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.
Technique Parameters:
1.UL ground rod.copper thickness is equal or above 0.254mm.
2.Electricity resistivity is less than 0.059Ωmm2.
3.Tensile strength is equal or above 600N/mm2.
4.Anti-corrosion:put in concentration of 10% nitric acid,soaking for more than 90 hours,no corrosion weight loss is more than 15%.
5.Copper bonding strength: sustain heat above 300 ℃ 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.
Actual Diameter (mm) | Customizable Length (m) | Copper Thickness | Thread Sizes |
12.7 | 1~3.05m | 0.025mm-1mm | 9/16 |
14.2 | 1~3.05m | 0.025mm-1mm | M16.5/8 |
16.0 | 1~3.05m | 0.025mm-1mm | M18 |
17.2 | 1~3.05m | 0.025mm-1mm | 3/4 |
18.0 | 1~3.05m | 0.025mm-1mm | M20 |
20.0 | 1~3.05m | 0.025mm-1mm | M22 |
22.0 | 1~3.05m | 0.025mm-1mm | M24 |
25.0 | 1~3.05m | 0.025mm-1mm | M27 |
