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COMMERCIAL & INDUSTRIAL TRUNKING
12
COMMERCIAL AND INDUSTRIAL TRUNKING INSTALLATION PLANNING
1.
Allow for one coupler (IC) for every 3m length.
2.
Allow for two couplers (IC) for every elbow and bend (EEI, EEO and FE)
3.
Allow for three couplers (IC) for every tee (ETI, ETO and FT).
4.
The nominal inside leg dimensions of all fittings is 75mm.
Allowance for fittings should be trunking width plus 75mm
(e.g. TC5 – 100 x 50mm plus FE5 Flat Elbow 100 + 75mm =
175mm).
Eg: FE5
5.
Lid sections supplied with fittings are mitre guides. Full-length lid
should be mitred to suit fitting and over-run joint between
trunking and fitting.
6.
Fittings for use with divided trunking are plain interior type
(e.g. FE5) and must be divided when installed.
For divider, use GA2545 for 50mm deep trunking and GA3838
for 38mm deep trunking.
7.
Internal Couplers (IC) should be solvent welded to the trunking
body. If expansion or contraction of the trunking is possible, the
coupler should only be welded to one trunking body and be
allowed to slide in the adjacent section as a fishplate.
8.
When solvent welding couplers etc., the area to be welded
should be cleaned of all impurities to ensure complete welding.
Use a liquid cleaner or alternatively clean mating surfaces with
fine emery paper or a smooth file.
9.
After installation, clean the trunking with a detergent-based cleaner.
DADO TRUNKING
TC 5 100 x 50mm trunking can be utilised to produce a simple Dado Trunking. Used
in conjunction with self-adhesive PVCu Angles, Plain Interior Fittings and Shrouded
Mounting Boxes (see page 13), a complete system may be achieved.
COMMERCIAL & INDUSTRIAL TRUNKING
TC1 WHI
75 x 38mm
12m (4x3m)
White
TC3 WHI
75 x 75mm
12m (4x3m)
White
TC4 WHI†
100 x 100mm
6m (2x3m)
White
TC5 WHI
100 x 50mm
12m (4x3m)
White
TC11 WHI
75 x 50mm
12m (4x3m)
White
TC50 WHI
50 x 50mm
12m (4x3m)
White
Gilflex Commercial Trunking is made from from high-impact PVCu and is designed to cope with
the rigours of the factory and office.
A complete range of sizes and fittings is available as well as divided sections to
provide service segregation
Accessory plates enable standard sockets to be fitted into TC5
Ref. No.
Size
Standard Pack Colour
† TC4 (100 x 100mm) should only be used as a feeder trunking. Accessories
MUST NOT BE USED with this trunking.
CABLE CAPACITIES
To conform to the requirements of IEE Regulations, power cables must not occupy
more than 45% of the area available within a trunking section.
Order Ref. No.
Trunking Size mm 45% Space factor mm
2
TC1
75 x 38 1097
TC3
75 x 75 2256
TC4
100 x 100 4113
TC5
100 x 50 1930
TC11
75 x 50 1375
TC50
50 x 50 917
Type of
Conductor cross
Factor
Conductor
sectional area mm
2
Solid
1.5
8
2.5
11.9
Stranded
1.5
8.6
2.5
12.6
4.0
16.6
6.0
21.2
10.0
35.3
50
100
TC5
DIVIDABLE WITH GASA2545
For single-core PVC insulated cables in trunking.
For each cable to be used,obtain the cable factors from the table. Add all factors together
and compare to the capacities given.
Any trunking with a space factor equal or larger than that of the cable factors will
satisfactorily accommodate the cables.
175mm
75mm
Plan view of flat elbow showing
lid and base mitre. Dotted lines
indicate end of base section
with overlapping lid