r1+r2

  1. A

    10 mm R1+R2

    Hi good people i have just installed a shower 10.2kw cable is 10 mm with a 4mm cpc withe a 50 A pullcord switch when carring out my r1+r2 the reading obtained is 0.02 is this correct ?
  2. J

    Ring main R1+R2

    hi all, silly question, just installed a small ring 4 double skts with a total lenght of 35m. end to end tests all good then doing r1+r2 the reading get bigger as go round the ring i double checked end to end again and all good so crossed L-N and measured at sockets and all the sockets the...
  3. B

    r1+r2 rings

    how many people actualy use a plug top to test r1+r2 as when ever i do it i end up having to undo sockets to gain access to terminal just to ba able to get reliable reading using a plug top can put any where between .2 to .3 on the reading depending of warn pins and yes i do put in plug half a...
  4. Griffin

    R1+R2 and Zs

    How do you record the R1 + R2 for a circuit with seperate feeds? For example in my propert the downstairs lights have 3 live wires coming out of a 6a MCB. cable 1 does the bathroom and playroom lights cable 2 does the hall light cable 3 does the remaining downstairs rooms Do i record the...
  5. B

    Testing r1+r2

    its me:), Hi all,new to testing so go easy on me if it's a silly question,On a periodic when testing r1+r2 & zs on a lighting circuit with ELV downlighters fitted how is it done.If the transformers are not accessable:eek: for bypass or disconnection is the r1+r2 test just done...
  6. madeinengland

    silly question? R1+R2

    i have an assignment in which i have to describe the sequence of tests. also have to describe how the tests are done and expected values.for insulation restistence i know its 1 M ohm minimum. but is there a maximum R1+R2 value
  7. lurch

    High R1+R2

    I have a customer who recently had a test an an inspect on his new house. the report showed a high r1+r2 reading on the shed suply. I have checked it out and cant find anything obvious that would suggest why the reading is high on the cpc. however I cant get to a JB that is concealed behind a...
  8. S

    measuring (R1+R2) on a radial with a DOL

    Hi eyeryone, Has anybody got the best (simpist way) of measuring a radial circiut with a DOL controling a Fan, This is on a Rig at college, on which I will be tested on next week. I want to be able to prove polarity at the same time, as in a light radial for example. Thanks in advance. :)
  9. H

    R1+r2 test

    Hi guys one of the new guys here, i was doing some practice testing on a friends house and on the R1+R2 test on a radial power circuit the reading kept climbing slowly, a bad or loose earth ? cheers for any pointers :) If you dont ask you dont learn !
  10. N

    Help with a question (R1+R2)

    Hello all, I hope someone can point me in the right direction. Come across a question today that i am not sure on the answer to. "What multiplier do you add to R1+R2 to all low temperature increase under fault conditions". I am not looking for someone to answer this as want to figure...
  11. B

    r1+r2 reading

    on a pme system wre a rod is used to seperate metal parts from pme terminal how would you record r1+r2 of cpc conected to rod and r1+r2 of cpc conected to pme terminal ie swa got some external lighting in midle of a lawn wired in swa and armer is continious but seperated from fitting metal...
  12. R

    R1+R2 Periodic nightmare

    I have been carrying out a periodic inspection of an old stone barn conversion (now a single dwelling with a mezzanine floor) for rental purposes. There is no loft space at all. The ceilings are open right up to the apex of the roof. The problem I have encountered is this: measuring R1 + R2 at a...
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