General > General Technical Chat
Dodgy solar regulators catches fire this morning
ocset:
--- Quote ---As I understand it, while anyone can import any rubbish into Australia, they can't legally sell it without the appropriate approvals - or they will be in big trouble.
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Thanks...but stuff can still pass approvals and be rubbish......just look at Dave Jones Laptop which passed all approvals but obviously was junk due to insufficient transient protection/clearance
https://www.youtube.com/watch?v=YfpUggLais4&feature=youtu.be
Also, the cheap Chinese PSU with the potentially "iffy" fan, which is highlighted in this video.......it makes a noise like a bearing is gone.......a known cause for fan premature failure.
To be fair, we dont know if this PSU has a cut-out so if the fan fails, it shuts down, and waits for a fan replacement before restarting...we also dont know what thermal protection the PSU has.
Maybe the datasheet tells it?
https://www.youtube.com/watch?v=GUxszz_lo14&feature=youtu.be
...also no output current clamp.....this i wouldnt mind, but its spec sheet should point it out, just in case....maybe it does point it out...dont know
Be prepared in Aus/NZ/USA/EU/UK etc etc etc for loads of trash, short-lifetime electronics.....unless YOU actively oppose it...its coming to you
--- Quote ---Over here in the Netherlands the radio communication system used by the fire brigade, ambulance, police, etc is known to be disrupted by (dodgy) solar panel installations. Another problem in the making...
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We've sent over the "Revive EU industry" template to the EU...but we got no reply...please try to send it yourself...
...here is the template...(just sub [Your Country] for [UK] )
https://massey276.wixsite.com/revive
ocset:
--- Quote ---In our country we don't tolerate engineers who can't use pre-validated Vicor modules properly, unlike in UK. Imagine those solar inverters using expensive pre-validated modules yet erupting into flames. At lease we get one end of it.
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OK thanks, but that wasnt the point. Everyone here acknowledges that China has the best Power supply designers in the world right now.
The mistake is in the West, by Westerners.......shutting down their entire power supply design capability and sending it all over to China.
It would similarly be a mistake and be bad for China to shut down its entire power supply design industry , and send it to the West.
SiliconWizard:
Not sure I see the link with a dodgy installation using dodgy parts as is shown in the OP.
If you buy non-certified crap and have it installed (even worse if not installed properly on top of it), it's 100% your responsibility. Not the responsibility of the current state of the power supply industry.
::)
nctnico:
--- Quote from: SiliconWizard on April 11, 2020, 01:35:40 pm ---Not sure I see the link with a dodgy installation using dodgy parts as is shown in the OP.
If you buy non-certified crap and have it installed (even worse if not installed properly on top of it), it's 100% your responsibility. Not the responsibility of the current state of the power supply industry.
::)
--- End quote ---
It is not black & white like that. If equipment fails CE emissions testing the manufacturer may opt to rectify that by supplying external filtering components and/or specify mounting instructions. If the installer gets it wrong then the installation will cause more emissions then expected even though it passed CE emissions testing.
NiHaoMike:
Could that be from using AC only breakers on DC? The breakers are completely melted while the charge controller only partially.
It also looks like automatic fire extinguishers would be a good idea just as they are for 3D printers left running overnight.
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