jesse_c
New Member
- Joined
- Jun 23, 2022
- Messages
- 15
Here's something I found from China. It mentions "Compliance with UL1699B (Type 1)", which is promising
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Has anyone tried that thing out or found any better alternative? I'm also looking for a solution to work with my TIGOs for RSD.Here's something I found from China. It mentions "Compliance with UL1699B (Type 1)", which is promising
If it works out, I'm down to buy one. Just need to figure out how to get it to turn off power to my Tigos - haven't done much more than skim though their documentation at this point. Saw the below diagram and figured I'd just need the PLC Transceiver and the Monitor - just not sure what i'd need to do to get the monitor to send a signal to a relay or something to turn off the Tigos.I'm putting in an order for four of these. I only need one, as each unit can handle 4 strings. I'll hopefully be able to report back in the next few weeks, depending how long it takes to ship and when I have time to get it set up in between work and travel. If it works out, I can resell two or three of them. Will probably look for around 50 bucks shipped per unit, that would be pretty much my cost plus shipping.
The diagram you included doesn't have the arc fault monitor... those pieces are the Fonrich rapid shutdown system (SafeSolar) which Tigo already handles well.
This implies that you can have standard MC4 cables to the combiner box, but it must be in metal conduit (or buried) all of the way after that.
any input?
690.11 Arc-Fault Circuit Protection (Direct Current).
Exception: For PV systems not installed on or in buildings, PV output circuits and dc-to-dc converter output circuits that are direct buried, installed in metallic raceways, or installed in enclosed metallic cable trays are permitted without arc-fault circuit protection. Detached structures whose sole purpose is to house PV system equipment shall not be considered buildings according to this exception.
How should this read? Like this?
Below are permitted without arc-fault circuit protection:
- PV systems not installed on or in buildings
- PV output circuits and dc-to-dc converter output circuits that are:
- direct buried
- installed in metallic raceways
- installed in enclosed metallic cable trays
The Fonrich options that we were talking about above is promising - @jesse_c bought some, so we'll see how it goes. I'm interested in both a Ground Fault and Arc Fault solution for my String Inverter Configuration.maybe someone has a standalone AFCI solution for single off-grid inverter application that is not sunspec compliant. would appreciate the guidance.
Does a similar clause apply to RSD?