How to handle unused wires??

[BigFlapper]

I'm finishing up with installing sensors etc. and I have a small bundle of wires remaining. If I cut them off close to the source, leaving 4 in. or so do I need to seal off the ends? No power wires in the bundle.

Thanks
Tom

 

[Battson]

I just bundled them up in tidy coils so they're long if I need them in future, and put a 0.5" of heat shrink over each end.