Heat Trace Cable Buried Treasure
Heat Trace Cable Buried Treasure
(OP)
I have access to the wiring from 2 different heat trace cable sets. The wires I have access to are not the actual ends of the heating cables. They are obviously spliced between the heating cable and the junction box I have access to. I read 156 ohms on one set of wires and 95 ohms on the other. My ohm's law tells me that should mean one set is 100 watts (at 120v) and the other 150w. These numbers do not seem correct as these cables are used to keep a "pipe-in-a-pipe" where it crosses under a bridge, from freezing....each run about 75 feet long. I am wondering if this could mean these are "self regulating" cables or maybe I'm missing something else. They were connected originally to old dial type stats, but they were too rusted to get any info from them. Any thoughts? Thanks!





RE: Heat Trace Cable Buried Treasure
Insulated pipes? If not, then you could also borrow an IR camera and monitor the pipe temperature to see if you see any heat. Or use a "laser" remote IR thermometer to track the pipe temperaturs.
RE: Heat Trace Cable Buried Treasure
Keith Cress
kcress - http://www.flaminsystems.com
RE: Heat Trace Cable Buried Treasure