Prysmian 6243YH Grey 1mm² 3-Core & Earth Cable 50m Drum (93349)

NO this cable must never be used outside clipped to a fence and exposed to the weather the cable is only suitable for indoor uses. The cable you need is SWA or outside rated cable consult a qualified electrician near you for more advice..

We are not experts in this area however we would refer you to BS 5839-6 Clause 16.5. We would also recommend you refer to a trade body NICEIC. 16.5 Recommendations for wiring in Grade D and Grade E systems The following recommendations are applicable. a) Cables used for the mains supply to smoke alarms and any heat alarms, and any interconnecting wiring between all smoke/heat alarms, may comprise any cable suitable for domestic mains wiring. b) The cables in Grade D and Grade E systems should be installed in accordance with the relevant recommendations of BS 7671. c) Conductors used for interconnection of smoke/heat alarms should be readily distinguishable from those supplying power (e.g. by colour coding). d) Cables used for wiring of any unmonitored circuits in Grade D and Grade E systems should be protected against damage in any areas where it might be subject to impact, abrasion or rodent attack. Protection against mechanical damage may be provided by the building construction or by installing the wiring in conduit, ducting or trunking.