19 Feb
2006
19 Feb
'06
11:18 a.m.
They are--probably around $5 in single-unit quantities.
I use one on my
automatic dishwasher.
It's the hospital-grade receptacles and plugs that are dear here. Aside
from an additional endorsement and a different color, I don't know if they
differ much from the ordinary consumer grade stuff.
Cheers,
Chuck
For anything except the most basic use, get the commercial grade. We had big problems at
the computer lab at my school because the original electrician used the cheap receptacles,
and they started tripping the breakers last year . . .
I think most of the plugs you can get are pretty well made, though. Expect to spend about
$7-$10 for a grounding plug with screw terminals.
19 Feb
19 Feb
11:44 a.m.
On 2/19/2006 at 1:18 PM compoobah at valleyimplants.com wrote:
For anything except the most basic use, get the
commercial grade. We had
big problems at the computer lab at my school because the original
electrician used the cheap receptacles, and they started tripping the
breakers last year . . .
I think most of the plugs you can get are pretty well made, though.
Expect to spend
about $7-$10 for a grounding plug with screw terminals.
I don't understand how a receptacle can trip a circuit breaker. At worst,
it would seem that it would fail to make contact or have high resistance
contacts.
Hospital-grade receptacles are distinguished by "Hospital Only" or
"Hospital Grade" printing and a green dot. $30 retail for a duplex
receptacle is pretty typical.
Whilst browsing around, I discovered another bit of audiophile folly.
CRYOGENICALLY TREATED AC PLUGS AND RECEPTACLES:
http://www.audioexcellenceaz.com/acproducts.htm
It seems now that solid-silver speaker wire isn't sufficient.
Unfortunately, the site shown above doesn't specify what's to be used for
wiring between the plug and receptacle. It's pretty safe to assume that
it's not zip cord!
Cheers,
Chuck
12:47 p.m.
I don't understand how a receptacle can trip a
circuit breaker. At worst,
it would seem that it would fail to make contact or have high resistance
contacts.
Well, if the insulation carbonised and became slightly conductive, it
could pass enough leakage current to trip an RCD/RCCB/ELCB/whatever it's
called thise week.
I once witnessed a metalclad socket outlet fail in the UK. Apparently,
repeated unplging of high-power devices without turning off the built-in
switch (UK socket outlets often contain a double-pole switch) had either
depostied enough metal on the insulator to become conductive, or had
carbonised the insulator. Anyway, the resulting failure caused a
spectacular arc that lasted for several minutes.
Hospital-grade receptacles are distinguished by "Hospital Only" or
"Hospital Grade" printing and a green dot. $30 retail for a duplex
receptacle is pretty typical.
Whilst browsing around, I discovered another bit of audiophile folly.
I call such people 'audiophools' :-).
CRYOGENICALLY TREATED AC PLUGS AND RECEPTACLES:
http://www.audioexcellenceaz.com/acproducts.htm
It seems now that solid-silver speaker wire isn't sufficient.
Unfortunately, the site shown above doesn't specify what's to be used for
wiring between the plug and receptacle. It's pretty safe to assume that
it's not zip cord!
Just out of curiousity, what wire is supposed to be used between the
power stations (generatiing stations) and substations (transformer
stations), and between the substation and your house?
My view is that if your audio amplifier is so badly designed that the
mains connector makes a difference to the final sound then you should
start by re-designing the amplifier.
-tony
7:59 p.m.
New subject: GEM Developers Kit - clarification
This is an 8086 developers kit... still shrink-wrapped.
20 Feb
20 Feb
4:14 a.m.
New subject: GEM Developers Kit - clarification
Hi Gavin,
I have a pretty nice collection of GEM software for both 68k and
x86 , and would love to get this from you if still available.
Thanks
Rob
On Feb 19, 2006, at 10:59 PM, Gavin Thomas Nicol wrote:
This is an 8086 developers kit... still
shrink-wrapped.
7:51 a.m.
New subject: GEM Developers Kit - clarification
If No-One expresses an interest, I'd be sure to take it.
Just that I think there are others that would be more interested
than myself.
Good Luck,
John A.
----- Original Message -----
From: Gavin Thomas Nicol <gtn at mind-to-mind.com>
To: General Discussion: On-Topic Posts Only <cctech at classiccmp.org>
Cc: <cctalk at classiccmp.org>
Sent: Sunday, February 19, 2006 10:59 PM
Subject: GEM Developers Kit - clarification
This is an 8086 developers kit... still
shrink-wrapped.
10:35 a.m.
On 2/19/2006 at 8:47 PM ard at p850ug1.demon.co.uk wrote:
Well, if the insulation carbonised and became slightly
conductive, it
could pass enough leakage current to trip an RCD/RCCB/ELCB/whatever it's
called thise week.
Slightly OT: Back in the 1950's, aluminum/aluminium was introduced as
residential house wiring in the US. As it had been a proven medium for
long-distance power transmission, the material was viewed as a more
economical alternative to copper. Along with the new wiring, new
receptacles with a different clamping mechanism were specified.
Unfortunately, many home builders (and inspectors) were completely ignorant
of the second part of the equation, with the result that cheaper
copper-based receptacles were introdced in many thousands of new homes.
Eventually, the combination formed an ohmic contact of not insignificant
resistance and a rash electrical fires ensued. Public safety advisories
were issued and many electricians made a nice living retrofitting the
proper fixtures. One alternative was a copper-to aluminum pigtail that was
attached by means of a special crimping tool, allowing the existing fixture
to be used.
I used to run across the "intended for Al wiring" fixtures at the hardware
store quite often, but I haven't seen one offered for sale in quite a few
years.
Cheers,
Chuck
6925
days inactive
6926
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6 comments
6 participants
participants (6)
-
allain＠panix.com -
ard＠p850ug1.demon.co.uk -
cclist＠sydex.com -
compoobah＠valleyimplants.com -
gtn＠mind-to-mind.com -
rborsuk＠colourfull.com