Backfill Earthing Compound - High Conductivity, Low Resistance, Enhanced Corrosion Resistance | Essential For Effective Grounding Solutions

What is Earthing and why is it necessary?

Earthing is the grounding or fastening electrical installations to earth. In electricity supply systems, an earthing system defines the electrical potential of the conductors relative to that of the Earth's conductive surface.

Installation and maintenance of an effective low resistance earthing system is essential due to the following-

- Efficiently dissipate heavy fault currents and electrical surges, both in magnitude and duration, to protect equipment being damaged so as to minimize down time, service interruption and replacement cost.

- Provide a stable reference for electrical and RF circuits at the installation to minimize noise during normal operation.

- Protection of personnel who work within the area from dangerous electric shock caused due to step potential or touch potential.

Characteristics of good Earthing system

- Excellent electrical conductivity

- Low resistance and electrical impedance

- Conductors of sufficient dimensions capable of withstanding high fault currents with no evidence of fusing o mechanical deterioration.

- Lower earth resistance ensures that energy is dissipated into the ground in the safest possible manner.

- Lower the earth circuit impedance, the more likely that high frequency lightning impulses will flow through the ground electrode path, in preference to any other path.

- High corrosion resistance

- The choice of the material for grounding conductors, electrodes and connections is vital as most of the grounding system will be buried in the earth mass for many years. High hot dipped galvanised electrodes should be used to for this purpose.

- Mechanically robust and reliable.

- Should be maintenance free.