So I decided to use mineral oil once again for my HV transformer device after debating and even trying paraffin. However, this time I want to be sure my wires passing through the PVC junction box are sealed correctly so no oil leaks through.
The transformers will be inside a 6x6x6 PVC junction box (which takes up about 50% less volume than the prior box I used) and four connections will be needed:
2 low voltage 600 V wires for driving the transformers, and 2 wires for high voltage output (around 100 KVDC)So, these four wires will need to pass through the PVC box into the oil and to the transformers.
In the past, I used two part epoxy to seal the solid wires on the inside of the box with generous application of silicone around the wire outputs on the outside of the box (I added the silicone layers because the outside wire didn't quite have enough insulation and sparks would jump to my hand sometimes... a bunch of layers of silicone around the exit points stopped this).
Wires are all thin 20 gauge solid. I was going to use the same procedure, using the epoxy to seal around the inside of the container where the wire feedthroughs occur with silicone layers on the outside, but maybe there's a better way? As I said before, when all is dry, the interior will be filled once again with mineral oil. The entire volume of the container will be filled with oil, so all holes with wires passing through will need sealed correctly. Thanks in advance for your ideas.