Just come across 230V circuits supplying fire alarm equipment wired in RED FP200 , would this be considered a deviation ?
Just come across 230V circuits supplying fire alarm equipment wired in RED FP200 , would this be considered a deviation ?
Is the cable adequately rated for 230V?
Is FP200 suitable for the environment?
Do the alarm makers instructions insist on something else?
Deviation from what exactly ?
Mike
Common practice for the 230v supply to a FAP!
Is the cable adequately rated for 230V? - Yes
Is FP200 suitable for the environment? - Yes
Do the alarm makers instructions insist on something else? No
Deviation from what exactly ? Bs , codes of practise or just good old good practise
Is 230V present in what some might regard as a ELV fire alarm cable -Yes. Could this be a hazard to someone - possibly
Kev
Yes it seems to be common
Not sure why you think it is unusual, it is a specific requirement to use fire rated/resistant cable to supply fire panels in BS5839.
From a quick google, as I havent got a copy here:
'All mains power supply circuit cabling needs to match the colour of the ELV fire safety system cabling. This is normally red so that it is distinguishable from other electrical circuits.
The LV mains power supply cabling shall be segregated from the ELV fire system cabling so particular attention is needed when entering the item of fire safety system equipment in that it needs to be a separate cable entry to the ELV system cabling.
All cabling needs to be fire resistant and in buildings over 30m in height that aren’t protected by a sprinkler system, or buildings where there is a phased evacuation strategy, the fire resistance of the cable needs to be enhanced from the standard rating of 30 minutes to 120 minutes.'
Agreed the supply cable needs to be fire resistant that's been the case for years, I am not sure about the colour
All fire alarm cables should be of a single, common colour that is not used for
cables of general electrical services in the building, to enable these cables to
be distinguished from those of other circuits.
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