Main technical parameters and specifications
1.Thickness of the copper layer is more than 0.254mm.
2. The advantages are good tensile strength more than 600N/mm².
3.Our ground rods can be bended through a 30 or 90 or 135 degrees angle, and the rods will be no evidence of cracking or splitting of the steel or the copper cladding.
4.Good in anticorrosion that usage-life is more than 50 years or more, constant low resistance and good plasticity which had the characteristics of copper as well as steel.Earth Rods
Note
1.Diameter standard is 11mm,12.5mm,14.2mm and Φ 17.2mm, the thread size for 1/2″,9/16″5 /8″ and 3 / 4″ and also can make metric standard.
2.We can supply you earth rods with much more thickness of copper layer such as 25 microns,50 microns, 100 microns,127 microns, 254 microns and 330 microns etc.
3.Also, we can supply you earth rod with two ends thread, Un-thread but with one end point.one end thread and the other end point.
4.Length of earth rod as your request.
Formula of calculating for single earth rod:
In the formula:
R:Earthing resistanceof single earth rod(Ω)
p: Eartingresistancerate afterrevised(Ω-m)
L:Length ofearth rod(m)
d:Diameter ofearth rod(m)
Earthing Fittings
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GRL Electric Co., Ltd. is one of the leading companies in the Middle And High End market of low-voltage electric in China