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                                                                    Product range of the HVI  conductor.


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                                                                    The prewired HVI  conductor I is equipped with a head piece  the conductor can be established on site. The components
                                                                    and an earth connection element at delivery. The earth  required for this (connection element with heat-shrinkable
                                                                    connection element is pre-mounted in its delivery condition.  sleeve and equipotential bonding element) are not fixed at
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                                                                    Thus, the length of the HVI  conductor can be adjusted  delivery. This allows for adjusting the length of HVI  conductor
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                                                                    (shortened) on site and the earth connection element can be  III on site. HVI  conductors II and III are used if e.g. several parts
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                                                                    installed. HVI  conductor I is used e.g. when directly connecting  of a plant to be protected are not supposed to be connected
                                                                    the air-termination system to the earth-termination system of  individually but jointly to the earth-termination system of the
                                                                    the structure. An equipotential bonding element is firmly  structure via a separate ring conductor (consideration of the
                                                                    attached at the end of the sealing unit area for the connection  separation distance).
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                                                                    of the HVI  conductor to the equipotential bonding (EB)
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                                                                    structure.                                            The HVI  conductor can also be installed in the insulating pipe
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                                                                    At delivery, the prewired HVI  conductor II is equipped with  at locations with special architectural requirements.
                                                                    two adjusted head pieces the length of which cannot be changed
                                                                    on site.
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                                                                    The prewired HVI  conductor III is equipped with a fixed sealing
                                                                    unit consisting of a head piece and a fixed equipotential bonding
                                                                    element at delivery. An additional sealing unit at the end of
                                                                    Isolated air-termination systems for antennas and                                                                                                           Omnidirectional antennas
                                                                    emitting characteristics / omnidirectional antennas.















                                                                                                       e.g.                                                 e.g.
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                                                                                                       HVI  conductor I                                     HVI  conductor I
                                                                                                       in the insulating pipe                               in the insulating pipe
                                                                                                       Part No. 819 320                                     Part No. 819 360
                                                                                                       L = 3200 mm                                          L = 3200 mm

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                                                                                                      HVI  conductor
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                                                                                                                                                           HVI  conductor
                                                                    Antennas with 360° emitting characteristics (omnidirectional  Units:
                                                                    antennas) are used for different radio applications.   Hz                         m
                                                                    When installing isolated air-termination systems for   Frequency [F]              Wave length [ ]
                                                                    omnidirectional antennas, it has to be considered that an isolated
                                                                    air-termination rod with a sufficient protective angle covers the  100 000        3000
                                                                    antenna to be protected. Furthermore it has to be ensured that  1 000 000         300
                                                                    sufficient separation distance is maintained.
                                                                                                                           10 000 000                 30
                                                                    From a functional point of view, a distance has to be kept  80 x 10 6             3.75
                                                                    between the antenna and the air-termination system, which  100 x 10 6             3
                                                                    corresponds to a quarter of the wave length of the radio      6
                                                                    frequency used. The installation conditions according to  160 x 10                1.875
                                                                    installation instructions No. 1521 have to be observed.  900 x 10 6               0.33
                                                                                                                           1800 x 10 6                0.17
                                                                                                                          Covered by DEHN distance holders for omnidirectional antennas.
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