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GEM Ground Enhancement Material

Ground Enhancement Material (GEM) is a superior conductive material that solves your toughest grounding problems. It is the ideal material to use in areas of poor conductivity, such as rocky ground, mountain tops and sandy soil. GEM dramatically reduces earth resistance and impedance measurements. Furthermore, GEM may reduce the size of the grounding system where conventional methods are unsatisfactory. Once installed, GEM is maintenance-free, not requiring periodic charging or the presence of water to maintain its conductivity.

Third-party testing has been completed to verify that GEM conforms to IEC® 62561-7. This standard introduces a benchmark for electrical performance and corrosion of earth enhancement materials that has been absent from the industry to date.

nVent ERICO offers GEM Calculator software that provides resistivity values for common GEM applications and can help estimate the amount of GEM required for an installation. It operates in four languages - English, Spanish, French and German - and performs calculations in Imperial or Metric units. The GEM Calculator is available for download on our website at erico.com.

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Podrobnosti

Vlastnosti

Specifikace

Unit Weight 25 lb
Data Copied
Metrické   |   Imperiální
Estimated Linear Feet of Ground Conductor Covering with Each Bag of GEM
Trench Width Total Thickness of GEM
10.2 cm 12.7 cm 15.2 cm
10 cm 1.0 m 0.8 m 0.7 m
15.2 cm 0.7 m 0.5 m 0.4 m
20.3 cm 0.5 m 0.4 m 0.3 m
25.4 cm 0.4 m' 0.3 m 0.3 m
30.5 cm 0.3 m 0.3 m 0.2 m
Suggested Specifications
Parameter Recommended Values Test Method
Standards Compliance Full compliance to  IEC 62561-7 EPA Toxicity  Characteristic Leaching  Procedure (TCLP),  test method 1311
Leaching Arsenic < 1.5 mg/L, Barium < 60 mg/L,  Cadmium < 0.15 mg/L, Chromium < 3.0 mg/L,  Lead < 1.5 mg/L, Mercury < 0.06 mg/L,  Selenium < 1.0 mg/L EC 62561-7 EN 12457-2
Sulfur Content < 2% ISO 14869-1
Resistivity <2 Ω-cm for powder <20 Ω-cm for mixed and cured material Compressed powder  according to ASTM G187-12 Mixed and cured per  ASTM D991-89
Corrosion Performance For copper-plated earth electrodes,  the polarization resistance shall be > 8 Ω x m2 for aggressive environments For galvanized earth electrodes,  the polarization resistance shall be > 7.6Ω x m2 for aggressive environments IEC 62561-7, Sec 5.5,  aggressive environment
Flexural Strength 300-450 psi [2070-3100 kPa] ASTM C293
Compressive Strength 100-200 psi [690-1390 kPa]  after 672 hours curing time ASTM C109
Estimated Bags of GEM for Backfilling Around Ground Rods to a Density of 63.5 lb/ft ³ (1,017 kg/m³)
Diameter of Hole ft m ft m ft m ft m ft m ft m
Inches Centimeters 5 1.5 6 1.8 8 2.4 10 3 15 4.6 20 6.1
4 10.2 2 2 2 3 4 5
6 15.2 3 3 4 5 8 10
8 20.3 5 6 8 9 14 18
10 25.4 7 9 12 14 21 28
12 30.5 10 12 16 20 30 40
Obrázky aplikací Prostředky
Video
How to Install: nVent ERICO Ground Enhancement Material (GEM)

Play

nVent ERICO GEM vs. Competitive Ground Enhancement Materials

Play

Upozornění
Produkty nVent musí být instalovány a používány pouze tak, jak je uvedeno v instrukčních listech a materiálech pro školení nVent. Instrukční listy jsou k dispozici na www.nvent.com a od vašeho zástupce zákaznického servisu nVent. Nesprávná instalace, zneužití, nesprávné použití nebo jiný nedostatek úplného dodržování pokynů a varování nVent může způsobit selhání produktu, poškození majetku, vážné zranění osob a smrt a/nebo zrušit vaši záruku.
Need technical support or a quote? We're here to help.
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