I need to install a cable which will come in contact with a central heating pipe. It is 2 core carrying 5V, 500mA DC power to a simple circuit that can't run on batteries. The pipe could get to 82 degC if the central heating is really cranked up.
Now, I can find heat resistant 2 core that will run to 100 degC but it is designed to handle 5 A so it a bit overkill in this situation, it's also twice as thick than I would like.
What are the alternatives for this problem? Could I use normal cable and cover it in something? I've used material sleeves for 300 degC work in the past but I am wondering if simple heat shrink will do the job seeing as it is much much cheaper?
Does anyone have any suggestions or experience that could solve this problem from the wire point of view and not simple adding a spacer between the pipes and the cable (which could get dislodged)