Which of the following is not a standard rule for workers doing electrical work?

The option indicating the use of cotton insulating gloves is where the distinction lies. When performing electrical work, it is crucial to use gloves that are specifically designed for electrical insulation, not just any cotton gloves. Electrical work often involves exposure to potentially hazardous voltages, and the right type of gloves, typically made from rubber or other insulating materials, provide the necessary protection against electric shock and reduce the risk of injury.

In contrast, wearing rubber-soled shoes helps to provide insulation from electrical currents when working near live circuits. Using insulated tools is critical to prevent accidental contact with live parts and to protect the worker. Additionally, ensuring that the work area is dry is essential, as moisture can increase the risk of electrical shock and reduce the effectiveness of insulating materials. Each of these practices plays a vital role in maintaining safety standards for electrical work, thereby affirming that the gloves worn must be suitable for electrical work rather than standard cotton gloves.