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Elecromagnetic Radiation: CFL vs LED vs Incandescent
02-27-2012, 11:23 PM,
#10
RE: Elecromagnetic Radiation: CFL vs LED vs Incandescent
Quote:What is Electronic Smog?

There is hardly any place on earth without electric smog. The terminology covers different forms of radiation of fields and waves, which is why we need to differentiate. In the case of alternating current, which in the public power supply for instance changes direction 50 times a second, the frequency, i.e. the number of direction changes per second, is measured in Hertz (Hz). Up to 30,000 Hz (30 kHz) is considered as low frequency, over and above is considered high frequency.

When electric and magnetic fields are coupled, these are known as electro-magnetic fields. If energy breaks away from the conductor, radiation is produced, for instance in the case of radio, TV and mobile phone waves. Electric and magnetic fields have an effect on the human body: Up to 30 kHz, they stimulate nerve and muscle cells. Furthermore they heat the areas they enter. The best example is a microwave, where a thermal reaction takes place.

As to whether or not this is harmful depends on the radiation tolerance of each individual person and the specific radiation situation in the house. Should you suspect an increased or harmful exposure, we recommend that you consult an expert.
http://www.huelsta.com/int_en/service/inspiration/all-about-living/what-is-electric-smog/index.html

Electronic Smog Defined
http://www.copperwiki.org/index.php?title=Electronic_Smog
http://www.thefreedictionary.com/Electronic+smog

Compact Fluorescent Lighting (CFL) Downsides
http://peswiki.com/index.php/Directory:Compact_Fluorescent_Lighting_%28CFL%29_Downsides

CFL Autopsy
"8 grammes of waste are produced in the manufacture of the incandescent, but 128 grammes are produced in the manufacture of a Compact fluorescent of which 78 grammes are hazardous." (Save the Bulb CFL Autopsy) (Original information derived from spreadsheets prepared for the European Parliament Energy savings committee.)
http://savethebulb.org/CFL%20Autopsy.html (cited by PESWiki, 404)

Code:
What we are throwing away. . .

[photo of CFL Bulbs]

This is an Osram CFL from a few years ago that has stopped working. I cut the base in half with an angle grinder as a hacksaw would not cut the black insulating material in the bayonet connector. This rather brutal approach destroyed quite a few components on the board. This is basically a pretty crude electronic fluorescent gear that is not nearly as efficient as it could be as evidenced by the rather large choke, the thing that looks like a transformer with an iron core and copper windings at the back. This lamp (when it was working!) started with a brief flicker. One of the broken bits was a neon lamp as are found in old fashioned starters so I suspect this was part of a crude and inefficient capacitor start, these are also likely to fail before other parts of the lamp.

The weight of this lamp was 82 grammes, 20 grammes was the circuit board that may well have been working and certainly is in many lamps that are thrown away. The glass tube is 40 grammes, the metal lamp cap 6 grammes therefore 16 grammes of plastics derived from fossil fuels makes the remainder. The mercury content will be anything between 2mg and 5mg depending on the age and manufacturer of the lamp.

The construction of this lamp allows the electronics module to be easily separated from the tube however the plastic base is fixed to the tube with expanded foam so it would be difficult to separate the plastic and glass for recycling.

A typical equivalent Incandescent lamp weighs 34 grammes approximately 27 grammes of this being the glass envelope, cap approximately 6 grammes and approximately 1 gramme of metals including the filament.

If anyone can provide some good information on the embodied energy in these materials please let us know so we can do some arithmetic on the waste disposal issues.
Archive Found Here: http://web.archive.org/web/20080215141621/http://www.savethebulb.org/CFL%20Autopsy.html (no text match)

Quote:...Bulbs could be especially harmful if left on near a child’s head all night or used to read by for long periods by an adult. ...

Interesting point. I wasn't going to mention this but considering that point was brought up.

The larger health risk with any fluorescent tube beyond mercury, is found in the phosphors - they are rich in beryllium (a known carcinogen), europium, terbium and heavy metals like bismuth, cadmium and strontium found in the electronics.

Also found in CFL phosphors and electronics - Antimony (known toxin), lanthanum, manganese, tin salts, yttrium.
(ref)


Dimmer switches are brilliant and if you can get your hands on any long lasting light bulbs* you're saving not only the cost of electricity but on the bulbs themselves. Mirrors can work wonders too utilizing natural lighting from the sun and moon.
There are no others, there is only us.
http://FastTadpole.com/
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RE: Elecromagnetic Radiation: CFL vs LED vs Incandescent - FastTadpole - 02-27-2012, 11:23 PM

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