All: Solar Edge, the manufacturer of solar panel systems, has informed me that they will be installing RFI suppression on a neighbors installation to stop the RFI affecting my station. The job will t
He's 'done many in the past'???? then he should be able to supply a couple references that you can check with! David Robbins K1TTT e-mail: mailto:k1ttt@arrl.net web: http://wiki.k1ttt.net AR-Cluster
"He's 'done many in the past'???? then he should be able to supply a couple references that you can check with!" And, also explain why it's an ongoing problem with the manufacturer. Kurt ____________
Author: "EDWARDS, EDDIE J via RFI" <rfi@contesting.com>
Date: Wed, 16 May 2018 15:57:23 +0000
Isn't this issue similar to the old TV susceptibility issue? TV manufacturers don't want to spend the added dollars putting the filtering on all TV sets when it is needed on so very few to block RFI
Regrading RFI from solar panels, the legislature in California has passed a law that will require solar panels to be installed on all new home constructions starting in 2020. Secondary gripe is tha
Magical-thinking social engineers never apply the test of the logical-extreme/never trouble themselves with unintended consequences ... Sigh. OTOH ... there may be a common noise signature that might
There is a good QST article here: APR 2016 -/QST/(PG. 33) Can Home Solar Power and Ham Radio Coexist? (Feature) *Author:*Brock-Fisher, Tony, K1KP and here: http://rsgb.org/main/files/2014/02/QST20Sol
I would change the word "good" to "flawed." The best things about it are that 1) it emphasizes the importance of twisted pair and shielding for all wiring carrying noisy current; 2) that the system a
To clarify, the http://rsgb.org/main/files/2014/02/QST20Solar20April2020165b25d.pdf article does say that the components are manufactured by SolarEdge. I talked to the Chief Technical Officer at Sola
"it emphasizes the importance of twisted pair and shielding for all wiring carrying noisy current" Which reminds me, how does this work for AC mains feeding various noisy things, such as LED lighting
Which reminds me, how does this work for AC mains feeding various noisy things, such as LED lighting? The same -- both are fundamental physical principles. In one case the noise is riding on DC, in t
"PVC conduit does nothing, and twisting kills only the differential component. Only steel conduit provides shielding. And where it leaves the shielded partition, there must be a common mode choke." I
"it emphasizes the importance of twisted pair and shielding for all wiring carrying noisy current" Which reminds me, how does this work for AC mains feeding various noisy things, such as LED lighting
I don't know. I've never thought about doing that. It would be much harder to pull than individual conductors and it would be a waste of conduit fill capacity. Running twisted separate conductors in
I believe the issue is conductor heating. Sheathed cable has to be in open-air to maintain its rating. Conduit that encloses it impacts air flow. Someone advise if my understanding is incorrect.
Flawed is a great descriptor for that QST article. Read the author's own conclusion at the end... The article needed some serious peer review which clearly didn't occur. I think he encountered some u
Author: "Donald W. Kane via RFI" <rfi@contesting.com>
Date: Thu, 17 May 2018 14:59:38 -0400
The NEC does not prohibit type NM from being installed in conduit (as long as conduit fill limits are not exceeded) and, in fact, requires it (or other protective means) in 334.15(B) for certain inst
Tnx for the reference. That led to a search and it's always interesting to study the NEC. Some smart folks are behind it. Aside from damage due to overfill, is the fill limit meant to insure no tem
"Correct me if I am misremembering, but isn't running Romex in conduit a Code violation?" NO! Absolutely NOT! In fact, in some instances, it's required. During the transition from bare wires, to insu
All: The RFI repairs scheduled for May 29th have been postponed. Solar Edge informed my neighbor that a new date will be set for next week. I'll post all details once the repairs are made. Tony -K2MO