What is the minimum approach distance for an unqualified worker in a 69kV yard?

The minimum approach distance for an unqualified worker in a 69kV yard is established to ensure safety and prevent electrical hazards. This distance is based on various industry standards, including those enforced by organizations like the National Electrical Safety Code (NESC) and Occupational Safety and Health Administration (OSHA) guidelines.

For a 69kV system, the correct minimum approach distance for unqualified individuals is 10 feet. This distance mitigates the risk of electrical shock and ensures that untrained personnel maintain a safe boundary when encountering energized equipment or lines. The value of 10 feet is designed to reflect a reasonable buffer that accounts for possible voltage gradients and ensures compliance with safety standards.

Understanding that the approach distance increases with higher voltage levels, the minimum of 10 feet serves as a crucial measure for anyone unqualified, emphasizing the necessity of keeping a respectful distance from areas where high voltage equipment operates. This concept is integral to maintaining safety protocols in environments where electricity is present.