Asked to install 2 lights on a patio (minature vintage street lamp style jobs) max draw 0.5amp between the 2 (120watts total) and a small fountain. Ideally cabling to be discreetly run with minimal upheaval.
Can't bury SWA as the patio is laid on top of the "substantial" concrete floor of what was a garage. Customer veto'd digging a trench in the concrete - So thats plan A out.
Considering SWA or Hi-tuf clipped to the raised stone/concrete edging (raised being maybe 50mm taller) facing the largish stone chips that are the top layer of the patio.
Chance of mechanical damage is...zero essentially ( a table and 3 chairs sits in the middle of the patio, lights are to be several feet away on the edge of the patio), so pondering if SWA is overkill, considering the lack of potential for mechanical damage and that the cabling will be visible, H05 or H07 RNF or similar would be less intrusive, easier and quicker to install and weatherproof. (there is also a gap between the chips and the edging which H07 1.5mm2 3 core would fit into.)
Conduit could end up being a trip hazard and would stick out like a sore thumb. no wall where the lights and the fountain are going, open area of patio adjacent to a concrete slab/flagged path
Supply is from a local Wylex type rewireable board in a weatherproof plastic cabinet, board tests out ok, IR tests for example are >1000 megaohms. 2 spare 5 amp fused ways available, so plan was to add 2 RCD FCUs (one for the lights, one for the fountain) fused down to 3amps, IP68 glands then out to the lights and the fountain, furthest distance from the fuseboard is 4 1/2 metres.
Thoughts?
Can't bury SWA as the patio is laid on top of the "substantial" concrete floor of what was a garage. Customer veto'd digging a trench in the concrete - So thats plan A out.
Considering SWA or Hi-tuf clipped to the raised stone/concrete edging (raised being maybe 50mm taller) facing the largish stone chips that are the top layer of the patio.
Chance of mechanical damage is...zero essentially ( a table and 3 chairs sits in the middle of the patio, lights are to be several feet away on the edge of the patio), so pondering if SWA is overkill, considering the lack of potential for mechanical damage and that the cabling will be visible, H05 or H07 RNF or similar would be less intrusive, easier and quicker to install and weatherproof. (there is also a gap between the chips and the edging which H07 1.5mm2 3 core would fit into.)
Conduit could end up being a trip hazard and would stick out like a sore thumb. no wall where the lights and the fountain are going, open area of patio adjacent to a concrete slab/flagged path
Supply is from a local Wylex type rewireable board in a weatherproof plastic cabinet, board tests out ok, IR tests for example are >1000 megaohms. 2 spare 5 amp fused ways available, so plan was to add 2 RCD FCUs (one for the lights, one for the fountain) fused down to 3amps, IP68 glands then out to the lights and the fountain, furthest distance from the fuseboard is 4 1/2 metres.
Thoughts?
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