AFDD nuisance trip inquiries are a daily affair @ NEC chatrooms
All manner of conjecture are usually entertained.
There are 'testers' marketed by the same manufacturers of them , but simply looking for something parallel Vs series usually reveals the problem
That our system incorporates a...
Simply that you question the technology
You see, we can not , not publicly , not in any trade rag, nor at any convention, etc.
All the nay sayers here have been silenced
It's been grass roots , all on this god forsaken 'devil box' , for some it's been well over a decade. Others i know of...
An apt thesis Darkwood
One fundamental stands out
DC ionizes far more than AC
Our NEC mandated all PV systems incorporate AFDD protection a few cycles ago...iirc it's 690.12
Nobody argued it
~S~
20 yrs ago AFDD manufacturers took out full page ad's of FF's holding sooty children as an advertisement here....
Well, if you work in the states, you know profit is cloaked in the guise of safety
It's big biz, which is where we fall into the altruism rabbit hole
Many examples exist...
I remember, but can't find it Cookie :(
I'd simply say ,anyone watching our system will realize deregulation & acquisitions have snowballed to total control and influence here
~S~
Further.... UL1699, it seems to have holes one could launch a cow through in terms of variables.
To my understanding (which can be confronted) the chief operational component to all 'enhanced OCPD protection' is the time honored toroidal coil , needing all conductors to 'sense'...
As to stats, we do know of one Chicago spark /firefighter who took the time to reveal them on NEC forums
The thing is , we are 50 odd fiefdoms in the consideration of electrical bureaucracy's adoption ,licensure ,inspection ,as well as the collection of fire forensics , a rather broad...
We have no reason to purposely mislead you Darkwood.
What we do understand is , coropratism has drowned out the nay sayers here , you folks have a better grasp on the theory the we do, and perhaps your system allows for scrutiney
I'll try and hit on points asked....
First, know that...
I'm a Yank spark, the reason I (and Cookie) are here is because we've been witness to an entire history of fraud in the US that is now spreading itself globally.
If you'd like more specifics, we can easily bore you for pages.
But the thing is, we are here because we need your help...
Unless the poco has a very bad day, mother nature has it in for you, or you've gone wild with some sort of tesla coil install, 15KV just does not exist in the average dwelling ~S~
They use a 'simulator' , which introduces 15KV to a piece of zip cord with a cut in it, wrapped in flammable tape.
Of note is that UL created , vs testing to a standard here.
Which is unprecedented
~S~
By far and large & way past Utubes, I'm finding customers that come from HD (abbreviated because i don't know if forum rules allow me to post it) having witnessed some electrically wired 'display model' as the gold standard.
I don't know who wires them , electrical isle employee? corporate...
I agree the Utube crowd often forwards 'guidance' we as sparks are confronted with .
I guess those foisting it upon us never think or care about their liability in doing so.
I also agree a non-spark could have an issue with what is simply a 'rough job' ,in fact our NEC has a 'neat &...
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