I assume that the TARDIS wiring plan is more complicated than external
appearances suggest.
Ed Price
WB6WSN
Chula Vista, CA USA
-Original Message-
From: Ted Eckert [mailto:07cf6ebeab9d-dmarc-requ...@ieee.org]
Sent: Thursday, December 15, 2016 12:20 PM
To:
Some wiring can get more complicated. J. R. R. Tolkien's house had 9 rings for
the humans, 7 for the dwarves and 3 for the elves. I presume that there was a
fairly large circuit breaker for the one ring-main to rule them all. I heard
that the electrician kept muttering something about his
Oh, you "naughty boy"J.
But you are "forgiven" (at least on THIS side of the "Pond"!) - "Britain
rules the Wires" (if not the Waves, anymore L)!
John E Allen
W. London, UK
-Original Message-
From: Brian O'Connell [mailto:oconne...@tamuracorp.com]
Sent: 15 December 2016 19:08
Ahem, please forgive me NFPA, for I have sinned...
Wired the 120V service to my shop building in ring topology. Single 240V/40A
breaker to the ring where enters building, and each 20A outlet has a 12A 'T'
hi-break line fuse. The only hi-X load is small drill press, so no motor issues.
The 240V
Ralph
Following on from John W's post, some larger properties will have more than
2 ring-mains, plus a number of dedicated branches/spurs/radials for larger
loads such as cookers, fixed water heaters and so on. In additional
branches/spurs/radials can be used for areas where the ring approach
Yes, that's exactly how it works. A small house would have two rings. Fused
plugs rated at 3 A, 5 A and 13 A are sold, and you can get 1 A fuses as
well.
With best wishes DESIGN IT IN! OOO Own Opinions Only
www.jmwa.demon.co.uk J M Woodgate and Associates Rayleigh England
Sylvae in aeternum
An interesting design philosophy which has benefits, but it seems to rely on
pluggable appliances having an appropriate size fuse in their cordage.
You could for example wire an entire house with 3 or 4 of these circuits,
rather than a panel full of circuit breakers so common in N.Am
Ralph
I’m not surprised that TUV-SUD (and quite a number of other German, and
Norwegian, certification organizations in particular) are seen to be very good
in this area because they have been working with many of their opposite numbers
in other countries in worldwide regs and certification for far
I have found TÜV SÜD to have the most comprehensive resource for Global
Market Access:
http://www.tuv-sud.com/activity/global-market-access
They have a webpage for each country, as well as a 190 page downloadable
guide, "Quick Access to Global Markets".
They have a research team in China that
So, the question then becomes, for the many of us who have more work that
people, who are your trusted go-to partners for help on requirements,
interpretations (legal or otherwise), and execution on behalf of your company?
I am always on the lookout for good help as well as best practices and
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