Recent content by JD6400

  1. JD6400

    Harmonics on a rotary milking parlour

    Hi all , I have not posted for a long time due to finding it almost impossible to use the site due to advertising. But it seems a little better now Sorry this is a long one ! I have a client that is having severe trouble on a dairy farm with his cow's appearing the sense stray voltage as they...
  2. JD6400

    Looking for a solar installer who is MCS registered.

    With a the Seg at what it is , it is more focused on what you save and not what goes back down the line. We have had the DNO out twice this week alone for + 253 v supplies , whilst chatting with them about a possible tap change one of the lads mentioned that the problem is all of the extra solar...
  3. JD6400

    Solar Panel Theft Solutions

    For the alarm side you could run a tamper line through the spare fixing holes on the panels fed from a 12 v transformer linked to a no volt panel relay . But it would not take a great deal of knowledge to overcome this. The best thing you can do is drop an appropriately sized ball bearing into...
  4. JD6400

    Solar Array swa sizing

    I have never got my head around how the inverter can see the volt drop and then add to it , but apparently it does . I have found that it is normally one of the indicator's if the system was installed to a decent standard if the installer has run a dedicated cable for the solar when it is...
  5. JD6400

    Solar Array swa sizing

    From what I have read , the main thing with amendment 2 is making sure any component used is fed from the right direction if it states it is directional in the manufacturer's instructions
  6. JD6400

    Solar Array swa sizing

    You should aim for 1% volt drop , as the inverter can see the drop and compensate for it , possibly putting the output of the inverter over voltage , so the smaller the volt drop the better. The 4 pole DC isolators are to do with breaking the DC as it helps with arcing , you loop each cable...
  7. JD6400

    Help with damaged underground cables

    They should have informed the poor bloke , it is hard enough making a living with out prats keeping quiet . But regardless of being informed of underground services or not , to open a cut with out scanning first is just poor and unsafe full stop. We have both a walk behind bobcat trencher and a...
  8. JD6400

    Help with damaged underground cables

    I would say that they have no excuse to leave them so shallow and are having a laugh with the no resin stance . But you have no excuse if carrying out ground works without cat scanning first , especially chain trenching . Sticking it on radio would have found these , to be honest I trust the...
  9. JD6400

    How can they justify the increase in your electricity bill !?

    Like you say ,the energy cost I can actually understand , even though it is 100% renewable. As we are all in it together. (ish) But the standing charge is nothing but theft in my opinion that will not come back down again ! For several years now I have started turning a blind eye to the bent...
  10. JD6400

    How can they justify the increase in your electricity bill !?

    Just had a email from E-on to say my yearly bill is going up £81 from £103 - £184. Now this has got me wondering how they can justify this --- Firstly it is for a spare feeder pillar in a field that uses 0 kWh per year , so the increase from 19p to 29p per kWh should not effect the end bill...
  11. JD6400

    Pricing for trench work

    Also as PC says buy your sand in bulk , it is normally far cheaper to order more than you need in bulk than to buy the exact amount in bags. Also ask about the quality of it , we use lower quality stuff that is sold for cattle bedding . They have all sorts of grades from the highest quality...
  12. JD6400

    Pricing for trench work

    You mentioned that you have six columns to install . Try and use ground workers with a digger auger , or hire one. We brought one for doing the ménages , we have 6" and 12" flights , but tend to use the 12" one for telegraph pole's , it saves an enormous amount of concrete and installation time...
  13. JD6400

    3a FSU downstream of a spur socket from RFC - compliant?

    Is it a double socket and fused spur or a single socket and fused spur ?
  14. JD6400

    Specialist firm for running cables in underground?

    I totally agree and tend to utilise on farm equipment where possible to keep the costs to a minimum. But I would venture to say that I guarantee your pallet tines will not be wide enough , unless you are handling potato or veg boxes .
  15. JD6400

    Specialist firm for running cables in underground?

    Going by Batt cables specification each length will be about 2.1 ton on its own without the cable drum. You will not want to be pulling that on its own let alone along side another one in a duct. In my opinion the best way is always to open a cut and lay it in , far less chance of damages to...
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