铜包钢接地极

1、铜包钢接地棒是安装人员提供的最佳、最方便的接地棒。它们是以99.9%纯铜原子通过分子结构，附着在低碳钢芯上制成的。它们的抗腐蚀性能极佳，而且由于所使用的钢材具有极高的抗张强度，可以被电动锤深深地打入地下。

Copper clad steel grounding rods probably offer to user the best and most economical,they are made by molecularly bonding 99.9% pure copper a low carbon steel core,they are high resistant to corrosion and very high tensile strength,they can be driven by power hammer to great depths.

2. 铜包钢接地极主要技术指标The Main Technical datas

铜层厚度：≥0.3㎜；    铜层纯度：≥99.9%

平直度： <1㎜/m；    抗拉强度：≥500N/mm²

铜层与钢芯以分子结合

the thickness of copper layer≥0.3㎜;

      the purity of copper layer≥99.9%

     Straightness <1㎜/m;   Tensile strength ≥500N/mm2

3.铜包钢接地材料优点Advantages of Copper clad steel grounding rods

（1）制造工艺独特：金属层以分子链形式完全结合，从而实现铜与钢之间可延性连接，成为单一复合体，可像拉拔单一金属一样任意拉拔，绝不会出现脱节、翘皮、开裂现象。

(1) Unique manufacture process: steel and copper joined together firmly and

completely in the form of molecular chain, thus making the joined material resistant to high tensible strength without any damage or broken.

（2）防腐特性更优：耐腐蚀性强，正常使用年限高达30年以上。（Cu的年腐蚀率<10μm，使用年限长。钢铁的腐蚀率通常为0.2-0.3mm/年，潮湿酸性土壤腐蚀率高达1.0mm/年，正常使用年限为6～10年）。铜层平均厚度（常规）≥0.3mm；UL标准要求大于0.254mm。

(2) High corrosion resistance quality: high anti-corrosion quality and expected

life time is over 30 years.( annual corrosion rate of Cu is less than 10μm thus with longer life time) . Generally speaking, the steel corrosion rate is 0.2-0.3mm/year,the corrosion rate of wet acid soil is 1.0mm/year, and the expected life time is 6-10 years). The average thickness of the copper is over 0.3mm; the UL standard is over 0.254mm.

 (3)电气性能更佳：表层为99.9%的金属铜，导电性能好，电阻率远低于钢材、镀锌钢材等常规材料。组合型铜包钢接地极的螺纹采用搓牙，铜层不会被破坏，电气性能稳定。由于电流的集肤效应，当铜层厚度大于0.254mm时，电流全部从外部覆层通过。

 (3) Better electric qualities: purity of the copper is 99.9%, thus the conduct ability is very good. The resistance rate of the copper bonded steel is far lower than other ordinary material such as steel, zinc painted steel and so on. The thread of Copper Bonded Steel Grounding Rod is made by thread rolling process，so the copper surface will not be damaged and the electrical function is stable. For the surface collection effect, when the thickness of the current is over 0.254mm, the current will go through the surface.