8
In each case a double pole isolating switch having a contact
separation of at least 3mm in each pole, and a minimum rating of
13amp must be incorporated in the wiring of the appliance.
4.11 To obtain full advantage of the power provided by the handwash, use
the shortest cable route possible from the consumer unit to the
handwash.
4.12 If your consumer unit has a rating below 80A or if there is no spare
fuse way, then the installation will not be straightforward and may
require a new consumer unit. A qualified electrician should install the
new consumer unit. It may be necessary to contact your electrical
supplier to upgrade your supply.
CAUTION
4.13 To enhance electrical safety a 30mA residual current device (RCD)
should be installed in all electric handwash circuits. This may be part
of the consumer unit or a separate unit.
DO NOT
use a rewireable
fuse, instead use a suitably rated miniature circuit breaker (MCB) or
cartridge fuse. The handwash must be connected to its own
independent electrical circuit.
Figure 3 Schematic of typicalelectrical layout
Shower unit
(use rear entry when it is
possible)
800 or 100A main switch
Meter
Meter ‘tails’
Consumer unit
RCD (can be part of the
consumer unit)
Double pole isolating switch:
pull cord or wall mounted in accordance
with IEE regulations
