Dear all, firstly, thanks for being there. I must make clear, I'm not a sparky, I'm a Fire Risk Assessor, but I've been asked some specific questions about external wiring and I don't know where to find the information. Any clues where to look please? The questions are about the standard/quality of cabling, the recommended types of fixings and the spacing/distancing of the fittings? I guess it might depend on what the installation is, but if anyone can point me in the right direction, I'd be grateful.