Earth materials

Inspection pits are primarily used for regular resistance measurement of grounding systems. Before measuring resistance, remove the inspection pit cover and connect the measurement instrument wire to the grounding conductor.
They are widely used in grounding-related projects, including protective grounding, anti-interference grounding, lightning protection grounding, and anti-static facilities. Inspection pits provide great convenience for real-time monitoring of grounding efficiency and testing grounding effectiveness.
Different sizes and materials of inspection pits are available.

Promov brand efficient bentonite resistance reducing compounds is placed around the earthing conductor. lts main function is assisting reducing earthing resistance,improving earthing conductor's working environment and protecting earthing conductor from corrosion, thus it can efficiently extend earthing conductor's service life

lon grounding electrode,used together with efficient bentonite resistance reducing compounds, can directly lower down earth resistance around electrode. Even in sand or rocky soil, it can maintain low resistance.It is maintenance free and can quickly dissipate lightning power and other dangerous short circuit current.

Exothermic welding is a simple, high efficiency and high quality method of metal connecting.

Promov exothermic welding uses high temperature reaction of powdered copper oxide and aluminum. It is a method of welding copper, iron, steel and ferroalloy without extra power.

To weld different size conductors, a graphite mold is needed. Simply place the conductors to be welded in the mold, add the powder, ignite the starting powder, and the reaction will occur. Once cooled, open the mold to reveal the finished conductor connection. We supply various connections along with the matched mold and welding powder.

(Tinned) Copper clad steel earthing wire is produced by continuous casting or electroplating. it has similar advantage of copper bonded ground rod, and much cheaper than copper wire. lt is good conductivity and good anti-corrosion, low resistance and fewer connections.

Coper clad steel wire is produced by continuous casting and hot dip process. it has advantage of good anti-corrosion, easy welding and
convenience construction.

coupler material: brass or bronze ; driving head material: high tensile steel ; driling head material: high tensile steel

Promov earth rod is applying 99.95% pure copper on low carbon steel by electroplating. it is a molecularly bonding Production strictly follows national and international standards such as UL467 and BS7430. Copper layer is usually 254 microns. Popular diameters are 1/2", 5/8" and 3/4".Earth rod can be threaded and tipped.We introduced automatic electroplating production line so as to guarantee the electroplating quality and large production capacity.
Copper bonded earth rod has advantages of high conductivity and anti-corrosion . it is easy to install.