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Installing the isCon® system
7 8
WARNING
WARNING
Note!
Note!
7 8 1
Note!
48 | DE
Attaching the potential connection
If there is a direct lightning strike to the air-termination rod, the incom-
ing energy is run through the connected isCon
ing's lightning conductor system. To prevent surface discharge moving
away along the surface, the isCon
equipotential 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 dis-
charges 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 build-
ing, the coupled currents can destroy devices, cause fires and endanger lives.
If there is a lightning strike, the equipotential bonding must not carry lightning
current and must be in the protection angle of the lightning protection system.
W hen using the grey isCon
must be removed before connecting the potential connection (see "7.1.2
Stripping the grey external jacket (isCon Pro+ 75 GR)" on page 30).
B efore attaching a potential connection element (e.g. clip), clean the
black, weakly conductive layer or the protective jacket of the isCon
conductor from grease and other impurities to improve the electrical con-
ductivity, e.g. using a cleaning cloth type isCon EPPA 004 (Art. No. 5408
060).
Installing the potential connection on an insulated air-termination
rod
The isCon
conductor of type isCon Basic 45 does not require equi-
®
potential bonding on the internal or external potential connection ele-
ment.
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. 14
on page 23, No.
). The design of the isFang air-termination rod pro-
4
vides 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.
conductor to the build-
®
conductor must be connected to the
®
conductor, the light grey external jacket
®
®
OBO Bettermann
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