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From: Robert Carnegie <rja.carnegie@gmail.com>
Newsgroups: rec.arts.sf.written
Subject: Re: The insane progress nobody is talking about
Date: Mon, 1 Jul 2024 16:04:09 +0100
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On 25/06/2024 16:34, Paul S Person wrote:
> On Tue, 25 Jun 2024 08:56:17 -0500, "Michael F. Stemper"
> <michael.stemper@gmail.com> wrote:
> 
>> On 20/06/2024 11.21, Paul S Person wrote:
>>> On Thu, 20 Jun 2024 02:59:25 GMT, Random <random@who.cares> wrote:
>>
>>>> A conventional bulb's filament is not sensitive to AC voltage fluctionations,
>>>> where the conversion electronics is. My guess is that your wiring to that
>>>> light is causing voltage dips and is stressing the electronics in the LED bulb
>>>> base.
>>>
>>> I've seen a similar claim about timers that actually count
>>> cycles-per-second: if those vary then the timer misperforms.
>>
>> This isn't really an issue in North America. According to NERC[1], frequency in
>> the Eastern Interconnection (EI) is above 59.972 Hz 95% of the time. This is
>> 99.95% of nominal frequency, or an error of 28 mHz.
>>
>> If frequency sat that low for a 24 hour period (which it doesn't; frequency error
>> regularly crosses zero), it would be a loss of 40 seconds in a day.
>>
>> As a matter of fact, a few years back, the EI had an ongoing problem with frequency
>> being high: 3 mHz fast as a sustained average over several years. This was considered
>> a significant enough issue to require an investigation[2].
>>
>> If uncorrected, it would have caused clocks to gain over 4 seconds per day. This
>> led to regularly implementing Time Error Correction. In this case, that meant a
>> coordinated (across the EI) reduction in generation to reduce frequency until the
>> time error crossed zero again.
>>
>> Four seconds error per day is considered a problem. If you live in North America,
>> you can count[3] on your analog clock.
> 
> Three things:
> 
> -- I was talking about a timer, not a clock. In particular, a timer
> controlling our porch light, when went wonky after about 10 years. It
> could, of course, have simply aged out, or my switch to CFLs may have
> been responsible, who can say? And the timer was put in in the 90s.
> Still works fine as manual switch, though.
> 
> -- My memory is that our City Light was reducing the CPS deliberately
> -- or allowing it to fluctuate as it chose -- for some reason.
> 
> -- Seattle is not in the Eastern Interconnection. Not that I think
> whatever Interconnection it /is/ in does any different than the EI.
> 
> Summary:
> -- wrong device
> -- possible misapplication of modern conditions to the past
> -- wrong part of country

In the 1990s, I'd expect your device to have
its own microprocessor clock,,but I suppose
you'd know.

I think I heard that fluorescent and CFL lamps
do create a sort of anti-signal that confuses
an electricity meter - this may be not true at
all, but I can see it upsetting a clock, as well.
You could try LED.

I think I've got one CFL, bathroom, that won't
die.  It's slightly annoying, as it's the type
that takes a while to be bright enough to read by.