Approved by UL-467,CE B-S10030250.Widely export to America, Europe and Africa
GRD copper bonded ground rods meet all the requirements of the world’s most rigorous standard such as UL-467,ANSI C-33-8,CE B-S10030250 .Carbon steel core coated with an electrolytic copper layer,which is minimum 99.9% pure with no trace of zinc.The copper layer is bonded to steel core through an electrolytic process ,which is the most advanced 4-dimensional continuous plating method,which ensures a perfect and even bonding between the copper and steel. The rod finishing is brilliant,free of imperfections or peelings
1.For UL and CE standard ground rod.copper thickness equals or exceeds 0.254mm.
2.Electricity resistivity less than 0.059Ωmm2.
3.Tensile strength equals or exceeds 600N/mm2.
4.Anti-corrosion:put in concentration of 10% nitric acid,soaking for more than 90 hours,no corrosion weight loss equals or exceeds 15%.
5.Copper bonding strength: sustain heat above 300 °C up to 1 hour after the quench,the copper layer is not peeled off.
6.Copper coating plasticity: bend the ground rod to 180 degree,the copper layer doesn’t break or peel.
copper bonded steel earth rod