automate0042
Member
This may be the first time I've posted here- my question surrounds the proper connection of a municipal wellhouse water pipe to the grounding electrode system. I am more a troubleshooter than an installer, and I have been working lately in several municipal well water pump houses and haven't seen a "grounding electrode conductor" connected to any of the discharge piping. Generally, these wellhouses are 30 plus yrs old w/ varying degrees of mods thru the years. The supplies are 480 v 3 wire corner gnd delta to a control panel, supplying 50 hp submersible pumps. The piping within the wellhouse is usually 8 foot or so of 4-6 inch cast iron before it exits thru the wall, and steel piping all the way back to the pump. Usually there is a conduit run to the pump with a foot or so of sealtite on to the junction box. Am i missing something or should there be a GEC and clamp run to the piping. I about fell over when I saw the price of a 6 inch ground clamp- glorified U bolt w/ copper strap.