On 06/09/2011 22:25, John Rumm wrote:
On 06/09/2011 18:01, charles wrote:

when I installed a power shower some years ago, the supply to the
unit was low voltage fed from a transformer. Does Part P then
apply?

Probably depends on where the mains side of it was located.

For domestic installations Part P always applies (i.e the wiring must be
safe), whether or not the work is notifiable. ELV circuits only get an
exemption if they're for telecoms or control etc., rather than for power
or lighting. An ELV circuit to power a shower pump should be notified
(strictly...).

--
Andy