Minimum allowed drop on ac voltage
I am trying to run a elect heater off my 120 20 amp circuit plugged in at home. It drops to around 104 volts when using. Will this cause any problems?
Forum Discussion
Dick_B wrote:
I'm no expert (flunked out of Electrical Engineering) but the normal range of voltage is +/- 10% which is 108 volts.
My guess is that it will not cause any problem with your electric heater since it is mostly a resistive load (as opposed to a motor load) BUT I'd be more concerned as to why such a large voltage drop. Could it be that the wiring to the heater is too small ie. 14 gauge instead of 12 gauge, etc. or old or the connections are not good?
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