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