w_tom wrote:
On May 30, 9:46 pm, "dnoyeB" wrote:

Only such body I am aware of is UL or United Laboratories. I dont think
all power supplies get the UL stamp of approval?

Anyway, the point is if its specified, it needs to be tested. I dont know
what body is validating that these supplies are meeting the stated
specifications. Do you?


UL does not care if a power supply even works. Their mandate is
human safety; that a power supply does not harm humans. If supply
destroys transistors - UL does not care. As long as destruction does
not harm humans, then supply can obtain UL approval.

Another standard is FCC Part 15. Supply need not meet FCC
requirements when not stated in written specs. A clone computer
assembler is responsible for compouter meeting those Part 15
requirements. Since many computer assemblers do not even know what
Part 15 is, then a supply manufacturer can 'forget' to include
essential filters; leaving computer assembler liable.

Intel demands a long list of requirements. Does the power supply
conform to those requirements? Again, responsibility lies with the
computer assembler. He must demand a long list of written
manufacturer specs. But many clone computer manufacturers know the
technical competence of their customers. If functions claimed on a
written spec sheets were missing, only then is a supply manufacturer
liable. Best to not provide any numerical specifications since so
many computer assemblers only buy on watts and price. Eyes glaze over
when many computer assemblers look at electrical parameters. Even A+
Certified technicians neither know what these functions are nor demand
those numerical specifications. North American clone computer
industry is ripe for dumping.

Explained are simplest tasks, tools, and numbers to answer the OPs
question. 200 volts could harm his computer and would be completely
ignored by a surge protector. This is simple stuff that every
responsible computer tech should know. Even A+ Certification does not
require such electrical knowledge. Therefore the OP is told a surge
protector would have eliminated overvoltage. No wonder a majority of
America's engineers are immigrants and foreigners. Too many computer
experts who don't even know how electricity works.

Hi,
Stricter spec. is CE, the EU standard spec.