XPost: talk.politics.misc, alt.survival, alt.politics.usa
XPost: alt.science

https://techxplore.com/news/2024-03-arc-faults-electrical-safety.html

An arc-fault is an electrical discharge between two conductors
due to poor contact. These discharges cause sparks that can
reach temperatures as high as 1000 degrees Celsius, making
them one of the major causes of electrical fires. In the
United States, the National Fire Protection Association
(NFPA) estimates that 50 to 75 percent of all electrical
home fires are a result of arc faults. Arcing can occur
even in home appliances that operate at lower voltage
levels making the swift detection of an arc-fault is
essential for improving electrical fire safety.

A widely used circuit for detecting arc-faults is the
arc-fault circuit interrupter, which cuts off power
upon recognizing the distinctive waveform of low-voltage
arc-faults. However, it can cause accidental tripping
as some electrical appliances generate a waveform similar
to that of a low-voltage arc fault.

. . .

Look, copper particularly, though also aluminum wiring,
tends to oxidize at exposed points - conduction goes
down and down until it is not adequate for whatever
load is imposed at the end of the line.

Arc-faults are NOT a "short" - ergo ordinary fuses
and breakers cannot help.

In the 1950s, it was fairly common to SOLDER electrical
connections. This prevents oxidation. However since
then the most common approach is ordinary 'twist on'
splicers, often without any electrical tape as a
backup. THOSE connections can oxidize, perhaps kinda
rapidly, if heavier loads - like AC/Heating units -
exist.

The construction industry goes for the cheapest/quickest
method - which in this case ain't a really good thing.

Fixes ? Very difficult. Basically someone would have to
crawl through your attic, maybe tear out your walls, to
do a better oxygen-excluding connection job.

Look, that maybe 75% of home fires are caused by arc-faults,
this is a BAD problem, completely ignored in the name of
cheap/quick construction. The real price comes later
in the form of disasters and dead. What can happen at
your house can also happen in large apartment buildings
and business towers.

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

XPost: talk.politics.misc, alt.survival, alt.politics.usa
XPost: alt.science

On 3/5/2024 12:25 AM, 63h.1504 wrote:

https://techxplore.com/news/2024-03-arc-faults-electrical-safety.html

An arc-fault is an electrical discharge between two conductors
due to poor contact. These discharges cause sparks that can
reach temperatures as high as 1000 degrees Celsius, making
them one of the major causes of electrical fires. In the
United States, the National Fire Protection Association
(NFPA) estimates that 50 to 75 percent of all electrical
home fires are a result of arc faults. Arcing can occur
even in home appliances that operate at lower voltage
levels making the swift detection of an arc-fault is
essential for improving electrical fire safety.

A widely used circuit for detecting arc-faults is the
arc-fault circuit interrupter, which cuts off power
upon recognizing the distinctive waveform of low-voltage
arc-faults. However, it can cause accidental tripping
as some electrical appliances generate a waveform similar
to that of a low-voltage arc fault.

. . .

  Look, copper particularly, though also aluminum wiring,
  tends to oxidize at exposed points - conduction goes
  down and down until it is not adequate for whatever
  load is imposed at the end of the line.

  Arc-faults are NOT a "short" - ergo ordinary fuses
  and breakers cannot help.

  In the 1950s, it was fairly common to SOLDER electrical
  connections. This prevents oxidation. However since
  then the most common approach is ordinary 'twist on'
  splicers, often without any electrical tape as a
  backup. THOSE connections can oxidize, perhaps kinda
  rapidly, if heavier loads - like AC/Heating units -
  exist.

  The construction industry goes for the cheapest/quickest
  method - which in this case ain't a really good thing.

  Fixes ? Very difficult. Basically someone would have to
  crawl through your attic, maybe tear out your walls, to
  do a better oxygen-excluding connection job.

  Look, that maybe 75% of home fires are caused by arc-faults,
  this is a BAD problem, completely ignored in the name of
  cheap/quick construction. The real price comes later
  in the form of disasters and dead. What can happen at
  your house can also happen in large apartment buildings
  and business towers.

Excellent and useful information / post. Thank you for posting it.

--
You voted for student loan forgiveness. You got demographic replacement
and World War 3.

"Title 8, U.S.C. § 1324(a) defines several distinct offenses related to aliens. Subsection 1324(a)(1)(i)-(v) prohibits alien smuggling, domestic transportation of unauthorized aliens, concealing or harboring
unauthorized aliens, encouraging or inducing unauthorized aliens to
enter the United States, and engaging in a conspiracy or aiding and
abetting any of the preceding acts. Subsection 1324(a)(2) prohibits
bringing or attempting to bring unauthorized aliens to the United States
in any manner whatsoever, even at a designated port of entry. Subsection 1324(a)(3)."

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They try to silence your voice by calling you anti-free speech.

They try to take your voice claiming you are anti- democracy.

They always accuse their enemies of that which they themselves are guilty.

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--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)