Long lengths of eritech, Ericore downconductor – ERICO 3000 ERITECH SYSTEM User Manual
Page 51
INSTALLATION, OPERATION AND MAINTENANCE MANUAL
49
www.erico.com
Long Lengths of ERITECH
®
ERICORE
Downconductor
Most installations can be conducted with a
single ERITECH
®
ERICORE downconductor
cable as described earlier in this manual.
However, where the installation involves
a long single length of ERITECH
®
ERICORE
cable, additional measures may need to be
taken to help ensure that the voltage build
up on the cable during a lightning strike
will not be excessive.
Before considering these measures, it
needs to be determined if the cable is
too long to run in a single uninterrupted
length. The flowchart in Figure 33 allows
this to be determined. Starting with the
proposed ERITECH
®
ERICORE length as
indicated in the LPSD design, follow the
chart to the appropriate outcome. If a sin-
gle length of ERITECH ERICORE is accept-
able, no further consideration is required.
Proposed ERITECH
®
ERICORE length
Determine the thunderday level at
the proposed installation site.
Figure 33: Determination of maximum single ERITECH ERICORE length.
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