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Rod Earthing

Rod Earthing is an extremely popular form of Earthing as they are easy to install and retrofit.  Rod earthing involves driving metal rods made of copper, copper clad steel or stainless steel.  

The Rods used for earthing are usually about a metre long with a diameter of around 12 mm.  The rods should be driven to a depth of around 2.5 metres.  Usually the rods have threaded sections on one end so that the rods can be driven one on top of another to achieve the required resistance.

The Rods can be hammered into the ground.  This would be possible in sandy soil.  If the soil is hard, a Earthing rod driver which is a tool, usually pneumatic, which drives the earth rods into the soil is used.