Electrical Safety Emergency Response Quiz

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Questions and Answers

What should be done before spraying water onto electrical equipment?

Spray water onto the equipment immediately

Use a high-pressure water hose

Spray directly into the power lines

Confirm with a utility representative that the equipment is deenergized (correct)

What is the potential danger of spraying water directly onto power lines?

It may cause a short circuit

The hose streams can conduct current (correct)

It can cause the power lines to reset and become hot again

The power lines may explode

What can happen if equipment is not grounded?

It may explode

It can reset and become hot again

It can contain electric potential, which can cause severe injury or death (correct)

It may cause a short circuit

What is the danger associated with power lines and wet ground?

Voltage can travel through both dry and especially wet ground for considerable distances Signup and view all the answers

What is the potential risk of downed power lines?

They must always be considered energized with potentially lethal current Signup and view all the answers

How can power lines become hot or energized again?

By manual operation of a switch, by automatic re-closing methods, by induction, or through back-feed conditions Signup and view all the answers

What is the potential danger associated with PCB hazards?

Smoke is potentially fatal, contain pools of oil around transformers Signup and view all the answers

How can voltage travel to points far from the scene?

Electricity can flow through the ground or other conductive objects Signup and view all the answers

What is the danger associated with pad-mounted and overhead transformers?

They can explode Signup and view all the answers

How can the Thermal Imaging Camera assist in identifying downed power lines?

By deploying it in Search and Rescue mode Signup and view all the answers

What is the primary policy of the Cleveland Division of Fire in response to reports of power lines down and other hazards involving energized electrical equipment?

To ensure the safety of the public and respond for fire control Signup and view all the answers

What is the responsibility of the company officer in dealing with electrical emergencies?

Maintain a high degree of safety for their crew and the public Signup and view all the answers

What are the potential causes of power lines coming into contact with the ground?

Weather related events, fire, or vehicles striking a power pole Signup and view all the answers

What must be considered in all cases involving power lines down and other incidents with energized electrical equipment?

The potential for electrical shock/electrocution and fire Signup and view all the answers

What is emphasized in the section about electrical safety awareness?

Electricity will travel through any conductive path available to seek ground Signup and view all the answers

What is mentioned as a potential direct path to ground in the context of electrical safety awareness?

Contact between something that is electrically energized and a portion of your body Signup and view all the answers

What is included in the potential path for electricity seeking ground?

Tools or other equipment you may be using Signup and view all the answers

What should be considered when coming into contact with a fence, vehicle, or other object in the context of electrical safety awareness?

That the object has become energized Signup and view all the answers

What is the primary purpose of the mentioned Standard Operating Procedure (SOP)?

To establish the response and approach procedures to electrical emergencies Signup and view all the answers

What is the role of the electrical utility company (CEI/CPP) in dealing with electrical emergencies according to the SOP?

To be contacted for assistance Signup and view all the answers

What should personnel do when downed power lines and vehicles are involved?

Instruct occupants to jump free of the vehicle without touching the vehicle and ground at the same time Signup and view all the answers

What action should be taken in the event of sub-station, transformer, electrical vault, and manhole fires?

Clear the area and protect exposures Signup and view all the answers

What should be done before making entry into a substation or vault?

Ensure the electrical equipment has been de-energized Signup and view all the answers

What action should be taken when an electrical emergency is present in a building?

Disconnect the power at the main breaker Signup and view all the answers

What should be used when rescue is necessary near electrical equipment and the power status is unconfirmed?

CO2 or dry chemical extinguisher Signup and view all the answers

What should be done to power pole fires before making a direct fire attack?

Request utility company response and do not make a direct fire attack until the electrical equipment has been de-energized Signup and view all the answers

What should be done if wooden fences are exposed to high voltage, especially when wet?

Consider them as potentially energized Signup and view all the answers

What should be used to shut off power from solar PV systems?

Operating disconnecting devices or contacting the local electrical utility Signup and view all the answers

What should be done if communication/data lines create a public hazard?

Notify Fire Dispatch and request Cleveland Police for traffic control Signup and view all the answers

What danger is created by downed power lines energizing the ground around them?

Step potential danger Signup and view all the answers

Study Notes

Electrical Safety Procedures for Emergency Response

Wooden fences can become energized when exposed to high voltage, especially when wet
Downed power lines can energize the ground around them, creating a step potential danger
Personnel must assess the scene to determine if the downed line is electrical or data/communications
Request utility company response for downed power lines and vehicles
Instruct occupants to jump free of the vehicle without touching the vehicle and ground at the same time in the event of downed power lines and vehicles
Clear the area and protect exposures in the event of sub-station, transformer, electrical vault, and manhole fires
Do not make entry into a substation or vault until the electrical equipment has been de-energized
Request utility company response for power pole fires and do not make a direct fire attack until the electrical equipment has been de-energized
Notify Fire Dispatch about communication/data lines and request Cleveland Police for traffic control if the lines create a public hazard
When an electrical emergency is present in a building, the power shall be disconnected at the main breaker
Use a CO2 or dry chemical extinguisher when rescue is necessary near electrical equipment and the power status is unconfirmed
Operating disconnecting devices or contacting the local electrical utility to disconnect power from the grid does not shut off power from solar PV systems

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Description

Test your knowledge of electrical safety procedures for emergency response with this quiz. Learn about the dangers of downed power lines, substation and transformer fires, and how to assess and manage electrical emergencies to ensure the safety of personnel and the public.