What is the distance formula for non-qualified workers near voltages above 50 kV?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Prepare for the Certified Utility Safety Professional Exam. Study using quizzes with multiple choice questions, hints, and detailed explanations. Enhance your understanding to succeed on your exam!

Multiple Choice

What is the distance formula for non-qualified workers near voltages above 50 kV?

Explanation:
When non-qualified workers operate near exposed energized parts, the safety distance must grow as voltage increases to reduce the risk of shock or arc flash. For voltages above 50 kV, the standard uses a base distance of 10 feet, plus an additional 4 inches for every 10 kV over 50 kV. So the rule is: distance = 10 feet + 4 inches per 10 kV over 50 kV. For example, at 60 kV the distance is 10 feet 4 inches. At 100 kV, over 50 kV is 50 kV, which adds 5 increments of 4 inches (20 inches, or 1 foot 8 inches), giving 11 feet 8 inches total. This is the reasoning behind the option that states 10 feet plus 4 inches per 10 kV over 50 kV.

When non-qualified workers operate near exposed energized parts, the safety distance must grow as voltage increases to reduce the risk of shock or arc flash. For voltages above 50 kV, the standard uses a base distance of 10 feet, plus an additional 4 inches for every 10 kV over 50 kV. So the rule is: distance = 10 feet + 4 inches per 10 kV over 50 kV.

For example, at 60 kV the distance is 10 feet 4 inches. At 100 kV, over 50 kV is 50 kV, which adds 5 increments of 4 inches (20 inches, or 1 foot 8 inches), giving 11 feet 8 inches total. This is the reasoning behind the option that states 10 feet plus 4 inches per 10 kV over 50 kV.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy