Armed Polite Society
Main Forums => The Roundtable => Topic started by: Hawkmoon on December 18, 2017, 06:21:45 AM
-
... I don't think it means what you think it means.
The word for today is "redundant."
http://www.newser.com/story/252972/fire-blamed-for-11-hour-outage-at-worlds-busiest-airport.html
Atlanta airport out for eleven hours due to a fire that took out the "redundant" electrical supply circuits. Here's a clue for Georgia Power: If a single fire can take out both/all of your circuits, you do NOT have a "redundant" system. A recent project I worked on involved a major rail repair facility. We had redundant power -- two completely separate services into the rail yard, fed from different sides of the yard through totally independent transformers and switchgear. The only way the yard is going to lose power is if the entire regional grid goes down ... at which point the small building-sized generators kick in.
-
Another reason I avoid ATL.
-
How about "supposedly redundant?"
My favorite distorted word meaning is "epitome."
There are others.
And the distortions are entering the dictionaries as secondary or "or" meanings.
Soon every word will mean anything and we'll be back to using hieroglyphics. Note the extensive use of icons nowadays.
And note where we're headed:
"
(https://pixfeeds.com/images/5/278438/320-531057456-egyptian-hieroglyphics-symbols.jpg)"
^ Translation: "The resistance value shown in this circuit is for the birds and I had to struggle to recalculate the proper value working backwards from the power rating and the voltage needed from the voltage divider..."
The article then devolves into a discussion of the capacitive reactance at that frequency. The pictograph for "capacitive reactance at that frequency" is the eighth symbol from the left in the top row.
(https://cdn1.iconfinder.com/data/icons/emoticons-glyph-inverted/2048/1656_-_Bye-512.png), 230RN
-
looks like a test run for a terror attack.
-
I see the glyph for "birds," but what's with the moose in the seventh place, second to bottom row? Does something eventually equate to moose *expletive deleted*it?
-
in the top row.
Row? Do you mean column? Because it is obvious that those signs should be read in columns, not rows.
-
I don't see a møøse glyph.
-
I see the glyph for "birds," but what's with the moose in the seventh place,
When the moose is in the seventh place,
And Jupiter aligns with Mars ...
-
Row? Do you mean column? Because it is obvious that those signs should be read in columns, not rows.
Just indicating a position according to listing names in a photograph. As in, "standing, top row left to right..."
Not a moose. An antelope, standing for an antinode in the discussion of standing waves.
-
I don't see a møøse glyph.
A møøse once bit my sister.
-
A møøse once bit my sister.
Mynd you, møøse bites Kan be pretti nasti.
-
Atlanta airport out for eleven hours due to a fire that took out the "redundant" electrical supply circuits.
Air travel has always had a problem with that concept, just like the triple redundant hydraulics running side by side so anything that damages one line will get all three.
-
Air travel has always had a problem with that concept, just like the triple redundant hydraulics running side by side so anything that damages one line will get all three.
After the DC-10 crash at Souix City the FARs changed to eliminate that issue.
-
After the DC-10 crash at Souix City the FARs changed to eliminate that issue.
I'm thinking there was at least one other that managed to land intact long before that. If memory serves, a commuter size turboprop. Apparently it wasn't a big enough issue until it killed some people.
And I recall one where some redundant-and-critical power lines were in the same harness, and a fault in one ended up burning the insulation off the other and causing a total failure.
It's like they failed to grasp the concept of why physical separation of the backup components is often the most important factor in a redundant system.
-
When the moose is in the seventh place,
And Jupiter aligns with Mars ...
I laughed but I'm a "Virtual cesspool of useless knowledge," most of which is classic rock music trivia...
-
It's like they failed to grasp the concept of why physical separation of the backup components is often the most important factor in a redundant system.
I suspect the engineers know and understand, but then some bean counter looks at the preliminary design and says, "We can save 15 cents per plane if we run all those wires in the same harness instead of separately -- do it."
-
Mynd you, møøse bites Kan be pretti nasti.
No realli! She was Karving her initials on the møøse with the sharpened end of an interspace tøøthbrush given her by Svenge - her brother-in-law - an Oslo dentist and star of many Norwegian møvies: "The Høt Hands of an Oslo Dentist", "Fillings of Passion", "The Huge Mølars of Horst Nordfink"...
-
Georgia Power says it believes the "very rare" outage was the result of a fire started by an equipment failure, the Atlanta Journal-Constitution reports. "This fire was located adjacent to redundant circuit cables and switching mechanisms serving the airport and those cables were damaged, resulting in the outage and loss of redundant service method," the utility said in a statement.
I am a little confused by this quote. Did the first damage the power feed cables or the redundant power switch-over controls?
-
I am a little confused by this quote. Did the first damage the power feed cables or the redundant power switch-over controls?
Doesn't really matter. The basic rule of redundancy is that if one issue can take out the system ... it's NOT redundant. They only had one fire ...