Product Features
◆ French **** manufacturing process
Produced by French **** copper electroforming technology, no delamination and cracking even if bent 180 degrees.
◆ Low cost, wide application**
Compared with the traditional pure copper grounding rod, the cost is reduced by 70%. Special multi-segment connection, can go 35 meters deep underground to meet the special environment construction requirements. Suitable for any project, wide application**.
Strong anti-corrosion properties
Oxygen-free copper layer on the surface is thick (up to 0.256~0.5), strong corrosion resistance, suitable for soil environment with different PH value, resistivity, humidity and temperature, with a service life of more than 30 years.
◆ Easy construction
Adopt WM exothermic welding or wire clip fixed connection, quick and simple, firm joint and good stability.
◆ Obvious resistance reduction effect
The surface oxygen-free copper material has strong electrical conductivity, and the resistance reduction effect is obviously better than ordinary metal materials.
Technical experiment
1, tensile strength: ≥ 600N/mm².
2, copper layer bonding: adhesion test, rod and copper steel bonding good, no flaking phenomenon, vise bite copper layer has a little flaking, is normal connection wear. You can lengthen the connection casing of the grounding rod according to the need, deep underground 35 meters to reduce the impact of climatic conditions (such as frost, drought) on the soil resistivity and grounding resistance.
Five, the amount of calculation formula
The grounding resistance of a single electroformed copper-clad steel grounding rod.
The amount of electroformed copper-clad steel grounding rod.
Rt → grounding resistance of a single electroformed copper-clad steel grounding rod (Ω)
ρ→ construction site soil resistivity (Ω-m)
L → electrochemical copper-clad steel grounding rod length (m)
d → diameter of electrochemical copper-clad steel grounding rod (m)
n → the amount of electrochemical copper-clad steel grounding rod (root)
R → design requirements of the grounding resistance (Ω)
η → utilization factor, generally take the value of 0.4 ~ 0.8 (refer to the compilation of lightning protection technical regulations).
