w_tom wrote:

Plug-in protector has no effective earth ground. No earth ground
means no effective protection. Therefore Bud's article shows a plug-in
protector putting two TVs at 8000 volts. Will those TVs at 8000 volts
not be damaged - not leak currents in destructive paths? No. Those TVs
may be damaged because they are at 8000 volts. Bud's citation even
demonstrates why plug-in protectors can contribute to damage.


The IEEE guide clearly describes the action of a multi-port plug-in
surge suppressor as clamping all wires to the common ground at the surge
suppressor, with earthing being secondary. Why does chapter 6 of the
IEEE guide "SPECIFIC PROTECTION EXAMPLES" use multi-port plug-in surge
suppressors in both examples??

I agree with wfretwell. that a service panel surge suppressor and a
single point ground are both a very good ideas. The question is whether
plug-in surge suppressors are effective. To anyone who can read, the
IEEE and NIST guides clearly say they are.

You have proviced no reputable links saying plug-in surge suppressors
are not effective.
Where are your supporting links??

bud--