I'm new to this forum and have found some of the advice most useful.
However there seems to be lots of confusion over cross bonding.
Maybe you can clarify.
Kitchen (No boiler).
Power socket (kettle) within reach of sink. Do hot, cold and sink need to be cross bonded. I assume so.
If so, to what earthing point.
A previous post stated it must NOT be the consumer unit unit.
Another stated to ANY earth in ANY socket.
Cable size presumably 4mm min?
What about the radiator. (3 mtrs from sink)
Boiler (not in kitchen)
Does the pipework (copper) have to be cross bonded?
Presumably so. If so to what earthing point?
No electrics other than sealed halogen downlighters and pull cord.
Do all the taps, handles and radiator need to be cross bonded?
and if so to what earthing point?
Should the gas pipe (pre or post meter) be cross bonded.
My understanding is that these "potential contact points" all need to be cross bonded (between one another) but only one location needs to be connected to earth, since all are connected by the pipework (copper) itself.
I, possibly incorrectly, have interpretted that the main earth point should be the supply box / consumer unit rather than "any socket" earth.
If so why 4.0mm cross bonding wires?
Finally what earth cable should run between the supply fuse header and the consumer unit. 4mm or 10mm min?
Appears as though the 2008 regs seek to clarify some of these points.
Any clarification would be appreciated.