The NIC have stated that FP200 is not suitable for use out of zones, however, FP400 or it's equivalent is fine to use.

FP400 is basically armoured FP200.

Lectrician wrote on Jan 18^th, 2009, 11:20am:

Why would anyone pay all that money and put in FP400 fire RESISTANT cable to solve the zone/RCD issue when an RCD would still be required for almost all socket outlets. Most people would not even install normal SWA, let alone some fancy FP cable.

At least if your house burns down and you install MICC you'll have something left to salvage  

Indeed. But most situations that bring up the topic of zones are in relation to normal domestic situations, where the budget won’t stretch to that type of cable.

Ideal though for residential accommodation, HMO's etc

i read that reg a few times and still missed that BS number in the reg, i think that says quite alot about how i read

Quote:


LSX isn't FP.

FP maintains electrical integrity when exposed to heat/fire/water and produces limited harmful emissions but the insudite insulation only has a 70 oC operating temperature (for circuit design / cable calcs). The aluminium foil screen is designed for emc shielding and is not of sufficient thickness to withstand the fault current necessary to operate a 32a type B mcb when penetrated by a nail.

LSX (and all the others listed) do not maintain electrical integrity in a fire and cannot be used for life safety services, the live conductors have XPLE (thermosetting) insulation (90 oC so 32a radials possible on 2.5 2c) The aluminium screen is thicker and will withstand the fault current required to trip the 32a MCB. The cables are generally LSF so are good for use in exposed public areas where poisoning isn't really an option.

The requirement for concealed conductors isn't to be nailproof, but to safely disconnect the supply when hit with the nail.

www.prysmian.co.uk/export/sites/prysmian-enGB/attach/pdf/Afumex_LSX.pdf -

Paul

2c 1.5mm is around £60 / 100m

where you get this price from? i was quote £130!!! plus VAT