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Caravan hook up
Former Community Member
Hi I am fitting a caravan hook up on the wall next to the dno incomer box. No wires exposed. Do I still require an earth rod. The earth bond will be prob 1 ft long inside so not exposed. I know if I fit the box away using swa then yes earth rod would be used.
PVC cables are not suitable for being left in standing water ...
I don't think we'd expect hook-up leads to be immersed in water for extended periods ... if site conditions were that bad then the PVC sheath on the SWA cables supplying the hookups are going to be in far more trouble. For one case of someone throwing a hook-up cable through a pond to supply a seasonal pitch, there must be millions of cases of the grass being cut or others walking around the pitch.
- Andy.
PVC sheathed armoured cables are suitable, PVC flex is not.
PVC used for T&E and flex is semi-permeable. It's at best splashproof. Sitting in a puddle for a period of time is enough.
I have first-hand experience of someone running H05VV-F through an underground duct, to supply CCTV cameras, and asking me why RCDs were tripping after only 2 days. They were sat in well under half an inch of water for a very short distance, certainly under 300 mm of cable length.
Thousands of orange PVC flexes across wet camp sites don't appear to have shown any problems in practice - and most of them have been in the wet for much more than a couple of days. I still fear we're solving a theoretical problem at the expense of practical ones.
PVC cables are not suitable for being left in standing water ...
I don't think we'd expect hook-up leads to be immersed in water for extended periods ... if site conditions were that bad then the PVC sheath on the SWA cables supplying the hookups are going to be in far more trouble. For one case of someone throwing a hook-up cable through a pond to supply a seasonal pitch, there must be millions of cases of the grass being cut or others walking around the pitch.
- Andy.
PVC sheathed armoured cables are suitable, PVC flex is not.
PVC used for T&E and flex is semi-permeable. It's at best splashproof. Sitting in a puddle for a period of time is enough.
I have first-hand experience of someone running H05VV-F through an underground duct, to supply CCTV cameras, and asking me why RCDs were tripping after only 2 days. They were sat in well under half an inch of water for a very short distance, certainly under 300 mm of cable length.
Thousands of orange PVC flexes across wet camp sites don't appear to have shown any problems in practice - and most of them have been in the wet for much more than a couple of days. I still fear we're solving a theoretical problem at the expense of practical ones.
