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Questions and Answers
What is the appropriate way to shut off gas during a leak?
Why should building HVAC systems not be used to ventilate gas from a structure?
What action should be taken if a 1% gas concentration is detected inside a residence?
What should be done with electrical power during a gas leak incident?
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When requesting the gas company to respond, what information is essential to provide?
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What is advised when providing safety for a gas company technician securing a leak?
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Which of the following is a recommended action when evacuating during a gas leak?
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What role can a gas company technician play during a gas leak incident?
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What should be monitored during a gas leak incident to prevent ignition?
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What resource should be consulted for establishing a safety zone during a gas leak incident?
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What is the primary reason for keeping the gas meter cool during structure fires?
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What should be the initial action taken when a gas leak is suspected?
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Who should be utilized as the technical expert during a gas leak situation?
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What should be done if a gas leak occurs due to directional boring?
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How should electrical power be cut during a gas leak incident?
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What is the primary purpose of evacuating structures during a gas leak?
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What should be done if a gas leak is suspected due to directional boring?
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How should firefighters approach structures with flammable gas concentrations?
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What should firefighters use to secure a gas company technician who is addressing a leak?
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What should be monitored to prevent ignition during a gas leak incident?
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Study Notes
Gas Leak Safety Concerns
- Shut off the gas valve closest to the ground whenever possible.
- Keep the gas meter cool during structure fires to prevent it from melting.
- Do not use building HVAC systems to ventilate gas from the structure as this could cause ignition from a spark.
- Approach structures with explosive flammable concentrations of gas from the building’s corners.
- A 1% gas concentration reading inside a residence requires calling the gas company.
Gas Leak Priority Actions
- Evacuate the area, any structures involved, and any deemed exposures.
- Establish a safety zone in accordance with DOT guidebook recommendations.
- Deny public access.
- Request the gas and power company to respond and advise dispatch they should report to the command post.
- Cut electrical power from a transformer or power line, not the junction box inside the residence.
- Cut power to every structure potentially exposed to flammable gas.
Gas Leak Request Information for Dispatch
- Type of occupancies affected.
- Any aerial power line above the affected area.
- If the leak occurred as a result of directional boring, include the type of surface covering the board tunnel (i.e., asphalt, concrete, etc.).
Gas Leak Safety Backing for Technicians
- Provide safety backing for a gas company technician securing a leak with two firefighters in full PPE.
- One firefighter should have a dry chemical extinguisher and the other a 1 ¾ inch hand line on a 30 to 35 degree fog.
Gas Leak Special Considerations
- Use the gas company technician as a technical expert.
- Consider calling law enforcement for evacuations.
- Monitor weather behavior for potential ignition source exposure and gas spread.
Gas Leaks - Safety Concerns
- Shut off gas at the valve closest to the ground when possible
- Keep the gas meter cool during structure fires to prevent melting
- Do not use building HVAC systems to ventilate gas as it may ignite from a spark
- Approach structures with explosive flammable gas concentrations from the corners of the building
- A 1% gas concentration reading warrants calling the gas company
Gas Leaks - Priority Actions
- Evacuate the area and all structures involved, establishing a safety zone according to DOT guidelines
- Request gas and power company response and have technicians report to the command post
- Cut electrical power from the transformer/power line, not the junction box, and cut power to all exposed structures
- When requesting gas company response:
- Advise dispatch of occupancies affected
- Advise dispatch of aerial power lines above the affected area
- In the case of directional boring leaks, advise dispatch of the surface covering the board tunnel
- Provide safety back for gas company technicians with two firefighters in full PPE:
- One with a dry chemical extinguisher
- One with a 1 ¾ inch hand line on a 30 to 35 degree fog
Gas Leaks - Special Considerations
- Use the gas company technician as the technical expert
- Consider calling law enforcement for evacuation
- Monitor weather for ignition source exposure and gas spread
Gas Leak Safety Concerns
- Shut off gas at the valve closest to the ground whenever possible.
- Keep the gas meter cool to prevent it from melting during structure fires.
- Do not use building HVAC systems to ventilate gas from the structure.
- Approach structures with explosive flammable gas concentrations from the corners of the building.
- A 1% gas concentration reading inside a residence warrants calling the gas company.
Gas Leak Priority Actions
- Evacuate all involved structures and any deemed exposures, establish a safety zone according to DOT guidebook recommendations, and deny public entry.
- Request the gas and power company to respond to the scene.
- Cut electrical power from a transformer or power line, not the junction box inside the residence.
- When requesting the gas company, advise dispatch of the following:
- Type of occupancies affected
- If any aerial power lines are above the affected area
- If the leak occurred due to directional boring, include the type of surface covering the board tunnel (e.g., asphalt, concrete).
- Provide safety backup for a gas company technician securing a leak with two firefighters in full PPE. One firefighter should have a dry chemical extinguisher and the other a 1 ¾ inch hand line on a 30 to 35 degree fog.
Gas Leak Special Considerations
- Use the gas company technician as a "technical expert."
- Consider calling law enforcement for evacuation.
- Monitor weather behavior for potential ignition sources and gas spread.
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Description
Test your knowledge on gas leak safety concerns and priority actions in emergency situations. This quiz covers the essential steps to take during a gas leak and the best practices for ensuring safety for yourself and others. Understand the critical information needed for effective dispatch in gas leak scenarios.
