For a voltage level of 69KV, what is the PTG distance requirement?

For a voltage level of 69 kV, the PTG (Phase-to-Ground) distance requirement is typically established based on industry standards and safety protocols to prevent electrical hazards. The correct distance reflects the necessary physical spacing to ensure that electrical equipment is safeguarded against accidental contact and short circuits.

The figure of 2 feet 11 inches corresponds to a recognized standard for voltages in that range, where spacing requirements are crucial to maintain safety protocols within substations and electrical installations. This measurement is designed to allow safe clearances for maintenance, equipment operation, and to mitigate risks associated with electrical faults. Lower clearances, such as those indicated in other options, do not meet the safety standards for high-voltage equipment, which is why they are not appropriate for this voltage level.

Knowledge of these clearances is essential for anyone working in electrical fields, particularly in substation environments, where high voltage poses significant risks. Properly adhering to these standards ensures the safety of personnel and equipment in the electrical infrastructure.