>-----Original Message-----
>From: Jim Freeman [mailto:[email protected]]
>Sent: Friday, June 14, 2002 12:18 PM
>To: Scott Douglas
>Cc: [email protected]
>Subject: Re: Magnetics testing
>
>
>
>Hi All,
> A better place would be inside an aluminum smelting plant.
>The pot lines use
>a voltage of 600v with an amperage 0f 100,000 amps. Lots of
>gauss there. I once
>worked as an engineer on a pot line and none of my mechanical
>watches would keep
>proper time because of the magnetic fields.
>
>Thanks
>Jim Freeman
>
>Scott Douglas wrote:
I once toured a steel mill (Interlake?) in Chicago which had a huge AC
powered furnace. The high point of the tour was standing under the bowl of
the furnace, looking up at the 30-foot wide bowl and huge trunions, and
watching the looped power cables dance in the Earth's magnetic field as the
servomotors controlled the electrode-to-puddle arc distance.
There's probably a law against that now!
Ed
Ed Price
[email protected]
Electromagnetic Compatibility Lab
Cubic Defense Systems
San Diego, CA USA
858-505-2780 (Voice)
858-505-1583 (Fax)
Military & Avionics EMC Services Is Our Specialty
Shake-Bake-Shock - Metrology - Reliability Analysis
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