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Cables and reaction to fire

lyledunn
Why do you suppose that the MHCLG did not feel it necessary to mandate levels of performance for cables with respect to their reaction to fire as was their prerogative under CPR?

Clearly the current non-prescriptive approach is either working or there is no significant evidence that cables and wiring systems have unduly contributed to the propagation of a fire or resulted in emissions that made a situation untenable when it would not have otherwise been. 

Further, what does it actually mean in the note in 422.2.1 that cables need to satisfy the requirements of the CPR in terms of their reaction to fire? I can find nothing specific in the CPR other than the need for CE marking and the requirements placed on the manufacturers for technical information.
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  • Former Community Member
    0 Former Community Member

    Alasdair Anderson:




     



    Classified areas will generally have access control, normally through a card swipe or keypad to open the door (to get in at least). All doors are automatically unlocked when the fire alarm sounds so that people can escape rapidly (which means if you want to get in, just set off the fire alarm or wait for the weekly test - I know it works as I have tried it, but only with rooms I had access to anyway and only with the weekly test).

    Not necessarily true - there are all sorts of establishments where doors do not unlock in the event of a fire - but you absolutely need adequate procedures in place to manage the risk of people effectively locked in a building (or sector of a building) - you need to think prisons, hospitals, cash handling and other banking facilities along with a whole host of other secure facilities.


    Having said all this, I realise that we are suffering from a bit of topic creep here. I am not sure what this has to do with cable fire performance. Any comments to bring it back will no doubt be welcomed by Lisa.

    LoL - teachers pet ?



    Alasdair


     




     

Reply
  • Former Community Member
    0 Former Community Member

    Alasdair Anderson:




     



    Classified areas will generally have access control, normally through a card swipe or keypad to open the door (to get in at least). All doors are automatically unlocked when the fire alarm sounds so that people can escape rapidly (which means if you want to get in, just set off the fire alarm or wait for the weekly test - I know it works as I have tried it, but only with rooms I had access to anyway and only with the weekly test).

    Not necessarily true - there are all sorts of establishments where doors do not unlock in the event of a fire - but you absolutely need adequate procedures in place to manage the risk of people effectively locked in a building (or sector of a building) - you need to think prisons, hospitals, cash handling and other banking facilities along with a whole host of other secure facilities.


    Having said all this, I realise that we are suffering from a bit of topic creep here. I am not sure what this has to do with cable fire performance. Any comments to bring it back will no doubt be welcomed by Lisa.

    LoL - teachers pet ?



    Alasdair


     




     

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