Stray Voltage on Pool Equipment

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Rjryan

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Trophy Club, Texas
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Master Electrician
Does anyone know of a website " Electrahealth.com " They claim a 60mamp current on your pool equipotential grounding conductor (stray voltage) is dangerous and they can eliminate it. If I understand the definition of stray voltage "Small voltages often exist between two grounded objects in separate locations, due to normal current flow in the power system". Sounds impossible to me to eliminate and no explaination as to how on the website, I see, just products on the website. Does anyone have any idea of if this technology exists and that it could
accomplish this or is this "snake oil"? YouTube video can be accessed by website information and since when are milliamperes dangerous in this small amount. Also notice in there video no Ground fault breakers on pool equipment and grounds and neutrals on the same buss. Bad information for profit as far as I can see and dangerous misinformation , but I have been wrong before.
 
If you have 60 amps of current flowing in your pool bonding conductor(s), something is very seriously wrong.

There should not be any voltage between the bonded points of the pool system. If the bonding has been correctly installed, the only way you could have a voltage difference between the bonded points is if there is enough current flowing on the bonding conductors.
 
don_resqcapt19 said:
If you have 60 amps of current flowing in your pool bonding conductor(s), something is very seriously wrong.

There should not be any voltage between the bonded points of the pool system. If the bonding has been correctly installed, the only way you could have a voltage difference between the bonded points is if there is enough current flowing on the bonding conductors.
Click to expand...
I think they are speaking in milliamps. And I don't know if that's good, Bad or indifferent. ;o)
 
don_resqcapt19 said:
If you have 60 amps of current flowing in your pool bonding conductor(s), something is very seriously wrong.

There should not be any voltage between the bonded points of the pool system. If the bonding has been correctly installed, the only way you could have a voltage difference between the bonded points is if there is enough current flowing on the bonding conductors.
Click to expand...
don_resqcapt19 said:
If you have 60 amps of current flowing in your pool bonding conductor(s), something is very seriously wrong.

There should not be any voltage between the bonded points of the pool system. If the bonding has been correctly installed, the only way you could have a voltage difference between the bonded points is if there is enough current flowing on the bonding conductors.
Click to expand...
I should have spelled millivolt out, but there is a small m before amperes and the whole point is they are saying that the "stray voltage" in millivolts is a problem.
 
Biggest safety factor is properly installed equipotential bonding. When done correctly incidental or accidental presence of current can occur without it causing significant health concern. Any significant voltages being present is an issue that needs addressing, Locating the source and cause to remediate, not throwing some snake-oil product at it. That being said, also NEV of any significant value should be explored and remediated, but NEV can and does vary throughout the day depending on loads on the system. But to totally alleviate NEV would be impossible with our multi grounded electrical system. Thus EQ bonding use, whether pool or farming applications.
 
The safety quest is low difference of potential between Planet Earth and the AC system Neutral /Safety Ground (EGC).
It's not unusual to find a small amount of current flowing between two points on Planet Earth.
(The AC system GEC would be one point and the pool, the other)
 
Speedskater said:
The safety quest is low difference of potential between Planet Earth and the AC system Neutral /Safety Ground (EGC).
It's not unusual to find a small amount of current flowing between two points on Planet Earth.
(The AC system GEC would be one point and the pool, the other)
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The pool bonding does not change that difference in potential....it simply raises all of the bonded parts to the same potential as the the system neutral. That is why you have to bond the perimeter so that when you get off of the pool, the perimeter surface and the water is at the same potential. There will still be a potential between the perimeter surface and the earth and a possible step or touch potential between those points, but not as big of an issue because your body surface is not in the water.
 
Speedskater said:
250.52(B)(3) says they can't be USED as a system Ufer.
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My point is that no matter what the code says the pool rebar is a grounding electrode and acts as such.

It doesn't change anything if I intentionally use it as a grounding electrode, or if it just becomes a grounding electrode as a result required of the required pool bonding.
 
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