First and foremost all new external electrical works must be installed by a PART P registered electrical contractor. The contractor must supply you with full certification once the work is completed. For mains 240v supply SWA ( steel wired armour ) cable is highly recommended and rubber round double insulated cable can be used for low voltage installations ( NOT PVC ). Each supply should also be on its own RCD. Cable should be buried to a safe depth to avoid any unnecessary risk due to garden forks or spades. Equally as important and probably the weakest link in any exterior cable run is the joining of cables. Each joint will need to be 100% water tight and this can be achieved by the use of Magic Gel poured in to junction boxes once the termination is complete or heat shrink kits as per FIG 1 and FIG 2 below. Where possible try and keep all low voltage transformers and joint boxes above ground, this will reduce the risk of water ingress.
FIG 1 FIG 2
|colour:||white, Silver Grey|
|Max wattage:||75 Watt|
|IP rating:||IP 44|
|Materials:||aluminium / glass|
|Material Finish:||Aluminium / Glass|