PV wire and marine wire - compatable?

[Yoda]

$64,000 question

I know PV grade wire (UV and other resistant for exterior use) is pretty much required exterior on the roof, but once inside can marine wire be used as an extension?

I came up short on my 10 AWG PV wire, but I have plenty of 10 awg marine grade wire available. Can I use it to extend the existing 10 awg PV wire that extends inside the trailer, to tie into the breakers before the MPPT controller?

Thanks for any help
Keith

[TedS]

If the only difference is the covering, wire is wire assuming cu to cu.
it will work.

[Yoda]

If the only difference is the covering, wire is wire assuming cu to cu.
it will work.

Thanks Ted
I used the 10 awg marine wire I have and everything works

Keith

[TedS]

I like marine wire. It is more flexible than other stranded wire.