In recent years, the rapid development of domestic subway, in some second and third tier cities have opened and subway construction. During construction metro rail stray current protection system, flat copper measuring anti terminal construction difficult and easily stolen, it is difficult to ensure the integrity of the stray current protection system. Combined with the actual situation, proposed an anti-theft effect is obvious, simple construction, and more reliable, more economical and more aesthetic connections and alternative products. The new anti-submerged stray current measured flow fan terminals in Xi'an Metro Line 1 and Line 2, Nanjing Metro Line 3, Wuxi Metro Line 1, Line 2, Changsha Metro, Shanghai Metro Line 11, Fuzhou Metro Line 2 Metro Line 3 Qingdao, Suzhou Metro Line 4, Beijing Changping Line subway, Guangzhou Metro Line 14 subway projects such as the construction was adopted, and achieved good results. Railway rail ground terminal is widely used in high-speed electrified railway, metro rail, the general corrosion of copper or stainless steel casting direct infusion in cable ducts or other concrete products. Accordance with IEC 62305-3 requirements when using copper casting material should reach more than 98% purity, when the use of stainless steel casting material shall meet: Cr≥17%, Ni≥8%, Mo≥2%, C≤0.06%. (Electrified railway beam, the ground terminal on the pier itself and needs no cable bridge bridge pier caps, set hole (M16 or M12); as well as on cable bridge embankment needs Pier cap, generally located holes (M16 or M12), special circumstances may be porous (M16 or M12) to use as an extension busbar) rail buried ground terminal Standard: Iron integration [2006] No. 220 on the issuance of "Passenger Special grounding techniques Implementation Measures (Interim ) "notice; DB997-0223, the provisions of IEC 62305-3, Q / HY04-2009 bridge then type ground terminal. 1, between the copper terminals and exothermic welding galvanized steel bar, copper terminals for hot forging manufacturing process, in accordance with IEC 62305-3 requirements when using copper casting material purity should be more than 98% copper. DC resistance welding points less than 30μΩ, single embedded terminal overall resistance of less than 200μΩ, welding materials through the terminal at the junction with the lower area of ??not less than 800mm2, the carrying capacity of not less than 600A. 2, the top copper tips bolt holes of M16 or M12, M12 or M16 threaded bolt holes in line with common security thread GB3934 requirements, while M12 or M16 threaded hole plugs and processing to increase the height of not more than 1mm plastic protective cover, in order to to prevent the construction of slurry coming down bolt holes. Hole depth 25mm, galvanized steel bar diameter of not less than φ16, length not less than 120mm, round concrete length is determined according to the actual situation. 3, copper terminals with anti-twist measures, such as setting the flank to prevent the bolts screwed, resulting embedded terminal occur synchronously rotating and damage the concrete or the lower welding loose. 4, each buried drain ground terminal M16 or M12 contains a stainless steel anti-theft bolts, M16 or M12 stainless steel flat washers, spring washers, one each. At the factory, the surface should be installed copper terminals Ninglong or plastic protective cover to prevent other impurities while covering the civil construction copper terminal surface into the bolt holes affect its conductivity and connectivity. Cover with copper terminals, galvanized steel bar should be for the whole supply. Our company specializes in the production of copper grounding terminal head, can OEM production, Welcome to plant study guide! Contact: Gary Business Hotline: 15068210571 E-mail: guminxu@126.com