Hi, the 'D' stands for domestic and is only used on non-commercial systems [or detectors], the British Standard for this is BS5839-6 and this is for domestic premises. It [BS5839-6] is a very wide ranging standard and covers the cheaper domestic detectors you can buy off the shelf in B&Q, right through to systems that you would normally find in a commercial premises like and office or factory.
Hi Mike, There isn't a category of fire alarm called 'L1X' or similar. What's the context of this so we can try to determine what you need help with?/Where did you hear this? Kind regards, Verity Head of Comms at WFP
Clear and super easy to understand
Thank you for saying so, it’s been a few years since I made that video and I’m pleased to see it’s still relevant today.
What a great video thank you
I’m glad to hear that it’s helped you and thank you for taking the time to comment.
Glad you enjoyed it
Thankyou for explaining that so clearly
Thank you for your comment Daniel, we’re more than happy to help defining fire alarm design types L1, L2, L3, L4 & L5
Great video, very informative, thank you!
Thank you!
Great work 🔥🔥
Does this still comply to this date or has there been any changes ?
These fire alarm detection levels still apply, thank you for asking!
Great video thanks. Quick question if you don’t mind. What does the d in an Ld2 system mean?
Hi, the 'D' stands for domestic and is only used on non-commercial systems [or detectors], the British Standard for this is BS5839-6 and this is for domestic premises. It [BS5839-6] is a very wide ranging standard and covers the cheaper domestic detectors you can buy off the shelf in B&Q, right through to systems that you would normally find in a commercial premises like and office or factory.
Well done mate hove a good day mate form Greg Bouchard hove
What is the 'x' systems i.e. L1X
Hi Mike,
There isn't a category of fire alarm called 'L1X' or similar. What's the context of this so we can try to determine what you need help with?/Where did you hear this?
Kind regards,
Verity
Head of Comms at WFP