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Caravan Park

I have to replace 6 pitch boxes on a touring van caravan  site.

So six pitch boxes with 4 van hookup points per box, each hookup point protected by a 10A 30mA RCCB.

Unfortunately I've also discovered that the site is wired as a ring in 6mm SWA, buried direct in ground.


Any thoughts on max fuse size to protect a 6mm ring?


Regards

George
Parents
  • You will get all sorts of vehicles and tents and wide variety of people from traditional "camping types", who utilise gas for cooking and have meager electric expectation and to those who bring the contents and appliances of a house and be all electric with  microwaves, ovens and hobs, not to mention the washer dryer in the awning, with a 3 kw heater in there, also, to keep the dog warm.  Many small "5 van" sites, especially, have this as a problem during the colder months and deliberately have 6 amp MCBs fitted to manage usage.  Worryingly, the first electric Motorhome available, in addition to being an electric vehicle, is also "gas free" [ zero carbon ?], so that has an expectation for all electric cooking and heating. 


    The provision the OP describes seems fairly usual for camp sites. Sites that do experience problems with wholesale tripping of a distribution circuit do sometimes go for a full upgrade if their customer base has an expectation of unlimited electric demand and are happy with a higher pitch fee required to fund the new wiring. Where I have seen issues, this is almost always on "Club type Sites" where the caravan and motorhome users do have a high expectation of 16 amps demand per pitch for a significant amount of time and when  the site is very busy the demand per pitch overlaps; say early evening when everyone comes back to site and start cooking and heating simultaneously.
Reply
  • You will get all sorts of vehicles and tents and wide variety of people from traditional "camping types", who utilise gas for cooking and have meager electric expectation and to those who bring the contents and appliances of a house and be all electric with  microwaves, ovens and hobs, not to mention the washer dryer in the awning, with a 3 kw heater in there, also, to keep the dog warm.  Many small "5 van" sites, especially, have this as a problem during the colder months and deliberately have 6 amp MCBs fitted to manage usage.  Worryingly, the first electric Motorhome available, in addition to being an electric vehicle, is also "gas free" [ zero carbon ?], so that has an expectation for all electric cooking and heating. 


    The provision the OP describes seems fairly usual for camp sites. Sites that do experience problems with wholesale tripping of a distribution circuit do sometimes go for a full upgrade if their customer base has an expectation of unlimited electric demand and are happy with a higher pitch fee required to fund the new wiring. Where I have seen issues, this is almost always on "Club type Sites" where the caravan and motorhome users do have a high expectation of 16 amps demand per pitch for a significant amount of time and when  the site is very busy the demand per pitch overlaps; say early evening when everyone comes back to site and start cooking and heating simultaneously.
Children
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