supplementary bonding in a bathroom

[whonickedmybike?]

Hi all, new here so please go easy.
Can someone clear up a badly written rule book which is open to interpretation?
Suppose there is only 1 circuit in a bathroom, ie lighting with a fan. If everything is outside the zones, fair enough, no bonding required. If the light (or the fan) was in zone 3, would the circuit have to be bonded?
I'm confused........the nic bloke says not, but the regs say something like 'each circuit within zones 1 , 2 and 3.........???

 

[Mighty Quinn]

Hi all, new here so please go easy.
Can someone clear up a badly written rule book which is open to interpretation?
Suppose there is only 1 circuit in a bathroom, ie lighting with a fan. If everything is outside the zones, fair enough, no bonding required. If the light (or the fan) was in zone 3, would the circuit have to be bonded?
I'm confused........the nic bloke says not, but the regs say something like 'each circuit within zones 1 , 2 and 3.........???

The lighting circuit and any pipes in the bathroom should be cross-bonded, regardless of which zone they are in.

"Regulation 601-04-01 requires that the protective
conductor terminals of each circuit supplying Class I and
Class II electrical equipment in zones 1, 2 or 3, and
extraneous-conductive-parts in these zones, are all
connected together by local supplementary equipotential
bonding conductors complying with Regulation Group
547-03. This is to prevent the occurrence of voltages
between any such parts of such magnitude as could cause
danger of electric shock."

 

[bathjobby]

This is a nice read too;
http://www.iee.org/Publish/WireRegs...tumn_wiring_matters_section_601_revisited.pdf

 

[whonickedmybike?]

Thanks guys. Just what i've always done anyhow, just to cover my arse. The nic bloke threw me a bit.