Use new electrode

Use new coal and salt layer

Use new earth wire

Use water and maintain wet condition

Reducing the pit depth for earthing

Increasing the depth of earth pit

Decreasing the length of the electrode

Connecting number of earth electrode in parallel

Megger

Ohm meter

Wheatstone bridge

Earth tester

Potential dividing method

Fall of potential method

Fall of resistance method

Current dividing method

AC is easily available

Protect the coils in the meter

Reduce the value of current in the meter

Avoid the effect of electrolytic Emf interference