[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [TCML] pig Jacobs



Yes. Likely a nichrome element. But regardless of probability I like to swing to the side of safety for more reasons than just the element.

Take care,
Bart

Mddeming@xxxxxxx wrote:
In a message dated 11/26/07 11:29:50 P.M. Eastern Standard Time, bartb@xxxxxxxxxxxxxxxx writes:

Hi  David,

Well, 50A is pretty high for a simple jacobs ladder. Putting the element in a cool bath is a good idea. The pig isn't what will fry. In the worst case scenario, the element will fail and remove the primary limiting device. In that case, the only limiting is the arc impedance itself. You would recognize this by a big change in the arc (brighter, hotter, faster). The breaker may not trip, so if you recognize any change, shut down the pig yourself.

Take care,
Bart


Hi Bart,
Aren't high power resistive elements usually high-R wire, possibly on ceramic form, and therefore fail open rather than short out? Matt D.



**************************************Check out AOL's list of 2007's hottest products.
(http://money.aol.com/special/hot-products-2007?NCID=aoltop00030000000001)
_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla



_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla