Abstract:

In this paper,based on the proficiency testing of power frequency withstand voltage test of low voltage apparatus,the laboratories test the same sample according to the unified method,and the organizers evaluate the ability of the laboratories according to the pre-determined criteria.This proficiency testing can help laboratories to supervisory control their testing ability,compare the differences between laboratories,and promote the consistency of test results in power frequency withstand voltage test.

Key words: low voltage apparatus, power frequency withstand voltage test, proficiency testing, analysis of influencing factors