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Home > Archive > Home Repair forum > July 2006 > household voltage results
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household voltage results
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| Bob Bins 2006-07-29, 8:25 pm |
| I had my digital volt meter hooked up to two outlets during the day. I
noticed that the voltage is normally around 114 volts. When I have my two
AC window units on it drops to about 109-112. If I then turn my microwave
on it drops to about 102-104. I tested this on two different circuits both
on different sides of the breaker panel. This voltage sounds low to me.
Is this normal or should I be seeing higher values?
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| Bob Bins wrote:
> I had my digital volt meter hooked up to two outlets during the day. I
> noticed that the voltage is normally around 114 volts. When I have my two
> AC window units on it drops to about 109-112. If I then turn my microwave
> on it drops to about 102-104. I tested this on two different circuits both
> on different sides of the breaker panel. This voltage sounds low to me.
> Is this normal or should I be seeing higher values?
>
>
>
That sounds pretty low to me. I generally get pretty close to 120V.
Even today, with the extreme heat and high loads it brings, I still
have 117V.
Are you sure your meter is right?
--
The e-mail address in our reply-to line is reversed in an attempt to
minimize spam. Our true address is of the form che...@prodigy.net.
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| Jim Nugent 2006-07-30, 3:25 am |
| In news:HsGdney56eENmFHZnZ2dnUVZ_sudnZ2d@comcast.com,
Bob Bins <msgdev@hotmail.com> wrote:
> I had my digital volt meter hooked up to two outlets during the day. I
> noticed that the voltage is normally around 114 volts. When I have
> my two AC window units on it drops to about 109-112. If I then turn
> my microwave on it drops to about 102-104. I tested this on two
> different circuits both on different sides of the breaker panel.
> This voltage sounds low to me. Is this normal or should I be seeing
> higher values?
The NEC recommends a voltage drop under load of no more than 5%. If it's
114V with no load, then under load it should be 108V or higher.
Without knowing which appliance is on which circuit or where you are
measuring, I can't comment further.
--
Jim
"Remember, an amateur built the Ark; professionals built the Titanic."
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| Jim Nugent 2006-07-30, 3:25 am |
| In news:HsGdney56eENmFHZnZ2dnUVZ_sudnZ2d@comcast.com,
Bob Bins <msgdev@hotmail.com> wrote:
> I had my digital volt meter hooked up to two outlets during the day. I
> noticed that the voltage is normally around 114 volts. When I have
> my two AC window units on it drops to about 109-112. If I then turn
> my microwave on it drops to about 102-104. I tested this on two
> different circuits both on different sides of the breaker panel.
> This voltage sounds low to me. Is this normal or should I be seeing
> higher values?
The NEC recommends a voltage drop under load of no more than 5%. If it's
114V with no load, then under load it should be 108V or higher.
Without knowing which appliance is on which circuit or where you are
measuring, I can't comment further.
--
Jim
"Remember, an amateur built the Ark; professionals built the Titanic."
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| howiesm@yahoo.com 2006-07-30, 3:25 am |
|
Bob Bins wrote:
> I had my digital volt meter hooked up to two outlets during the day. I
> noticed that the voltage is normally around 114 volts. When I have my two
> AC window units on it drops to about 109-112. If I then turn my microwave
> on it drops to about 102-104. I tested this on two different circuits both
> on different sides of the breaker panel. This voltage sounds low to me.
> Is this normal or should I be seeing higher values?
it could be several things. like loose screws in the panel, meter
socket, bad connection on the pole,too many services on one
transformer,undersized service.
try checking your panel connections at the breakers and nuetral bar.
then with breakers off check voltage if its still 114v the power
company might be willing to up your voltage.
i suppose i should recommend you contact an electrician to safely
perform some of these things.
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| Richard J Kinch 2006-07-30, 3:25 am |
| Bob Bins writes:
> I had my digital volt meter hooked up to two outlets during the day. I
> noticed that the voltage is normally around 114 volts.
Confirm the meter reading, then get the utility to buck you up to 120 VAC.
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"Bob Bins" <msgdev@hotmail.com> wrote in message
news:HsGdney56eENmFHZnZ2dnUVZ_sudnZ2d@comcast.com...
>I had my digital volt meter hooked up to two outlets during the day. I
>noticed that the voltage is normally around 114 volts. When I have my two
>AC window units on it drops to about 109-112. If I then turn my microwave
>on it drops to about 102-104. I tested this on two different circuits both
>on different sides of the breaker panel. This voltage sounds low to me.
