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(discharged) Super capacitor in checked luggage on airplane?
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james_s:

--- Quote from: bigfoot22 on January 18, 2023, 07:35:19 am ---Depends on what kind of life the capacitor has lived. If they have been heated before externally via some other means besides the power on their terminals they could have produced a bubble internally which could cause a pressure differential and rupture the canister. If they are brand new then this is extremely unlikely.

--- End quote ---

No chance. Aircraft cabin altitude is 6,000-8,000 ft at cruising altitude. That's enough of a pressure change to cause a plastic water bottle to bow in or hiss slightly when opened but it's not nearly enough to make anything rupture.
Thunderer:

--- Quote from: james_s on January 19, 2023, 01:59:15 am ---Aircraft cabin altitude is 6,000-8,000 ft at cruising altitude.
--- End quote ---
While the aircraft engines are cruising at 30,000 ft altitude  |O. What kind of plane are you making reference to? Commercial ones, not only the trans-atlantic (as the present case) do not fly at 6-8,000 ft altitude but in the 5 minutes from take-off and while preparing the landing.
james_s:

--- Quote from: Thunderer on January 19, 2023, 02:39:47 am ---
--- Quote from: james_s on January 19, 2023, 01:59:15 am ---Aircraft cabin altitude is 6,000-8,000 ft at cruising altitude.
--- End quote ---
While the aircraft engines are cruising at 30,000 ft altitude  |O. What kind of plane are you making reference to? Commercial ones, not only the trans-atlantic (as the present case) do not fly at 6-8,000 ft altitude but in the 5 minutes from take-off and while preparing the landing.

--- End quote ---

Uh, perhaps you are confusing cabin altitude with the actual cruising altitude of the aircraft? Commercial airliners are pressurized to an equivalent pressure of 6,000-8,000 ft, this is called cabin altitude. If not for that, the passengers and crew would lose consciousness by the time the plane reached cruising altitude.
amc184:
I've taken equipment containing large electrolytics that were similar in appearance to supercapacitors as both checked luggage and carry on in the US before.  TSA took the equipment from the bag and tested a swab from it with an ion scanner.  Getting a clear result from that seemed to be all they wanted to see.  I haven't taken large cylinders on their own, and I don't have any experience in the EU.

I don't want to get involved in the discussion about safety, but the plane the crashed because of on-board oxidisers might be this one:
https://en.wikipedia.org/wiki/ValuJet_Flight_592

It was a pretty extreme amount in this case, from a large quantity of improperly stored chemical oxygen generators.
wraper:

--- Quote from: tggzzz on January 18, 2023, 10:23:01 pm ---
--- Quote from: wraper on January 18, 2023, 10:01:18 pm ---
--- Quote from: Robert763 on January 18, 2023, 07:19:14 pm ---People have died because oxidisers were carried on passenger aircraft.

--- End quote ---
Please list at least one accident.

--- End quote ---

Don't bother, of course.

If you did bother to find and list an occurrance, he would find a way to dispute its relevance. There is, after all, no true Scotsman.

--- End quote ---
He claimed people died because passengers bringing oxidizers. I googled and found nothing.
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