Utility Line Clearance Flashcards
7 cards from real Certified Arborist Test practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Utility Line Clearance flashcards as text
Which ANSI standard provides specifications for utility line clearance pruning?
Answer: ANSI A300 Part 7
ANSI A300 Part 7 specifically addresses utility line clearance and provides standards for pruning trees near utility lines.
Which pruning technique is preferred by ISA standards when pruning trees near utility lines?
Answer: Directional pruning
Directional pruning redirects growth toward lateral branches growing away from conductors while maintaining tree structure and health.
What does 'minimum approach distance' (MAD) refer to in utility line clearance work?
Answer: The closest distance a worker may approach energized conductors
Minimum approach distance (MAD) is the closest distance a qualified line clearance worker may approach energized electrical conductors without appropriate insulation.
Which regulation sets safety standards for line clearance arborists working near energized utility conductors?
Answer: OSHA 29 CFR 1910.269
OSHA 29 CFR 1910.269 (Electric Power Generation, Transmission, and Distribution) sets enforceable safety standards for line clearance operations near energized conductors.
What defines a 'qualified line clearance arborist'?
Answer: A worker trained to recognize electrical hazards and maintain safe approach distances
A qualified line clearance arborist is specifically trained to recognize electrical hazards, understand minimum approach distances, and work safely near energized conductors.
Why is topping (hat-racking) particularly problematic when managing trees near utility lines?
Answer: It leaves large stubs that decay and produce rapid watersprout regrowth
Topping leaves large stubs that cannot seal properly, promoting decay and vigorous watersprout growth that re-encroaches on lines faster than before.
Which term describes the legal area granted to utility companies to manage vegetation near power lines?
Answer: Right-of-way
The right-of-way is the legal designation granting utility companies authority to manage vegetation within a defined area to maintain safe clearance from power lines.