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sequence

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  1. Baker1988

    sequence of tests

    Hi i am doing some college home work (which i am fine with) its to do with the sequence of tests and i have been looking in guidance note 3 and in 2.7.4 is the sequence of tests but can i ask who does "f" 'insulation resistance of non conducting walls and floors' i ave never heard of this before...
  2. H

    Sequence of testing in BS7671?

    Can anybody tell me the sequence of testing that's stated in BS7671? At college I've been taught CRIPES, which is: Continuity Ring final continuity Insulation resistance Polarity Earth loop impedance (functional) Switching Why are these carried out in this specific order?
  3. G

    Sequence of testing

    Afternoon all, i was wondering if any of you could help me with this question.. Why must testing be done in sequence?
  4. P

    three phase sequence testing

    Hi guys, as the title suggests just trying to get my head round three phase sequence testing, if I understand it correctly this is confirm that the three phases are in sequence.....obviously :) Now as I understand it this is obviously a live test and a three test leads are connected to L1 L2 L3...
  5. A

    CRISPEIR - To Remember the sequence of tests

    Has anyone heard of this: C: Continuity of protective conductors, including main & supplementary bonding R: Ring final circuit conductors continuity I: Insulation Resistance S: SELV, PELV or by electrical protection P: Polarity E: Earth electrode resistance I: Impedence, (Zs & Ze) & Pfc R: RCDs...
  6. P

    Wha would the effect of incorrect phase sequence to the 5kw machine in a workshop be

    hi guys, What would the effect of incorrect phase sequence to the 5kw machine in a workshop be? thanks magpie
  7. P

    control sequence

    I know control panel circuit diagrams/design has to be constructed to all relevant regulation and laws applicable to the country of use, Is it possible for some of the member her to post basic control circuit using just relay/timer hardwired circuit to perform basic control function. So other...
  8. K

    Voltage Optimisers.

    Has anyone come across a phase sequence fault when switching on a voltage optimiser for the first time. The system is a cheap chinese one I think with terrible instructions. Can a voltage optimiser know if your input wiring is black, grey, brown instead of Br, Bl, Gr? I ask because we don't...
  9. L

    test for phase sequence

    done c & g 2330 level 2 & 3 and 2382. i wanna do 2391 or the new 1 (whatever that is) but have little practical experience, im not a stupid person but i dont see myself as qualified yet. do think i will know enough to pass if i read gn3 for a couple of months before i book up? real reason for...
  10. spud1

    Verfication of phase sequence

    Hi Chaps Why on my cert software does the self check facility always bring up 'verification of phase sequence - applicable to most installations'. Surely its only applicable to multi phase installations, not a standard single phase domestic installation ?
  11. D

    Domestic Rewire Sequence?

    Hi All, Wondered if there is anybody out there that could give me some advice on 'What order to carry out a re-wire'? I am Part P registered and have been running my own Buisness for about 18 months and can carry out most task in a reasonable time frame and order. One thing that concerns me is...
  12. O

    periodic sequence

    Hi can anyone tell is the correct sequence of tests to do on a periodic in college as ive got my practical exam Tuesday and just wanna make sure ive got it rite. Cheers.
  13. E

    PIR code advice

    hi guys im new here so please be gentle with me...lol i have just started a new job in a factory, maintenance spark. a few years ago the company had a PIR carried out and guess what, its my job to sort out all the faults,,,,,,,, happy days... not my question is they have been given a code 2 for...
  14. D

    RCD test - 2 RCD's in sequence

    I have a garage install protected by a 30mA rcd and a 32A breaker at main DB in dwelling, I then have a new CU in garage which also has a 30mA rcd protecting sockets and lights. When I do the RCD test I am getting bad results. When I do the 1 x the RCD in the garage CU is not tripping but the...
  15. dansk

    Hand over manuels and install sequence

    Hi - Just wanted to know how everyone else carrys out the paperwork side: This is the way i do it Send Estimate Then site survey Follow up with formal quote which gets signed and forms the "contract" (internal proceedure) Create job card and order good etc Do the install Come back and...
  16. M

    Help, test sequence of fault finding of electrical circuits.

    Hi, i have a fault finding test soon and need some advice on the sequence of tests to carry out. What i have got so far:- 1st step is to locate the faulty circuit and the points in the circuit. 2nd unplug items from circuit and test mcb. 3rd visual inspection, damage etc. 4th seek permission...
  17. M

    Phase-phase fault

    To protect equipment eg motors, generators, against phase-phase fault, one uses a Negative Phase Sequence Relay. Appreciate if anyone can explain the working principle of the relay. Is it similar to normal over-current IDMT relay?
  18. robd

    Bluetooth feature on Megger MFT 1553...any good?

    Evening all, Have got the above mentioned multi-function tester, have had it for a year or so but never got round to setting up the bluetooth feature. Is it any good and does it actually save time? Also does anyone know if the software is compatible with the NIC forms? Thanks, Rob
  19. J

    sequence of the tests

    why is the reason that you have to carry out the testing in the sequence they are writtem in the GN3 OSG before energising a new circuit?
  20. B

    Split lighting circuit

    I'm about to do a rewire on an old lighting circuit. I'll have to remove and replace some wiring but not all, thing is, up till now all the circuits I've worked have followed a nice neat radial pattern, but this one is split into 2 or more sections, ie; the line from the cu is split at a jb to...

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