S
SYKRAPS
HI,
I reaslise that this subject does cause some conflicting opinions but I would like to ask a question to some more experienced guys in this matter regarding the distribution around a Caravan Park.
At the park in question I have been asked to cost for upgrades and possible extensive re-wiring due to a potential massive change in the park layout, but as of yet I have not gained access to the distribution area as it is under lock and key and some nugget has lost the key. I suspect that the park is installed wrong as TN-C-S as there is not an earth rod to be seen throughout the site (this is still to be proved).
My thoughts for the the hook ups is to wire them in groups of 4 with a double length earth rod per group of 4 at the last hook up and then to wire these back to an external distribution point which will serve 6 sets of 4 hook ups with again a double length earth rod and to devorce the DNO earth at the external distribution point so basically just TT the hook ups and the external distribution points.
My 1st question would be whether anyone can provide a link or product code for a suitable external distribution enclosure that will be pre constructed.
My 2nd question would be if you had the choice of re-wiring the positions would you use standard SWA or Split Concentric cable, I have been led to believe that with Split Concentric there is a financial saving and its easier to work (I have never used it myself). Both options would be ducted btw.
My 3rd question is would you fit a time delayed RCD unit in the origin DB or in each of the external distribution points, I am leaning towards the later so that in the event of a fault in one of the vans less people are inconvenienced.
I should perhaps also point out that 16a 30ma DP isolation will be present at each hook up for the 16a socket outlet, I have found these pre constructed for around £50 + VAT with internal metering (can anyone beat this).
Cheers Guys in advance.
I reaslise that this subject does cause some conflicting opinions but I would like to ask a question to some more experienced guys in this matter regarding the distribution around a Caravan Park.
At the park in question I have been asked to cost for upgrades and possible extensive re-wiring due to a potential massive change in the park layout, but as of yet I have not gained access to the distribution area as it is under lock and key and some nugget has lost the key. I suspect that the park is installed wrong as TN-C-S as there is not an earth rod to be seen throughout the site (this is still to be proved).
My thoughts for the the hook ups is to wire them in groups of 4 with a double length earth rod per group of 4 at the last hook up and then to wire these back to an external distribution point which will serve 6 sets of 4 hook ups with again a double length earth rod and to devorce the DNO earth at the external distribution point so basically just TT the hook ups and the external distribution points.
My 1st question would be whether anyone can provide a link or product code for a suitable external distribution enclosure that will be pre constructed.
My 2nd question would be if you had the choice of re-wiring the positions would you use standard SWA or Split Concentric cable, I have been led to believe that with Split Concentric there is a financial saving and its easier to work (I have never used it myself). Both options would be ducted btw.
My 3rd question is would you fit a time delayed RCD unit in the origin DB or in each of the external distribution points, I am leaning towards the later so that in the event of a fault in one of the vans less people are inconvenienced.
I should perhaps also point out that 16a 30ma DP isolation will be present at each hook up for the 16a socket outlet, I have found these pre constructed for around £50 + VAT with internal metering (can anyone beat this).
Cheers Guys in advance.