Guest StephenT Posted July 15, 2017 Report Share Posted July 15, 2017 Is there a correct abbreviation or specific way to identify in writing a joint/combined manual and automated fire alarm system. For example ML3 or L5N? Thank you Quote Link to comment Share on other sites More sharing options...
AnthonyB Posted July 16, 2017 Report Share Posted July 16, 2017 The following category combinations exist: M - Manual (Call points & sounders). L5 - Life Risk specific detection (no call points, sometimes no sounders) L5/M - Life Risk specific detection (with call points and sounders) L4 - Escape route detection L3 - As L4 plus rooms opening onto escape routes L2 - As L3 plus risk specific additional areas L1 - Everywhere (almost!) L1 to L4 do not require the /M suffix as they MUST always include call points and sounders P2 - Property risk specific detection (must be monitored, longer standby times, no call points, may have no or limited sounders) P1 - Property protection detection everywhere (almost - also must be monitored, longer standby times, no call points, may have no or limited sounders) P2/M & P1/M Property protection systems also incorporating call points and sounders to meet the minimum life safety requirements You can also mix P & L systems such as P2/L4 which would be a building with manual call points and sounders, escape route detection for life safety and then some additional detection for a property protection purpose along with remote monitoring. Quote Link to comment Share on other sites More sharing options...
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