horse barns

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steve m

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I was wondering if you have to bond the concrete floor if the floor is just concrete no rebar or any metal in the floor. I would think it doesn't have to because when you have a whirl pool tube that is with pex instead of cooper there is no bonding for this.
 
horse barns

Yes, I did and there is no wire mesh or any other metal in the concrete, so my point is there is no way the floor would be energized. So if there is no way to energize you shouldn't have to.
 
Concrete floors are conductors and can become "energized" to a point to be harmful to livestock when they have feet on the floor and on the earth, or drinking from a water tub with an electric heater, etc. 547 is requiring a equipotential ground as with a pool
 
You need to do a little studying on stray voltage. Current may be, most likely is, flowing through the earth in your area. Just the way it is even in a normal properly functioning system. Setting up an equipotential plane will help to limit the voltage difference between nose (in water trough) and feet on concrete or front feet on concrete to rear in mud.
 
A whirlpool tub (hydromassage tub) does not have the same requirements as spas and swimming pools. Type of water piping makes no difference of whether an equipotential plane is needed or not.
 
Similiar situation; 120 V GFCI protected outlet for electric water heater (heater

is in the bucket). Water bucket is in the horse corral. Think mud or dirt.

Is any other equiponetal bonding required?
 
John120/240 said:
Similiar situation; 120 V GFCI protected outlet for electric water heater (heater

is in the bucket). Water bucket is in the horse corral. Think mud or dirt.

Is any other equiponetal bonding required?
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From 547.10 2008 NEC:

(A) Where Required. Equipotential planes shall be installed where required in (A)(1) and (A)(2).
(1) Indoors. Equipotential planes shall be installed in confinement areas with concrete floors where metallic equipment is located that may become energized and is accessible to livestock.
(2) Outdoors. Equipotential planes shall be installed in concrete slabs where metallic equipment is located that may become energized and is accessible to livestock.
The equipotential plane shall encompass the area where the livestock stands while accessing metallic equipment that may become energized.
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If these conditions do not apply the EP is not required. The buckets you mention are typically not metallic they also are portable and not stuck in the ground or concrete like fences rails or large water tanks or feed equipment. Those are all the items that will have you pulling your hair if they are not all bonded together as well as to the EP with stray voltage problems when or if you ever have these problems.
 
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