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Assembling the air-termination rod
WARNING
WARNING
50 | EN
6 6
Attaching the potential connection
If there is a direct lightning strike to the air-termination rod, the incoming
energy is run through the connected isCon
lightning arrestor system. To prevent surface discharge moving away
along the surface, the isCon
tential bonding of the structure in the area of the two connection points.
The potential connection can be made via metallic and earthed roof
structures, via generally earthed parts of the building structure and via the
protective conductor of the low-voltage system.
Risk of function loss!
Metallic chips from the connection area of the conductor could cause a
short circuit between the connection element and potential connection if
there is a lightning strike.
This can disrupt the arresting function of the insulated conductor. Floating
discharges may occur.
After installation, clean the connection area of metallic chips.
Danger of lightning currents entering the building!
If, during a thunderstorm, a lightning strike runs lightning currents into
the building, the coupled currents can destroy devices, cause fires and
endanger lives.
If there is a lightning strike, the equipotential bonding must not carry light-
ning current and must be in the protection angle of the lightning protection
system.
Note!
I f you use the grey isCon
jacket before connecting the potential connection (see "5.1.1 Removing
the grey external jacket (isCon Pro+ 75 GR)" on page 28).
Note!
B efore attaching a potential connection element (e.g. clip), clean the
black, weakly conductive layer or the protective jacket of the isCon® con-
ductor from grease and other impurities to improve the electrical conduc-
tivity, using a cleaning cloth type isCon EPPA 004 (art. no. 5408 060).
6 6 1
Installing the potential connection on an insulated air-termination
rod
Note!
The isCon
equipotential bonding on the internal or external potential connection
element.
With a calculated separation distance of s ≤ 0.75 metres, a distance of
x = 1.5 metres must be maintained between the top connection element
and the following connection for the equipotential bonding (see Fig. 13 on
page 21, No.
this distance through its 1.5 metre-long central rod.
The potential connection on the insulated air-termination rod must be
designed differently for air-termination rods with internal and external
conductor.
Internal isCon
In the case of isFang air-termination rods with an internal isCon
conductor, the potential connection must be connected via the potential
connection element, which is located internally (see also Fig. 35 and
Fig. 38). The potential connection must be brought into contact with
the potential connection element via the bottom screw and also with
the black, weakly conductive layer or the protective jacket of the isCon
conductor.
conductor must be connected to the equipo-
®
conductor, you must remove the grey external
®
conductor of type isCon Basic 45 does not require
®
). The design of the isFang air-termination rod provides
4
conductor
®
conductor to the building's
®
®
OBO Bettermann
®
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