Quote Originally Posted by garage nut View Post
With winter right on us I realized that my driveway lights are out. Getting home at after sunset and lights on a daytime switch.
Silicone
When I installed them some 5 years ago I used what we call thin and earth cable...1.5mm sq is good enough to drive the 6 x 60Watt globes spaced equally distant down the drive way.

Upon investigation I found moisture had gotten into the joints where I tapped off to run a supply to the individual lights. On hind sight I should have taken the cable up the post and made the joint above ground at the light fitting, but for now I am stuck with having to mage the joint at the base of the post and subsequently partially under ground.

I used valcanising tape to ensure a waterproof joint but clearly this could not stand the test of time.

I need some proven ideas how to make a lasting waterproof joint. the wire is a single strand copper wire, 1.5mm sq
Silicone filled wire nuts. I'm not sure what you call them but I used some successfully to add some lights to a low voltage accent lighting system.