problems?

Those tend to affect walls and roofs.

If your floor is off the ground, it will just be part of the debris
field when the wind gets up under it.

James Wilkinson Sword posted for all of us...



Somebody in one of these two groups recently said that a concrete based house means you're earthed. Concrete is a bloody good insulator!

Negative, if one looks at an AM radio station the tower is used as the
antenna. Note a big ceramic insulator between the tower and the foundation.
the is a spark gap on the insulator for lighting. If the transmitter is
active then a non conductive ladder to climb the tower. That is why
maintenance is performed at night because they are off the air.


--
Tekkie

On Thu, 05 Jan 2017 20:57:15 -0000, Tekkie® wrote:

James Wilkinson Sword posted for all of us...



Somebody in one of these two groups recently said that a concrete based house means you're earthed. Concrete is a bloody good insulator!

Negative, if one looks at an AM radio station the tower is used as the
antenna. Note a big ceramic insulator between the tower and the foundation.
the is a spark gap on the insulator for lighting. If the transmitter is
active then a non conductive ladder to climb the tower. That is why
maintenance is performed at night because they are off the air.

The base can get wet.

--
Hipatitis (n): Terminal coolness.