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Posted by H on June 22, 2007, 4:36 pm
Folks,
Firstly, thanks to all responders.
The problem was caused by the contractor who installed the line for the new
addition. He did, in fact, slice cleanly through the two 240V lines that
were behind the wall into which he drilled the hole.
The 11V, I was told by an electrician, actually means zero, since just about
anything, including one's own skin, has that much electricity in it. So,
despite the fact that I said continuity was tested, that was before I
understood that 11V could mean zero.
The original contractor came in and repaired it, firstly by cutting a hole
in the ceiling in the basement so he could see and confirm the damage, and
then by going upstairs into the kitchen, cutting a hole in the wale above
the problem and putting in a box in which the old lines were (presumably
correctly) spliced onto a new leads to go to the breaker box.
We have A/C and a dryer again, for which my bride is extremely grateful.
H
> In my breaker box, I have two 40A breakers side by side. One is for the
> A/C, one is for the electric dryer.
>
> Seemingly simultaneously, both of them experienced a loss of power (around
> 11V) on one leg. Thus, neither the dryer nor a/c work.
>
> Can anyone imagine how this could happen, seemingly simultaneously?
>
> H
>
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Posted by RBM on June 22, 2007, 5:13 pm
Glad you found it. That's pretty amazing, not to mention pretty bad luck.
The other thing that I find amazing, is that someone could cut through two
40 amp lines and not know it
> Folks,
>
> Firstly, thanks to all responders.
>
> The problem was caused by the contractor who installed the line for the
> new addition. He did, in fact, slice cleanly through the two 240V lines
> that were behind the wall into which he drilled the hole.
>
> The 11V, I was told by an electrician, actually means zero, since just
> about anything, including one's own skin, has that much electricity in it.
> So, despite the fact that I said continuity was tested, that was before I
> understood that 11V could mean zero.
>
> The original contractor came in and repaired it, firstly by cutting a hole
> in the ceiling in the basement so he could see and confirm the damage, and
> then by going upstairs into the kitchen, cutting a hole in the wale above
> the problem and putting in a box in which the old lines were (presumably
> correctly) spliced onto a new leads to go to the breaker box.
>
> We have A/C and a dryer again, for which my bride is extremely grateful.
>
> H
>
>
>> In my breaker box, I have two 40A breakers side by side. One is for the
>> A/C, one is for the electric dryer.
>>
>> Seemingly simultaneously, both of them experienced a loss of power
>> (around 11V) on one leg. Thus, neither the dryer nor a/c work.
>>
>> Can anyone imagine how this could happen, seemingly simultaneously?
>>
>> H
>>
>
>
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Posted by mm on June 22, 2007, 6:52 pm
What RBM said
>
>The 11V, I was told by an electrician, actually means zero, since just about
>anything, including one's own skin, has that much electricity in it. So,
>despite the fact that I said continuity was tested, that was before I
>understood that 11V could mean zero.
Not only that, you didn't understand what it means to check
continuity, and maybe you still don't. You don't check continuity by
finding 120 volts at one end and 11 at the other. Or even by finding
120 at both ends. You check continuity by disconnecting the hot end,
the end at the breaker, and disconnecting the dryer etc. at the other
end, and measuring the resistance, the ohms, from one end of the wire
in question to the other.
You coudl do this either by connecting two wires in the same cable at
one, and measuring the resistance between the two of them at the other
end. It should be zero or substantially less than an ohm. OR By
running your own wire from your owhmmeter to the far end of the wire,
and the other wire/test lead from your ohmmeter to the near end of the
wire, and measuring the resistance. It should also be zero or at
least substantially less than an ohm. If you use a continuity tester,
you can find continuity if the buzzer buzzes or the light glows.
You should never have told us you tested for continuity. Especially
since that statement confused people. All you did is test for
voltage, and you should have told us the details of that, but not used
the word continuity.
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Posted by mm on June 22, 2007, 6:52 pm
>Folks,
>
>Firstly, thanks to all responders.
But thanks for getting back to us. Much appreciated.
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Posted by Travis Jordan on June 23, 2007, 7:22 am
> The 11V, I was told by an electrician, actually means zero, since just
> about anything, including one's own skin, has that much electricity in it.
> So, despite the fact that I said continuity was tested, that was before I
> understood that 11V could mean zero.
Utterly incorrect on all counts. Please, next time learn how to use a
voltmeter and ohmmeter before asking for help.
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