An evaluation the transition resistances and release
torques the screw connections according IEC
62561-1 can only carried out after the high-voltage
test. After static, mechanical load with 900 Nm, as
shown the "Testing structure the static mechanic-
al load", the insulated conductor connected with an
air-insulated comparative spark gap impulse
voltage 1.
Testing structure the static mechanical load
An example the test structure shown, along with
a registered load with disruptive breakthrough the
comparative spark gap adjusted equivalent sep-
aration distance (se) cm.2/50.
2.Structure insulated conductor test the lightning
current carrying capacity, e. this arcs and not
the high-voltage-resistant, insulated conductor paral-
lel, equivalent separation distance (se) cm
can proven for this conductor type.
Further type tests are described IEC 62561-8
[Meppelink] and contain the following points:
• Documentation
• Labelling
• Construction
• Ultraviolet light
• Tension and bend test
• Corrosion
• Impact test
• Electrical testing with impulse current
• Electrical testing with impulse voltage
TBS
Blitzschutz-Leitfaden
2018
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Chapter The external lightning protection system
.2.
Through three impulse voltage loads for each sample,
it must proven that the comparative spark gap
flashes over and disruptive breakthrough arcing
occurs the insulated conductor.g.6 Type tests for insulated conductors
The recently published technical specification IEC TS
62561-8 specifies the requirements and type tests for
insulated down conductors [Meppelink]. This proves the
equivalent separation distance (se). Before this type test, three
samples tested are subjected impulse cur-
rent test with the indicated rated current, e.13. The distance the comparative
spark gap adjusted the distance the indicated
separation distance using correction factor specified
in the standard.g. The key test
is the proof the equivalent separation distance (se)
of the insulated conductor. with 200 kA
Testing structure during impulse voltage test with an
equivalent separation distance (se
) cm. 200 kA
