Article View: misc.consumers
Article #5285Re: fluorescent lights and my brain
From: Bill Mayhew
Date: Thu, 28 Apr 1988 02:34
Date: Thu, 28 Apr 1988 02:34
20 lines
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1535 bytes
In my last article I said that I believed that phase was irrelevent with regards to fluorescent lighting. Perhpas true with single or split phase wiring. If the tubes were fed from 240 or 480 volt three phase circuit, with correct wiring, you could get 360 flashes a second, not true? Since the three phases are separated by T/3, there would be a totoal of 6 peaks (3+ and 3-) per T, separated by T/6. In this case, T=1/60th sec, the fundamental period of the power line frequency (in most, if not all of the USA, that is). As I mentioned, we tried hooking tubes up to a 120 volt single phase circuit, and it didn't seem to effect the signal that we picked up on a photo diode positioned below the tubes. We got the same shape 120 Hz waveform either way. Since it was an impromptu experiment, we did not have a solid state ballast handy for comparison. They don't trust us with the big toys, so we din't have the ability to try a three phase set-up. --Bill wtm@neoucom.UUCP
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Path: arc1-ca.pugleaf.net!utzoo!mnetor!uunet!husc6!bbn!rochester!udel!gatech!mcnc!decvax!mandrill!neoucom!wtm From: wtm@neoucom.UUCP (Bill Mayhew) Newsgroups: misc.consumers,sci.electronics Subject: Re: fluorescent lights and my brain Message-ID: <1144@neoucom.UUCP> Date: 28 Apr 88 02:34:11 GMT References: <530@scourge> <1182@ssc.UUCP> <1532@dataio.Data-IO.COM> <1143@neoucom.UUCP> Organization: Northeastern Ohio Universities College of Medicine Lines: 20 Keywords: eyes head ache electricity Summary: Did I goof in my last article?