Dirty Hydro?

[tleslie]

see if you can do the test at your neighbour.

if its ok there, then sound to me like you either have
something in your house that pulls up the ground in cycles,
as per your statement,
or you have a bum transform.

i could imagine a dehumidifer, or something with a motor,
that is pulsating on a motor restriction at 5t/s
pulling up your ground (old houses can have crappy or cheated grounds).

you could have a shit multimeter as well but i doubt that.

but i do my own house wiring, and have multimetered
many a home, i have never seen a cycle like your taking unless
there is some bad ass appliance near by.

but even with that cycle, most stuff in your home should work fine.
I'd be more concerned with why its doing for other reasons
and be proactive against something that could be bad.



-tl



On Tue, 2007-05-01 at 19:35 -0400, Scott Elcomb wrote:
> Hey all, hope thing's have been good for TLUGgers the last few months.
>  Quite a bit's happened on my end, having accumulated several thousand
> mail messages while I've been offline.  While I'm going through those,
> I'm hoping someone on the list might be able to answer a quick
> question...
> 
> I've moved back to Hamilton, into an older building.  The system I had
> was intermittently hanging, so I started to upgrade.  I've now
> replaced everything except the CD-RW drive but this new system is
> doing exactly the same thing (albiet much more frequently.)
> 
> It's been about 10-15 years since I've done serious electrical or
> electronics work and I'm not sure if what I'm seeing constitutes
> "dirty hydro."  I picked up a digital multimeter and started checking
> the outlets here - the voltages appear to be fluctuating between
> 118.5V and 120.5V roughly 5-8 times per second in steps of about +/-
> 0.35V.
> 
> Before I go purchase a line conditioner or an isolation transformer,
> does anyone onlist have any suggestions or comments?
> 
> As always, TIA!
> - Scott
> 

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