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FIRE SERVICE AND GENERAL FIRE SAFETY TOPICS => Fire Safety => Topic started by: Wils on April 28, 2022, 03:33:19 PM

Title: Converting fire detection - P system to L system
Post by: Wils on April 28, 2022, 03:33:19 PM

Hi folks. Easy question for the fire alarm experts. What needs to be done to convert a P1 system to an L1 system and how easy is it? Thanks in advance.

Title: Re: Converting fire detection - P system to L system
Post by: Dinnertime Dave on April 28, 2022, 06:21:35 PM

Sounders might be a good start 

 :D

Title: Re: Converting fire detection - P system to L system
Post by: AnthonyB on April 28, 2022, 06:59:00 PM

Call points & sounders as per a Category M system, making it a P1/M system as per BS5839. If you wanted it to be L1 you would reduce the battery capacity of the panel and dump the ARC link and any external strobes.

Detector position should already be identical in both L1 & P1, the main differences are monitoring, standby duration with no mains and the provision of call points and sounders.

If it's already P1/M then you are in theory already exceeding the spec of an L1 system so you don't need to change anything.

 

Title: Re: Converting fire detection - P system to L system
Post by: Wils on April 29, 2022, 03:18:15 AM

Thanks very much, guys. Much appreciated. 😊