Off Grid 12v Solar Inverter

[YGRose]

I'm thinking about purchasing a 12v 1000W inverter/solar controller:

12V solar panels charging kits for caravans, motorhomes, boats, yachts, marine

12V solar panel solar charging kits for motorhome caravan boat campervan yacht marine off-grid

www.photonicuniverse.com

I would like to power a lighting radial circuit with a fan or two and then another circuit for a few double sockets. Would it be best to wire to a consumer unit and then put RCD's in for separate circuits or should I just wire direct? I imagine a consumer unit will mean that it needs grounding, I'd rather avoid grounding rods if possible as it's mobile.

Thanks

 

[YGRose]

Would it make sense to output through a 30mA RCCB and then out through at 16A MCB for sockets and a 6A MCB for the lights? I've seen people advising that this is required, however it seems overkill for a 1000W inverter as it will produce such low A... It seems like a fuse to protect the PV to inverter and another for the battery might be enough. Any help greatly appreciated!

 

[davesparks]

An RCD is pointless unless one pole of the supply is connected to earth through a suitably low impedance.

 

[YGRose]

That's what I thought. What would be the best method using the floating earth supplied on the inverter? Is it possible to run a socket and light ring safely from this?

 

[YGRose]

Or if I simply had an earth spike that I could jab in the ground then I could go ahead and wire it all up like a normal domestic property?