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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.
I also would like to point out that PVC used for SWA, T&E and flexible cables is exactly the same composition, It is NOT water-permeable unless faulty or damaged. If it were the armour of SWA cables buried would be permanently wet, and subject to corrosion and this is not the case. It may be that some of the plasticiser is leached out by permanent immersion, but this is not fatal to the waterproof ability. PVC is damaged by sunlight and heat, and this may cause cracks. Poor quality cable sheaths may use recycled PVC, which could be full of all kinds of C##p, but BASEC cables should be fine. I don't quite know where this PVC is permeable myth came from, but it needs to be put to bed. PVC hoses do not leak, even under high pressure, so why should cables? Plasticised PVC is used everywhere for liquid containing purposes, the worst effect is seen when it is used for organic solvents where the plasticiser is gradually dissolved out, and the PVC becomes uPVC, like window frames very stiff, but still liquid tight.
I also would like to point out that PVC used for SWA, T&E and flexible cables is exactly the same composition, It is NOT water-permeable unless faulty or damaged. If it were the armour of SWA cables buried would be permanently wet, and subject to corrosion and this is not the case. It may be that some of the plasticiser is leached out by permanent immersion, but this is not fatal to the waterproof ability. PVC is damaged by sunlight and heat, and this may cause cracks. Poor quality cable sheaths may use recycled PVC, which could be full of all kinds of C##p, but BASEC cables should be fine. I don't quite know where this PVC is permeable myth came from, but it needs to be put to bed. PVC hoses do not leak, even under high pressure, so why should cables? Plasticised PVC is used everywhere for liquid containing purposes, the worst effect is seen when it is used for organic solvents where the plasticiser is gradually dissolved out, and the PVC becomes uPVC, like window frames very stiff, but still liquid tight.
