On Fri, 10 Feb 2017 20:30:08 -0000, wrote:

On Fri, 10 Feb 2017 08:45:56 -0800 (PST), westom
wrote:

On Thursday, February 9, 2017 at 9:36:52 PM UTC-5, Diesel wrote:
In part? Er, no. That's the primary reason the protector and
everything else wasn't damaged/destroyed. Your house protector does
the same thing the plugin surge protectors do on a larger level. It
tries to redirect excess current on either/both legs to ground, to
bleed it off as quickly as is possible.

You assumed resistance is relevant. It is not. Impedance is the relevant parameter. Plug-in protectors are all but completely disconnected from earth ground. Plug-in protectors must somehow 'block' or 'absorb' that energy. Plug-in protectors operate completely different from a properly earthed 'whole house' protector.

That depends TOTALLY on what kind if plug-in protector you have. A 2
stage 3 mode protector protects against common mode AND differential
mode occurrences - usually employing 6 MOVs and 2 Gas Discharge tubes
along with 2 inductors. Each stage has an MOV across the line (phase
to neutral) as well as an MOV from both phase and neutral to theGas
Discharge device to Safety Ground. The two stages are coupled in
series through inductors on both Phase and Neutral.
A simplified (and slightly less effective) unit uses only a single
MOV in each stage for differential protection, (between Phase and
Neutral) and a gas discharge device between neutral and Safety
Ground, to handle common mode events. Again the 2 stahes are connected
through an inductor (which slows the rate if rise)

Jesus Christ, how bad is your incoming power?

--
If I said you had a beautiful body, would you hold it against me? -- Monty Python, Episode 25