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Jay-Dee

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  1. To add to Barry above... having just had my 2nd system signed off yesterday by a 3rd party Electrical company for COC and registration with CoCT NOTE: I am also not a licensed electrician and the below is from my personal experience with one Yes Separate spike (for CoCT at least). If you have multiple arrays separate from each other, they each will need their own spike. For what it is worth, the reason behind this is there is a max resistance allowed on an earth connection and generally the distance from panels to DB to original spike will create a higher than allowed resis
  2. @profa I think we are both getting a little muddled here.. I did say 6mm but should have said 6mm2. I left out the "2"'s by accident... If it is was a 6mm cable in diameter, it would have a cross section measuring 28mm2 and that would be a hard solar cable to find. Perhaps, I am the one missing the bus and need some schooling.. Most online retails spec to up to 70A for 6mm2 cable, Have a look at Metric Cables who are very well known... http://www.metriccables.co.za/flexible-solar-cable/ They spec to 54A on 6mm... So my 53A is more conservative. Yes, over 20m there will
  3. I am not 100% sure but from my understanding it is now a legal requirement to have a DC breaker (and fireman's switch) installed on a PV array over a certain (small size). There is also a limit (legally) from what I understand as to how many strings can be connected via Y connectors before you need a combiner box. Then fuses and surge protectors are always a good idea to protect your investments. Personally, I have 12 panels configured in 2S6P... 2 parallel pairs are joined via Y connectors and I bring 3 strings down to a combiner box which contains fuses per string, a master DC brea
  4. sorry, that was meant to be "Sorry, I can't help with the cables"
  5. Cant speak for alternatives but can confirm ICC does definitely do what you are looking for. See below. I used to use it with Lead Acid batteries all the time and works well. The only provisor is that your batteries are not below return to grid voltage when trying to go off grid in the morning
  6. Hi Brian. The cards have been sold... Sorry, I can help with the cables.
  7. Great to hear there is a positive way forward. Let us know how it goes
  8. Will let you know. Are you looking for 2 sets of cables? I am presuming the power ones and not just the RS232 / Data ones?
  9. Good morning Brian.. Sorry I did not see your original message for some reason. I should have someone confirming today, they message a while back and are arranging a friend to collect. I will confirm either way. Thanks Jason
  10. From everything above, the first thing would be to them to check how the panels are wired. As Coulomb mentioned, you are most likely wired current 4S2P and if this is correct and you can get an additional similar spec'ed panel, the ideal would be (depending on the actual confirmed panel details) to wire this as 3S3P. I personally have 12 Panels wired in 2S6P which equates to around 80v & with a max of 80A I am busy installing at my parents house 12 Panels wired in 3S4P will result in around 90v with a max of 42A Both of the above configs, will work very well within the clipping
  11. @Hyarion - From my 2 years of learning my Axpert based solar setup, I can offer the following up... 1 - Your cut off / return to Eskom between 13:00 and 14:00 is not due to load... This is due to over voltage from your Solar Panels. I have the Axpert King which has the same specs as most other Axpert units in the voltage range you are mentioned... The unit operates between 60 and 115v (from 30v for the 3k version) but has a max voltage of 145V... The units will start to clip / reduce PV production to prevent damage as it gets closer to the 115v point but over that point it will stop produc
  12. I cant comment on the legality of moving your primary DB but I can tell you that if you have a pre-paid meter, you will need to get this moved by council / certified installer on their behalf and this will most likely cost more in the end than the cabling. What I can tell you is that 6mm2 cable is not thick enough. A 5.5k inverter will use roughly 26A for which 6mm2 is fine but then you need to take into account spikes which most inverters can handle double their capacity for a very short period of time. This would result in a rough 45 to 50A spike which then requires 10mm2 cable. Over a
  13. Only from middle of 2018 and only from some suppliers, others were a lot later
  14. Thank you as always... Being a new King it supports 80A from Solar where as the battery supports 100A each, so it was already set to MAX. Everything seems to be running well on day 1 with the above settings otherwise... Hoping it continues
  15. Hello all. I am upgrading from one Narada 48NPFC100 to two and was wondering from those who have done similar, so it effect your battery settings on the inverter? Currently I have the following configured via ICC Bulk charge - 52.5 Float charge - 51.0 Battery cut-off - 43.0 Back to grid - 45.0 (this was dropped from 46.0 as I was getting false returns in a load kicked in and the battery was under 50% SOC) Back to discharge - 48.0 I am using SOC to control the inverter, with To SUB set at 21% and to Solar SBU at 40% Everything is currently working perfectly
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