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Caravan Park

Grobbyman
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
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  • 0
    Yes A.ndy, the whole lot is based on assumptions cross relating figures gained etc etc and not wholly based on experimental data because there would no doubt be a bit of an outcry. The figures might be skewed high and probably the 5% is more of a theorectical max risk Actually I understand that the Nazis experimented on Jews etc during world war 2 and proved it was possible to kill with 10 or even 5mA, perhaps less in the right (wrong) circumstances. Whether such terribly gained info was actually takem into account the who knows?. 5% should be a figure we should be aware of even if it`s an absolute max it still shows RCDs are not totally risk free,  they are risk reducers and even those fully in spec probably do not remove all risk and we should be thinking "Well punk, do you feel lucky?" as Clint would say. Sobering thoughts!
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  • 0
    Yes A.ndy, the whole lot is based on assumptions cross relating figures gained etc etc and not wholly based on experimental data because there would no doubt be a bit of an outcry. The figures might be skewed high and probably the 5% is more of a theorectical max risk Actually I understand that the Nazis experimented on Jews etc during world war 2 and proved it was possible to kill with 10 or even 5mA, perhaps less in the right (wrong) circumstances. Whether such terribly gained info was actually takem into account the who knows?. 5% should be a figure we should be aware of even if it`s an absolute max it still shows RCDs are not totally risk free,  they are risk reducers and even those fully in spec probably do not remove all risk and we should be thinking "Well punk, do you feel lucky?" as Clint would say. Sobering thoughts!
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