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Monitoring power by individual circuit

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Posted by Danathar on November 14, 2004, 8:04 pm
Please excuse the newbie question.... :)

Is there a way to monitor kilowat usuage PER CIRCUIT from the
circuitbreaker box? It would really be usefull if I could know how
much power is being used by circuit then it would be easy to break
down WHERE the most power is being used in the house.



Posted by m Ransley on November 14, 2004, 8:23 pm
Per plug in apliance use a Kill a Watt meter,  it is cheap and accurate.
A clamp on digital amp meter is ok if equipment is running. But to log a
circuit over time someone else will know.

Posted by Dale Farmer on November 14, 2004, 8:38 pm

Danathar wrote:

    For a one time measurement, a regular clamp on ammeter will do
the job.  Open up the circuit box ( Danger, live wires and terminals
will be exposed when you do this. ) and put the meter clamp around
the wire in question.  Repeat until you run out of circuits.  You
probably want to have some help doing this, as otherwise you will
be doing a lot of running back and forth.


Posted by Danathar on November 15, 2004, 1:57 pm
Thanks! I'm thinking there could be a market for a device that could
record and download the info to a computer. Then you could yell at the
daughter (or wife) when you see how much power that hair dryer is
using :)

Your suggestion definitely sounds a little dangerous. I'd probably
want to shut the power off first before doing it.

Posted by William P.N. Smith on November 15, 2004, 2:20 pm
 dougb@attglobal.net (Danathar) wrote:

Unfortunately, there isn't much between the Watts Up class products,
which require you to plug them in between the appliance and the wall,
and professional power data loggers, which cost more than your yearly
power bill.

You could get yourself a spare meter and base from
http://hialeahmeter.com/  and wire it into the various circuits in your
house one at a time...

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