As steel girders may usually not drilled through,
the only other option fastening with construction
clamps.g.
Construction clamp, type 5010, able carry lightning
current
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Chapter The external lightning protection system
.2.
At first, fastening support systems steel girders
seems barely possible.7 Fastening steel structures
In industrial construction, steel constructions are fre-
quently used for the building structures.2. However, the supporting
steel elements the building are unprotected, other
technical equipment, e. steel girders are used natural con-
ductor, they are connected the earthing
system, then construction clamps able carry light-
ning current must used. Thus, unprotected
steel does not possess fire resistance, meaning that
special measures are necessary, such treatment
with fire protection coatings lining with non-com-
bustible plates. smoke extraction auto-
matic extinguishing systems, can compensate for the
bad properties the steel case fire limiting
the critical temperatures.
However, approx. 500 °C, steel loses half its res-
istance, that, there fire, the building struc-
tures are exposed high risk. Steel girders
and supports can also found power stations
