I have been trying to figure out what 682 really means for 2 years and I can't find anyone who knows enough to start an argument. I suspect it is largely being ignored. Installers are using all plastic enclosures and saying that relieves them. I am stil wondering about the pumps and air blowers you see on a golf course pond.
Personally I see this as bonding the steel in a pad under the equipment or using the copper grid you put under pool pavers in the dirt if this is unpaved ... but folks say that is overkill.
You certainly have to bond all pipes, racks, strut and metal enclosures
