National Electric Code 680 requires that the water of
the pool also be bonded. This means that the water needs to be in contact with the equipotential bonding grid.
This can be achieved
if there is a properly bonded heater, light niche, bronze handrail anchor or
metal umbrella sleeve underwater.
Otherwise, a length of bonded stainless steel pipe or a bonding probe
can be added to the plumbing at the equipment pad.
Bonding the surfaces around a pool
Section 680 also requires that the decking, or in the case
of a deckless pool or one with concrete paving stones, that the soil
surrounding the pool be bonded. This can
be achieved through the use of a copper mesh or a #8 copper wire that
enciricles the pool. The copper bonding
loop must be attached to the pool’s reinforcing steel at four locations that
are spaced equally around the perimeter.
Your pool doesn't have rebar?
Vinyl liner or fiberglass pools that do not have reinforcing
steel, must have a layer of copper mesh placed below them prior to installation. This copper mesh under such pools must then
connect to the decking loop in four locations, just like a concrete pool.
Contact the author, Paolo Benedetti of Aquatic Technology Pool and Spa at: info@aquatictechnology.com or 408-776-8220. Visit his website at: www.aquatictechnology.com. All Contents © Aquatic Technology Pool & Spa, 2013. All rights reserved.
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To contact the author, Paolo Benedetti of Aquatic Technology pool and Spa, email him at: info@aquatictechnology.com or call 408-776-8220.
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