MEXICOWANDERER wrote:
MOVs by themselves react too slow. By trebling and selecting "largest in class" components, I gain vastly increased lifespan of the device.
These urban myths not supported by facts with numbers promote scams. MOVs are more than fast enough. Anyone can read those datasheets rather than parrot what the technically naive promote. What causes any protector to operate slower is, for example, wire length.
Speed of an MOV varies significantly when measured adjacent to the disc verses measured 5 cm down its wire leads. Move on to relevant numbers.
If your home made protector is useful, then it is already inside all appliances. Your homemade protector will be just as ineffective as an APC or Belkin. And probably more dangerous. Fire is a serious problem with near zero joule protectors.
How many did not learn about some 15 million APCs so dangerous that APC finally admitted these must be disposed immediately. How many recommend these proetctors and do not even know about the 15 million that create fires more often? Other protectors from Belkin and others are electrically similar.
Again, numbers. How many joules will your homemade protector 'absorb'? Thousand? Protectors from that anomaly (called a surge) must safely dissipate hundreds of thousands of joules.
A 1000-2000 joule protector is a near zero joule protector. Most electronics will convert that tiny surge into rock stable, low DC voltages to safely power its semiconductors. Unfortunately too many are only educated by advertising, hearsay, and speculation. Then assume a thousand joule protector is robust. It is near zero.
Meanwhile, a
surge that a power strip must magically 'block' or 'absorb' is not the surge that effective campground protectors address. So many and different anomalies are all called surges. Which one is a concern in campgrounds? Not one that is a concern to a home computer.
