Recent content by tmus1

  1. T

    Type A RCDs Vs Type AC

    Best set the tester to 500ma test and test the 30 on that, it’ll trip out in no time at all, I’m sure that’s how your supposed to test rcds
  2. T

    Type A RCDs Vs Type AC

    Exactly this is the point I’m making why is it that hager are then saying we need to test the type a rcds at 250ma in order to obtain the type of result we want. The amount of leakage current we are then testing with has changed significantly and if it’s not performing below that level then...
  3. T

    Type A RCDs Vs Type AC

    I have seen that and have taken note however if an RCD even a type a is rated at 30ma should it not operate as if it were also a type ac. If for example joe bloggs plumbing and heating services touched a live cable and it’s only going to trip in o.4 seconds when 250ma is applied it doesn’t sound...
  4. T

    Type A RCDs Vs Type AC

    I understand why the increased use of type a rcds are recommended however there’s something I don’t understand. If these type a rcds aren’t tripping at 1x on a normal 50hz ac cycle or at x5 then surely they can’t be fit for purpose because they are not detecting a potentially critical fault. In...
  5. T

    Regs books and guidance notes osg

    £60 per year for just a regs ebook on IET probably not that bad if they bring out amendment 1 of the 18th this year.....
  6. T

    Regs books and guidance notes osg

    So I have my first cps assessment coming up just wondering if in this high tech modern world they do a pdf regs book yet. previously I’ve borrowed books and I have a green osg but I left the place I used to work at and I can’t really just borrow the books. It all seems a bit pointless with 18th...
  7. T

    Unconventional heating arrangement

    Thanks that’s all I wanted to know you top dog!!
  8. T

    Unconventional heating arrangement

    As there’s a door joining the two properties and it’s the same Electrical supply from DNO I don’t have a problem with it the 2nd property is just an Annix which they intend to holiday let
  9. T

    Unconventional heating arrangement

    I don’t like it I don’t think a 3 port valve will last as long if it’s being used this way. Any wiring diagrams anywhere? manufacturers instructions are pretty unhelpful, it’s the nc and no stuff connecting to the valve that throws me the rest I can deal with
  10. T

    Unconventional heating arrangement

    So basically what I have is a combi boiler supplying heating for two properties and splitting the heating for the two properties using a 3 port valve, I’m using two single channel programmers to control a room stat for each house but am having trouble working it out in my head. is it possible to...

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