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  1. spark 68

    18th Edition Compliant Consumer Unit

    If you look at the thread SC referred to above ^^^^ and read that reg (536.4.202) properly it is the design current for that RCD that needs to comply not the size of the company fuse etc, etc, , the last paragraph of that reg states manufacturers instructions should be followed, however in the...
  2. spark 68

    Metal all the way, no brainer

    Exactly, the manufacturers know fine well how their product will be connected in the real world, they are simply penny pinching by requiring external fusing down that should have been provided for within the product in the first place. To me they should not be fit for purpose imo. RE: the...
  3. spark 68

    RCD RATING VS. SERVICE FUSE RATING

    The very first line of that reg 536.4.202 states the design current (Ib) shall not exceed the rated current of an assembly Ina having taken any applicable diversity/loading factors into account. So even if you have a 100A incomer and a split-load board you are going to try and load balance a...
  4. spark 68

    EU Brexit - How will you vote given the latest "news"

    Re: EU - How will you vote given the latest "news" Ok criticise was the wrong word to use on my part ;) I should have said "slanted" or "bent" reporting perhaps ?, after all it was not so long ago the Scots accused the Beeb of the very same "dodgy reporting" during their referendum :) The...
  5. spark 68

    EU Brexit - How will you vote given the latest "news"

    Re: EU - How will you vote given the latest "news" The thing is with this so called club, it predominantly suits big multinational corporations, it screws the little guys over, for instance the red tape and multitude of regulations suits the big corps because in the economies of scale they can...
  6. spark 68

    EU Brexit - How will you vote given the latest "news"

    Re: EU - How will you vote given the latest "news" If you believe anything the boys bu**erring corp has to say then I have a bridge for sale :) The mainstream media in this country is owned by about a handful of "big corporations" each with their own agenda, I very much doubt their interests...
  7. spark 68

    EU Brexit - How will you vote given the latest "news"

    Re: EU - How will you vote given the latest "news" There is other info out there on this subject :) the beeb will not criticise the EU directly because it is conditional on receiving said funding, the same goes for any other organisation that also receives funding from the EU Try and find one...
  8. spark 68

    EU Brexit - How will you vote given the latest "news"

    Re: EU - How will you vote given the latest "news" You are aware of course that the good old beeb receives funding from the EU ?, as such it is not allowed to criticise the EU directly due to this funding, do a search for BBC EU funding while some info is from the "Torygraph" and the likes of...
  9. spark 68

    dol starter motor

    Have you first checked that any E-Stop buttons (if any) have not been pressed in ? :)
  10. spark 68

    Help with filling out EICR with economy 7

    What Dave was suggesting (I think), which is the way I have done it, is link the L-E at the far end of the (hopefully dead ;) ) circuit and measure your Zs across the open time clock/contactor terminals, one of which will be a live feed, if you draw the circuit out you would see this works out...
  11. spark 68

    UPS on light circuits

    I did have at one time a white paper with the different categories of UPS, but that was over 10 years ago so god knows where it is now lol. There were basically two main types if I recall with further sub divisions. The most expensive were the type that converted (rectified) the incoming mains...
  12. spark 68

    UPS on light circuits

    This is a more sensible Idea, but ideally Shankys separate board idea is the way I would do it with the UPS primary supplied from a way in your existing board , with totally separate N and E bars for the UPS supplied circuits Depending on the UPS they run in at least two different modes, some...
  13. spark 68

    Is this an error in the "Electrician's Guide to the Building Regulations"

    I knew what you were getting at ;)
  14. spark 68

    Is this an error in the "Electrician's Guide to the Building Regulations"

    Out by a factor of 10 there mind Spin ;) , there are 2 full cycles per 40ms or 0.04 secs (hence the significance of the 40ms ms max rule for 30mA RCDs)
  15. spark 68

    Nic Eic Assessment When Dno Haven't Been To Replace Earthing

    I seem to recall that temporarily rodding it (albeit with a higher Ze) although on the surface that seems counter intuitive, was to provide a stable "known" if higher Ze, the reasoning behind this was that the TNS earth has already deteriorated and could totally fail at any given point in time...
  16. spark 68

    Stacked CU's

    Why not just get a standard 24 way metal clad 3- phase board and use the manufacturers single phase link kit to convert it to a single phase board ? Unless I am missing something ? I am assuming the OP requires an SP board/s
  17. spark 68

    bootlace ferrule crimper

    That is basically it in a nutshell, mostly either type is wide enough to cover the entire tube of the ferrule, apart from some of the longer types of ferrule, these should be crimped as many times as needed to cover the entire length, both types of tool are not wide enough for these longer types...
  18. spark 68

    bootlace ferrule crimper

    The one with the square hole auto-sizes for the ferrule in use within the limits of the tool. The "conventional" type with jaws, you must select the correct size die in the jaw to fit the size of ferrule you are using.
  19. spark 68

    TN-S Earthing

    Have a look at this attached pdf,
  20. spark 68

    Old Paperwork etc

    Here are the 15th edition forms from 1981 book :), 2 off inspection/test, and 2 off completion pages, 4 in total

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