Earthing Materials
Application
In electrical grounding, electrical workers doing their job on de-energized equipment are exposed to arc flash events of terrible magnitude. Having high-quality grounding equipment is crucial for protecting workers from electric shocks and equipment from being damaged.
Therefore, L&R also manufacture most innovative grounding devices, offering high-level security, lightweight, flexibility, ease-of use and durability.
Choose the equipment that best suits your needs, from grounding earth rod, assemblies, sets, clamps to adaptors, connectors and clusters.
COPPERBONDED EARTH RODS - EXTERNALLYTHREADED
Normal copper(stainless steel,galvanized) bonded earth rods-254 microns(customized available) are manufactured by electroplating 99.9 % pureelectrolytic copper onto a low carbon steel bar with high tensile strength (minimum 600N/mm2). To preventoxidation of copper bonding, each rod is treated with Benzol Triozole derivatives. Thre ads on the rods are formed by rollthreading process giving extra strength to the threads and eliminating risk ofchipping ofthreads while driving the rod in the ground. The rods are Externally threaded and matched with couplers inter
Nom.Dia |
Core |
Length |
Weight Each |
Min. Copper |
|
Dia. |
Mtr |
|
Thickness |
| 1/2" |
12.7 mm |
1.200 |
1.205kg |
254 micron |
| 1/2" |
12.7 mm |
1.500 |
1.506kg |
254 micron |
| 1/2" |
12.7 mm |
1.800 |
1.807kg |
254 micron |
| 1/2" |
12.7mm |
2.400 |
2.41kg |
254 micron |
| 5/8" |
14.2 mm |
1.200 |
1.53kg |
250 micron |
| 5/8" |
14.2 mm |
1.500 |
1.88kg |
250 micron |
| 5/8" |
14.2 mm |
1.800 |
2.29kg |
250 micron |
| 5/8" |
14.2 mm |
2.135 |
2.677kg |
254 micron |
| 5/8" |
14.2 mm |
2.400 |
3.00kg |
250 micron |
| 5/8" |
14.2 mm |
3.000 |
3.79kg |
250 micron |
| 3/4" |
17.2 mm |
1.200 |
2.19kg |
250 micron |
| 3/4" |
17.2 mm |
1.500 |
2.73kg |
250 micron |
| 3/4" |
17.2 mm |
1.800 |
3.27kg |
250 micron |
| 3/4" |
17.2 mm |
2.135 |
3.922kg |
254 micron |
| 3/4" |
17.2 mm |
2.400 |
4.35kg |
250 micron |
| 3/4" |
17.2 mm |
3.000 |
5.44kg |
250 micron |
Our Services
1. Copper layer thickness: >=0.254mm
2. Resistivity: <=0.05ohm/mm
3. Tensile strength: >=500N/mm
4.Life: More than 50 years
The manufacturing process:
Copper bonded ground rod is casting copper to low carbon steel core through an electrolytic process-- 99.9% copper molecules evenly covering the steel core. It is very uniform copper layer and the thickness is 0.254mm or more. Products have the conductivity of copper and the tensile strength of steel. Since the copper layer and the steel material is a binding molecule, the copper layer is not easily peeled off, and will not crack when bent in 90 degrees.
Good conductivity
Since the copper bonded ground rod of the outer copper layer of 99.9% purity electrolytic copper, having a thickness of 0.254mm or more, the conductivity has been tested more than 40%, when the transmission frequency is greater than 1.67MHz, which is fully equivalent to the conductive properties of solid copper.
Strong corrosion resistance:
The surface of the earth rod is 99.9% pure electrolytic copper. Combined with its copper and steel are molecules overcome their electrochemical corrosion, buried in the soil and thus has a strong resistance to corrosion, the service life of over 50 years.
Tensile strength:
Copper bonded ground rod has conductivity of copper, and steel's large tensile strength (up to 600N/mm2) characteristics. In construction operations, ground rods can be easily driven into depth of up to 20m or more under the ground. That will reduce a lot of trouble during construction and installation costs.
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