PEWA UNITEST TELARIS ERDE Mode D'emploi page 23

Table 6.3.1:
References to evaluate measurement results (in compliance with DIN VDE 0413 Part 7)
State of the
ground
marshy soil/swamp
arable land/clay
humid sandy soil
dry sandy soil
stony soil
concrete1:5
required max. permissable resistance
0,3 Ω
0,4 Ω
0,5 Ω
0,6 Ω
0,7 Ω
0,8 Ω
0,9 Ω
1,0 Ω
2,0 Ω
3,0 Ω
4,0 Ω
5,0 Ω
For a required earth resistance as shown in Table 6.3.1, the measured value must not
exeed the values in the table below taking into account instrument error.
earth resistance
bar ground connection
3m deep 5m deep
10Ω 5Ω
33Ω 17Ω
66Ω 33Ω
330Ω 165Ω
1000Ω 500Ω
maximum displayed test value
0,18 Ω
0,28 Ω
0.37 Ω
0,46 Ω
0,56 Ω
0,65 Ω
0,75 Ω
0,84 Ω
1,85 Ω
2,79 Ω
3,73 Ω
4,67 Ω
earth resistance
flat ground connection
5m long 10m long
12Ω 6Ω
40Ω 20Ω
80Ω 40Ω
400Ω 200Ω
1200Ω 60Ω
160Ω 80Ω
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