Electrical Technology 2020-8-3
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This post was last edited by sdscj0122 on 2020-8-3 08:51. It contains true/false questions based on the \"Power Safety Work Procedures\"; please indicate whether the answer is correct or incorrect. 3 points are awarded for correct answers, 2 points for incorrect ones, and 5 points for detailed responses. 115. Before testing for electricity, a test should be conducted on a device that is powered on to confirm that the voltage tester is in good condition. Correct
Correct. Explanation: A contact-type voltage tester that matches the corresponding voltage level and is of qualified quality should be used for voltage testing. Before testing for electricity, a test should first be conducted on a device that is powered on, to confirm that the voltage tester is in good working condition ； When it is not possible to conduct tests on powered equipment, an industrial-frequency high-voltage generator or similar can be used to verify that the voltage detector is in good condition. When testing for electricity, the person performing the test must maintain a distance from the equipment being tested as specified in the safety regulations, and there should be a dedicated person to supervise the process. When using a telescopic electric tester, the effective length of insulation must be ensured. Insulated gloves should be worn when testing for electricity. For equipment that cannot be tested for electricity directly, indirect testing can be performed.