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Jaws

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Everything posted by Jaws

  1. Jaws replied to Dex_'s topic in Inverters
    Going over 50 V will introduce new challenges. 50 V is concidered a "safe" voltage.
  2. Hi Jones Im a bit confused as to how this is all connected Are you sharing one set of batteries (6 in parallel) between 2 inverters ?
  3. Jaws replied to Mistral's topic in General Discussion
    This and add plenty of spare coduit pipes up to the ceiling ,
  4. Haha seems like someone is doing something , I wanted to post a few of the adverts here I couldnt find a single one
  5. Yes I see them all over Facebook market place. I always wondered why the cellphone companies dont pay Private security to go after these guys.
  6. Anyone here that has stock of an US2000B ?
  7. Jaws replied to Dean's topic in Inverters
    Dean bite the bulllet and get Lithium batteries.
  8. And here I thought TTT or Plonkster was going to say that Victron is such beautiful kit that it should be mounted in the main bedroom.
  9. There is no ways anyone can issue a COC in 30 minutes. Just to complete the form correctly will take 30 minutes (that is without any physical inspection or testing) . I would never ever issue a COC for that kind of money. The amount of liability an electrician takes when issuing a COC is actually unbelievable in this country. If someone should be electrocuted on your premises - you will be held responsible for the electrical installation. So in order to cover yourself you get a COC issued. Now the Electrician who signed the R1000 COC is standing in court answering difficult questions. Do I want to put that on myself for a R1000, no thank you. If the electrician did the installation, from scratch then I do agree that the electrician should not charge for the COC as he is just verifying formally that the services that he provided is up to code. OHSA is what makes a COC a leagal requirements. Occupational Health and Saftey Act, 1993 Electrical Installation Regulations.pdf
  10. I know but the ones on the marker are not capacitors in the true sense of the word It’s like when we got flat panel LCD TV`s. Then all of a sudden LED TV. Which everyone assumed was a TV screen made up of small individual LED`s but all it all just marketing. Turns out LED TV`s where still LCD screens with LED backlights. "True" LED TV`s are now called OLED TV which confuses the layman on the street even more. When it gets called Super Capacitors, I expect to open it up and find nothing but two conductive plates with seperated by an dielectric medium . No chemical reaction should be taking place, otherwise it`s a battery not a capacitor.
  11. I missed the Blue part, but the possibilites are endless if you concider other products as well .
  12. Nice one Elbow
  13. Jaws replied to DeepBass9's topic in Batteries
    Might be better to connect the car to a battery charger while parked for extended periods. You can install a plug in the front for easy connection disconnection
  14. Plonkster is correct on the super capacitors . One of the biggest marketing scams around. As for size I'm currently busy with a project for a mine. 7.5 MW inverters and a total of 7.325 MWh lithium batteries. The only limit is size of your wallet
  15. Pretty weird, the OP posted a for sale and then doesnt respond to PMs🤷‍♂️
  16. For the Axpert I see there is an option
  17. So P3 below is what most Axpert users will go for, but I think it makes the assumption that the UPS / Inverter will automatically connect Earth and neutral when it starts inverting.
  18. Ok found the relevant sections
  19. Elbow wait Im still trying to get past your counter argument that you can earth the neutral down stream , as long as the down stream is not after an earth leakage device - so far I have nothing to say its not allowed. If you read TNS as three seperate conductor L + N + E and TNC as two conductor L + PEN you run three wires its still TNS Or does TNS means from a point down Neutral and eath are always seperate ....(not just in terms of condcutors but also in terms of connection) Its been a long day , let me sleep over it.
  20. Agreed. The reason its working in your installation is because you supply your inverter from a circuit with no earth leakage protection. If you supply the inverter from an Earth Leakage protected circuit then you need the Neutral Earth Relay on the ouput of the inverter otherwise the supply Earth leakage unit will trip. SANS 10142 is rather clear on this topic:
  21. Its always hard to give advice over the damn internet. But if you have a solid earth bond on the inverter and an E/L installed directly after Earth Neutral bond (its perfectly save). These damn standards are not always clear and can be differently interpreted. The whole thing with TNC and the warning was that you run only two conductors by combining the earth and neutral. So the intent why they don’t want to do it is because: Its much saver to have a separate earth and neutral conductor , which you have to the inverter. Not to interfere with upstream E/L protection (which you dont have) as an E/L does exactly that check for leakage current to earth. So if the live conductor touches earth it will trip but also if the neutral touches earth it will also trip, as some of the current will now flow back trough the earth instead of all the current back trough the neutral.
  22. How old are you 75 ? 🤣

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