Recent content by magicman

  1. M

    Cookers on 30mA RCDs?

    Anybody advise what is the current recommendation is-(without a 13A socket on ckr. box)? Also, for I/heaters and C/Heating? Thanks Guys! Magicman
  2. M

    Help! Concorde c/h boiler -blocked?

    Thanks chrisR I'll make that plan B! (seconds thoughts , I might make it plan A- I'm getting to the point where I desparately need a good wash!!!) M
  3. M

    Help! Concorde c/h boiler -blocked?

    Thanks a lot keyplumb/PVm I'll give it a whirl M
  4. M

    regs

    comms, You have not been specific as to the installation conditions or means of protection or indeed the ip of the fitting! Simply putting a grommet in, may or may not not be sufficient fo rthe conditions. The installer /designer would need to decide whether the fitting was suitable for the...
  5. M

    Help! Concorde c/h boiler -blocked?

    Thanks PVM! The cylinder is only 600mm above the boiler (in bedroom cupboard) and the cold water fill branches in the hw. circ behind the cylinder. Any ideas on how I can get rid of an air lock in the h/w circuit? (There is a drain cock on the biler, but no apparrent bleed valve)...
  6. M

    Help! Concorde c/h boiler -blocked?

    I have 8 rads. and a microbore system. The blr. is a concorde WRS240A I changed the kitch rad, and now can't get any hot water from taps! Info. It took 3 hrs, to bleed rads, pump on /blr.off! (rads now fine) The blr. has a separate rad. circuit and h/w circ The cold make up tank...
  7. M

    rose to spot

    ensuring the power is off- diss each one in turn until spot 1 loses it's live. (it could also be done with a continuity meter- if you have one- again ensuring the power is off, and connecting one end to L at spot 1 and the other to each Live at spot 2 until you get continuity), although...
  8. M

    rose to spot

    Yes, it certainly appears that way! You have almost certainly inadvertantly connected the no. 1 spot live to the loop live of spot 2, instead of the switched live magicman
  9. M

    Electric Cooker

    Please correct me if I am wrong! A 6mm T+E carries 46A if clipped direct, Vd =7.3 mV/M and max.ELZ is 0.86 for a type B MCB (80% of REGS) max Vd is 4% of 240V= 9.6V) max length is 9.6V * 1000 ________ =29M...
  10. M

    Existing Wiring on a Rewire

    Why is it feel I've had my wrists slapped!!I Thanks guys
  11. M

    Existing Wiring on a Rewire

    Hi Guys can anyone tell me, if a rewire is carried out, except say the existing central heating wiring (done by possibly the plumbers who installed the C/H.) is it mandatory to test the C/H. wiring? Would any faults have to be recorded /rectified? magicman
  12. M

    RCD Earth Loop Impedance

    Thanks Guys! I only signed up to DIYnot.com on Fri. and had a reply posted on Sat.-impressive!! Thanks "ban-all -sheds" for your excellent reply. Since posting my question, I have since found an article in -Earthing- "Snags and Solutions" (by the NICEIC)- as you correctly pointed out, a...
  13. M

    RCD Earth Loop Impedance

    Help! Hi Guys, can anyone shed any light on a query regards the max. ELZ for a 30mA RCD protected circuit? Reg. 413-02-16 states that the max. ELZ for a 30mA RCD should be 50V/0.03 mA = 1666 ohms. I have a ring main protected by a 32A/32mA RCBO (ie an MCB/RCD combination) Table...
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