 CurtesyFlushBababooey, fafafooey, tatatoothy.Premium
join:2002-08-23
Fontana, CA
kudos:2 | Skeptical as usual That F connector sure looks clean and slightly damaged for being the source of all that overvoltage. The shell is still shiny and bright, and there couldn't have been a bunch of amps involved due to the lack of deformation of the small ga solid center conductor.
Could a jolt coming over a cable plugged into the cable modem somehow induce the battery to explode via the ethernet cabling?
--
Life Member, NRA and CRPA. |
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| The F-connector isn't the weakest link; it can actually handle a fair amount of power, being made of solid metal. The dielectric in the cable broke down, which is another reason to believe it's more like 5000V, not 120 or 240. RG-6 dielectric shouldn't break down at 240V. |
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 whizkid3Premium,MVM
join:2002-02-21
Queens, NY
kudos:8
2 edits | reply to CurtesyFlush
said by CurtesyFlush:That F connector sure looks clean and slightly damaged for being the source of all that overvoltage. The shell is still shiny and bright, and there couldn't have been a bunch of amps involved due to the lack of deformation of the small ga solid center conductor. Both the center conductor and the dielectric insulation are burnt. The dielectric is burnt because of heat from the center conductor. For a fraction of a (60Hz) cycle at least, the center conductor could have easily delivered hundreds or even thousands of amps before the copper heated up enough to actually melt the copper. (Over 2000 degrees.) From the jolt this thing took, whatever minimal isolator that the ethernet circuit had, easily broke down allowing the current surge. Capacitors were probably exploding, not to mention the printed circuit board traces.
And considering that even the technicians partly admitted this is what happened and how; I would say you may be wrong. (Not to mention the side of the laptop where the ethernet cable plugs in, shows evidence of the most damage.) The hard drives were probably hit because their cables were adjacent.
(Russotto - didn't copy you're post - we posted at about the same time. I have to agree with you 100%, especially on the voltage.) |
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| said by whizkid3:Not to mention the side of the laptop where the ethernet cable plugs in, shows evidence of the most damage. Powerbook Ethernet comes in on the other, less damaged, side. The damage is actually centered around the power connector. The RJ connector you might be able to see on the burnt side of the Powerbook is a modem connector (presumably not plugged in, or some phones would have bought it too...). |
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 macrospectAll The Little StuffPremium
join:2005-08-25
Doylestown, PA
1 edit | reply to russotto
This transformer looks like an excellent place to plug my coax into. Maybe it will make the HSI go REALLY FAST.
Powerboost has a whole new meaning now.  |
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CurtesyFlushBababooey, fafafooey, tatatoothy.Premium
join:2002-08-23
Fontana, CA
kudos:2 | reply to whizkid3
said by whizkid3:said by CurtesyFlush:And considering that even the technicians partly admitted to what happened and how; I would say you are wrong. It's more a matter of my being convinced than it is being right or wrong. However, knowing what you do for a living and how long you've done it does carry some weight with me. --
Life Member, NRA and CRPA. |
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whizkid3Premium,MVM
join:2002-02-21
Queens, NY
kudos:8 | Well, err, thanks, Capt.
(Not sure I deserve a compliment, if it was one?) |
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CurtesyFlushBababooey, fafafooey, tatatoothy.Premium
join:2002-08-23
Fontana, CA
kudos:2 | It wasn't a compliment as much as it was an acknowledgement of your sparky career. Over 20 years, correct? Or are you something totally different, like a tool and die man or UPS driver and I've gone and mixed someone up with somebody else, AGAIN?
--
Life Member, NRA and CRPA. |
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whizkid3Premium,MVM
join:2002-02-21
Queens, NY
kudos:8
1 edit | Yeah, that's right. I've still got a long way to go before I can be as fortunate as you and retire, though.
(Edit - funny how I got this fortune immediately after my reply.) |
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