Notes

Earthing Protection System
Earthing systems play an essential role in a coordinated lightning and surge protection system. It really is responsible for safely dissipating the lightning currents to ground.
Lightning Protection experts can:
Design earthing systems for just about any application.
Install Low & High voltage earth farms.
Install Generator Earths
Provide advice on the best materials to utilize in existing ground conditions.
Supply and install all materials needed for installation.
Perform soil resistivity tests.
Types of earthing arrangements commonly used are:
Copper-bond earth electrodes
Copper lattice earth mats
Copper ring tapes
Soil enhancement agents
Drawings, drafting & red line
Deep driven bore holes
SURGE PROTECTION
Direct and indirect lightning strikes on a building can generate a surge in electrical power or transient voltage.
This lightning power surge can damage electrical devices that are plugged into an electrical outlet any place in the building. Even though these power surges are so brief they are measured in nanoseconds, they are able to cause considerable damage to electrical and electronic systems and equipment, resulting in the disruption of operational and sometimes even critical services, and leading to expensive down-time and repair costs.
Measured against the potential losses to business operations or essential services, the business enterprise case for surge protection becomes very clear.
A surge protector functions by channeling the extra voltage into the outlet?s grounding wire, preventing it from flowing through the electronic devices while at exactly the same time allowing the standard voltage to continue along its path. Electrical surges can harm computer equipment by burning its wires or gradually over time wearing down the device?s internal components and also get rid of any saved data. Surge protectors may also protect telephone and cable lines as these also carry electric energy.
Purpose of earthing:
To save lots of human life from danger of electric shock or death.
To protect building, machinery and appliances under fault condition.
To make certain all exposed conductive parts usually do not reach a dangerous potential.
To provide safe way to dissipate lighting and short circuit currents.
To keep the line voltage constant to prevent over current or excessive voltage on the appliances or equipments.

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