LED light PSA for increasing shock hazards
Added 2021-07-10 17:24:52 +0000 UTCThese PSA style videos are never really that popular, but I feel it's important to put them out there in case it helps even one person avoid an electric shock incident.
https://www.youtube.com/watch?v=FeKL82V3p-Q
It's probably the fact that the world is now covered in defective LED floodlights that is causing what appears to be an increasing number of shocks from faulty lights.
That's partly due to the bad grounding of many lights, and the failure mode of the new flip-chip arrays in a manner that results in a conductive path to the aluminium PCB substrate.
Comments
This is good info but unfortunately this kind of thing gets lost in a sea of bunk. Especially here in the US where huge numbers of people that think reality is optional.
Nani Isobel
2021-07-18 21:37:44 +0000 UTCNot just RCDs, but the US has been dragging its feet on so much, ever since the 1980s.
Rocco Rizzo
2021-07-12 18:40:13 +0000 UTCI'd love a series on the newer breaker technology!
Jeremy Impson
2021-07-12 11:56:11 +0000 UTCWith a beefy 240V supply arcing usually involves a flashover with enough current to trip a breaker, or quickly gets the earth involved and trips the RCD. In America they tend to have RCDs at the end of the circuit instead of the start.
Big Clive
2021-07-11 18:33:36 +0000 UTCThe risk of making RCDs too "clever" is the possible increase in false trips and extra power consumption adding up with widespread use. It's why I'm not keen on arc fault detectors.
Big Clive
2021-07-11 17:29:33 +0000 UTCThey'll quickly learn.
Big Clive
2021-07-11 17:26:57 +0000 UTCGreat video Clive. The most worrying thing is this could be an unseen fault for years. Was this a Type I appliance or Type II with accessible conductive parts? Anything outdoors of course increases risk. A type AC would trip eventually, at something like 100mA RMS half wave. But if as you say the current limit is set below that, BUGGER! You're correct Germany are ahead - as are Ireland. But only due to a culture of standards and testing. They'd LIKE to make Type B compulsory but right now nobody can make a cheap Type B RCD and EV chargers have the DC part built in or use other methods borrowed from Scandinavian-style IT installations.
Mike Page
2021-07-11 16:09:01 +0000 UTCDitto Ireland and Germany, and UK is heading that way. Officially, you should only install Type AC if the loads on the circuit justify it, which is almost never the case domestically. But there are a lot still out there as inspections are only done on rented properties and those for sale.
Mike Page
2021-07-11 16:03:05 +0000 UTCPlease don't stop making these videos... they are so valuable!
Rik Kershaw-Moore
2021-07-11 08:11:20 +0000 UTCNew Zealand use the type A RCDs as standard because of the High Voltage DC link between the two main islands. Type AC are not allowed to be installed at all
2021-07-11 01:14:01 +0000 UTCVery concerning.
Jim
2021-07-10 20:00:48 +0000 UTCThey will fix it when there is money in it.
Michael Thompson
2021-07-10 18:03:55 +0000 UTCHey kids don't put lips on it!
Michael Thompson
2021-07-10 17:52:56 +0000 UTCPSA is unpleasant. Should go with LED DEATH TRAP SCANDAL!!!!! instead....
Michael Gilchrest
2021-07-10 17:27:05 +0000 UTC
