What kind of wires are used for high pressure underwater environments?

[Dhanushka]

Hi!

I am recently in a project based on designing a wiring (both power and communication) for a deep high pressure underwater environment. In researching the IEC standards, I found that IP ratings (IP68) is suitable to decide select a suitable wire. I do not have previous experience for this. Also, So I am happy if someone can give me a comment about any of following things.

1. What are the other standards for section of wires for this application.
2. Available wires for this application if you know.
3. Available enclosures for this application if you know.
4. Design aspects of this application.

Thanks

[voltsandjolts]

There are folks who do this for a living:

https://www.te.com/usa-en/products/brands/seacon.html?tab=pgp-story
https://www.eaton.com/us/en-us/catalog/industrial-connectors-assemblies/wet-mate-connectors.html
https://www.macartney.com/what-we-offer/systems-and-products/connectors/
https://www.hydrogroup-uk.com/cables/
http://cre-marine.com/

...etc, etc..