I have a question concerning electrical conduit. I have 4 wires coming out of a ½ conduit in to what looks like a small cable vault in the ground. Does Polyseal or any other type of foam meet the requirements for the NEC to seal the open end?
Thanks
Steve
Replies
Electricians use a product called duct seal. It's kind of like a brick of modeling clay, you tear off a hunk and press it into the end of the conduit. You should be able to find it at the big box stores in the electrical department. You can also use silicone caulk, but it's messy to apply and a pain to remove if you need to.