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Originally Posted by xoxoxoBruce
My APC 500 isn’t protecting my PC from bad shit? My house system is wired properly with the 10’ copper spike to earth. What else do I need?
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Your APC does not even claim to protect from the typically destructive transient. They use classic propaganda techniques so that you will assume such protection. The APC UPS does one function - battery backup of data during blackouts and extreme brownouts.
Listed were protectors that can make that 'less than 10 foot' earthing connection. More responsible retailers such as Home Depot (Intermatic) and Lowes (GE and Cutler-Hammer) sell these solutions. Also most electrical supply houses. Never saw an effective protector sold in Radio Shack, Kmart, Sears, Staples, WalMart, Office Max, Best Buy, Circuit City, or Target.
Meanwhile, 'whole house' protectors are so effective and so inexpensive as to be provided, free, by the telephone company in your NID. This, too, will only be as effective as the earth ground 'you' have provided. CATV wire requires (and best has) no surge protector. Protection is provided by a hardwire connection from cable ground block to, again, the common point earth ground.
All incoming utilities (including satellite dish) must enter at the same location to make that 'less than 10 foot' connection. Otherwise a building's earth ground must be enhanced as demonstrated by Cinergy in this figure of wrong, right, and preferred earthing:
http://www.cinergy.com/surge/ttip08.htm
Notice what defines protection: earthing. Pictures demonstrate what Orange County did to correct frequent surge problems - it's all about shunting to earth as Franklin demonstrated in 1752:
http://www.psihq.com/AllCopper.htm