Wow. OK Ray.
This issue of 100% rated under continious use is interesting. Thanks for
helping me get my head around it.
The exception in 210.19 is certainly explicit. Too bad, for this one
man, the exception in 690.8 is less so.
Mark
On 8/23/2014 10:35 AM, Ray Walters wrote:
The 100% exce
The 100% exception is listed in 2 places:
690.8(B)(1) which sizes the conductor, and 690.9(B) which sizes the OCD.
Article 210 doesn't apply, as that is for branch circuits, not PV source
circuits.
690.8 basically walks you through conductor sizing. 690.8(B) requires 2
calculations one for B(1)
HI Mark,
I"ve been having this discussion with some others.
690.9B I think means that the 2nd 125% is for breaker derating.
I have looked and can't find anywhere in the code about conductors being
derated for continuous use. Other deratings yes, temp, conduit etc etc.
But there are many othe
Ray,
I can't follow you all the way down that path.
Is an insulated wire conductor permitted to be use at 100% of it's
rating under continuous operation? No. The ampacity is reduced and the
conductor must be up-sized. Hence, for a defined load (Isc * 1.25),
under continious operation, the con
Hola,
I'm looking for a working ASE 300 module @ nominal 12V. And it needs to be
with the clear, not white, encapsulant.
Please contact me off-list if you happen to have one or know someone who
does.
Thanks,
marco
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