That's a tell-tale sign that the cap is ripe and ready for harvestingAnd I meant literally. (About the bloomin' cap)
See what I mean.
View attachment 87960
I have never seen a capacitor open up like a flower before. Have you ?
Been there, Done that. No shield though. Bloody thing blew in my face.I have mistakenly placed caps in RD circuits... RD meaning breadboarding a circuit under construction, over their rated voltage...
This usually only boils the electrolyte, and blows the cork out of the bottom, while the plates, paper and can slam off with an ungodly vengeance in whatever directon they choose... which is why we wear face-shields... or should
I'm realizing that now that I saw that picture. I've only seen them swell in the past.....But great design for safety!!The 3 others are bad too.. Just haven't ruptured yet..
And to Randy.. Thats EXACTLY what those "crosshair" lines are for.. "Controlled rupture"
That isn't supposed to happen anymore - that's why they crease the top of the can to deliberately weaken it, so it could vent safely before it built up a head of steam.I have mistakenly placed caps in RD circuits... RD meaning breadboarding a circuit under construction, over their rated voltage...
This usually only boils the electrolyte, and blows the cork out of the bottom, while the plates, paper and can slam off with an ungodly vengeance in whatever directon they choose... which is why we wear face-shields... or should
The modification to the aluminium can addressed the issue of capacitors building up pressure and exploding - I don't think fire played any part in that consideration. The only significant flammable part of an electro' is the paper separator - and that's soggy with caustic electrolyte. It would have to be arcing for a while to dry that out so it can catch fire.So why did the first caught fire.
The venting alone did not help prevent fire.
I was attending two more unite on the same roof and I needed to see the connection details so took the cover out of this one to find the flower.
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