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Tel
01424 856600
Fax
01424 856611
Technical Hotline
+44 (0) 1424 856688
262 |
Aluminium perimeter trunking systems
Technical information
Material
Aluminium trunking is manufactured
from high precision extruded
aluminium with a powder coat finish.
White RAL 9016
Silver Grey RAL 9006
Installation
Positioning
Elegance can be installed at dado level
or as a bench-mounted installation.
Fitting
• Secure trunking base every 750mm.
• Secure using No 8 round head screws
and washers using the grooves in the
outer compartments of the base to
facilitate drilling Ø6mm holes.
• Avoid over-tightening to permit
thermal movement.
• The use of plastic caps over screw
heads is recommended to protect
installed cables.
• To cut the trunking, use a fine tooth
blade (32/36tpi) or, preferably, a
circular saw with a 350mm diameter
fine tungsten blade (90/108tpi). This
will produce an edge requiring
minimal de-burring.
• Consecutive lengths of base are
aligned and butt jointed together.
Earthing
• Base, covers and metallic fittings to
be cleaned of protective and powder
coatings and earth bonded.
• Incoming earth connection is made
using LTB1 bonding assembly
installed in the earth channel of the
base.
• Bonding base to base: in final ring or
radial 32Amp circuits, bonding strap
LBS1 can be used.
• Bonding covers and end caps to
base: use bonding strap LBS2.
Single lengths
Where it is required to fit a single
length of trunking (under 3 metres)
between two inside walls and no
accessory box is fitted, it is advisable to
install a coupler in the centre of the run
to facilitate the removal of the cover.
Joints and bends
• Straight lengths should be butt
jointed together.
• Internal bends, external bends, flat
angles and tees are prefabricated in
aluminium and butt jointed together
so cutting of base and covers has to
be very accurate to produce a good
finish.
Bend radius control
Contact the Technical Team on 01424
856688
Accessory boxes
• For boxes mounted in alternative
compartment to supply, drill main
web adjacent to box position.
• Remove appropriate knockout and
clip box into trunking base.
• For boxes in same compartment as
supply, remove appropriate knockout
and clip box into trunking base.
• When boxes are installed
consecutively, a 14mm wide length
of cover is required to cover the
space between the boxes.
• Part M box assemblies with
contrasting coloured faceplates are
available to meet the requirements of
DDA regulations for Visual
Impairment.
Covers
Covers are designed to limit
unauthorised removal and to remain in
position during normal conditions
irrespective of impact and minor
undulations of the mounting surface.
Covers – fitting
Covers are clipped into place from
front. If accessory boxes are installed,
the LTL1 cover is butt-joined to the
edge of the box (ESSB1/2 only). Cut
edges of the cover are concealed by
the accessory. For fittings, a gap of
4mm is left between the two cover
ends to permit the fitting to clip to
base.
Covers – removal
To remove a cover, first detach an
accessory to gain access. The main
cover can then be gently eased off the
base.
Screening
Aluminium containment will protect all
internal circuits from external
electromagnetic interference. For
internal segregation and screening, use
a screened dividing fillet.
Offset dimensions
The minimum set that can be
accommodated in the same plane
(from internal to external bend), is
145mm.
Dimensions
Elegance Aluminium
Compartment 1 (total area) = 5254mm² (with box)
Cable capacities
• All calculations allow for a 45% space
factor.
As there can be differences between
data cable sizes, Marshall-Tufflex
recommend that cable dimensions are
confirmedwith themanufacturing
company.
Cable capacity chart
Compartment 1
No box With box
PVC power cable
1.5mm² stranded copper
274
–
PVC power cable
2.5mm² stranded copper
187
–
PVC power cable
4.0mm² stranded copper
142
–
Data cable: Ø5.5mm
78
–
Data cable: Ø6.0mm
65
–
Data cable: Ø6.5mm
56
–
A
110
107
55
52
1
Elegance Aluminium
