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Soil Resistivity
Formula
R
Soil Resistivity
S
Electrode Spacing
V
Voltage at Inner Electrodes
I
Current at Outer Electrodes
Formula description
Soil resistivity is the key factor that determines what the resistance of a grounding electrode will be, and to what depth it must be driven to obtain low ground resistance.
Calculator (
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S
meter
0.001 inch
0.1 foot (international)
0.1 inch
150 kilometers
32nd inch
50 kilometers
64th inch
a.u.of length(a.u.b)
angstrom
barrel per acre
braza (Texas)
centimeter
chain
chain (British chain (Benoit 1895 A))
chain (British chain (Benoit 1895 B)
chain (British chain (Sears 1922 truncated))
chain (British chain (Sears 1922))
chain (Clarke chain)
chain (Gunter's chain, Surveyor's chain)
chain (Ramsden chain, Engineer's chain)
chain (US survey chain)
cubic meter per square meter
cuerda
decimeter
dra (Russia)
Earth's distance from sun
Earth's equatorial radius
el (Dutch)
elle (Vienna)
estadio (Spain)
fathom
femtometer
foot (American modified)
foot (Beno?t)
foot (British foot (1865))
foot (British foot (1936))
foot (British foot (Benoit 1895 A))
foot (British foot (Benoit 1895 B))
foot (British foot (Sears 1922 truncated))
foot (British foot (Sears 1922))
foot (Clarke's; Cape) (H)
foot (France)
foot (Gold Coast foot)
foot (Indian foot (1937))
foot (Indian foot (1962))
foot (Indian foot (1975))
foot (Indian foot)
foot (International)
foot (royal foot)
foot (Scots foot)
foot (Sears)
foot (U.S. survey)
gallon per hundred square feet
gigameter
hectometer
inch (International)
inch (U.S. survey)
kilometer
light year (tropical)
light-day
light-hour
light-minute
light-second
link
link (British link (Benoit 1895 A))
link (British link (Benoit 1895 B))
link (British link (Sears 1922 truncated))
link (British link (Sears 1922))
link (Clarke link)
link (Gunter's; Surveyor's)
link (Ramsden's; Engineer's)
link (US survey link)
marathon
megameter
meter (German legal meter)
micrometer
micromicron
micron
mile (Britain, ancient)
mile (geographical)?
mile (international)
mile (Irish)
mile (nautical mile, Admiralty)
mile (nautical, international)
mile (nautical, UK nautical mile)
mile (nautical, US)
mile (Roman, ancient)
mile (Scottish)
mile (statute)
mile (tactical or data)
mile (telegraph)
mile (U.S. Survey)
millimeter
millimicron
million cubic feet per acre
nanometer
nanon
petameter
picometer
Planck length
point (Adobe)
point (Britain, US)
point (Didot; European)
point (PostScript)?
point (TeX)?
point?(American, English)
rod (international)
rod (US Survey)
tenth inch
terameter
yard (British yard (Benoit 1895 A))
yard (British yard (Benoit 1895 B))
yard (British yard (Sears 1922 truncated))
yard (British yard (Sears 1922))
yard (Clarke yard)
yard (Indian yard (1937))
yard (Indian yard (1962))
yard (Indian yard (1975))
yard (Indian yard)
yard (International)
yard (US Survey yard)
yoctometer
yottameter
zeptometer
zettameter
V
volt
abvolt (cgs unit)
EMU of electric potential
ESU of electric potential
kilovolt
megavolt
microvolt
millivolt
statvolt (cgs unit)
watt/ampere
I
ampere
abampere
biot
centiampere
coulomb per second
deciampere
dekaampere
electromagnetic unit of current
electrostatic unit of current
esu/second
franklin/second
gaussian electric current
gigaampere
gilbert
hectoampere
kiloampere
megampere
microampere
milliampere
nanoampere
picoampere
siemens volt
statampere
teraampere
volt/ohm
watt/volt
weber/henry
R
ohm meter
Precision
0
1
2
3
4
5
6
7
8
9
Formula code
C
Java
JavaScript
LaTeX
#define PI 3.14159 R = 2*PI*S*V/I
R = 2*Math.PI*S*V/I
R = 2*Math.PI*S*V/I
R = \frac{2 \pi S V}{I}
References
Wikipedia:Soil Resistivity.
Comment or add more code
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