permaculture

[Thomas Allen <thallen@nwlink.com>]

Several years ago I was hunting down the source of interference to my  
audio recording equipment. I had replaced all the incandescent bulbs  
with CFs a few weeks before and with wet weather the problem became  
intolerable. I suspected the CF bulbs and borrowed a Fluke Power  
Quality meter to test them. The switching power supplies in them  
produce odd-order harmonics clear off the end of the scale and  
introduce a phase shift in the source power that reduces power factor  
to about 0.7.  That power factor it totally unacceptable to utilities  
and if you're an industrial site they'll make you correct it by  
installing large, expensive capacitors. I mentioned this to a City   
Light muckei muck who said, "Oh really!" and went of as though he  
intended to do something about it. I never heard more.

I still use the CFs on hand but haven't bought more. You off-grid  
folks note that they will produce nearly as much electromagnetic  
interference as a square-wave inverter. Tube type units with ballasts  
are no problem.

--Tom Allen


On Nov 14, 2011, at 7:19 AM, Joan Huyser-Honig wrote:

> Great story! Thanks for posting it. It really captures your message  
> and
> personality.
>
> Joan Huyser-Honig
> Huyser-Honig Creative Services
> 1016 Oakdale Street SE
> Grand Rapids, MI  49507
>
> Telling Your Stories, Advancing Your Cause
>
> Phone: (616) 241-0931 x11
> Fax: (616) 241-1500
> joan@hhcreatives.com
> www.hhcreatives.com
>
> -----Original Message-----
> From: permaculture-bounces@lists.ibiblio.org
> [mailto:permaculture-bounces@lists.ibiblio.org] On Behalf Of paul  
> wheaton
> Sent: Sunday, November 13, 2011 10:27 AM
> To: permaculture
> Subject: [permaculture] I made the front page of my local newspaper
>
> And, of course, I got the word "permaculture" on the front page with  
> me.
>
> http://missoulian.com/news/local/missoula-man-says-compact-fluorescent-light
> -bulbs-not-a-bright/article_127ed1d4-0da1-11e1-9dd3-001cc4c03286.html
>
> Please forward far and wide.  I like the idea that my local  
> newspaper sees
> thousands of people looking at this article and thinks "hey, we  
> should talk
> about permaculture more often."
>
> --
>
> Sign up for my daily-ish email, or my devious plots for world
> domination:  http://www.richsoil.com/email.jsp
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