smoke alarm question

[lukesparky123]

hi there can anybody help me out ? im doing a rewire in a property what was one 2 storey house and is now being made into two flats upstairs and down stairs my problem is what do i do with the smoke alarms do i put one in the hallway and kitchen upstairs linked together from the upstairs fuse box and then the same downstairs fed from the downstairs fuse box or do i treat it as one property and link them all together but if i do that which fuse box to a feed from ???
Any help would be great
thanks alot luke​

 

[nikmet]

Why not hard wire them seperately in each flat , but then use radiolink bases to join upstairs and ground floor together?

 

[Octopus]

If they are going to be seperate properties the smoke alarms should be treated accordingly. As for communial areas, I'm not sure.

 

[lukesparky123]

they will be hard wired with battery back up. cant see much point in radio link bases as they are £50.00 pound each and all that is gaining is that the smoke alarms are running from seperate fuse board which i dont think would matter as they dont cost much to run but then i come in to the problem of isolation, upstairs smoke alarms need down stairs fuse board to turn them off. bit of a difficult one

 

[Octopus]

You can't have a circuit from one flat into another and vice versa. Treat each property seperately

 

[lukesparky123]

yer but it is still really one big house but know going to be split in half

 

[nikmet]

Never assume just because they dont cost much to run it doesnt matter, if one flat finds out they are paying ANYTHING towards another flat often they will NOT be happy, leaving you with the job of sorting it out, seperating supplies, at your own cost.........Ouch :-(

 

[paturback]

Two flats = two seperate circuits?

 

[lukesparky123]

yer if i was doing a block of flats the flats would have there own smoke alarms and the corridors would have there own off the land lords supply. But im not doing a block of flats im doing a house what the landlord wants to split upstairs and down stairs so really puzzled what to do because what i dont was if for some one down stairs say burn there dinner and makes the alarm go off which then makes upstairs go off and annoy them ?????????

 

[Octopus]

yer but it is still really one big house but know going to be split in half

How many consumer units are you fitting?

If the answer is 2 then each flat wil need its own smoke/heat alarms. If you're the one signing the EIC, better get it right before the plasterers do theor stuff!!

 

[lukesparky123]

two fed from different credit meters

 

[morph]

is this a genuine question?
are you really considering sharing a circuit between two seperate properties?

hi there can anybody help me out ? im doing a rewire in a property what was one 2 storey house and is now being made into two flats upstairs and down stairs my problem is what do i do with the smoke alarms do i put one in the hallway and kitchen upstairs linked together from the upstairs fuse box and then the same downstairs fed from the downstairs fuse box or do i treat it as one property and link them all together but if i do that which fuse box to a feed from ???
Any help would be great
thanks alot luke​

 

[nikmet]

ask yourself could a fire downstairs prevent the first floor from escaping safely?

 

[Octopus]

two fed from different credit meters

Then each one has its own set of alarms.

Suggest you google Aico!

 

[accordfire]

Um.....two different sets of requirements here.

You're right, of course, that a circuit from one flat cannot go into another, and should be treated separately. You're also right when you say each should have it's own smoke detection.

However......

Said smoke detection DOES need to be interlinked to comply with building regs and other fire safety rules.

So....the way to do it is either with wire free (radio) interlink bases, OR by means of provision of a permanent communal supply - as communal areas also need smoke detection. The caveat is this: if using a communal supply, you CANNOT use 230VAC mains powered smoke detection, as you will be failing to comply with BS7671 - e.g. taking a supply from outside the scope of the consumer unit into that area. You will need to grade the system as BS5839-6, Grade A, Category L2. In this way, you'll use a conventional fire system, rather than just smoke detection.

This precise scanrio is one of the biggest failings in HMOs today - and any building containing more than one family dwelling is an HMO - and they haz rulez, and lots of them.

 

[morph]

it should have a protected means of escape with a proper system plus emergancy lighting,
this sounds like a del boy conversion