De-icing cables??

SJ

Member
A friend of mine gave me a whole spool of Raychem pipe freeze protection and roof&gutter de-icing cable.H311-3w/ft,120V.I do have an ice damning problem at one spot on new addition.There is no connectors or anything,just the cable,where it was cut.Is this something I could use with the right connectors?If yes are there any install techniques I need to know?I will do some internet research also to see if I can find anything else.

Thanks
Stan
 
That's WEIRD... "Raychem pipe freeze protection and roof&gutter de-icing cable.H311" and it's for "indoor use only"???

On the serious side, a local hardware store sells (used to sell?) the Raychem stuff along with the cordset and termination cap for the other end. I don't know if they still have it, but it works GREAT!
Raychem
 
If it has regular conductors in it, roundish with a black material between the conductors, it is just like FrostX II heat tape. It should not be a problem at any length. The material between the wires is a thermister based compound. When it is cold (0 deg C) it conducts current (lower resistance) as it heats up, the resistance goes up reducing the current until at about 80 degrees it will get no warmer. Thus it prevents freezing and cannot overheat.
The end at the plug should be physically screwed to the plug terminals, and kept apart inside (there is no insulation on them when stripped) Then fill the plug with RTV to prevent Water from getting in. (must do)
The far end is capped of with a silicone rubber cap (the wires are not connected to each other at all, just left cut off and not touching).
Silicone RTV is also good to use on the cap. A piece of small dia. silicone hose about an inch long with a plastic stopper in the end would work well. Make sure the plug has a strain relief to grip the cable at the business end to prevent possible twisting or pull off of the plug. Jim
 

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