1. The copper-clad steel earth rod adopts anti-corrosion new welding technology and exothermic welding.
2. All copper-clad steel earth rods must be copper-plated by electroplating process, and the continuous casting process of copper-clad steel is completed, and the thickness of the copper layer is not less than 0.254mm
3. The flux used for exothermic welding must support an integrated sealing flux, adopt an electronic ignition method, and the ignition distance is not less than 1.5m, and it has passed UL467 certification.
In recent years, petrochemical, electric power, communications and other system companies have been getting more accidents due to grounding device failures. The reliability, stability and service life of grounding devices have attracted widespread attention, so electroforming copper clad steel materials have replaced traditional thermal galvanized steel, using hot-melt welding to replace traditional electric welding connections to build grounding devices has gradually become popular. The thickness of the copper coating of the copper-clad steel earth rod can be measured by an electronic thickness micrometer at a specified number of times at each point, and the thickness must be at least 0.250mm. This thickness ensures that the bottom of the thread produced after copper plating is completely covered by copper. The copper coating thickness of the copper-clad steel earth rod is 0.250mm, which is guaranteed to be used underground for 30 years. The plasticity of the coating - the rod is bent 180 degrees and then tested, there must be no cracks and peeling, and the adhesion of the copper coating - when the ground rod is driven into the ground, it should be tested whether the coating tends to separate. The specific method is: clamp the ground rod to be tested between vise, the distance between the jaws is equal to the rod diameter minus 1.2mm. When the rod is squeezed, the vise will cut off the plating of the rod in contact with it, and the remaining part of the surface of the plating will not peel off. Such a plating can ensure that the ground rod can be threaded after copper plating.
The copper-clad steel earth rod has strong corrosion resistance. After being buried deeply in the ground, whether it is natural corrosion or electrochemical reaction, it has strong protection and good electrical performance; the excellent electrical conductivity of the surface copper material makes its own resistance value far lower In conventional materials. The copper-clad steel earth rod has the advantages of reliable connection, firm joint, and good stability, and it uses special connecting pipe or exothermic welding.
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