Electrical Technology 2020-8-10
Thread Content
This post was last edited by sdscj0122 on 2020-8-10 08:49. It involves multiple-choice questions from the \"Electrical 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. 125. Installing a ground wire must be done by two people. Correct
Correct. Explanation: Installing grounding wires is carried out after safety measures such as power shutdown and voltage checking; in many cases, the work must be done near live equipment. Not only should grounding wires be installed, but their removal also must comply with the regulations for working on high-voltage equipment. This task should be carried out by two persons working together, in order to prevent mistakes from occurring due to lack of supervision, as well as to avoid serious consequences such as injuries to people resulting from the installation of grounding wires while the equipment is still under voltage, with no one available to provide assistance. To this end, it is necessary to comply with the relevant provisions of the Safety Regulations. When implementing safety technical measures for substations with single-person duty, it is only allowed to close the grounding isolator through the operating mechanism, or to use a basic safety tool—an insulating rod—to close the grounding isolator.