So I have built several racks and have built several for others and this is the first time I have noticed this. I, like most use foil tape to hold the heat tape in place. I was finishing one of my racks today and had it all plugged in. I had to reach to the back of it and in the mean time shocked the crap out of myself.

At first I thought, great I have a short somewhere, but then I realized that all of the heat tape with foil on them do this.

With the herpstat on full blast, and putting a multimeter across the two pieces of tape, this is what I get.



I thought I would put that out there to serve as warning, and to ask what other tapes that people out there may use as alternatives. As clearly, conductive tape is probably not a good choice and is most likely a disaster waiting to happen.