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Follow SOPs for vehicle response
…and, pay attention to
the unique items for
hydrogen-powered fuel
cell electric vehicles

Scene Size-Up

Identify

Isolate

Rescue

Wrap Up
Identify
Typically decals and graphics
identifying car as an FCEV
Blue diamond sticker on rear- SAE
example (no standards, yet)
Never assume the vehicle is off

Scene Size-Up

Identify
Identify
H2 release indicators
Compressed H2

Very loud hissing (almost all
leaks will be audible)
PRD/TRD release  controlled
high-pressure hydrogen rapid
release through safety vent

• Occurs if tanks are exposed to
high-temperature heat (e.g. – fire)

Never cut into hydrogen lines

Scene Size-Up

Identify
High-voltage systems
Never cut into highvoltage systems

• Designed to quickly dissipate
•

charge in lines
Charge can be retained when
system is off

Lines are marked orange

Scene Size-Up

Identify
Isolate
Multiple vehicles and different fuels

Isolate

FCEVs are heavier than conventional vehicles
When safe, move the conventional vehicle away
from the FCEV

• Heat from gas fire can trigger TRD/PRD
Spray foam on gasoline or diesel leaks near FCEV

• Let hydrogen fed fires burn out if safe to do so
Rescue: extrication
Avoid the PRD/TRD vent
Stabilize & disable
Follow any “Emergency/
Manual Shut Down” procedure
Dash roll: Avoid using cutters or
spreaders on rocker panel--

• Hydrogen and/or high voltage lines
may be present

Rescue
Extrication
Dash roll: for a purchase
point on the rocker panel…

• Cradle or saddle
• Notch the rocker panel
Relief cut OK

• Bottom of A post
• Between hinges
Avoid cutting through
underside of vehicle

Rescue
Rescue: fires
Let a hydrogen flame
or plume burn

• Fire will extinguish when
fuel is gone

Cover exposures
Use standard
suppression
techniques for all nonhydrogen fed fires

Rescue
Emergency response
Fire response: (as with natural gas)

• Vehicle: Let a hydrogen plume burn
• Station: shut off the flow of gas; let all hydrogen burn itself off*
• *recommend dry powder extinguisher if the hydrogen flame must be extinguished

• Cool/protect other exposures

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Vehicle Response

  • 1. Follow SOPs for vehicle response …and, pay attention to the unique items for hydrogen-powered fuel cell electric vehicles Scene Size-Up Identify Isolate Rescue Wrap Up
  • 2. Identify Typically decals and graphics identifying car as an FCEV Blue diamond sticker on rear- SAE example (no standards, yet) Never assume the vehicle is off Scene Size-Up Identify
  • 4. H2 release indicators Compressed H2 Very loud hissing (almost all leaks will be audible) PRD/TRD release  controlled high-pressure hydrogen rapid release through safety vent • Occurs if tanks are exposed to high-temperature heat (e.g. – fire) Never cut into hydrogen lines Scene Size-Up Identify
  • 5. High-voltage systems Never cut into highvoltage systems • Designed to quickly dissipate • charge in lines Charge can be retained when system is off Lines are marked orange Scene Size-Up Identify
  • 6. Isolate Multiple vehicles and different fuels Isolate FCEVs are heavier than conventional vehicles When safe, move the conventional vehicle away from the FCEV • Heat from gas fire can trigger TRD/PRD Spray foam on gasoline or diesel leaks near FCEV • Let hydrogen fed fires burn out if safe to do so
  • 7. Rescue: extrication Avoid the PRD/TRD vent Stabilize & disable Follow any “Emergency/ Manual Shut Down” procedure Dash roll: Avoid using cutters or spreaders on rocker panel-- • Hydrogen and/or high voltage lines may be present Rescue
  • 8. Extrication Dash roll: for a purchase point on the rocker panel… • Cradle or saddle • Notch the rocker panel Relief cut OK • Bottom of A post • Between hinges Avoid cutting through underside of vehicle Rescue
  • 9. Rescue: fires Let a hydrogen flame or plume burn • Fire will extinguish when fuel is gone Cover exposures Use standard suppression techniques for all nonhydrogen fed fires Rescue
  • 10. Emergency response Fire response: (as with natural gas) • Vehicle: Let a hydrogen plume burn • Station: shut off the flow of gas; let all hydrogen burn itself off* • *recommend dry powder extinguisher if the hydrogen flame must be extinguished • Cool/protect other exposures