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i cut a usb break-out for a nexus-7 that dropped and mashed up the charging port. an led connected to the red and black wires lites up without the charger being needed.
matter of factly, certain cheap chargers only have 2 wires (they dont contain yellow/green rts/rtr lines).
most devices nowadays stop charging automatically when full; so there is some logic to disconnect.
Yes, the USB receptacle on the phone has voltage present. SO what? 5VDC cannot generate enough current to shock a person.
The only cheap USB charger/adapters I have seen have no 120 VAC cords at all - they have blades that plug into a receptacle or in this particular case, an extension cord. The extension cord, not the phone, may have made the connection to the household circuit. An older house may not have had a GFCI breaker in the bathroom.
"Horse is dead, please stop beating it"
Some AC-USB chargers have very poor isolation from the full mains current. Here's an example with a euro plug, but the concept is the same:
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Much more serious problem in other countries which run on 200+ VAC than Texas which is 12o VAC, but yes, crappy cheap charger may have been a contributor.
Wait for the ME report.
"The cord was plugged into a non-grounded outlet with no circuit-interrupting safety mechanism, according to a report from the U.S. Consumer Product Safety Commission and the Lovington Police Department.
The report explains that Coe’s cellphone was never immersed in water, NBC 12 notes.
Officials said the girl died from touching a frayed part of the extension cord that had water in it."
on the first few pages of this thread (before the follow-up that an extension cord was used) people were arguing that a cellular-telefone and a usb charger were likely to cause harm in the water (nobody ever uses a cellular-telefone in the rain ?).
the headline was clik-bait; its like headlining "teen murdered with cell-fone" and then finding out the assailant used a handgun but had a cellular-telefone in their pocket.
@crashj007: it was said upthread that the usb charging port is eletronically disconnected when not charging to prevent rain water from harming the user.
not quite sure what you meant about the cheap usb cables (the dollar store ones dont have an ac/dc converter; only usb type-a to micro-usb receptacle).
the bathroom probably doesnt have any outlets, thus the need of an extension cord. so gfci is probably not in play here.
thanks for your insites; i am learning a little bit.
Last edited by stanley-88888888; 07-16-2017 at 01:49 PM..
Reason: dont want to sound condescending.
Much more serious problem in other countries which run on 200+ VAC than Texas which is 120 VAC, but yes, crappy cheap charger may have been a contributor.
Wait for the ME report.
Now we're getting into Cycles which is a bit too far off of topic.
"The cord was plugged into a non-grounded outlet with no circuit-interrupting safety mechanism, according to a report from the U.S. Consumer Product Safety Commission and the Lovington Police Department.
The report explains that Coe’s cellphone was never immersed in water, NBC 12 notes.
Officials said the girl died from touching a frayed part of the extension cord that had water in it."
The outlet was most likely Two Prong and the box was not grounded. This made the girl the ground when she touched the faucets and the frayed wire (one of them had to be frayed. As if both wires were frayed then that would've been a instant fire and the entire length of the cord would be burned) and thus closed the circuit.
And looking at the photo of the extension cord and DC block, it's a cheapo extension cord and the the DC block looks like the one's that come with Amazon tablets and its 1.8A.
The outlet was most likely Two Prong and the box was not grounded. This made the girl the ground when she touched the faucets and the frayed wire (one of them had to be frayed. As if both wires were frayed then that would've been a instant fire and the entire length of the cord would be burned) and thus closed the circuit.
Do you know what you find at the end of your rope?
Frayed knot.
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