Copper bonded steel electrode is a kind ofcomposite metal conductor made from copper and steel through speccial process.According to its installation structure, copper bonded steel electrode could bedivided into vertical and horizontal electrode. This product has steel’s highstrength and tenacity, while copper’s high conductivity and corrosionprotection, its life span is more than 30 years.
Copper bonded steel electrode is the perfect coalition of mechanical strength and corrosion protection which features atlow-cost, easy to installation and high efficiency. The electrode has high current-carrying ability and good conductivity according to the skin effect ofcurrent, which composed by mid or low carbon steel core bonded with 99.90%copper. It can be located into the soil directly.
IEC/BS EN 62561-2；
1. Copperaverage thickness≥0.254 mm;
Vertical electrode≥500 N/mm2
Horizontal electrode 300 N/mm2-500 N/mm2
Flexing to 30°, no cracking at bending point.
4. Copperbinding test
Locate the electrode at pliers, the distance of jaws is the diameter of electrode and minus 1.02mm. When extruding the pliers,it will cut the contacting copper film, but the rest copper film will be peeled off.
After electrical – corrosion test, the final resistance should not exceed 50% comparing to the initial and should not exceed 15% every test circle, no cracking, gaps, pit or bubble.
1. Special manufacturing process
Copper- Steel bimetallic material, compounded molecular chain, assure the stretchability to form a single compound system,falling-off, peeling-off or cracking will not happen.
2. Excellent corrosion protection
The life span of electrode is more than 30 years (The annual corrosion rateof copper is 10μm/year).
3. High conductivity
The coating uses 99.9% copper has good conductivity, while its resistance is far less than steel ,galvanized steel andother conventioal grounding material.
4. Easy to installation, good apperance
The electrode could penetrate into under 30m by special connection way tomeet the low resistance requirement. Its surface is smooth with bright luster,good appearance.
This product is applicable for normal environmentand damp, salt alkali, acid soil and other corrosive working environment. Itcould be applied to lightning protection and grounding system, anti-static grounding, protective grounding, working earthing and etc. at power plant,transformer substation, transmission line tower, communication base station,airport, rail, high-rise building, oil field and storage warehouse.