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  1. M

    Relays, mains fail, delay.

    What did you use in the end?
  2. M

    Mist sprinklers, intumescent paint, Exposed RSJs

    You should ideally install a brick pillar and put in a catnic for the outside bit, or use one of the longer, heavy duty catnics which are made for the job. Catnic themselves can work out which one you need from your load calcs and drawing.
  3. M

    Ceiling light 60s house

    @sparkwright If the sleeved cable was the neutral, the light would be on constantly. The OP says it doesn't work at all. A picture paints 1000 words.
  4. M

    Electricity for Trains

    @big-all Quite possibly... there are several factors at play. In DC areas a lot of breakers are shunt magnetically actuated and don't incorporate a protection relay as such like the AC gear has. This can make them slower to operate than other switchgear. Furthermore, the lowish voltages make...
  5. M

    Electricity for Trains

    Ref. shared areas, a lot of the time BR (and, now Network Rail) would drop their voltage on the shared line, or leave it alone if the train could manage the difference. The key difference is that eg on Bakerloo line outside Queens Park (where NR take over) the voltages are 650V and 0V, ie there...
  6. M

    Change of direction of horizontal run of soil pipe

    Put it this way. On a steady gradient you'd need to be pretty well constipated and/or disposing of large amounts of wipes/towels to be able to fill a 4" pipe so much that no air could flow freely within it. And that's flushing with a thimble of water each time. Adding 10% to get 6.6m is just...
  7. M

    Change of direction of horizontal run of soil pipe

    BCO might insist on an Air Admittance Valve at the top of the run. Or they might just ask, and you can answer forgetting about the added bits. I've got away with more.
  8. P1080751

    P1080751

  9. P1080663

    P1080663

  10. P1080674

    P1080674

  11. P1080681

    P1080681

  12. P1080693

    P1080693

  13. P1080697

    P1080697

  14. P1080700

    P1080700

  15. P1080702

    P1080702

  16. P1080704

    P1080704

  17. P1080715

    P1080715

  18. P1080716

    P1080716

  19. Extension - side view

    Extension - side view

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