Page 68 - B8773-AEW-XX-XX-PP-A-0001_[P4]_Contractors Manual
P. 68

D R A F T


       4.2.5 Small Power
       13  amp  switched  socket  outlets,  connection       •  Install electrical supplies to ceiling mounted
       units and isolators shall be supplied and installed       cassette  air  conditioning  system,  signs,
       in accordance  with the requirements  of  the             local  extract  fans  (with/without  overrun
       project.                                                  timers), dedicated outlets for systems etc. as
                                                                 necessary.
       •  All  general  use  13A  sockets  shall  be  white   •  Make  final  connection  to  all  items  of
          moulded plastic outlets to BS 1363.                    equipment unless specified otherwise.
       •  All sockets serving computer and telephone         •  Supplies to fascia signs shall be terminated
          equipment shall  be wired on dedicated                 with 1.5m length of flexible sheathed cable
          circuits  with  a  separate  clean  earth              at  the  centre  of  each  sign  location,  and
          connected to the clean earth bar.                      fed via a time clock. The time clock shall be
       •  ‘Clean’  socket  outlets  shall  normally  have        located in the electrical cupboard in such
          completely red coloured faceplates, as                 a  position  that  it  can  be  easily seen  and
          MEM 3190 and 3195 or similar. EXCEPT, that             adjusted and instructions must be left with it.
          those inside the monitor shrouds on the            •  The  fascia  sign  supply  MUST  be  clearly
          makeline wall ( only) must be BLACK.                   identified,  and  if  necessary  a  draw  wire
       •  The  2no.  13A  S/S/O  for  the  Cooktek  units        should  left  through  the  fascia  for  the  sign
          MUST  be  wired  on  their  own  ring,  back  to       contractors to pull their cable through later.
          the MCB. Under no circumstances may they               It is NOT acceptable to simply  provide a
          share another ring of any kind.                        fused spur internally and leave it to the sign
       •  Supply and install suitably sized single phase         contractors to find a route to it from outside.
          supplies, complete with separate individual        •  A 20A switched fused spur, backed up by a
          control  switches located  in a convenient             Type C MCB (Motor Rated), shall be installed
          position near the oven, to serve extract and           to serve the cold room.
          fresh air supply fans.  Wire from the switches
          to a local isolator adjacent to each fan and
          the final connection to the fan itself.
       (NOTE: Power supplies to PS 200/PS540/PS640WOW ovens   4.2.6 Induction Loop
       will be standard 13A S/S/O. However, supplies to both PS
       555 series and PS 360 series ovens will require a 20A rated   Induction  Loops  to  assist  the  hard  of  hearing
       socket for each oven (Reyrolle type) and in this case,   must be installed in all new stores and all re-fits
       both socket and plug should be supplied by the electrical   from the beginning of 2012. This will normally be
       contractor. Plugs to be wired to ovens, by others.)   fitted to the Disabled section of the counter and
                                                             may be fitted by the site electrician as part of
       •  The  supply to  each oven socket  shall be         his installation. The unit fitted should comply with
          independent so that in the event that one          EN60118-4 (formerly BS6083) and BS7594:2011. A
          circuit breaker trips, power is not lost to both   suitable unit is SigNET ML1/K ( Details in approved
          ovens at the same time.                            suppliers section).





       4.2.5 - 4.2.6               Small Power and Induction Loop                        3 February 2016
   63   64   65   66   67   68   69   70   71   72   73