Final answer:
The minimum safety distance for scaffolding near high-tension power lines is 10 feet for up to 50kV voltages, increasing by 4 inches for every 10kV above that, according to OSHA standards.
Step-by-step explanation:
The minimum distance required between scaffolding and high-tension power lines is determined by various safety and health administrations depending on the country's regulations. In the United States, the Occupational Safety and Health Administration (OSHA) generally mandates that for voltages up to 50kV, the minimum clearance must be 10 feet. For higher voltages, the clearance distance increases by 4 inches for every additional 10kV over 50kV. In any case, specific local regulations and worksite conditions may dictate a greater distance. It's crucial for professionals working in proximity to high-tension power lines to be aware of and follow these regulations to ensure their safety. Failure to adhere to these guidelines can pose severe risks, including electrocution.
For more precise distances or situations, workers should always consult with local regulatory bodies or seek the aid of a qualified electrician or engineer who is familiar with local laws and safety requirements.