Installation Of Hvi Conductors Integrated In The Supporting Tube (3.2 M Long) In A Tripod - dehn HVI Installation Instructions Manual

7. Installation of HVI Conductors integrated in the supporting tube
(3.2 m long) in a tripod
Isolated supporting tubes with a diameter of 50 mm can be connected via the adapter attached to the
tripod. The adapter allows to adjust supporting tubes up to an angle of 10° to compensate roof inclina-
tions. Depending on the alignment of the inclination angle, the supporting tube (aluminium tube, Ø 50
mm) is inserted into the adapter and tightened via the four M10 locking screws. In addition, the four
hexagon nuts must be tightened to the adapter using the specified tightening torques of 25 Nm (see
Fig. 20, page 34). The supporting tube with tripod (HVI Conductor installed inside the supporting tube
and up to 4 HVI Conductors installed outside the supporting tube) withstands wind speeds up to 142
km/h (wind load zone II) (see page 38).
In order to ensure the minimum bending radius of the HVI Conductor of 200 mm/230 mm, the tripod
must be installed in an elevated position. The following steps must be observed when installing the
tripod:
Wedge the pre-mounted bracing into the lowest concrete base (Fig. 20a).
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Mount the middle concrete base (first drive out the cover) (Fig. 20b).
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Install the tripod (Fig. 20c).
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Wedge the top concrete base (first drive out the cover) (Fig. 20d).
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20 a
20 c
Figure 20
34
bracing
25 Nm
20 b
20 d