Plug wires

[DanEC]

Originally Posted by ACHiPo

Umm, close but not quite. While dielectric grease itself is non-conducting, using it on electrical contacts can improve their reliability by blocking corrosion and oxidation. The metal contacts still complete the circuit, the grease surrounds the contact points to reduce oxidation. It can also prevent arcing between contaminated insulators like plug boots and ceramics.
https://en.wikipedia.org/wiki/Silicone_grease

Dielectric grease is non-conductive but I used it for years without any conductive issues. But I then discovered No Ox (stands for no oxidation) which is an electrical conductor grease with low dielectric properties. It's specifically made for electrical connections. So I've switched over to it for electrical connections now.

I have a WiFi security camera system around my house with 12V power from attic receptacles and I've had a heck of a time keeping the cameras on and sending data to the recorder. One would fall off line after just an hour or so and another every day or two. I finally went around and put No Ox on all the antenna connections and all the 12 volt power cord extension connections and the plug blades at the receptacles. It's been a month now since I last lost a camera connection. Definitely good stuff.