Not least by obstructing firefighters coming up.[by evacuating the entire building]
It seems to be the case that some buildings are just inherently dangerous and will need to be decommissioned if they can't be upgraded.
Just a quick observation here folks, from someone who at one time was involved in Fire, Security & CCTV systems. Modern panels (Gent Vigilon, Advanced, Kentec etc) can be configured with very complex cause & effect, such that a fire on one floor only tips out that floor, ditto if nothing is done to the alarm within a set amount of time, it can sequentially evacuate floors through use of further time delays etc etc. There really is no excuse in 2017 for tall towers like this not to have such a system - when they're properly configured & maintained, they save lives. Old panels didn't have this, it was one out all out - things have moved on, massively.
Bringing it round to relevance on this forum - we all know of Inspector Sands on LU & NR stations. LU certainly have recently upgraded most (all?) of their fire panels to Kentec's from various old systems. The 2 minute delay, and the automatic evacuation which we all know so well on these systems is just a very minor implementation of Cause & Effect on these systems.
I used to live in a low-rise apartment (3 floors, 1950s concrete with stucco over) - fire alarms here were woeful - Consumer grade interconnected smokes which woke nobody up the night we had a small fire in the electric cupboard. I was up anyway & heard it. Even the fire service couldn't wake sleeping residents. The fire self extinguished & all was well, but after that day I put in a very basic system of my own into my apartment with a smoke head outside in the stairwell.
I moved out of there long ago & whilst this may appear overkill to some I have a Gent Vigilon system in the house which I put in myself - its the kind of panel you see in Hospitals (Addenbrookes for instance has a Vigilon system) & airports (Belfast City also has one, LHR has too or did) etc - I had the parts of the system & thought it wise. It replaced the old consumer grade smokes which went off whenever one made toast, and can easily be removed when I move house, reinstating the old system. I know I'm the exception to the rule here as I also have a top notch alarm as installed in every RBS branch, and CCTV that wouldn't look out of place in a shopping centre, but each to their own.
I guess what I'm saying here is that with modern fire panels, there is no excuse for any building of any size not to have them.
Yes, there is always the risk of false alarms, but if you put the smokes & heats in the communal area, Jonny making his toast wont set them off, but any larger fire will.
If you want to put heads in the flat, put heat heads in - these only trip at pre-determined heat levels (bi-metal strips are used as the element) which would only be found in a fire.
Vigilons, and this is now the same for most systems, have combined smoke/heat/CO sensors which are nigh on impossible to 'false' - trust me I've tried, even the professional testing kits designed for them sometimes fail to set them off. Only lighting a real fire (paper in a saucepan, before you ask!) will set them off as they need a bit of all 3 elements to make them go.
Robust, 'non falseable' heads in every apartment, Sounders in every flat (heads & sounders are usually combined these days) so nobody misses the alarm. Proper Cause & Effect programming on the panel. Guidance to evacuate not stay put when you hear the alarm. Maintain it. Test it. If this was enforced as law, and it isnt onerous or OTT in any way, then I guarantee you we would likely be seeing fatalities in low single digits in this case at worst instead of mass casualties. There are just no excuses in 2017 with the technology which is now out there.