LEM A 6403 06311 Manual De Instrucciones página 16

Applications
Example 2: Tests on multi-grounded (inter-connected) systems:
Ground conductors are for example bonded to grids or concrete-footing grounds and
other conducting elements such as lightning protection systems or frameworks.
In this case the resistances of individual ground paths are not of significance.
It must be tested if the resistance of the bonding is sufficiently low and reliable.
lightning
protection
16
Footing grounds framework
Adapter for stakeless ground testing
A640311 GA1 Z REV 1