How is high voltage defined?

High voltage is defined as any electrical voltage that exceeds certain thresholds, specifically greater than 1000 volts for alternating current (AC) and greater than 1500 volts for direct current (DC). This definition is critical in the context of safety and regulations, as voltages at or above these levels present significant hazards and require specialized equipment and training for handling.

Understanding this distinction is essential for electrical professionals, as it delineates the boundaries where increased safety precautions become necessary. When working at these high voltage levels, additional safety measures, protective equipment, and adherence to relevant codes and standards are vital to ensure the safety of the workers and the integrity of the installation. In contrast, other voltage ranges, such as those specified in the other options, do not classify as high voltage according to this definition. This clarity helps professionals identify the necessary protocols and training required in their respective tasks.