To implement intensive measuring assets and other demands of SGCC

and the principle on maintenance and taking advantage of replaced intelligent electric meter

aremnant life assessment model of replaced intelligent electric meter is built by combining health index and grey theory. Remaining life can be deduced by combining grey theory and health index calculation formula of power equipment from British firm EA. An accelerated life test plan is determined according to expertise

and the proposed method is feasible and practicable by using accelerated life test data of replaced intelligent electric meter.