Why wouldn't the sprinklers have dealt with fires in the generator areas? Generator shut down and you only have fuel in the day tanks and lines.
Ah ha! I reckon the biggest reason that no agency has ever come out against these Conspiracy Theorists in any concerted effort is because they were busy concocting their own conspiracies after the event!
Every building is supposed to be tested to exhaustion as compared to its design and local standards - here in the U.K. I oversaw such tests where every single detector head, break glass switch unit and alarm was triggered and monitored for correct action by a whole team of specialists and signed off by the local Fire Officer to gain certification, without which - no one moves in!
Everything I read about WTC is slapdash, the design, the build, the oversight - it was a "must do" job and anyone who tried to stand in its way was overruled or circumvented - email any F.D.N.Y. personnel serving at the time and see what they thought of 1 acre open plan office spaces, non contiguous fire stairs, high rises without sprinklers ( the Towers did not have them or emergency lighting until later refits ) - the list goes on.
As a case in point, the managing agents were extremely cagey about the "generators" in WTC7 after 911 - ( no doubt because they were fully aware of all the fast ones they'd pulled ) and when some answers were forthcoming confusion often reigned ( conveniently) because the building housed an undisclosed amount of "power house equipment" belonging to Consolidated Edison for the whole site and the two underground railways as well as the standby generators installed for Salmon Brothers in their extensive remodelling - floor six was removed to accommodate them ( would like to have been on that job!) Even prior to 911, these generators were problematic - I go so far to say that there is little evidence that they were ever satisfactory as to performance, don't forget that a "standby" generator has to be standing by ready to cut in and supply full demand within an incredibly short time but enough of that. The building's steel frame was substantially altered to carry the load of the top forty floors over the effectively double height Floor 5 and although perfectly sound was probably not the best place for the fires of hell to be sited for about seven hours!
There is video which clearly shows Floor 5 to be convincingly ablaze, fanned like a blast furnace by the gale that's nearly always present at the foot of tall buildings and more especial one that's alight. Video also exists to suggest that large elements of the North Tower fell upon WTC7 and did much damage - despite no one being able to positively prove that the diesel fuel pipes to the generators were severed - looking at the fire and the vast black cloud of smoke - it doesn't take a large jump of one's imagination to say that they were! These lines were double lined three inch steel tube with very uncertain ( if any ) controls to shut them off in a fire - in my opinion their open ends were interpreted by the control gear as demand and thus the pumps delivered the fire anything up to 75 gallons a minute until the tanks were empty or the standby power failed.
Mains power would have shorted out by the Tower collapses triggering the standby start up - I'm not certain of the actual lay-out but would suggest that the feeding day tanks would be continuously topped up from reserves ( 42,000 gals - I'd really like to know how much was recovered!) as needed. As for sprinklers - you first have to consider what type were they? Wet or dry? If they were dry, you can forget all about them because there was no firefighting effort put in after the collapses and so many firemen missing. If they were wet you can also forget them because the water mains were all fractured and there was very little tankage in the building.
