National Academies Press: OpenBook

Assessing and Mitigating Electrical Fires on Transit Vehicles (2021)

Chapter: Appendix B Vehicle Manufacturer Questionnaire

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Page 47
Suggested Citation:"Appendix B Vehicle Manufacturer Questionnaire." National Academies of Sciences, Engineering, and Medicine. 2021. Assessing and Mitigating Electrical Fires on Transit Vehicles. Washington, DC: The National Academies Press. doi: 10.17226/26288.
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Page 47
Page 48
Suggested Citation:"Appendix B Vehicle Manufacturer Questionnaire." National Academies of Sciences, Engineering, and Medicine. 2021. Assessing and Mitigating Electrical Fires on Transit Vehicles. Washington, DC: The National Academies Press. doi: 10.17226/26288.
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Page 48

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47 Appendix B Vehicle Manufacturer Questionnaire TCRP Project C-23 Assessing and Mitigating Electrical Fires on Transit Vehicles Name & Title:_________________________________ Manufacturer Name:___________________________ Contact email:_________________________________ Diesel/CNG/hybrid EV/Battery What portion of new buses are ordered with fire suppression system installed? _______% _______% Over the last three (3) years, how many buses/vehicles have you delivered with fire suppression systems installed? ________ ________ What is the primary reason for fire suppression installation? (select only one) Customer request Regulatory requirement Bus manufacturer recommendation/requirement Other Customer request Regulatory requirement Bus manufacturer recommendation/requirement Other Please list the name of the fire suppression manufacturers you use __________________ __________________ __________________ __________________ __________________ ______________________ ______________________ ______________________ ______________________ ______________________ Do you recommend a specific fire suppression system manufacturer? Yes _______________ No Yes _______________ No Have you tested the fire suppression system you use? Yes No Don’t know We rely on testing by someone else Yes No Don’t know We rely on testing by someone else Do you know of any fires in a vehicle equipped with fire suppression system? Yes No Don’t know Yes No Don’t know

48 What is the active agent used in your system? (select all that apply) Water Dry chemical Vapor Foam Don’t know Water Dry chemical Vapor Foam Don’t know What fire Sensor Types used? (select all that apply) Optical Linear Other _____ Optical Linear Other _____ Where are the fire sensor(s) located? (select all that apply) Engine Compartment Wheel Well Exhaust area Fuel Tank Area Other_______ “Engine” compartment Wheel Well Battery Compartment(s) Motor Motor Controller (if separate) Other _____ Where are the nozzles located? (select all that apply) Engine Compartment Wheel Well Exhaust area Fuel Tank Area Other_______ “Engine” compartment Wheel Well Battery Compartment(s) Motor Motor Controller (if separate) Other _____ Does the fire suppression system disconnect the battery/power source? Yes (24V system) No Don’t know Yes (24 V system) Yes (HV system) No Don’t know What is the approximate upfront cost and annual maintenance cost per vehicle? Purchase cost $________/ Maintenance cost $_______/yr Don’t know Purchase cost $________/ Maintenance cost $_______/yr Don’t know

Next: Appendix C Fire Suppression Manufacturer Questionnaire »
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Transit vehicle fires have safety implications for passengers and employees as well as liability implications for manufacturers, suppliers, and operators. Many of the electrical/arcing fire events experienced in the transit industry have led to a total loss of the vehicle and/or serious smoke incidents.

The TRB Transit Cooperative Research Program's pre-publication draft of TCRP Research Report 229: Assessing and Mitigating Electrical Fires on Transit Vehicles provides transit systems with information and techniques to avoid the interruption of revenue service, passenger injuries, and expenditures of operating and capital funds that occur as the result of fires on transit buses and rail vehicles.

Supplemental to the report is a Presentation describing details of the project.

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