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China Starwin Science&technology Co.Ltd
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Payment Terms: | T/T |
Place of Origin: | Shaanxi, China (Mainland) |
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Grounding System
KNFDT Series Of Copper Clad Steel Grounding Pole
KNFDT system for copper clad steel grounding pole is the use of special electric casting technology and it
will be 99.9% of the copper covered uniformly to the low carbon steel core, copper and steel core is fully
molecular binding (such as the combination of the two is not dense, in the case of electricity, will produce
the original battery reaction, metal iron anode oxidation reaction occurs into the iron loss, accelerated steel
core by erosion. It has copper thickness (0.25 mm or more), good adhesiveness,do not peel (rolling thread)
etc. It has the advantage of high tensile strength (tall 600 n / mm2), corrosion resistance(which can ensure
the service life in more than 50 years), with low resistance constant and good plasticity, have both the
properties of copper equivalent and built the steel properties.
Casting copper ground scale bar, buried deep underground in both natural corrosion or electrochemistry
reaction, it has strong protection ability. The grounding rod and grounding connection by welding powder
was exothermic welding, the grounding device is completely under the protection of copper, and is a
maintenance free earthing device real.
Cast copper grounding rod is equipped with a coaxial connector, and the driving head drill bits and other
accessories. According to different geological and use requirements can be achieved by the use of brass
coaxial connector (connecting bolts) connection, arbitrary increase casting copper ground bar length. The
top drive head (connecting bolt) connection, against the use of bat for deep. End use special drill
(connecting bolt )connection, to facilitate the stick deep.
Note: product (Pic1), left for casting copper combination chart, right for the length of 1 meters (end tip)
cast copper. Cast copper (Pic 2) can be connected to the bottom end of the drill bit (Pic 4), can also be
used (end tip) cast copper bar connection. The other end can be connected (Pic 3) of the driving head.
KNFDT Grounding Rod Structure
The main rod: grounding rod is made of high quality cold drawn steel, using the special equipment and the casting of copper (thickness 0.3-0.5mm, the copper content of 99.9%),to ensure that it has excellent electric conductivity and mechanical strength, the product has excellent anti-corrosion. |
Connecting Pipe:between the rod and the rod can adopt connected with a copper connecting pipe and has an excellent corrosion effect.Contact between the rod and the rod close, in the ground rod into the ground or the drill into the ground when the driving force directly drive to the grounding rod.Divided into threaded and non threaded connection. |
Driving head: made of high strength alloy, can guarantee the driving force into the ground directly. |
Alloy tip: Guarantee complex geological conditions into the ground. |
KNFDT Grounding Rod Features And Advantages
1.A unique manufacturing process: using the domestic first level connection casting production process, to
achieve between the copper and steel metallurgy smelting.But as any drawing like drawing a single metal, not
appear disjointed, become warped skin and cracking phenomenon.
2.Superior corrosionresistant properties: composite interface using high temperature welding, no residue,
combining surface can not erode; surface with thick copper layer (mean thickness greater than 0.4mm) strong
corrosion resistance, long service life (more than 30 years), reduce the labor intensity of maintenance.
3.Better electrical properties: excellent conductive performance of surface copper material, make its resistance
value is much lower than that of conventional materials.
4.Wide applicability: the product is suitable for use in different soil moisture,temperature, pH value and the
resistivity variation conditions of ground construction.
5.Safe and reliable connection: the use of special connecting tube or by welding,joint is firm, good stability.
6.Convenient installation: complete accessories, convenient installation, can improve the speed of construction
effectively.
7.With the high ground depth: special connection transmission mode, can be as deep as 35 meters underground,
in order to meet the requirements of special occasions with low resistance.
8.The construction cost is low: the construction method using pure copper on the grounding rod, street area, the
production cost is decreased greatly.
Copper clad steel main technical parameters
①the thin copper layer thickness≥0.3mm
②tensile strength≥600N/mm2
③straightness error≤1/mm/m
④the copper layer plasticity: ground rod (wire) bending 30 degrees angle of inside and outside edge, no crack
phenomenon
⑤the copper layer combined degrees: the adhesion test, in addition to spalling copper layer appears thumb
forceps jaw occlusal rest place, with copper and steel is good, does not appear peeling phenomenon
According to the required length can be connected with the grounding rod,grounding rod can be as deep as 30
meters underground, and not from any possible increase soil resistivity and the grounding resistance of the
climatic conditions (such as the frost and drought) effect.
KNFDT Grounding Rod Application Scope
Widely used in power plant, substation, transmission line tower, communication base station, airport, railway,
various kinds of high-rise buildings, the microwave relay station, network computer room, petrochemical plants,
oil storage tanks and other places of the lightning protection and grounding, anti-static grounding,protective
grounding, grounding etc.
KNFDT Grounding Rod Models, Specifications
Copper clad steel grounding rod standard type and combination type two kinds of structure:
KNFDT-1(standard) type:A single copper clad steel grounding rod, one end of the cutting angle of 60 degrees,
the other end is cut flat and truncated.
KNFDT-2(combination)type:By a plurality of copper clad steel grounding rod, connection and grounding into the
body through the screw thread connector, used for deep ground, the most up to 35m. A single copper clad steel
at both ends round thread rolling, and truncate the chamfer, the stress surface is applied to provide the insertion
of the earth.
Copper clad steel grounding rod common specifications are as follows, according to users need processing other specifications
Copper clad steel grounding rod common specifications (Standard type or combination type) | |||
φ12×1200 | φ16×1200 | φ20×1200 | φ25×1200 |
φ12×1500 | φ16×1500 | φ20×1500 | φ25×1500 |
φ12×1800 | φ16×1800 | φ20×1800 | φ25×1800 |
φ12×2500 | φ16×2500 | φ20×2500 | φ25×2500 |
φ12×3000 | φ16×3000 | φ20×3000 | φ25×3000 |