For domestic CU, cable entry must be performed with regard
to 412-03-02 for top most surface (IP4x, 1mm dia sphere) and
412-03-01 for sides/bottom surface (IP2x, 12.5mm dia sphere).
MK specified, but their CU is IP2x rated.
Only the MK 12-way fits the narrow alcove in dedicated cupboard.
DNO has advised they can not move SH/Meter more to the left.
Easement permits CU. I will not fit CU vertical (as previous).
I will not use top-entry with the MK CU.
Meter tails will enter LHS, the smaller cutout approximates
well to twin 25mm leaving partial voids well below 12.5mm.
All circuits will enter the REAR - which presents a problem.
The CU will be mounted to C-shaped varnished ply onto the existing
board. Open part of the C-shape faces the floor, permitting cables to
be pushed up & thro the large rear cutouts into the CU.
The C-shaped opening creates a void behind the CU >12.5mm, but it
is "not easily accessible" & could be closed with UL94V0 foam strip.
Anyone see anything wrong w/ proposed installation re 412-03-01?
Hager provide tacky bits of foam to contribute to IP4x.
Trunking is impractical, loose cables were a right mess in the
cupboard but once tidied have achieved an N=0 Cg separation.
to 412-03-02 for top most surface (IP4x, 1mm dia sphere) and
412-03-01 for sides/bottom surface (IP2x, 12.5mm dia sphere).
MK specified, but their CU is IP2x rated.
Only the MK 12-way fits the narrow alcove in dedicated cupboard.
DNO has advised they can not move SH/Meter more to the left.
Easement permits CU. I will not fit CU vertical (as previous).
I will not use top-entry with the MK CU.
Meter tails will enter LHS, the smaller cutout approximates
well to twin 25mm leaving partial voids well below 12.5mm.
All circuits will enter the REAR - which presents a problem.
The CU will be mounted to C-shaped varnished ply onto the existing
board. Open part of the C-shape faces the floor, permitting cables to
be pushed up & thro the large rear cutouts into the CU.
The C-shaped opening creates a void behind the CU >12.5mm, but it
is "not easily accessible" & could be closed with UL94V0 foam strip.
Anyone see anything wrong w/ proposed installation re 412-03-01?
Hager provide tacky bits of foam to contribute to IP4x.
Trunking is impractical, loose cables were a right mess in the
cupboard but once tidied have achieved an N=0 Cg separation.