fire alarm 230v supply

[tazz]

Micc is far superior but we are talking abaut pf200 enhanced there is a difference...Lul now accepts pf200 standard as long as it is enclosed in containment as additional protection

 

[davethsparky]

I shall have to read up on the enhanced version then and see what's so special!

Is it cheaper to put fp200 into conduit than to use micc? And could you use fp100 in the conduit or would that go against the fire alarm standards?

Also does the conduit have to be red? As I said I don't get involved in fire alarms but I've always wondered about that one. I know some places get obsessive about red cables and mini trunking etc whilst other places I've seen the red fp200 clipped in its own compartment of multi compartment white trunking. ( I'm not so daft as to not understand the support with fireproof clips thing)

 

[tazz]

Ok pf100 is fire proof singles idea is to used in containment, fp200 is fire proof with protective cover. As an old designer for lul, micc was to cost us millions, yes it needs supporting as fp200 with fire proof copper clips, but removing old micc off tiled walls which were listed, required cold glazing to repair the screw holes. Very expensive job. LUL now consider all lighting, power , fire and PA be installed within purposed built, and very fancy central running segragated containment. Main idea on colour coding is red for fire, white for data pa, oragne for 230v mains. Conduit itself does no require to be coloured red, but as all cables in commercial use, need to be supported, hence tray or box trunking....if you can imagine a fire in you local supermarket, with cables falling down in a fire condition, would not be a good event. This also goes for plumbing and air conditioning, where pipes now need to be properly supported

 

[davethsparky]

I would imagine the removal of any form of cable from the tiled walls would have caused the same problem though? Or indeed anything at all that was fixed to them.
Sometimes the whole 'listed' thing just gets ridiculous.

 

[tazz]

Totally....now the central purpose built containment sorts this problem out. As you can see now on most tube stations, a very fancy coloured containment runs very nicely down the centre of all passage ways, esculators and platform levels, which is idea for lighting pa etc.......coming across old disused stations is the most interesting being listed, you cannot touch anything, including 1950`s chocolate and 1p weighing machines and wall posters
Must admit, do miss working on underground...lol

 

[Brightspark2]

There is the 'what if' the fire was at the distribution board then yes the fp200 to the panel seems a bit pointless...

But then what if it's not?.

Also if the panel is fed straight from the main distribution point rather than the SUB boards it does offer more protection and starts to make more sense. Your giving the circuit the best possible (can't think of the word I'm after) erm protection, durability, enhancement??

That's my thinking to the debate anyway lol...