I live in NC and its gets humid here. Sometimes in the morning it looks like it rained overnight. You would have to seal and purge the air out with a gas as the tele companies do to keep the water ou
Would someone please explain to me why you can seal a water pipe made of PVC and withstand over 100 PSI but not be able to seal a PVC pipe against 0.0 PSI because it has wires in it? Sure some region
because you can't seal where the wires go in.. I used to build a lot of oil insulated HV gear, and my one take home lesson is: "oil always leaks". The tiniest hole or porosity is enough to let air in
Jim, I don't disagree with your math but I do disagree with your statement that you can't seal the conduit. Silicone rubber around snug fitting holes in a PVC pipe cap are sufficient but if you want
You are are not sealing against 0 psi, but against several inches of sustained water pressure. Yes it is very difficult to "seal" cable entry into conduit. Sure some regions of the USA have high humi
Lots of opinions and no consensus. Typical. I didn't have nary a drop of water in my 3 inch conduit 6 months ago but I will check again because of all the folks who think all buried conduits have wat
I didn't have nary a drop of water in my 3 inch conduit 6 months ago but I will check again because of all the folks who think all buried conduits have water. It's not that all buried conduit will ha