Brent,
     I don't think it is funny when people could or are being hurt. That=20
is just me. Funny to me is a cat hanging onto a pole 2 feet off of the=20
ground as he looks over the pole with this look on his face that says,=20
"OK, Now what do I do?".
GOD Bless and Thanks,
rich!

On 2/25/2018 8:33 PM, Brent Brown wrote:
> Richard, sorry, my weak humour makes light of the safety concerns. The la=
st cap
> that did this near me was something like 2200uF 25V, a long time ago, and=
 I think it
> failed from temperature & ripple. Sounded like a shot gun. It was axial l=
eaded, don't
> remember if it had an X or not.
>
> Agreed, the X is there to relieve pressure... they certainly deform and o=
pen in caps
> that swell & leak. Perhaps there are limits to their effectiveness where =
a fault
> creates a fast internal pressure rise closer to the other end.
>
>>       Nope. That X is a weak spot in the casing and it is put there by
>> the manufacturer as a safety valve so that the capacitor won't go
>> ballistic if the capacitor should fail. What happened to Bob was not
>> supposed to occur. I have had Capacitors fail, including a couple that I
>> have also put in backwards over the years and I have had only one go
>> ballistic. The others opened at the top. Those had gone pop as there
>> were pieces of the insides blown all over the place but at least those
>> pieces would not have been dangerous except for a few minor burns.
>>
>>> Perhaps it's a matter of interpretation. The X means "not this end", an=
d the arrows
>>> define the direction of thrust... ;-)


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