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Do you know RHH Cables?

Jul. 17, 2017

RHH cables are very similar to RHW cables, with two major differences. While only one letter is different in the respective codes, keep in mind what we talked about above. We already covered that the “R” stands for a rubber insulation and the “HH” details the heat resistance.

R: Rubber insulation HH: Heat resistant up to 90 degrees Celsius


RHH aluminum conductor


This means that while RHH aluminum conductors can withstand a higher temperature than RHW cables, they do not possess the water resistance trait that RHW cables boast. This doesn’t mean one cable is better than the other or vice-versa; it simply means that each cable is specifically designed to work in different locations.


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