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  1. SibertSolar

    Section 2.1.2 on DTI Guide - Voc/Isc mulitpliers

    Guys, As we know, for switches/cables/isolators etc, you need to multiply your Voc values by 1.15 and Isc values by 1.25 to calculate the relevant max values for suitable protection. However, does this apply to MPPT or Max DC voltage/current input values on inverters? Any thoughts? Thanks Andy
  2. S

    Thin-film panels, anyone using them?

    Before crystalline panels had started dropping in price there used to be a lot of interest in thin-film... Usually lower efficiency (which doesn't actually matter if you have space) but also lower price than crystalline... Just curious whether any of you use thin-film panels and whether you...
  3. T

    Sma 17000tl multi functional relay

    Hi, Im Currently installing my first g59 install. I am using Sma 17000tl inverters and was wondering if anyone knows anything about the multifunctional relay. I understand under g59 you need a g59 relay and was wondering when you set the parameters on the inverter whether this is suffice or do...
  4. W

    How to know whether to wire as star or delta?

    Hi All, When connecting a motor, how do you know whether it needs to be wired as star or delta? Thanks
  5. SibertSolar

    Type A and/or B RCDs

    Hi all, Not trying to push/promote sales etc, just a serious question really to try to gauge market demand. Without getting into the discussions of whether you do or don't need an RCD device to protect the PV installation (quite happy to discuss off-line if people wish to), what is the...
  6. C

    enquiry to DNO about earth type

    Hi does anyone know if the DNOs keep a record of the type of earth they have supplied to properties so I can enquire if a particular commercial property is TNC-S or TNC. If they do is there a particular department to ask for when making an enquiry.
  7. S

    Contactum RCBO won't trip during test

    Hi again, just considering whether I'm going crazy or I've got a duff RCBO. Perhaps someone will help me see the light either way. Quite prepared for the former! Installed it yesterday and when I got to doing the certificate I couldn't get it to trip. It's one of the ones with no earth wire...
  8. M

    documents bs5266 part 2 and bs5839 part 2

    hello everyone, basically i a have applied for the approved contractor scheme and was told that i have to buy these documents, I have been searching around and found out that these documets are in the 200 pound mark. well ,thats quit a bit of money, especially for me, anyone got any advise...
  9. S

    Owner of Fluke 1652 with a question, if you can help....

    Hello all; I bought a Fluke 1652 at Christmas and now want to sell it on now the new 1650B series have come out. Does anyone know whether the warranty would be void if I sold it on? I want to put it on eBay but don't know whether I can sell it as 'new'? It has only been opened once. Thanks for...

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