I have low voltage lighting in my yard. There was a break in a long run of
wiring. I stripped the ends, spliced together (twisted), covered with vinyl
electric tape and everything seemed to be working. Then the wire burned
through at the splice. The ends seemed to be corroded through . . . covered
with green corrosion. This has happened twice at the same spot. Any
suggestions as to why this is happening and what to do about it?