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USA Underwriters Lab regulatory bodyWithout going back over the entire thread, What or Who is UL?
(insurance linked)
Discuss AFDDs are a massive fraud in the UK Electrical Forum area at ElectriciansForums.net
USA Underwriters Lab regulatory bodyWithout going back over the entire thread, What or Who is UL?
Without going back over the entire thread, What or Who is UL?
Well, I don't think you would be to happy if I told you arcing is the end stage of joule heating...
Not so much comparing as showing proof of my claims. Manufacter backed UL and others were literally researching UK/EU power systems with the intent of emulating the system here in the US leading to electronic AFCIs. Now these same manufacturers turn to the IET/IEC claiming they have a new product solving a problem that no technology has ever tackled before.
I derailed in the hospital thread- but since the subject was touched I might as well let knowledge on this hot button issue spill out.
Regarding your statement about joules and heating, the AFDD detects an Arc fault before it reverts to combustion, doesn't it?Well, I don't think you would be to happy if I told you arcing is the end stage of joule heating...
Not so much comparing as showing proof of my claims. Manufacter backed UL and others were literally researching UK/EU power systems with the intent of emulating the system here in the US leading to electronic AFCIs. Now these same manufacturers turn to the IET/IEC claiming they have a new product solving a problem that no technology has ever tackled before.
I derailed in the hospital thread- but since the subject was touched I might as well let knowledge on this hot button issue spill out.
Ah right, thank you.USA Underwriters Lab regulatory body
Regarding your statement about joules and heating, the AFDD detects an Arc fault before it reverts to combustion, doesn't it?
That would be when the AFDD trips the circuit Off then before that happens.That what they claim.
Joule heating (aka high resistance connection) are responsible for most electrical fires and in of themselves do not produce arcing. When they do, it is often near the end stage (terminal is already glowing and falling apart), not the start.
That would be when the AFDD trips the circuit Off then before that happens.
Perhaps now, but give it time. They will not only become mandatory, but eventually require self test logic (planed obsolescence) with a slew of devices to also follow. The American NEC is already a product catalog and getting worse each cycle. 2020 is going to be raunchy.
what about an arc L-L or N-N? e.g. on a fractured cable.Yes, and if twin and earth is damaged a parallel arc is between two points: live to earth or live to neutral. Live to earth is covered with the RCD and breaker coil, live to neutral via the breaker's magnetic trip coil.
So any parallel protection an AFCI offers is redundant at best.
what about an arc L-L or N-N? e.g. on a fractured cable.
LOL- asking me for a location We can still be friends though
Not being that nosey, just getting a feel for the bad habits you may have picked up.LOL- asking me for a location ...
I have read the thread and it has connotations with other fables I read such as "man did not set foot on the moon"or "the illuminati are hell bent on controlling this planet," (one world government)
Conspiracy theories abound and conspiracy theorists are ever ready to find motive where none may exist
The Iet (bless em) are not anything other than a bunch of sometimes impressionable folk, who happen to have lived their lives(like us) thinking electrons,they are not best placed to accept nonsense too often
They have been and will be susceptible to dodgy influence on occasion but not where technical issues are concerned
The concern in this thread smells like little more than conspiracy theory and big business is on the prowl mentality
Not being that nosey, just getting a feel for the bad habits you may have picked up.
(touch testing for 120V to earth !)
Helps us chose relevant advice.
Reply to AFDDs are a massive fraud in the UK Electrical Forum area at ElectriciansForums.net
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