The mutual influence and reasonable order of environmental test projects were analyzed,and general principles were expatiated when the order of environmental test project was selected.

The fundamental requirements,working principle,analysis of main technical parameters,a brief of test project of DC 1 900 V 400 A fuse used on subway electric locomotives were presented,in order to promote design and manufacture of home made DC fuse with extra best brand and to get rid of status of depend on import pro-(duct) over a long period of time.

The main test items includes accuracy test,simulation test,isolation test,environment test,electromagnetic compatibility test,mechanical performance test,continuous-cu.

This paper outlines the need for preventive test of distribution transformers and the associated pilot projects, and describes how to analyze and judge the test results.

Based upon the illustration of the setting up basis of program labs,it introduces the experimental data management in program lab management planning,and experimental account setting,illustrates the main content of project experiment management,and summarizes the experiment management after finishing project.