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Questions and Answers
What should be done when an IDLH atmosphere is identified?
What should be done when an IDLH atmosphere is identified?
- Increase resources for a structure fire response (correct)
- Ventilate the area immediately
- Shut down the electric panel from the exterior of the involved structure
- Evacuate all occupants from the danger area
What should be done to all ignition sources in a hazardous area?
What should be done to all ignition sources in a hazardous area?
- Turn on all intrinsically safe equipment
- Eliminate all electric switches
- Secure the generator
- Eliminate by manual controls (correct)
What should be considered when entering a gaseous atmosphere?
What should be considered when entering a gaseous atmosphere?
- Potential ignition sources (correct)
- Shutting down the power to a structure
- More than one meter serving the single-family dwelling
- Auxiliary generators
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Study Notes
- When an IDLH atmosphere is identified, an initial RIT shall be identified and consideration shall be given to increasing resources for a structure fire response.
- When concentrations are the highest, ventilation should be started immediately.
- All intrinsically safe equipment should be turned on prior to entering a gaseous atmosphere.
- In large homes, crews should also be cognizant of the possibility that more than one meter could be serving the single-family dwelling.
- All occupants shall be evacuated from the danger area.
- All ignition sources shall be eliminated by manual controls.
- No electric switches shall be operated in the hazard area.
- Where possible electric service shall be controlled and shut down from the exterior of the involved structure.
- Consideration must be given to a potential ignition source being an auxiliary generator.
- If the power to a structure is shut off at the electric panel this action may cause the generator to operate.
- Secure the generator prior to operating the electric panel.
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