e.
To ensure contact with the earth, water-impermeable
concrete must not used. The founda-
tion earther can implemented the concrete.Insulated floor plate (perimeter insulation, shown here blue)
2. Connection
lugs must routed into the building such way
that they are resistant pressurised water above
the maximum groundwater level.
Because the foundation earther longer has contact
with the earth here, additional grid ring earther
must created.
If the perimeter insulation only the surrounding
walls, earther contact often still intact. functional equipotential bonding
cable must created the foundation.4. all surrounding walls, strip
foundations and the bottom the foundation, the
function the foundation earther longer fulfilled.
If the exterior walls and the foundation plate are sur-
rounded with perimeter insulation, the earther the
floor plate still has some earthing effect the strip
foundation open the bottom. often consists polyurethane
foam sheets crushed glass.4 Perimeter insulation
Perimeter insulation heat insulation, which sur-
rounds the area the structure contact with the
earth from outside.
If the building structure surrounded all sides by
perimeter insulation, i.
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Chapter The external lightning protection system
.4
