I have 120v leaving the switch to an outdoor lamp post. The voltage at the post is 24v. It is a direct run buried to the post with no junction boxes, etc.
Voltage drop -
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I recently installed one GFCI plug in my master bath next to a bathroom sink after it went out. I have 120 volts to both plugs on that plug. The next plug (bought new) on the same circuit, I only get 98 volts to 102 volts. Since this plug and the one that was replaced are within 6 feet of the 2nd bathroom sink and the bath tub, I would have thought it should have been a GFCI plug, but it had always worked before as a non GFCI plug.
The house was bought new by us and that is how it was originally wired and all worked fine. My question is how can the voltage drop from 120 volts to 98 to 102 volts on the same circuit? I am now considering buying another GFCI plug to replace the non GFCI plug to see if this makes a difference or would it be a waste of my money. The plug would not know if it is within 6 feet of a water source or is there another problem, I am missing?
Thank you in advance for your help!
You probably have a loose or corroded connection at either the house or power lines. Call the power company first. If it is at their end they will fix it at no cost to you.
The meter is on the pole near the driveway. The line from the meter split bolts to the house and 2 shops. The house and shop 1 both have no problems, shop 2 has proper voltage on both phases until a load is applied. Once a load is applied there is a large voltage drop on 1 of the phases.
My question is what could cause this voltage drop on one phase. All that's in the sub panel is a 2 pole 20a, 1p20a, 2p50, and those feed a 220 plug, a 120v plug and a plug for a welder. The plugs, breakers, and wires to each have been replaced.
A poor connection.
A possible culprit here could be a poor electrical connection that is high resistance and when placed under any load produces a significant voltage drop. Be warned that a poor connection causing voltage drop produces heat.
Have an electrician look into this or have your utility check the connection at the pole.
Why would a switch be reading only 90 volts when its suppose to be 110?
By Sharon
The first thing I would do is check another outlet to be sure it is not a supply issue. I would not assume it is a problem with a switch till I checked other outlets(s).
