Bonding RSJ question.

[fatboyslim]

Thanks for all the advice guys. Much appreciated

 

[narkedatninety]

Is the metal container itself not an extraneous conductive part ?

Very unlikey to introduce an outside potential into the system.

 

[narkedatninety]

But if the metalwork is not bonded to the CPC system they risk being at differing potentials, say should the CPC be on a faulted-PEN segment of the supply network.

So while all structural metal work might be at the same potential, any class I equipment may be at another. So bonding is still needed.

Not neccessarily. Bonding it may mean you are actually introducing a fault-path. We test to ascertain whether it is extraneous and whether it is likely to introduce an outside potential into the system. If the test proves otherwise, we do not bond.