What is the maximum voltage for low-voltage installations as typically defined?

Low-voltage installations are generally defined by their maximum voltage to ensure safety and reduce the risks associated with electrical shock and fire hazards. The standard threshold for low-voltage is commonly set at 50 volts AC or 120 volts DC. This threshold is significant because it falls below the point where the potential for electric shock becomes more dangerous, particularly in instances where the current can easily pass through the human body.

Voltage levels above this threshold can pose a higher risk, making the designation of 50 volts a pivotal standard in many electrical codes and regulations. Therefore, classifying installations below this voltage helps in delineating applications that can be safely handled without specialized training or equipment typically required for higher voltage systems. This definition supports both compliance with safety regulations and the promotion of safe practices in electrical installations and maintenance.