>Is this normal or should I be seeing higher values?
Kind of low. The issue now is whether the cause of the voltage drop is
inside your house or outside.
Do the test again but this time hook up your meter to the panel on the same
phase as the AC and microwave's circuit. It should read 114V. If you can't
tell which phase is the right one, then measure both phases.
Then turn on the AC and microwave. What is the voltage? If it also drops to
102-104, then the problem is outside the panel.
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"Bob Bins" <msgdev@hotmail.com> wrote in message
news:HsGdney56eENmFHZnZ2dnUVZ_sudnZ2d@comcast.com...
> I had my digital volt meter hooked up to two outlets during the day. I
> noticed that the voltage is normally around 114 volts. When I have my two
> AC window units on it drops to about 109-112. If I then turn my microwave
> on it drops to about 102-104. I tested this on two different circuits both
> on different sides of the breaker panel. This voltage sounds low to me.
> Is this normal or should I be seeing higher values?
It sound low to me, and I suspect there is a bad connection somewhere.
If you know how to be really careful around high voltage, you could
do the following.
Test the voltage at the breaker panel where the wires come in from the
meter. Measure on the wires from the meter themselves. If you see
the same drop there (Be Cafeful!), call the power company and
have them check their lines.
Next, check across the metal buss bars that those wires attach to.
If the last check was OK, but you have drop here, the screws
holding the wires coming in probably need to be tightened. If
no drop here, check at the output of each breaker, on the metal
of the breaker. If you find drop on a breaker, re-seat or replace
the breaker.
Then test the wire attached to the breaker, and tighten the wire
screw there if this is where the drop occures.
If all the voltages in the breaker box were good, the problem
is in one (or more) of the wiring circuits. You need to figure
out everything (outlets and lights) on each circuit. Turn off
the breaker, and see what doesn't work.
Does every electrical box on the circuit have the problem? If
not, you might be able to isolate the problem by guessing
what is wired to what. The problem is probably at the last
box that tests OK, or the first box that doesn't. Open up
each suspect electrical box on the circuit and tighten all
connections, then test again..
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| On Sat, 29 Jul 2006 21:04:28 -0400, "Bob Bins" <msgdev@hotmail.com>
wrote:
>I had my digital volt meter hooked up to two outlets during the day. I
>noticed that the voltage is normally around 114 volts. When I have my two
>AC window units on it drops to about 109-112. If I then turn my microwave
>on it drops to about 102-104. I tested this on two different circuits both
>on different sides of the breaker panel. This voltage sounds low to me.
>Is this normal or should I be seeing higher values?
See if you can find an IR (infrared) camera and look at your control
panel with your appliances running. I promise you that a drop from
114 to 102 is generating some heat, although it might not be in your
panel.
Carefully feel around for hot breakers and wires.
Complain about the voltage to your power company, but first ask them
if there is a charge.
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JimL wrote:
> On Sat, 29 Jul 2006 21:04:28 -0400, "Bob Bins" <msgdev@hotmail.com>
> wrote:
>
>
> See if you can find an IR (infrared) camera and look at your control
> panel with your appliances running. I promise you that a drop from
> 114 to 102 is generating some heat, although it might not be in your
> panel.
>
> Carefully feel around for hot breakers and wires.
>
> Complain about the voltage to your power company, but first ask them
> if there is a charge.
the power company will most likely tell him to get an eletrician out
there first,thats been my experience.
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| On 30 Jul 2006 14:53:02 -0700, "sym" <howiesm@yahoo.com> wrote:
>
>JimL wrote:
[color=darkred]
>The power company will most likely tell him to get an eletrician out
>there first,thats been my experience.
Probably true in many cities. Just a reminder that many
electrician now charge over $120 per hour with a $120 minimum for
showing up.
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| Edwin Pawlowski 2006-07-31, 3:25 am |
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"sym" <howiesm@yahoo.com> wrote in message
> the power company will most likely tell him to get an eletrician out
> there first,thats been my experience.
>
Maybe. I complained to the power company once. They told me it was
impossible to have the variance I was seeing. But it never happened again
after that. Coincidence?
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JimL wrote:
> On 30 Jul 2006 14:53:02 -0700, "sym" <howiesm@yahoo.com> wrote:
>
>
>
> Probably true in many cities. Just a reminder that many
> electrician now charge over $120 per hour with a $120 minimum for
> showing up.
wow i need to raise my prices
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