5.1. Test preparation 5.1.1. The test staff is in place.5.1.2. Make detailed safety technical explanations to all test personnel before test.5.1.3. The tools and test equipment/instrument required for the test are prepared, and the measuring instruments used for the test are in good condition and qualified after verification.5.2. The tested equipment recovered after the test.5.2.1. Remove the test fuse and test lead.5.2.2. Restore the original state of the device. 5.3. Completion of test report.5.3.1Correctly record and review the test data during the field test.5.3.2. Issue a qualified test report.