Question T0B04
From subelement T0 - T0B
Which of the following is an important safety precaution to observe when putting up an antenna tower?
Why is this correct?
Option C is correct because overhead power lines pose the greatest immediate danger during antenna installation. The key safety rule is maintaining enough distance so that if the antenna falls, no part comes closer than 10 feet to power wires. Option A is incorrect—wrist ground straps are for electronics work, not tower installation. Option B is wrong because insulating the tower base doesn't prevent lightning strikes and creates other hazards. Option D is incorrect since only C represents proper safety practice.
Memory tip
Power line safety questions follow a consistent pattern: they focus on the 10-foot clearance rule and avoiding utility poles. Remember that electrical hazards are always the primary concern in antenna installation safety—other safety measures are secondary to avoiding electrocution from power lines.
Learn more
Power lines carry thousands of volts and represent the most lethal hazard in amateur radio antenna installation. The FCC emphasizes electrical safety because contact with power lines can energize your entire antenna system, creating deadly voltage at your operating position. Professional tower crews always conduct power line surveys before any installation work. This principle extends beyond towers to any antenna work—even temporary wire antennas must maintain safe clearances from electrical distribution systems.
Think about it
Why do you think the 10-foot clearance rule applies even when the antenna falls, rather than just during normal operation?