Before commenting on placement of equipment you must always establish how the building has been classified. The Fire system should be designed as per a risk assessment which identifies many aspects one of them the buildings classification for detection design. These are:



  • P1 Designed to primarily protect property (in full)
  • P2 as above but only a subset of the property


  • L1 provides protection throughout the building.
  • L2 is a enhancement on L3 with the addition of high risk areas
  • L3 fire escape routes and rooms leading on to these routes
  • L4 fire escape routes
  • L5 a subset of the building requires automatic detection


  • M – Life safety consisting of only manual call points (MCP’s), Sounders (sounder/Beacons or Beacons) and Panel

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