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  1. E

    What is a the going rate to replace an old plastic socket front to an chrome one?

    I think you`ll find that here too, rebuild more than initial build
  2. E

    What is a the going rate to replace an old plastic socket front to an chrome one?

    well say half hour each way and 20 mins per socket and say 1 hour contingency . I`d allow four hours 20 mins should cover most (hopefully) , some might round this approximation for about a half days work at whatever your rate is (some might add a bit for vehicle running costs say fuel etc or...
  3. E

    Ring main.

    I was talking ref our regs BS7671 only. other countries will differ but Europeans will have many similarities with ours although still some different quirks. Trees are, in actuallity, the same whether they are all in the fuseway or in joint boxes (including ceiling roses, they are just a more...
  4. E

    Ring main.

    Do not be offended if I ammend that a bit but a circuit is defined by the Overcurrent Protective Device (Fuse/MCB) therefore several radials (or rings) connected at one fuseway is one circuit. Whether it`s bow tie or trees or whatever it`s just one circuit. Here`s one though, a ring final or a...
  5. E

    Ring main.

    Yes a double/triple/quadruple ring in one circuit would be more difficult to test than a single ring in one fuseway. Similarly a tree circuit for say lighting for instance would be more difficult than a simple radial that goes from no1 to no2 to no3 etc etc until the last point. But all are...
  6. E

    Ring main.

    No, two rings one circuit is not what is meant by "figure of 8". The figure of eight test is a test of ring conductors that allows R1 + R2 readings to be taken (fairly consistantly but not 100% exactly) from any point on the ring
  7. E

    Ring main.

    Right, so we all in agreement then. Two/three/four/ umpteen rings in one fuseway32A is one circuit is compliant and is safe. 4,5,6,umpteen radials in one fuseway 20A with one twin skt max in each radial is no compliant but still perfectly safe. both 2.5 T & E and both including all other...
  8. E

    Ring main.

    I doubt it will get into any text book. Any name might be equally as good (or bad) as another. I personally have never seen in any textbook or article the name Lassoo circuit (6.00 T & E radial feeding a 2.5 T & E ring final) , not at all uncommon in a kitchen where an old redundant cooker...
  9. E

    Ring main.

    Agreed, Common sense says it is not dangerous. Common sense say it does not breach the regs. But common sense tells us that it is not the most elegant of solutions and that it may well allow those who go there after us to confuse themselves. Therefore most of us would probably avoid it. I did...
  10. E

    Ring main.

    Agreed, it would be wrong (probably) it would not be any more hazardous than a spur on a 32A ring though. So 4 or more radials of not exceeding one twin socket of good length (not excessive length so it compromises volt drop and Zs though) would also be OK ref overload, Two singles would but the...
  11. E

    Ring main.

    Hi, the point I was making is that if we wish to comply with BS7671 then we do not need to stick to the standard circuits, there are other alternatives. Most of us, including me, if we see a non standard circuit then we initially think "hey that`s wrong!" because of familararity. But, if we...
  12. E

    Ring main.

    Easy, just the ring of that particular fault. Same as any circuit connected in your consumer unit. 1588410666 The test would give the most onerous as the answer which should be the 65m ring part of the circuit
  13. E

    Ring main.

    Whatever you label them does not really matter, they are not crap circuits, they may be decent reliable circuits if undertaken properly. The only problem is they are not commonly listed. BS 7671 tells you what to comply with it does not tell you how to comply. So long as you use sound...
  14. E

    Another question about cables (6.0mm & 2.5)

    LOL. I know what you mean. A bit unfair though. A lassoo can be a decent circuit. It`s just not a "standard" one as shown in BS 7671 or the OSG though.
  15. E

    Another question about cables (6.0mm & 2.5)

    "have only once come across an old 6.0mm cooker cable in a kitchen that was redundant and used as a kitchen ring in the UK, a ring main (2 x 2.5mm cables) had been attached to it (and no, I didn't do it, it was existing)" Yes the lolipop circuit a.k.a the lassoo circuit. Not uncommon and if...
  16. E

    Ring main.

    Well I called it a butterfly circuit, anybody can call it what they want, no problem. Just like the age old cooker circuit, modified cos cooker not needed so a ring produced from that point, some call that a "lolipop" circuit or a "lassoo" circuit (not implying a cowboy job I hope!). The...
  17. E

    Ring main.

    Good answer SparkyChick. Folk often get hung up on OSG which is just a conventional way of doing things for safety and compliance. Lets consider two examples:- House 1/ A ring final circuit on ground floor with 40 points. Floor area served 70 sq m Ring length end to end 40m Majority of...
  18. E

    Single Pole Fused Spur From Ring Main

    The 450mm to 1.2m is not a reg, it is advice in the approved doc. It points out that to acheive part M of the building regs this is one way to acheive it (it does not mention any other way though and I`ve never heard of one)
  19. E

    Ring main.

    What makes having 4 conductors wired as two rings on one fuseway dangerous? I have not seen an answer. There isn`t one
  20. E

    Shower EICR Code- 9.5kW- 40amp mcb!. De rate MCB to 32 or rewire cable to 10mm

    An Overcurrent Protective Device (OPD) might be used for three reasons. 1/ Overload. 2/Short circuit. 3/Earth fault. If the load is fixed such as a shower then only 2/ and 3/ apply as to the OPD clearing short circuit and earth faults. If the load does not exceed the cable rating then all ok. We...

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