To give a bit of background. We brought two houses (that used to be one) and subsequently have two electrical supplies and two consumer units. We are in the process of converting the houses back into one but it will be some time before we can do the electrics.
The electrics in house one (where the only gas supply is) are modern and earthed correctly (checked by local electrician); this house contains the boiler which now serves both houses. This house has a lounge, 1 bedroom, kitchen and bathroom. Single Phase Supply.
House two has a new consumer unit and serves a new kitchen, lounge, and 3 bedrooms. 3 phase supply (no 3 phase appliances anywhere)
My question is earth bonding. Because house 1 is earthed and the cold and hot water pipes feed both houses does the supply in house two also need bonding to any pipes? Would the two consumer units conflict in any way?