3.3 156
Type foundation earth electrodes
2.1 152
Type earth rod structure
2.2 161
Black trough
2.4.4 162
Perimeter insulation
2.6.6 167
Potential control
2.2 172
Materials for earthing systems
2.4.3.4.5 166
OBO Construct planning aids
2.4.4.2.1 150
Basic principles
2.4 159
Versions
2.3.4.4.6.4.3 161
White trough
2.5 165
OBO selection aid for foundation and ring earthers
2.8 173
Testing lightning protection system components
Chapter The external lightning protection system
TBS
Blitzschutz-Leitfaden
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Chapter The external lightning protection system
.1 168
Step voltage
2.4.4.4.7.2 154
Type ring earth electrodes
2.2 150
Normative requirements
2.4.1 160
Earth rods
2.7 169
Materials and corrosion protection
2.7.2 168
Protection against dangerous touch voltage
2.4.1 170
Materials for air-termination and conductor systems
2.3 151
Planning methods
2.4.4.4
