Influence factors and reducing methods of earth resistances
Bo Liu · China Measurement & Test · 2009
Measurment results often deviate from their true results when the earth resistance meter works in poor environments or improper operation.In order to solve this problem,The composition of the earth resistance and the calculation of the earth resistance of the resistance body connected with the ground were discussed,all kinds of factors that make the measurement error of earth resistances increased and affected were analyzed.The physic methods,for example,deepening earth resistance of body connected with the ground to the optimal depth,or chemical method,for example,resistance depressing dose method,to reduce the earth resistance were proposed.