Voltage Gradients can exist because of other Electrical systems in the area too. If you look in 680.26(B)(1) and (3) it specifies that all Metallic Structural Components and parts over a certain dimension shall be bonded together, it says nothing about Electrical items that must exist. So, if the Pool frame is metal, it must be Bonded.
There is an Article somewhere about a Community Pool where people were getting shocks. The source turned out to be an Electrical fault some Blocks away if memory serves me. The problem was with the construction of the pool and the fact that they used coated Rebar. The reasoning was that it would hold up better underground, but because it was coated it did not provide an adequate Bonding Grid. If I can find the Article I will post it here.
Bill
[This message has been edited by Bill Addiss (edited 02-27-2003).]
