On Monday, June 29, 2015, Lou Poppler via Stagecraft <<a href="mailto:stagecraft@theatrical.net">stagecraft@theatrical.net</a>> wrote:<div><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
IIRC, there is a parking area underneath this floor, which might imply<br>
some kind of metal conduit.<br>
</blockquote><div><br></div><div><br></div><div>True. The building in question, built circa 1986-87, used steel conduit embedded in the concrete floor for circuiting the floor pockets. When they expanded the main hall in '95, from 50,000 to 71,000 sq ft., they did the same thing, only changing to a lighter gauge stamped steel floor box and less rugged outlets, however they did resist the trend of using PVC conduit, specifically because of the grounding issues Brother Louis speaks of. </div></div><br><br>-- <br>Dave Vick<br>Sent from my iEuphamism<br>