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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.

Need technical support or a quote, we’re here to assist.

Detaljer Programbilder Ressurser Video

Detaljer

Funksjoner

Maintains constant resistance for the life of the system once in its set form
Performs in all soil conditions even during dry spells
Does not require periodic charging treatments or placement
Does not require the continuous presence of water to maintain its conductivity
Fully sets within 3 days, fully cures within 28 days
Does not dissolve, decompose, or leach out with time
Non-corrosive
Reduces vandalism and theft since conductors are hard to remove from concrete
Easy-to-handle 25 lb (11.3kg) bags or buckets
Requires only one person to install
Exceeds IEC® 62561-7 which sets the benchmark for corrosion, leaching, sulfur content, and other environmental regulations
Complies to the U.S. Environmental Protection Agency (EPA) Toxicity Characteristic Leaching Procedure (TCLP), EPA test method 1311
Can be installed using trench or ground rod backfill methods

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Spesifikasjoner

Vekt på enhet	11.360 kg
Vekt på enhet	25 lb

Data kopiert

Beregnet Lineær Fot av Jordleder Som Dekker med hver Pose av GEM
Grøftbredde	Total Tykkelse av GEM
Grøftbredde	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

Foreslåtte Spesifikasjoner
Parameter	Anbefalte Verdier	testmetode
standardsamsvar		Fullt samsvar med IEC 62561-7 EPA Giftighet Karakteristisk utvasking Prosedyre (TCLP), testmetode 1311
Utvasking	Arsen < 1.5 mg/L, Barium < 60 mg/L, Kadmium < 0.15 mg/L, Krom < 3.0 mg/L, Bly < 1.5 mg/L, Kvikksølv < 0.06 mg/L, Elen < 1.0 mg/L	EC 62561-7 EN 12457-2
Svovelinnhold	< 2%	ISO 14869-1
Resistivitet	<2 Ω-cm for pulver <20 Ω-cm for blandet og herdet material	Komprimert pulver i henhold til ASTM G187-12 Blandet og herdet per ASTM D991-89
Korrosjonsytelse	For kobberbelagte jordelektroder, skal polariseringsmotstanden være > 8 Ω x m2 for aggressive miljøer For galvaniserte jordelektroder, skal polariseringsmotstanden være > 7.6Ω x m2 for aggressive miljøer	IEC 62561-7, Sek 5.5, aggressivt miljø
Fleksibilitetsstyrke	300-450 psi [2070-3100 kPa]	ASTM C293
Trykkfasthet	100-200 psi [690-1390 kPa] etter 672 timers herdetid	ASTM C109

Estimerte poser av GEM for å gjenfylle rundt jordstenger til en tetthet på 63,5 lb/ft ³ (1,017 kg/m³)
Hulldiameter		ft	m	ft	m	ft	m	ft	m	ft	m	ft	m
Tommer	Centimeter	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