铜包钢接地结构
主棒:接地棒选用优质冷拉元钢,用专用设备外铸紫铜(厚度为 0.3~0.5MM,含铜量 99.9%),以保证其具有优良的导电性能和机械强度,该产品具有优良的防腐蚀性能。
连接管:棒与棒之间可以采用铜制连接管连接,具有最佳的防腐效果。棒与棒之间接触紧 密,在将接地棒打入地下或采用驱动钻钻入地下时驱动力直接作用于接地棒。分为螺纹连接 和非螺纹连接。
驱动头:由高强度合金钢制成,可以保证驱动力顺利打入地下。
合金尖端:保证在 复杂地质条件下打入地下。
铜包钢接地棒的规格长度怎么选
铜包钢接地棒的一般长度也有很多,有1200mm、1500mm、2000mm、2500mm。不过根据施工要求,铜包钢接地棒一般设计要求都是在2500mm,因为只有这样的长度才能使得铜包钢接地棒能够不受干旱和严寒的影响,始终周围都是湿润的土壤保证有效的导电性。一般设计上有的设计为1220mm长,两根铜包钢接地棒连接起来使用,有的设计是一根25mm长的铜包钢接地棒。其实这两种设计都没有问题,但是从经济和施工方便的角度来看克雷安防雷推荐您使用一根2500mm的铜包钢接地棒,因为这样可以省去连接器和钻头之类的配件费用,更加经济实惠,另外施工也方便,直接把接地极打进去就行了,不用再把接地棒组合安装了。
铜包钢接地棒优点及应用
铜包钢接地棒已广泛应用在电力、石油化工、交通、民用建筑、大型机械装备的接地系统,具有使用寿命长、经济、导电性能优良等特点。铜包钢接地棒概述铜包钢接地棒是选用柔软度比较好,含碳量在0.10%-0.30%优质低碳钢,采用特殊工艺 将高导电的电解铜均匀的覆盖到圆钢表面,厚度在0.25-0.5mm,该工艺可以有效的减缓接 地棒在地下氧化的速度,螺纹是采用轧辊螺纹槽加工螺纹,保持了钢与铜之间紧密连接,确 保高强度,具备优良的电气接地性能。 该产品已广泛应用在电力、石油化工、交通、民用建筑、大型机械装备的接地系统,具有使用寿命长、经济、导电性能优良等特点。镀铜接地棒是常用的接地导体,除了具有很好的导电性外,铜导体还具有耐地下腐蚀的优点,因为 相对于其他可能的埋在地下的金属,铜是阴极,但是铜接地体的热稳定性较差,还会造成重金属 污染。在北美,电镀铜的钢棒用作垂直接地体或接地网的导体。镀锌扁铁 镀锌钢用作接地网材料,在国内很常见,主要是其造价相对较低,热稳定性较好,且受传统 思维束缚。当然我们应该充分注意接地网本身的腐蚀,地网的导电性及后期带来的维护费用。据 有关文献表明,铜材和钢材的截面积比为1:3。电阻率比为1:8。
Introduction to English
Advantages and applications of copper clad steel ground rod
The copper clad steel ground rod has been widely used in the grounding system of electric power, petrochemical, transportation, civil construction, large mechanical equipment, and has the characteristics of long service life, economy and excellent electrical conductivity. Overview of copper-clad steel grounding rods Copper-clad steel grounding rods are made of high-quality low-carbon steel with a good softness and a carbon content of 0.10%-0.30%. The high-conductivity electrolytic copper is uniformly covered on the round steel surface by a special process. At 0.25-0.5mm, the process can effectively slow down the oxidation of the ground rod in the ground. The thread is machined by the thread groove of the roll, which maintains the tight connection between steel and copper, ensures high strength and has excellent electrical grounding performance. The product has been widely used in the grounding system of electric power, petrochemical, transportation, civil construction, large mechanical equipment, and has the characteristics of long service life, economy and excellent electrical conductivity. Copper-plated grounding rods are commonly used grounding conductors. In addition to good electrical conductivity, copper conductors have the advantage of resistance to underground corrosion because copper is the cathode compared to other possible buried metals, but copper grounding bodies Poor thermal stability can also cause heavy metal pollution. In North America, copper-plated steel bars are used as conductors for vertical grounding or grounding grids. Galvanized flat iron Galvanized steel is used as a grounding mesh material. It is very common in China, mainly because its cost is relatively low, its thermal stability is good, and it is bound by traditional thinking. Of course, we should pay full attention to the corrosion of the grounding grid itself, the conductivity of the grounding grid and the maintenance costs brought about later. According to relevant literature, the cross-sectional area ratio of copper to steel is 1:3. The resistivity ratio is 1:8.