TW90 is about all we stock.Ive used it to wire parking gates light posts etc with never a problem from inspectors.Basically any pipe that gets put in the ground will eventually get wet from infiltration or condensation and they've never said a word.Where i work any wire that leaves a panel has to be tw90.
The general impression i get is that it handles water,oil and other liquids the best.In fact i thought thats what the W is about?I don't know this for a fact though.
cheers
