ANSWERS SURE A+
✔✔Casual factors are the conditions that produced or contributed to the occurrence of
the incident. What's are the 3 factors? - ✔✔Direct cause, contributing cause, and root
cause.
✔✔As per CAN/ULC S801, on an electrical distribution overhead utility line circuit,
verification of voltage absence can be achieved by: - ✔✔Using an approved voltage
detector.
✔✔Isolation and tagging (no locks) is acceptable on an overhead distribution circuit
under some of the following conditions, EXCEPT for: - ✔✔The isolation can be operated
from the ground directly at the base of a structure.
✔✔Isolation and tagging (no locks) is acceptable for an overhead distribution circuit
under some of the following conditions: - ✔✔1. The isolation point is a physical and
visual like a line cut or riser removed.
2. The isolation point can only be operated by the operating authority or qualified
worker.
3. The isolation point is protected from unauthorized access such as vertical height
spacing.
✔✔Consider that a circuit has been isolated, tagged and grounded. workers returning
the next day must: - ✔✔Visually check grounds to verify they are in good order, secure
and test for voltage.
✔✔For lockout purposes, energy isolating devices shall be labelled or marked using a
standardized nomenclature and format to indicate their function. Identification shall
include: - ✔✔The equipment type, energy type, and magnitude.
,✔✔Utilities often use a permitting system due to special circumstances of which
conventional lockout is impracticable. The following is NOT a justified approach to this
process: - ✔✔The isolation points are only simple single step actions.
✔✔A high voltage utility or electrical company is authorized to use Complex Lockout
(tag permitting) under what regulatory condition: - ✔✔A variance application has been
approved by the provincial authority.
✔✔Utilities often use a permitting system due to special circumstances of which
conventional lockout is impracticable. The following are justified approaches to this
process: - ✔✔1. The isolation points are located in remote areas with difficult or
restricted access.
2. The length of time to perform the lockout is impracticable.
3. Excessive numbers of persons required to lockout.
✔✔Work on a distribution line must consider the following items when performing
isolation and de-energizing of the circuit.: - ✔✔1. Whether there are multiple sources of
energy (loop feed) on the circuit.
2. Is the line isolating device capable of interrupting load.
3. Is the line to be subject to inductive or capacitive charge.
✔✔According to the CAN/ULC S801, what is the LEAST DESIRABLE type of fall
protection: - ✔✔Fall Arrest System (FAS)
✔✔Within Z259.14 standards fall restriction equipment (FRE) may only be leather in
subcomponents or elements that are NOT exposed to: - ✔✔A dynamic load.
✔✔As per Z259 standards, energy absorbing lanyards shall be classified according to
their ability to absorb the kinetic energy from a fall as follows: - ✔✔Class E4 (4.0 kN)
and Class E6 (6.0 kN) energy absorbing lanyards.
✔✔Assuming that the fall protection system is correctly being used, in what scenario
might the worker still contact the ground if they fell: - ✔✔Working 16 feet up in a bucket
truck on distribution secondary services using a six foot shock absorbing lanyard,
connected to the approved bucket anchor.
✔✔What is NOT defined as a requirement of temporary vertical life lines as per Z259
standards: - ✔✔100% polypropylene fibers provide the greatest breaking strength.
✔✔Requirements of temporary vertical life lines, as per Z259 standards: - ✔✔1. Shall
be made from synthetic fibers with breaking strength of 27 kN or greater.
2. They shall be free of splices and knots, except at the terminations.
3. They shall be installed to protect against abrasion and sharp edges.
, ✔✔Working on an energized lattice tower requires emergency response consistent with
the associated hazards. What is NOT required as part of the emergency planning: -
✔✔Daily practice of tower rescue method.
✔✔Working on an energized lattice tower requires emergency response consistent with
the associated hazards, including: - ✔✔1. A means to contact the operating authority to
de-energize the circuit.
2. Rescue equipment readily available to quickly and safely lower the worker.
3. Regular rescue practices on tower rescue at an appropriate frequency.
✔✔Z259.14 wooden pole choker devices that are designed and tested to restrict a
workers fall distance under dry, wet, and icy conditions are classified as: - ✔✔Type AB
device.
✔✔The voltage limits and mechanical strength of a live line tool is best specified by: -
✔✔The manufacturers requirements.
✔✔Live line tools can be modified to meet the needs of the work. What is NOT an
acceptable strategy for tool modification: - ✔✔A utility worker has evaluated the tool
modification and approved the change.
✔✔Live line tools can be modified to meet the needs of the work. Acceptable strategies
for tool modification include: - ✔✔1. Changes to the tool do not violate other applicable
standards.
2. The tool has been inspected and tested by a professional engineer.
3. The tool modification was approved by an engineer using applicable standards.
✔✔Insulating hot rope (live line rope) is tested in accordance to ASTM F1701. The
purpose of this test is to: - ✔✔Determine the current leakage under dry and wet rope
conditions.
✔✔Live line rigid cover in compliance with CAN/ULC-61229 includes the following
pieces or protective insulating equipment EXCEPT for: - ✔✔Insulating line hose.
✔✔Live line rigid cover in compliance with CAN/ULC-61229 includes the following
pieces or protective insulating equipment, including: - ✔✔1. Conductor cover (air
guard).
2. Pole guard.
3. Switch and insulator shields.