Installation; Installing Hvi ® Power Conductors In The Supporting Tube - dehn HVI power Installation Instructions Manual

Lightning protection/earthing

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6. Installation

6.1

Installing HVI

Before installing the supporting tube, insert and fix the head piece of the pre-assembled HVI

Conductor into the supporting tube and fix it (see also page Figure 5., page 20).

The following steps must be observed:

Unscrew the locking screw of the head piece (M8 x 25 mm) at the head of the supporting tube.

Insert the HVI

power Conductor from below into the supporting tube. To this end, the compressive

strength of the integrated EB spring element must be overcome. The conductor can be inserted and

removed several times. To contact the head piece, insert the HVI

porting tube as far as it will go and hold it there.

Firmly tighten the locking screw (M8 x 25 mm) again using a tightening torque of 15 Nm. This en-

sures that the head piece is fixed in the supporting tube and that is electrically connected (capable

of carrying lightning currents). Make sure that there is a sufficient distance (about 7 mm) between

the screw head and the supporting tube after tightening the locking screw. The adhesive coating

of the screw only hardens after about 5 minutes so that the screw can be correctly positioned and

tightened during this period. After hardening of the adhesive coating, the screw must be replaced by

a new one when the screw is removed.

Check whether the HVI

Proper installation can be verified by slightly pulling the conductor at the point where it leaves the

supporting tube.

The relevant air-termination tip or rod must be installed before or after the supporting tube has been

installed depending on the configuration of the installation.

Insert the air-termination tip or rod from above into the head of the supporting tube and tighten the

two locking screws (M8 x 16 mm / M8 x 10 mm) using a tightening torque of 15 Nm.

power Conductors in the supporting tube

power Conductor is properly fixed in the supporting tube (see Fig. 5).

power Conductor into the sup-

power

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Hvi power long