樱花草在线社区www韩国_好姑娘免费观看高清电影_中文字幕有码无码av_硬了二十分钟没进去就软了_久久无码av三级_国产精品秘入口18禁麻豆免会员_午夜少妇偷人高潮a片_国产一女三男3p免费视频_最美情侣国语版免费观看高清

       Product type: Zinc grounded battery

　　Execution standard: ASTM-B418 / GB/T4950-2002

　　Main performance:

　　the cathodic protection does not affect the structure itself; Building cathodic protection does not cause galvanic corrosion due to grounding.

　　Scope of application:

　　in the ac interference and lightning area, to prevent damage caused by strong electric impact, not damage to the protected structures.

　　The zinc grounding battery is composed of a pair or four zinc alloy sacrificial anode rods which are parallel to each other, separated by an insulating pad in the middle, and then packed together in a cotton bag with packing material. In order to prevent damage to the insulation joints and flanges caused by high-voltage surge in the process station or pipeline side, the grounding battery should be installed near the insulation device of the pipeline. The cable is welded on both sides of the insulation device (insulation joint or flange) to prevent damage caused by strong electric impact, and the grounded battery can also protect the pipeline in daily situations.

　　Detailed introduction:

　　The zinc grounding electrode can be used to replace the copper or steel grounding electrode used in the past, which can solve the problems of cathodic protection and grounding at the same time, and greatly reduce the investment and cost of the project.

　　Advantages:

　　(1) The cathodic protection of the structure itself is not affected.

　　(2) if the building cathodic protection will not cause galvanic corrosion because of grounding.

Notes:

　　When used in the soil, the filler should be applied, and its proportion is: 75% gypsum, 20% bentonite, 5% sodium sulfate.