Re: fake PC supplies
- From: "Bill Bailley" <JustMe@Home>
- Date: Mon, 23 May 2005 22:30:44 +1000
"Adam. Seychell" <invald@xxxxxxxxxxx> wrote in message
news:4291c25f$0$10302$afc38c87@xxxxxxxxxxxxxxxxxxxxxxx
> I'm recently seeing more cheap PC supplies on the market which appear to
> be fake, in that the clammed output power not impossible for the size of
> parts inside. e.g I have a 500W "Shaw" brand ATX supply, and its output
> inductor uses a piddly T106 (26mm OD) core. The 5V is specified at 35Amps
> yet the output inductor winding is 2x1.2mm diam wire and the rectifiers
> for the 5V is a 15Ax2 Schottky device. This is typical for these very
> cheap power supplies. Similarly the 12V @ 18A output uses 2x8A diode
> (STPR1620).
>
> I've also seen several other PC supplies that have completely omitted EMC
> components, and simply used wire links where the CM inductors are meant to
> go. Some PC supplies I've come across have even used standard
> ceramic/polyester capacitors in place of the Y and X2 rated safety
> capacitors.
>
> How do they get away with this ?
>
They can, and they will, until these underrated and dangerous PSUs generate
sufficient fires/casualties/deaths to trigger a judicial/coroners enquiry. A
negative finding will cause ALL the companies who make the PSUs to
disappear, and the importers/resellers to wave their certified
performance/compliance paperwork as a shield against prosecution.
Money IS the root of all evil!
.
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