• However, earthing resistance usually still suffi-
cient.
Because the foundation earther longer has contact
with the earth here, additional grid ring earther
must created.
Studded plastic strips
• Made special, high-density polyethylene. the in-
dividual membranes overlap, the earth contact of
the foundation earther impaired. this case
the earth contact the foundation earther no
longer intact.Example: studded plastic strips
Influence plastic films the earthing resistance
Generally there negative influence between the
strip foundation foundation plate and the earth in
this area. The foundation earther effective an
earther the strip foundation the foundation
plate.
"Simple" films:
• With simple films, the foundation earther effect is
limited.
• Further studded strips the exterior walls produce
a very strong electrical insulating effect.
TBS
Blitzschutz-Leitfaden
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Chapter The external lightning protection system
