Lineman Safety Regulations and Compliance 3 — Questions and Answers
Question 1: Under OSHA 1910.269, a qualified electrical worker is defined as someone who has training in which of the following?
- Avoiding the electrical hazards of working on or near exposed energized parts (Correct answer)
- Completing a four-year apprenticeship program only
- Passing an annual written safety exam
- Holding a state journeyman license
Correct answer: Avoiding the electrical hazards of working on or near exposed energized parts
OSHA defines a qualified worker as one with training and experience to avoid electrical hazards when working on or near energized equipment.
Question 2: What is the primary purpose of an equipotential zone when working on a de-energized line?
- To ensure the worker and all surrounding conductive objects are at the same potential, eliminating voltage differences (Correct answer)
- To provide a physical barrier around the work zone
- To measure the exact voltage on adjacent conductors
- To ground the worker's tools to the truck frame only
Correct answer: To ensure the worker and all surrounding conductive objects are at the same potential, eliminating voltage differences
An equipotential zone bonds all conductive objects together so no dangerous voltage difference can develop across the worker's body.
Question 3: What does OSHA regulation 29 CFR 1910.269(l) specifically address?
- Fall protection for elevated work locations (Correct answer)
- Arc-flash labeling requirements
- Hazard communication for chemicals
- Respiratory protection for asbestos
Correct answer: Fall protection for elevated work locations
Section (l) of OSHA 1910.269 covers working position and fall protection requirements for workers on poles, towers, and other elevated structures.
Question 4: A lineman's rubber insulating gloves must be electrically tested at what minimum interval when in service?
- Every 6 months (Correct answer)
- Every 12 months
- Every 3 months
- Every 24 months
Correct answer: Every 6 months
OSHA 1910.137 and ASTM F496 require in-service rubber insulating gloves to be retested at intervals not exceeding 6 months.
Question 5: When working on a distribution system, a crew switches a line segment to de-energized status. Who is authorized to remove the crew's personal protective ground?
- Only the crew member who installed it, or a designated crew leader (Correct answer)
- Any qualified lineman on site
- The control room dispatcher
- The foreman at the next substation
Correct answer: Only the crew member who installed it, or a designated crew leader
Personal protective grounds must be removed by the worker who installed them, or by the designated employee who controls the ground set, to ensure accountability.
Question 6: Which NFPA standard specifically addresses electrical safety in the workplace (as opposed to the electrical code for building wiring)?
- NFPA 70E (Correct answer)
- NFPA 70 (NEC)
- NFPA 101
- NFPA 72
Correct answer: NFPA 70E
NFPA 70E covers electrical safety requirements for employee workplaces, including arc-flash risk assessment and PPE selection.
Question 7: A foreman observes a laborer using a metal ladder to access a work area near energized overhead lines. What is the correct action?
- Stop the work immediately and replace the metal ladder with a non-conductive one (Correct answer)
- Continue work but have the laborer wear rubber gloves
- Lower the ladder to increase the approach distance
- Report the condition to OSHA before taking action
Correct answer: Stop the work immediately and replace the metal ladder with a non-conductive one
Metal ladders are conductive and prohibited near energized electrical equipment; non-conductive (fiberglass) ladders must be used in such environments.
Lineman Safety Regulations and Compliance 3
Under OSHA 1910.269, a qualified electrical worker is defined as someone who has training in which of the following?