I think the only new 'rule' is the sentence in 411.3.1.2 which is a long-overdue correction of the long-standing error in 544.1.2.
Unfortunately, the error in 544.1.2 has not been removed.
Anyway - neither of these affects the correct application of main bonding which, like the physics, has not changed.
Namely, that main bonding is applied to extraneous-conductive-parts and not applied to parts which are not e-c-ps..
Hi Geoff
Could you explain the error in 544.1.2.
As far as I can see, services entering any building which have a ground potential, pressumably because they are made of metal) must be bonded to the MET. What is wrong with that?
I think the only new 'rule' is the sentence in 411.3.1.2 which is a long-overdue correction of the long-standing error in 544.1.2.
Unfortunately, the error in 544.1.2 has not been removed.
Anyway - neither of these affects the correct application of main bonding which, like the physics, has not changed.
Namely, that main bonding is applied to extraneous-conductive-parts and not applied to parts which are not e-c-ps..
Hi Geoff
Could you explain the error in 544.1.2.
As far as I can see, services entering any building which have a ground potential, pressumably because they are made of metal) must be bonded to the MET. What is wrong with that?
