Soil resistivity test Panipat, Haryana , India
Soil resistivity testing is the process of measuring a volume of soil to determine the conductivity of the soil. The resulting soil resistivity is expressed in ohm-meter or ohm-centimeter.
Soil resistivity testing is the single most critical factor in electrical grounding design. This is true when discussing simple electrical design, to dedicated low-resistance grounding systems, or to the far more complex issues involved in Ground Potential Rise Studies (GPR). Good soil models are the basis of all grounding designs and they are developed from accurate soil resistivity testing.
Soil resistivity testing is the process of measuring a volume of soil to determine the conductivity of the soil. The resulting soil resistivity is expressed in ohm-meter or ohm-centimeter.
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| soil resistivity test |
Soil resistivity testing is the single most critical factor in electrical grounding design. This is true when discussing simple electrical design, to dedicated low-resistance grounding systems, or to the far more complex issues involved in Ground Potential Rise Studies (GPR). Good soil models are the basis of all grounding designs and they are developed from accurate soil resistivity testing.
4-point Method is by far the most used test method to measure
the resistivity of soil
Formula- 2πLR
Where, l= distance between spikes in (mtr.)
R=
Resistance measured in (Ω)
Method used- 4 point method
Sr.
|
Resistance (ohm)
|
Location
|
Soil
resistivity (ohm-meter)
|
Remarks
|
1
|
0.25
|
Hospital
|
15.7
|
Average 15 ohm -meter
|
2
|
0.23
|
Susbstation#5
|
14.44
|
|
3
|
0.24
|
Substation#7
|
15.07
|
Standard value of average soil should be
between 10 to 60 Ω-m
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