hi
im cross bonding my water and radiator pipes in 4mm earth cable BUT
(1) what size earth cable should be used from the main earth block to the earth terminal in the consumer unit,at the moment there is 6mm cable,but should 10mm or 16mm be used.
ALSO
(2) what size earth cable should be used from from the main earth block to the main incoming water/gas/electric pipes 6mm or 10mm,at the moment this to is run in 6mm.
(3) what factor determines what cable size should be used,does the difference in cable size make any significant changes?
ALSO
(4)do i need to cross bond my gas to water pipes on the boiler,im getting a headache thinking about it!
im cross bonding my water and radiator pipes in 4mm earth cable BUT
(1) what size earth cable should be used from the main earth block to the earth terminal in the consumer unit,at the moment there is 6mm cable,but should 10mm or 16mm be used.
ALSO
(2) what size earth cable should be used from from the main earth block to the main incoming water/gas/electric pipes 6mm or 10mm,at the moment this to is run in 6mm.
(3) what factor determines what cable size should be used,does the difference in cable size make any significant changes?
ALSO
(4)do i need to cross bond my gas to water pipes on the boiler,im getting a headache thinking about it!