On Oct 2, 4:13 pm, w_tom wrote:
On Oct 2, 12:44 pm, Douglas Johnson wrote:

I've seen you make this claim many times. Could you please give a reference to
a manufacturer's data sheet on a common appliance (TV, computer, stereo) with
surge protection data?

Even low voltage interface ICs now contain 2000 or 15,000 volt
internal protection as even required by an IEC standard. A USB
interface chip datasheet demonstrates that standard:
http://datasheets.maxim-ic.com/en/ds/MAX3349EA.pdf
..
w_ is either stupid or dishonest (probably both). Read the data sheet.
The 15,000V is for ESD protection - Electrostatic Discharge. As in
shuffle across the rug and touch the wire. The source resistance is
very high -1 megohm - and current is very limited - 15mA, and short
period. The IC does not "see" 15,000V.

This has no similarity to what the IC would "see" from a surge.

15,000V can arc across about 3/4"9.
..
Requested were sources for protection inside every appliance.
Provided are examples of industry standards that only the few
electrically knowledgeable would know.
..
Provided were vague references to standards with no name and no links
from a delusional source.
..
All appliances contain internal protection.
..
People with real world experience have challenged w_ on this. Just one
example:
http://groups.google.com/group/comp....se_frm/thread/
e2275d3a21dadd68/01f94595de2e9a60?hl=en&lnk=st&q=#01f94595de2e9a60
or
http://tinyurl.com/3w4h2v

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