RE: [ST] Electrics

[Rich Uncle <rich_triumph@xxxxxxxxx>]

- --- Chris Strizver <strizver@xxxxxxxx> wrote:
> Wow...it is 6.5 ohms/foot. From their website, it
> seems that the nichrome
> wire is designed for 115V ac circuits.
> 
> For example: Assuming your liner needs 50 Ft of wire
> and you want a 40 watt
> circuit, you need 3.6 ohms of resistance (at 12V).
> You could use a 28 or 29
> gauge copper wire, or a whopping 13 gauge nichrome
> wire. Looks like you'll
> be running real big wire, or lots of small ones.
> 
paraphrased from
http://www.ibmwr.org/otech/heatedclothing.html...  The
26ga nicrome (this is the thickness I ordered) is
2.598 ohms/foot, so 4 six foot strands connected in
_parallel_ yield about 4 ohms. (Each 6 foot strand
giving 15.58 ohms, 4 in parallel giving 3.9 ohms
total, for about 46 watts.) 

The key is wiring it in parallel.  

15.58 Ohms per circuit / 4 circuits = 3.895 Ohms

Also, the John Deere man charged me about $20 for the
RE11344 plug.  I guess prices have gone up since 23
Aug 1996 when the www.ibmwr.org article was written.

12 Volt LED, mini toggle, rubber cap for toggle, small
"project" box (hmmm... I wonder if my BSA "project"
would fit in there), and "lamp" type 2 conductor wire
purchased from Radio Schmack yesterday. Just waitin'
on the nichrome whar.

Rich

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