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Old 01-28-2015, 06:24 PM   #41
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Don has already mentioned that they did the experiment. McClary stated why you didn't need to do the experiment and I mentioned that a mike holt member performed the experiment. What more do you need. It will not blow the circuit unless you tie the rod to the service. 120v connected directly to the rod will only wake up the worms unless you live in one of those rare places on earth where you have less than 5 ohms.

V=amps x Resistance
or
R= V/I

R= 120V / 20 amps = 6 ohms
I know that, but ohms law is only half of it as it wont prove what the actual soil resistance is for most rods. Driving a ground rod will actually prove how high the resistance really is. I know its been done before, but nothing would hurt if another person did it again. The more videos are out there the faster the myth will be debunked with ample evidence to back it up.
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Old 01-28-2015, 08:22 PM   #42
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The code would restrict it if anything like a phone line or pluming line was going out to the structure. The issue was that people would often add them latter in time creating an unknown issue. The CMP proposal also mentioned it would be safer eliminating the wire 3 feeds; which I would imagine refers to an open noodle.

POCOs are always an exception, being the only ones who do it in the industry.
yes & yes Meadow

but you're far to polite about it....

The majority of EC's simply ran a 3 wire, not considered potential return noodl....err... existing paths

~CS~
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Old 01-28-2015, 09:48 PM   #43
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Not at all. The ground rod is not a substitute for an equipment grounding conductor. The rods are there to help with voltage surges and lightning. A ground rod, in most cases will never trip a breaker.
Agreed, plus:

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The object of grounding the electrical system and non-current-carrying metal parts is to connect the earth to the equipotential plane, thereby minimizing any potential difference to earth.
The ground rods accomplish this.

Borgi
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Old 01-28-2015, 10:01 PM   #44
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yes & yes Meadow

but you're far to polite about it....

The majority of EC's simply ran a 3 wire, not considered potential return noodl....err... existing paths

~CS~
I think that was the status quo in the 70s and 80s. I see countless Condo and apartment feeders run in 3 wire. Some even done in NM.
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Old 01-28-2015, 10:04 PM   #45
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Agreed, plus:



The ground rods accomplish this.

Borgi
I disagree. Earth is WAAAYYYY to overly used in grounding and bonding. The truth is unless a person is standing on soil, earth potential does not matter. Nor can a ground rod put soil at zero potential. In fact the only way to get equal potential in soil is adding a copper mesh underneath the areas the person is standing on.

When it comes to most grounding and bonding the earth can be ignored entirely nor is it a necessity.
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Old 01-28-2015, 10:26 PM   #46
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I disagree. Earth is WAAAYYYY to overly used in grounding and bonding. The truth is unless a person is standing on soil, earth potential does not matter. Nor can a ground rod put soil at zero potential. In fact the only way to get equal potential in soil is adding a copper mesh underneath the areas the person is standing on.

When it comes to most grounding and bonding the earth can be ignored entirely nor is it a necessity.

Xebo's gonna kick your ass for saying that
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Old 01-28-2015, 10:50 PM   #47
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Xebo's gonna kick your ass for saying that
I could see that
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Old 01-28-2015, 11:39 PM   #48
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Originally Posted by Dennis Alwon View Post
Not at all. The ground rod is not a substitute for an equipment grounding conductor. The rods are there to help with voltage surges and lightning. A ground rod, in most cases will never trip a breaker.
Agreed, plus:

Quote:
The object of grounding the electrical system and non-current-carrying metal parts is to connect the earth to the equipotential plane, thereby minimizing any potential difference to earth.
The ground rods accomplish this.

Borgi



Quote:
Originally Posted by meadow View Post
I disagree. Earth is WAAAYYYY to overly used in grounding and bonding. The truth is unless a person is standing on soil, earth potential does not matter. Nor can a ground rod put soil at zero potential. In fact the only way to get equal potential in soil is adding a copper mesh underneath the areas the person is standing on.

When it comes to most grounding and bonding the earth can be ignored entirely nor is it a necessity.
Are you saying ground rods can be eliminated?

Borg
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Old 01-29-2015, 12:01 AM   #49
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Agreed, plus:



The ground rods accomplish this.

Borgi





Are you saying ground rods can be eliminated?

Borg
Only if you have a UFER

But seriously, they serve no purpose in human safety or normal operation outside of a near by lighting strike.
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