Is a fire suppression system required on rail-mounted fuel cars (towed vehicle) with no electrical system?
A. Rail-mounted fuel cars that have no electrical components would not be required to be equipped with a fire suppression system. However, 75.1906(g) provides that non-self-propelled diesel fuel transportation units with electrical components for dispensing fuel that are connected to a source of electrical power must be protected by a fire suppression device that meets the requirements of 75.1107-3 through 75.1107-6 and 75.1107-8 through 75.1107-16. Additionally, if a diesel-powered vehicle is towing the fuel cars, it would be considered heavy-duty equipment and would be required under 75.1911(h) to have an automatic fire suppression system. Q. Section 75.1911(a)(4) requires discharge nozzles on fire suppression systems to be protected against the entrance of foreign materials such as mud, coal dust, or rock dust. Can nozzles be protected by their location and/or orientation? A. This is a performance-oriented requirement, and in some cases the location or orientation of nozzles will pr
