CTSP Electrical Hazards and Utility Line Safety 1

Question 1

Which ANSI standard specifically addresses safety requirements for arboricultural operations, including work near energized electrical conductors?

Accepted Answer

ANSI Z133

Answer

ANSI Z133 is the American National Standard for Arboricultural Operations and covers safety requirements including proximity to electrical conductors.

Question 2

What is the minimum approach distance that unqualified workers must maintain from energized overhead electrical lines up to 50kV?

Accepted Answer

10 feet (3.05 m)

Answer

OSHA regulations require unqualified workers to maintain at least 10 feet from energized conductors rated up to 50kV.

Question 3

Which phenomenon describes the voltage difference between two ground contact points at different distances from a downed energized conductor, creating a shock hazard when walking?

Accepted Answer

Step potential

Answer

Step potential is the voltage gradient along the ground surface radiating from an energized source; current can flow up one leg and down the other if a person's feet are at different potentials.

Question 4

A 'qualified line-clearance arborist' is primarily distinguished from an unqualified worker by having:

Accepted Answer

Training allowing work within the limited approach boundary of energized conductors

Answer

A qualified line-clearance arborist has received specific training and demonstrated the ability to work safely within the approach boundaries of energized conductors.

Question 5

Which type of rope is required when performing rigging operations in close proximity to energized electrical conductors?

Accepted Answer

A dielectrically tested rope with low moisture absorption

Answer

Ropes used near energized conductors must be dielectrically tested and have low moisture absorption to prevent them from becoming conductive pathways.

CTSP - Certified Treecare Safety Professional Practice Test

CTSP - Certified Treecare Safety Professional Practice Test

CTSP Electrical Hazards and Utility Line Safety 1