Quote:
Originally Posted by Altavia
Don't know the timing of the Middleton fire but there was a unusually high community power surge reported by Ting near Wellpoint last Monday morning impacting 620 other homes using Ting so it was widespread.
Ting
This is the kind of surge the SECO protection is designed to mitigate and illustrates the usefulness for a whole house surge protector.
The voltage spike below was measured at the output of surge protection doing its job - the surge voltage on the power line side was likely higher. |
I would like to know what the 133 volt spike actually means. Keep in mind that the 120 volt standard in the US is actually an RMS voltage of an alternating current that cycles to +/-170 volts 60 times per second. So what is the significance of the 133 volt spike? Does that mean the actual spike was 188 volts (133v X 1.414 = 188v) which only 11% over the peak voltage, which is no big deal? And why would the voltage be higher on the supply side? Does this mean the surge protector wasn't doing its job by allowing this spike through? Or maybe the spike on the supply side was just 133v RMS? Anyone?