LFS Cable routing systems - OBO Bettermann

Usable cross-section and quantity of cables
A lot of space for a lot of cables
The mono and the duo ducts are
extremely spacious and offer ample
room for line installation. The
trunking depth of 53 mm and the
compact design of the EGS devices
enable the lines to be installed
either above, below or behind the
switches and sockets. The following
tables list the recommended
maximum filling volumes (50%
filling) of the empty and filled Rapid
45 trunking for standard cable
types.
Calculation formula for cable assignment
in the trunking
To calculate the recommended cable
assignment for trunking, you
require the following data:
• Trunking cross-section: D · H
(in mm)
• Realistic space requirements
of the cables: (2r) 2
• Max. filling factor (recommended):
0.5
This data allows calculation of the
usable cross-section for cable assignment,
as follows:
Usable cross-section for cable assignment
= (trunking cross-section
/ (2r) 2 ) · 0.5
Planning aid, device installation trunking, size 45
06 LFS_Katalog_2010_Neuer_Stand / en / 25/02/2010 (LLExport_00995)
GEK-K 53100
GEK-A 53100
Without device
installation
With device
installation
Trunking cross-section 4,080 mm² 2,596 mm²
NYM
3 x 1.5 mm
d = 10.5 mm
NYM
5 x 1.5 mm
d = 12 mm
Telecommunications
cable
J-Y(St.)Y 2 x 0.6
d = 5 mm
23 15
18 11
104 66
Filling factor:
0.5 = the capacity
reserve is 50%.
GEK-K 53160
GEK-A 53160
NYM
3 x 1.5 mm
d = 10.5 mm
NYM
5 x 1.5 mm
d = 12 mm
Without device installation
Telecommunications
cable
J-Y(St.)Y 2 x 0.6
d = 5 mm
With device
installation
6,480 mm² 3,696 mm²
36 20
28 15
156 96
Filling factor:
0.5 = the capacity
reserve is 50%.
LFS
OBO
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