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  1. W

    EVSE relay

    The solution is a comodity; a proven solution understood and proven over 100 years ago. This commodity was defined by: Of course, no protector does protection. For example, best protection on incoming cable is a hardwire connect low impedaance (ie 'less than 3 meters') to single point earth...
  2. W

    EVSE relay

    A direct strike to wires far down the street is a direct strike incoming to every appliance. Everything needs protection or nothing needs protection. Numbers were provided. Risk is typically one event every seven years. A number that can vary significantly even in the same town. A number...
  3. W

    EVSE relay

    So everyone should disconnect the refrigerator, air conditioner, all clocks, a fire alarm system, all kitchen and bathroom GFCIs, all TVs (including disconnecting all cable boxes), and all telephone equipment? Or one properly earths a 'whole house' protector for equivalent protection. How does...
  4. W

    EVSE relay

    Most unreliable protection is a human. He is not there most of the time (asleep, gone, unaware, too busy disconnecting everything else, etc). He only knows of a surge usually after it has happened. And lightning is only a 'more commonly understood' surge. Other destructive sources also...
  5. W

    EVSE relay

    A potentially destructive surge may occur maybe once every seven years. One can earth a 'whole house' protector for about $1 per protected appliance. Second, one can spend tens or 100 times more money for a plug-in protector that does not claim to protect from that type (destructive) surge...
  6. W

    EVSE relay

    Best protection starts when the footing are poured. Two concepts apply: equipotential and conductivity. Best equipotential is an earth ground that completely surrounds the house. A technique originally developed so that munitions dumps suffer direct lightning strikes without damage: Ufer...
  7. W

    EVSE relay

    The well proven solution used in facilities that cannot have damage is also available for homes. At about $1 per protected appliance. This superior solution is unknown to many only educated by advertising myths and the resulting ineffective plug-in protectors. Lightning is typically 20,000...
  8. W

    EVSE relay

    Learn from the event. Potentially destructive surges are rare - maybe once every seven years. Plug-in protectors do not claim to protect from destructive surges. And sometimes can make damage easier. Useful recommendations define protection with numbers. For example, a destructive surge...
  9. W

    Do you use a surge protector on your lev1 EVSE chargers?

    First, the ground that meets code is often woefully insufficient for earthing a surge. For example, if the ground wire goes up over the foundation and down to an earthed electrode, then it may meet code. And be insufficient for earthing a surge. Wire is too long. Has sharp bends going over...
  10. W

    Do you use a surge protector on your lev1 EVSE chargers?

    Any protection on the power cord is already done better inside the appliance. Your concern is a rare anomaly, maybe once every seven years, that can overwhelm that internal protection. A lightning strike far down to the street to AC utility wires is a direct strike incoming to every...
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