This is obviously not simple as there is so much discussion about it.
I have looked at the excellent drawing by Plugwash posted in 2004, (before the latest regs) and I am still confused.
Does the switched fused connection unit act as the fan isolator switch? What about the switched live? Should there be ANOTHER isolator switch between the junction box and the fan? If so isn't it enough to have MCBs and RCA on the distribution board and the isolation switch alone?
Is it really necessary to have a double pole pull cord switch? Could I just use a normal light switch (outside the bathroom)? It's only a fan for goodness sake or is this just the regs over-doing the safety?
I'm sure that in new houses I have visited there are not the plethora of switches near the bathroom that the fan manufacturers and building regs seem to require. Am I missing something?
Thanks for any advice.
Jon
I have looked at the excellent drawing by Plugwash posted in 2004, (before the latest regs) and I am still confused.
Does the switched fused connection unit act as the fan isolator switch? What about the switched live? Should there be ANOTHER isolator switch between the junction box and the fan? If so isn't it enough to have MCBs and RCA on the distribution board and the isolation switch alone?
Is it really necessary to have a double pole pull cord switch? Could I just use a normal light switch (outside the bathroom)? It's only a fan for goodness sake or is this just the regs over-doing the safety?
I'm sure that in new houses I have visited there are not the plethora of switches near the bathroom that the fan manufacturers and building regs seem to require. Am I missing something?
Thanks for any advice.
Jon