[Test-Equipment] Dummy load . repost
J. Forster
jfor at quik.com
Mon Feb 7 02:10:20 EST 2005
I answered in HTML and the server hashed it up.. hence the repost:
J. Forster wrote:
> Brian Clarke wrote:
>
> > There are two problems, John. Firstly, 'mineral oil' is defined differently in
> > different countries.Secondly, 'USP' has three meanings in my dictionary of
> > acronyms, none ofwhich has any bearing on laxatives or pharmacopoeia.
> USP = United States Pharmacopia
> > Please bear in mind that this list is worldwide and that your favorite
> > acronym is capable of multiplemisinterpretations.
> See here for alternate names:
>
> http://householdproducts.nlm.nih.gov/cgi-bin/household/brands?tbl=chem&id=126
> > A laxative is likely to form compounds with carborundum that wouldn'tenhance
> > heat transmission properties. And it's unlikely to have a prescribeddielectric
> > coefficient - whereas, transformer oil does.
> It is chemically pure (ie made by fractional distillation) mineral oil. I very
> much doubt that the dielectric constant of transformer oil is controlled, since
> it
> is essentially a non-issue at 50 or 60 Hz where most oil filled transformers
> are used.
> >Let's not confuse cheap with effective, eh?
> You are way off-base, and your comment is completely unfounded. It is a
> reccomended substitute for transformer oil by Heath among others. See:
>
> http://lists.contesting.com/archives/html/TenTec/1999-01/msg00234.html
>
> -John
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