13-EHS section 3 Flashcards
According to the Electrical Safety Hand Book, What type of safety vests should emergency responders wear to ensure visibility during emergency response?
a. OSHA-approved b. High visibility CSA or ANSI-approved c. Standard issue d. Reflective vests only
B
For this reason, high visibility CSA or ANSI approved safety vests, or equivalent, should be worn by emergency responders, and high visibility reflective equipment
According to the Electrical Safety Hand Book, Why should emergency responders not depend on electrically shock-resistant footwear for electrical shock protection?
a. They are uncomfortable b. They lose effectiveness over time c. The electrical resistivity of the sole can be degraded d. They are not readily available
C
Footwear (boots and shoes) that is electrically shock resistive must not be depended upon to provide electrical shock protection. Due to the nature of emergency responders work, the
electrical resistivity of the sole can be severely degraded.
According to the Electrical Safety Hand Book, What is recommended to warn drivers about potential traffic hazards when emergency responders are present?
a. Sirens only b. Reflective equipment and safety vests c. Emergency lights only d. Hand signals
B
For this reason, high visibility CSA or ANSI approved safety vests, or equivalent, should be worn by emergency responders, and high visibility reflective equipment (signs, flares,etc)
According to the Electrical Safety Hand Book, How should ground gradient control mats be used to avoid injury from step and touch potential?
a. Place the mat under the vehicle b. Connect the mat cable clamp to the ground c. Hop with both feet together when leaving the mat d. Use the shuttle step to move towards the vehicle
C
1. place the mat on the ground in front of the control panel,
2. place both feet on the mat, and
3. connect the ground mat cable clamp to the vehicle. Standard response protective clothing for ire lighters, police and paramedics, while mandatory for emergency response, does not provide any protection against electrical contact hazards. Footwear (boots and shoes) that is electrically shock resistive must not be depended upon to provide electrical shock protection. Due to the nature of emergency responders work, the electrical resistivity of the sole can be severely degraded.
etc.) should be used to warn drivers.
Follow your organization’s requirement for high visibility clothing to ensure that you are clearly visible. Be mindful of the flammability of your clothing and vest in an area with an electrical hazard.The operator must keep both feet on the operating platform or the ground gradient mat while operating the aerial equipment until the operation has been successfully completed and the ground mat connection removed. If the operator must leave the ground gradient mat, while in close proximity to power lines, he/she must hop with both feet together from the mat. Use the shuffle step to move 10 meters (33t) away from the vehicle. To get back on to the mat reverse the above procedure
According to the Electrical Safety Hand Book, Why must ladders and stretchers be kept well away from downed power lines?
a. They conduct electricity b. They are too long c. They are flammable d. They can create step and touch potential hazards
D
Ladders and stretchers, due to their length, can present significant “step and touch potential” hazards and must be kept well away from downed power lines.
According to the Electrical Safety Hand Book, What type of portable generators is recommended for use during firefighting or rescue operations?
a. Non-bonded neutral b. Bonded neutral c. Gas-powered d. Diesel-powered
B
Portable Generators should be of the bonded neutral type (bonded to frame neutral). In bonded neutral generators the neutral wire is
bonded to the generator frame.
According to the Electrical Safety Hand Book, Which type of emergency responder clothing provides electrical arc flash protection?
a. Standard firefighter bunker gear b. Paramedic protective vests c. Police protective vests d. Reflective vests
A
Standard fire fighter bunker gear is
designed to withstand heat and ire and will provide electrical arc lash protection. Fire fighters entering these areas to assist with rescue must wear full bunker gear to ensure their own safety.
According to the Electrical Safety Hand Book, n close proximity to power lines, how should an operator move away from the ground gradient mat?
a. Walk normally b. Hop with both feet together c. Run quickly d. Crawl on hands and knees
B
If the operator must leave the ground gradient mat, while in close proximity to power lines, he/she must hop with both feet together from the mat. Use the shuffle step to move 10 meters (
According to the Electrical Safety Hand Book, Why should emergency responders be cautious about the equipment they carry into areas with open energized equipment?
a. To avoid fatigue b. To prevent tripping c. Equipment may conduct electricity and cause injury d. Equipment may get damaged
C
Whenever emergency responders enter
any area containing open energised equipment (electrical vaults, substations, or generating stations), they need to be aware of the equipment they are carrying. This equipment may create an arcing situation or if contacted, create a path to ground and cause the responder serious injury or death
According to the Electrical Safety Hand Book, What is recommended when entering electrically hazardous areas?
a. Keep all equipment on at all times b. Remove all equipment to avoid hazards c. Consult with local electrical utility personnel d. Use equipment without checking its condition
C
Items such as these should be removed
in a safe area and only nonconductive items should be taken into electrically hazardous areas. Be aware of your environment. Removing various equipment may not be possible due to the situation encountered (i.e. ire). It is also recommended that whenever possible, local electrical utility personnel either accompany emergency responders or at a minimum provide safety instructions about the area being entered
- According to the Electrical Safety Hand Book, What is the purpose of having a GFCI in wet or outdoor applications?a. To provide electrical power
b. To protect against electrical shocks
c. To increase equipment efficiency
d. To reduce generator noise
B
No mater which power source you use, plug into a GFCI for wet or outdoor applications to protect the people using electrical equipment plugged into it. A GFCI is not dependent on a ground connection. If the electrical device you are using is not directly plugged into the generator or power source containing a GFCI, then the tool should be plugged into a GFCI device at the end of the extension cord. This is an OHSA requirement
According to the Electrical Safety Hand Book,
What is the primary consideration when using mounted power inverters and generators?
a. Fuel efficiency b. Ease of operation c. Bonding to the vehicle frame d. Exhaust temperature
C
Mounted power inverters and generators must be bonded to the vehicle frame and all supply circuits from the generator must be protected by ground fault circuit interrupters (GFCI
According to the Electrical Safety Hand Book, How can electrical contact injuries be avoided when using portable generators and extension cords?
a. Avoid using extension cords b. Ensure the generator is not bonded to the frame c. Use non-compliant extension cords d. Use bonded neutral generators and compliant extension cords
D
The use of a bonded neutral type portable generator, in combination with extension cords fitted and approved for wet environments, reduces the need for use of the two ground rods and grounding wire with the portable generator
According to the Electrical Safety Hand Book, What is a key safety measure when operating aerial equipment near live electrical power lines?
a. Use non-compliant extension cords b. Operate controls from the ground c. Keep one foot on the ground at all times d. Utilize a ground gradient control mat
D
To avoid injury from step and touch potential, use a portable ground gradient control mat when operating an aerial device near live electrical power lines when the controls are operated from the ground or where the operation is guided from the ground. For dual purpose vehicles such as combination pumper-aerial, the pump controls must be operated while standing either on a platform supplied and attached to the vehicle or while standing on a ground gradient control mat bonded to the
vehicle.
According to the Electrical Safety Hand Book, In what situations should emergency responders wear full bunker gear for electrical arc flash protection?
a. In all emergency situations b. Only during firefighting operations c. Only during rescue operations d. When entering areas with open energized parts
D
Clothing worn by paramedics and police including protective vests, do not provide electrical arc lash protection. For this reason these emergency responders should not enter areas such as substations, electrical vaults or any areas containing open energised parts. Standard ire fighter bunker gear is designed to withstand heat and ire and will provide electrical arc lash protection. Fire fighters entering these areas to assist with rescue must wear full bunker gear to ensure their own safety.
