Why are at least 2 people required when working on electrical tasks?

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Why are at least 2 people required when working on electrical tasks? There was an electrician who, during his lunch break, worked alone on the low-voltage capacitor banks in the central control power distribution room. For convenience’s sake, and without turning off the power supply, he used pliers to remove and insert fuses. As a result of this improper action, the pliers made contact with adjacent fuses, causing a short circuit; the resulting arc led to severe burns on the electrician’s body, and many components on the electrical panel were also destroyed. The electrician’s violation of safety procedures by working while the power was still on was the direct cause of the accident. However, there is another factor that many people overlook: the electrician was working alone. It should be noted that electricians are strictly prohibited from working alone; at least two people should be involved in such tasks. There are three main reasons for this: electrical work requires one person to supervise while another carries out the work. Electricians are a special category of workers who are exposed to certain risks, and it is essential to have someone to supervise them. The supervisor must pay attention to the surrounding environment, such as whether there are any overhead cranes lifting heavy objects or any mechanical hazards, and they must also monitor how the worker is performing the task, checking whether the power has been turned off, whether there are any wiring errors, etc. The responsibilities in this role are indeed significant. It facilitates cooperation during tasks and reduces errors. Electrical work is relatively complex, and in many working situations, cooperation among people is necessary. For example, in places with poor lighting, one needs someone else to provide illumination ； During the task, assistance may be needed from others to measure voltage and current using a multimeter, or to communicate with other personnel using a walkie-talkie. Operating these by oneself is very inconvenient, but having someone assist not only speeds things up greatly but also helps avoid mistakes. The Electrical Worker Safety Procedures specify clear requirements. Article 2 of the «Electrical Worker Safety Procedures» states that electrical work must be carried out by two people simultaneously, with one person working and another acting as a supervisor. Safety first, life above all. These operating procedures are established with the safety of electricians and the proper functioning of the equipment in mind; please make sure to comply with them strictly! Electrical work falls under high-risk industries; not only is there the risk of electric shock, but if working at heights, there are also risks of falls and injuries. When two people are working together, having one person work while the other acts as a supervisor can help prevent many accidents. Therefore, one must never rely on luck – it is essential to strictly adhere to and implement the supervisor system