NFPA-17A wet Chem systems. 4.4.3.5 In short, anything under the hood needs to shut down, Gas and electric.Gas must be shut down BEFORE the agent enters the hood, this can be electric or mechanical shut down. All shut downs must require MANUAL resets after discharge.
The hood exhaust is not required to shut down. However NFPA 96 (As we have visited before,Reno ) also addresses the EF issue. In 17A I saw no reference to '96'.
)
