Posted by John T on November 26, 2010 at 07:03:09 from (66.244.97.31):
In Reply to: Surge Protection posted by PopinJohn on November 26, 2010 at 06:23:20:
Mornin John,
You ask?
Does anyone know if a GFI receptacle will protect an appliance that has electronic controls? As well as/or better than a surge protection power strip?
Answer NOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
A straight GFI is NOT a surge protector A straight surge protector is NOT a GFI
They each have different purposes providing different modes of protection.
A GFI opens the circuit (i.e. disconnects the hot feed) in the event of a fault whereby even only a small minute amount of the current supplied by the hot line conductor is NOT being returned by the Neutral. i.e. theres a short allowing return current flow elsewhere AND YOU DONT WANT IT THROUGH YOUR OLD TICKER. Its purpose is to SAVE LIVES by shutting off the power should a short develop such as a bare feed coming in contact with the case/frame of a tool or appliance.
A SURGE PROTECTOR IS TO SAVE THE DEVICE such as sensitive electronic components. If theres a high voltage spike or surge (that could damage electronics) it diverts/blocks the same from getting to and damaging the device.
GFI is required near kitchen or bathroom sinks and other locations such as in garages with concrete floors, outdoor receptacles and a few other locations AGAIN ITS TO PROTECT YOUR LIFE and isnt concerned with device protection. SURGE PROTECTION is to prevent damage to electronic devices from high voltage spikes/surges.
Arc Fault protectors shut the power off if arcing is detected which may not trip a circuit breaker (not high current flow) but can still cause a fire. These are used in say a bedroom branch circuit where an extension cord could short out and not trip a normal thermal magnetic circuit breaker but still create heat to start a fire.
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