parapets) such way that they can conduct light-
ning current.
Metal roofs fulfilling the requirement IEC/EN 62305-
3 regarding material strength can used natur-
al air-termination and down-conductor unit.g.
The application standard offers variety options in
this regard. Tested ter-
minals must used create fixed connection able
to carry lightning current.TBS
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Possible method for connecting metal roof parapet bridging with flexible cable
Various bridging and connecting components are
available for connecting metal roof elements (e. contrast, loose conductor
routing must installed secure the temperature-
dependent length compensation.6).
Metal covers protect the exterior wall can used
as natural component the air-termination system,
if melting the impact point the lightning strike is
accepted (Table 2. Depending the product, these can be
fitted the roof element standard- compliant way.
Kalzip®
terminal, able carry lightning current, from
OBO
TBS
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69
Chapter The external lightning protection system
