The fire alarm code BS5839-1:2002 introduced more onerous requirements for the types of cables used in fire detection and alarm systems.
Fire resistance cables should now be used for all parts of the fire system and enhanced fire resistance cables should be used where there is a requirement to ensure cable integrity over a longer period of
time.
For example when connecting to fire alarm sounders or where
the connection between sub-panels provides any part of the alarm
signal path.
Fire alarm wiring should be segregated from the cables of other
systems; they should be clearly marked, preferably red in colour
and should be installed through parts of the building that provide
minimum risk or maximum protection. This latter point is particularly relevant where the use of the building is being changed - for example if a fuel store is being moved.
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