Zinc Earthing Cells

          Zinc earthing cells do not affect the cathodic protection of the structure itself, and the cathodic protection of the building will not cause galvanic corrosion because of grounding.Zinc earthing cells can cost copper or steel earthing electrode used in the past in the engineering, and solve the problem of cathodic protection and earthing at the same time, which greatly reduces the investment and cost of the engineering.

          Zinc earthing cells by a pair of parallel near or four zinc alloy sacrificial anode rods, middle separated by insulating pad, and then together in a complete package material of cotton bag, to prevent the yard or pipe side high voltage surge on the damage of the insulation joint, flange, near the pipe insulation device should be installed grounding cell, by welding lead cable in both sides of the insulation device (insulation joint or flange), in order to prevent the high voltage shock caused by damage, at the same time everyday situations grounding battery can also be used for pipeline protection.

• Matters need attention：

          When used in soil, the filling material should be used in the proportion of 75% gypsum, 20% bentonite and 5% sodium sulfate.

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