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  1. Replies
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    That has always been a serious problem with...

    That has always been a serious problem with plug-in protectors. Even specification numbers say why. A potentially destructive surge is maybe hundreds of thousands of joules. How many joules does...
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    1,261

    The article is quite appropriate. But can be...

    The article is quite appropriate. But can be vague on what would create > 370 volts.

    The reference is to Common Mode. Most think of voltage in terms of a current incoming on one wire. And...
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    2,272

    This is the Ask Our Pro's forum, and only Pro...

    This is the Ask Our Pro's forum, and only Pro members that have been vetted by the AOPC may post advise, commentary, or ask questions of the OP here.

    You can find the rules for posting and...
  4. Replies
    10
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    2,272

    This is the Ask Our Pro's forum, and only Pro...

    This is the Ask Our Pro's forum, and only Pro members that have been vetted by the AOPC may post advise, commentary, or ask questions of the OP here.

    You can find the rules for posting and...
  5. Replies
    13
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    1,689

    You can have 2 volts difference between two...

    You can have 2 volts difference between two wires. And both wires are also at 800 volts.

    kc2dnw said why. I said similar using a term 'single point earth ground'. If you do not do as was...
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    1,689

    First understand what that 'whole house'...

    First understand what that 'whole house' protector did. No protector does protection. It simply connected incoming surges to earth ground. The earth ground did that protection.

    The concept is...
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    1,964

    First thing we do to eliminate static electric...

    First thing we do to eliminate static electric discharges: raise room humidity to at least 20%; ideally 40%.
  8. Replies
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    1,964

    Safety ground does not provide hardware safety. ...

    Safety ground does not provide hardware safety. Its purpose is human safety. Safety ground (also called equipment ground) is a dedicated connection to a bus bar inside the main circuit breaker box....
  9. Replies
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    1,964

    Most all heard what Spock (not the baby doctor)...

    Most all heard what Spock (not the baby doctor) said. Fewer would have read Holmes.

    timebuilder is correct about how robust even CMOS is (type A suffered from an SCR effect but also had...
  10. Replies
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    1,964

    So that is one suspect. Others may exist. Best...

    So that is one suspect. Others may exist. Best evidence is always the dead body. Any informed tech or an engineer should be able to fix that board by identifying and then replacing the defective...
  11. Replies
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    1,964

    First remember what was taught in elementary...

    First remember what was taught in elementary school science. Electricity always has an incoming and an outgoing path. If either path is missing, then no electricity (no destructive current) exists....
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    What makes an effective protector different from...

    What makes an effective protector different from other protectors that can even make damage easier? Effective protectors connect to the only item that does all protection.

    Some protection...
  13. Replies
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    3,083

    Neutral wire protector is irrelevant. Best...

    Neutral wire protector is irrelevant. Best protection on a neutral wire is a short (ie 'less than 10 foot') connection from that neutral wire to earth. Same short connection from other wires (L1,...
  14. Replies
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    3,083

    Your assumptions are based in popular myths. ...

    Your assumptions are based in popular myths. That protector is not protection for that one circuit. It does protection for everything inside the house - for all circuits.

    Another also posted...
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    764

    A protector is installed so that no typically...

    A protector is installed so that no typically destructive surges cause damage. That includes direct lightning strikes.

    Read the specification numbers. A minimal 'whole house' protector is...
  16. You will ask someone to do what can only be done...

    You will ask someone to do what can only be done with a schematic and electronic design knowledge. Techs can tell you what worked correctly when replaced. And if wires were connected wrong. Techs...
  17. Replies
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    Any protector that burns out, explodes, etc...

    Any protector that burns out, explodes, etc violates MOV manufacturer requirements. And is how scam protectors get recommended by the naive.

    MOVs must never fail catastrophically. MOV...
  18. Replies
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    2,623

    Power strip protectors do not even claim...

    Power strip protectors do not even claim protection. But again, no protector does protection. Every protection layer is only defined by the only thing that does protection - earth ground.

    ...
  19. Replies
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    Where is the single point ground? For example,...

    Where is the single point ground? For example, a professional provides a figure in this application note:
    http://www.erico.com/public/library/fep/technotes/tncr002.pdf

    Pictured are two...
  20. Replies
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    2,623

    The concept called skin effect says well less...

    The concept called skin effect says well less than one-quarter inch of that 3 foot thick wire would carry any current. Since he did not even know skin effect, then most everything electrical he said...
  21. Replies
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    2,623

    Go to Lowes or Home Depot. Find a 'whole house'...

    Go to Lowes or Home Depot. Find a 'whole house' protector from Cutler-Hammer. View wires that are rated to conduct 50,000 amps.

    A minimal 'whole house' protector starts at 50,000 amps. If you...
  22. Replies
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    2,623

    A 'whole house' protector means protection from...

    A 'whole house' protector means protection from all types of destructive surges including those 'inside the building'. How often does everyone replace dimmers switches? Hourly because 'inside the...
  23. Replies
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    2,620

    Not a HAM. But the basic electrical principles...

    Not a HAM. But the basic electrical principles here involve RF electricity.

    For example, the third prong on a wall receptacle - the safety ground - does eventually connect to earth ground. But...
  24. Replies
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    2,620

    An industry benchmark is Polyphaser. View their...

    An industry benchmark is Polyphaser. View their application notes at:
    http://www.polyphaser.com/technical_notes.aspx

    But first, a basic concept based in what was taught in 2nd grade...
  25. Replies
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    A nearby hit can also be a direct hit. An...

    A nearby hit can also be a direct hit. An example. Lightning struck the nearby tree. Any campers sleeping pointed at that tree required emergency medical treatment. Anyone sleeping tangent was...
  26. Replies
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    First you trace the ground wire. Nobody needs...

    First you trace the ground wire. Nobody needs electrical knowledge to do that. Anyone with minimal knowledge can follow that wire. Tracing the ground wire takes eyes, grasp of what is colored...
  27. Replies
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    2,620

    Does not matter where the spike came down. ...

    Does not matter where the spike came down. Matters are what an incoming and outgoing current path were. Spike (implying voltage) is not relevant. Relevant is the current path. Voltage (and the...
  28. Replies
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    Again, please learn the difference. No earth...

    Again, please learn the difference. No earth ground is at the receptacle. That safety ground (or equipment ground) does nothing to conduct current through the earth ground. How does current through...
  29. Replies
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    The essential and code required earth ground...

    The essential and code required earth ground could be completely missing. And that test would report everything as OK.

    There is only one way to confirm that so critically important earth ground...
  30. Replies
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    2,620

    Implied is a problem that even violates...

    Implied is a problem that even violates antiquated standards. A problem too often seen in many older homes.

    Too many see lights working. Then assume everything is OK. Classic junk science...
  31. Replies
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    2,620

    Lightning seeks earth ground. Typically, you had...

    Lightning seeks earth ground. Typically, you had damage because a lightning strike even to wires down the street found earth ground via your house. Your damage implies a massive earth ground...
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