gregmcc:Niel: No, I did not look at the cable actually. How about a) then, equivalent of double insulation i.e. 2 layers?
It is not hard to find 1500V dielectric, 300V rated network cable. For example http://www.pacificcable.com/Cat_6_Tutorial.htm
The rated voltage is continuous. The dielectric rating is safety in brief overvoltage due to surges, lightning, etc. The company I work at makes electric fence energizers which output 10,000V but still needs a dielectric withstand voltage test primary to secondary.
Given that Cat6 has an extra shield and plastic layer and jacket thicker than the internal wires insulation, I do not see issue.
You also get specialist cables like a so called pink cable rated over 3000V dielectric withstand.
The shield in cat6 is effectly a current carry conductor so that rules out the double insulation, and i've yet to see a cat5/6 cable that is stamped with the markings that it meets the standard for LV installation
Hi, yes there is cat5e/6 cable that is rated (and noted so) for LV installations, I have used quite a bit of it in remote metering installations in apartment blocks, also the pink C-Bus cat5e is LV rated.