On Apr 5, 2:16*pm, Boden wrote:
Gypsy Moth wrote:
I have low voltage landscape lights in my yard. *There was a break in a long
run. *I spliced it together and covered it with vinyl electrical tape. *A
few days later, it looked like it had coroded or burned through at the
splice. *The wire fused ends were 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?

All moist soil is going to be conductive, yours may be more so than is
typical. *Heavy fertilizer application?

Also, under the assumption that you have a step down isolating
transformer that provides the low voltage I'd check to make sure that
one side of your low voltage lighting circuit is grounded. *It is
undesirable and unsafe if the secondary winding is floating w/r to ground.

Vinyl tape is inadequate for buried applications. *There are crimp
connectors available that are made for wet, or buried applications.
They're gel filled and will usually resist the intrusion of water.

The idea of covering a join with vinyl electricacl tape and burying it
in soil seems bizarre/absurd!
Surely not so?
If a splce, to be buried, is attempted at all, soldered wires and gel
filled heat shrink tubing over each wire and then additional double
layers over the entire splice could be attempted and might last a
while?