CUSP - T&D questions with complete
solutions
As per CAN/ULC S801, on an electrical distribution overhead utility line circuit, verification of
voltage absence can be achieved by: - ** VERIFIED ANSWERS **✔✔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: - ** VERIFIED ANSWERS **✔✔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: - ** VERIFIED ANSWERS **✔✔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:
- ** VERIFIED ANSWERS **✔✔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: - ** VERIFIED
ANSWERS **✔✔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: - ** VERIFIED ANSWERS
**✔✔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: - ** VERIFIED ANSWERS **✔✔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: - ** VERIFIED ANSWERS
**✔✔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.: - ** VERIFIED ANSWERS **✔✔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: - **
VERIFIED ANSWERS **✔✔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: - ** VERIFIED ANSWERS **✔✔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: - ** VERIFIED ANSWERS **✔✔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: - ** VERIFIED ANSWERS **✔✔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: - **
VERIFIED ANSWERS **✔✔100% polypropylene fibers provide the greatest breaking strength.
, Requirements of temporary vertical life lines, as per Z259 standards: - ** VERIFIED ANSWERS
**✔✔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: - ** VERIFIED ANSWERS
**✔✔Daily practice of tower rescue method.
Working on an energized lattice tower requires emergency response consistent with the associated
hazards, including: - ** VERIFIED ANSWERS **✔✔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: - ** VERIFIED ANSWERS **✔✔Type AB device.
The voltage limits and mechanical strength of a live line tool is best specified by: - ** VERIFIED
ANSWERS **✔✔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: - ** VERIFIED ANSWERS **✔✔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: - ** VERIFIED ANSWERS **✔✔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.
solutions
As per CAN/ULC S801, on an electrical distribution overhead utility line circuit, verification of
voltage absence can be achieved by: - ** VERIFIED ANSWERS **✔✔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: - ** VERIFIED ANSWERS **✔✔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: - ** VERIFIED ANSWERS **✔✔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:
- ** VERIFIED ANSWERS **✔✔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: - ** VERIFIED
ANSWERS **✔✔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: - ** VERIFIED ANSWERS
**✔✔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: - ** VERIFIED ANSWERS **✔✔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: - ** VERIFIED ANSWERS
**✔✔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.: - ** VERIFIED ANSWERS **✔✔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: - **
VERIFIED ANSWERS **✔✔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: - ** VERIFIED ANSWERS **✔✔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: - ** VERIFIED ANSWERS **✔✔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: - ** VERIFIED ANSWERS **✔✔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: - **
VERIFIED ANSWERS **✔✔100% polypropylene fibers provide the greatest breaking strength.
, Requirements of temporary vertical life lines, as per Z259 standards: - ** VERIFIED ANSWERS
**✔✔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: - ** VERIFIED ANSWERS
**✔✔Daily practice of tower rescue method.
Working on an energized lattice tower requires emergency response consistent with the associated
hazards, including: - ** VERIFIED ANSWERS **✔✔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: - ** VERIFIED ANSWERS **✔✔Type AB device.
The voltage limits and mechanical strength of a live line tool is best specified by: - ** VERIFIED
ANSWERS **✔✔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: - ** VERIFIED ANSWERS **✔✔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: - ** VERIFIED ANSWERS **✔✔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.
