PPRuNe Forums - View Single Post - 787 Batteries and Chargers - Part 1
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Old 8th Mar 2013, 21:20
  #883 (permalink)  
Join Date: Aug 2011
Location: Grassy Valley
Posts: 2,123
The proposal by Boeing was that only overcharging would cause a fire....

Fire is required to be 10^-9 as a safety critical factor.

So I would not want my batteries charging during flight, that makes the regulations not pertinent. Fire on the ground is calculated to different parameters.

I also would not want to use these batteries under casual circumstance....

That is why quick charging is a requirement, the minimum V must be met prior to launch, not anytime after....

It also explains why Boeing initially pooh poohed the smoke in cabin aspect of the fire. "Inflight, the cabin Pressure prevents it..."

Pretty slick.

And why spontaneous ignition was allowed to be considered impossible by FAA.

I say dis-establish this rubber stamp agency, pronto.....

Or require Congress to speak forensic linguistics.....
Lyman is offline