SPGS Earth Plus® Conductive Concrete
SPGS Earth Plus® conductive concrete will provide the low resistance ground that is essential to facility earth grounding system. Low earth ground resistance is now possible even where soil resistivity is high. SPGS Earth Plus® conductive concrete is economical, environmentally safe, and permanent.
Earth Plus® conductive concrete conforms to IEC Standard 62561-7 Lightning protection system components (LPSC) - Part 7: Requirements for earthing enhancing compounds. Part 7 specifies the requirements and tests required for earthing enhancing compounds producing low resistance of an earth termination system.
Earth Plus® conductive concrete has a resistance value around 20 Ohms per centimeter (cm). See chart below for typical soil resistivities.
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Soil Resistivities (Approximate Ohm-Meters) |
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Description |
Median |
Minimum |
Maximum |
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Topsoil, Loam |
26 |
1 |
50 |
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Inorganic clays of high plasticity |
33 |
10 |
55 |
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Fills-ashes, cinders, brine wastes |
38 |
6 |
70 |
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Gravelly clays, sandy clays, silty clays, lean clays |
43 |
25 |
60 |
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Slates, shales |
55 |
10 |
100 |
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Silty or clayey fine sands with slight plasticity |
55 |
30 |
80 |
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Clayey sands, poorly graded sand-clay mixtures |
125 |
50 |
200 |
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Fine sandy or silty clays, silty clays, lean clays |
190 |
80 |
300 |
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Decomposed gneisses |
275 |
50 |
500 |
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Silty sands, poorly graded sand-silt mixture |
300 |
100 |
500 |
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Clayey gravel, poorly graded gravel, sand-clay mixtures |
300 |
200 |
400 |
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Well graded gravel, gravel-sand mixtures |
800 |
600 |
1,000 |
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Granites, basalts, etc. |
1,000 |
---- |
--- |
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Sandstone |
1,010 |
20 |
2,000 |
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Poorly graded gravel, gravel-sand mixtures |
1,750 |
1,000 |
2,500 |
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Gravel, sand, stones, little clay or loam |
2,585 |
590 |
4,580 |
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Surface limestone |
5.050 |
100 |
10,000 |
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Note 1: Low resistivity soils are highly influenced by the presence of moisture |
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Note 2: Low resistivity soils are more corrosive than high resistivity soils |
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Some Applications
- Cellular Tower Facilities
- Education Facilities
- Electric Power Substations
- Electrical Substations
- Electric Transmission Towers
- Data Centers Facilities
- Health Care Facilities
- Industrial Facilities
- Manufacturing Facilities
- Microwave Tower Facilities
- Solar Farm Facilities
- Telecommunication Main Facilities
- Telecommunication Remote Facilities
- Wind Farm Facilities
Safety Protection Grid Solutions
P.O. Box 1366
Mansfield, OH 44901
(855) 887-8463
