Resistance
7 - 19
Table 1:
Typical resistance of
common soil types
Figure 12:
Measuring the
resistance of a single
ground rod
Soil Type
Soil Resistivity
Moor, marsh, very moist soil
1…50
Ω
m
Loess, clay
20…100
Ω
m
Humus, acre
10…200
Ω
m
Sandy clay
50…500
Ω
m
Glass sand
200…3000
Ω
m
Rock
300…5000
Ω
m
Stony, grassy soil
100…300
Ω
m
Granite, freestone
1500…10000
Ω
m
Substation
ground
ground
rod 1
ground
rod 2
ground
rod 3
ground
rod n
Summary of Contents for CPC 100
Page 12: ...CPC 100 V1 41 x...
Page 28: ...CPC 100 V1 41 1 16...
Page 90: ...CPC 100 V1 41 3 14...
Page 194: ...CPC 100 V1 41 6 30...
Page 250: ...CPC 100 V1 41 8 32 Figure 24 Settings of Amplifier test card for this example use case...
Page 258: ...CPC 100 V1 41 9 4...
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Page 282: ...CPC 100 V1 41 12 10 Figure 9 Saving tests with the CPC Editor...
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Page 372: ...OMICRON Contact Addresses 22...