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mkelectric.co.uk
682
FLOOR SYSTEMS
RAISED
Cablelink Plus
Single Pan Technical
DIMENSIONS (mm)
CRB100
CRB265
CRB340
A
130
287
287
B
222
287
362
C*
115
275
275
D*
206
272
350
* General tolerance = +1.5mm.
The table below shows the sizes required for the carpet lid infill for
the Cablelink Plus Single Pan Floorboxes.
DIMENSIONS (mm)
CRB100 CRB265
X Y X Y
Carpet Infill
93 152 251 219
Knockouts
1 compartment box is supplied with 20 and 25mm knockouts.
3 and 4 compartment box is supplied with 2 x 20mm, 1 x 25mm,
1 x 32mm knockouts respectively, per compartment.
Dual Earth Sockets and High integrity Earthing
†
Modern offices, schools, universities, laboratories etc, are heavy
users of IT, computing and electronic equipment. As most of this
equipment is fitted with a filter mechanism to protect data and data
transmission against RFI and power surges, small earth leakages
emanating from this equipment introduces a current onto the
Circuit Protective Conductor (CPC) effectively turning this into a
functional earth.
Should the CPC be broken, any equipment downstream of the
break is no longer connected to earth. If a fault now occurs in this
equipment, the CPC could rise to the mains potential and the fault
transferred to other equipment on the circuit. The implicit risks to
equipment, data and most importantly users in this situation are
dealt with in the 17th Edition of the IET Wiring Regulations, and
have led MK Electric to introduce Dual Earth Sockets.
Dual Earth Sockets allow the designer and installer to maintain the
earth integrity of the system, in accordance with the 17th Edition of
the IET Wiring Regulations is intended to maintain at all times the
CPC to ensure safety.
Clean Earth Sockets
Clean Earth Sockets allow the designer & installer to introduce
a protective conductor connecting sensitive equipment i.e. a
computer, directly to the main earth.
This reduces the possibility of ‘noise’ occurring on the protective
conductor through induced voltages from other equipment, and hence
can have benefits in maintaining data and data transmission integrity.
Floorbox: Tile and Frame and Floor Tile
Cut-Out Dimensions
1
Wiring Space. Please see table below for dimensions.
2
This dimension assumes a floor covering thickness of 8.0mm.
A thinner covering will reduce this dimension accordingly.
Plug Top Clearances
DIMENSIONS (mm)
70mm BOX
95mm BOX
1
Wiring Space
35
45
2
Plug Top Clearance
31
46
X
A
Y
B
8.0
8.0
70.0
THIS HEIGHT CAN BE ADJUSTED ON SITE TO 25.0 OR 45.0 IF REQUI
1
2 THIS DIMENSION ASSUMES A FLOOR COVERING THICKNESS OF 8.
A THINNER COVERING WILL REDUCE THIS DIMENSION ACCORDIN
95.0
C
D
X
A
Y
B
8.0
8.0
70.0
THIS HEIGHT CAN BE ADJUSTED ON SITE TO 25.0 OR 45.0 IF REQUIRED.
1
2 THIS DIMENSION ASSUME A FLOOR COVERING THI KN SS OF 8.0mm.
A THINNER COVERI G WILL R DUCE THIS DIMENSION ACCORDINGLY.
95.0
C
D
70mm BOX
95mm BOX
1
1
2
2
†
In the 17th Edition of the IET Wiring Regulations, these requirements
are found in Regulation 543.7.
Plate Dimensions (mm)
178
BLANK CXP30201
BLANK CXPC30201
157
77
77
X
A
Y
B
8.0
70.0
THIS HEIGHT CAN BE ADJUST
1
2 THIS DIMENSION ASSUMES
A THINNER COVERING WILL
C
D
A
B
Y
X
Cablelink Plus Single Pan