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  1. bigspark17

    Concentric cable used as submain?

    Situation DNO supply into garage outside meter box, submain into house approx 10M in concentric cable. Fused down by 80 swfcu . I dont know the size but it has 7 neutral strands and approx same cpc strands. Any thoughts on this.? Is it ok? I would have thought ok as same if not very similar to...
  2. J

    inspection and test methods used on a domestic lighting circuit and a domestic power

    what are the inspection and test methods used on a domestic lighting circuit and a domestic power circuit?
  3. Pete999

    Used hand tools

    Not sure if this is the right forum, mainly aimed at Trainees, I have some unwanted used hand tools, insulated screwdrivers, couple of meters (multi) loads of other useful tools that might suit a trainee who is strapped for cash, I live in Northampton there are far to many tools to post, so it...
  4. M

    Megger PAT3 Tester - Can it be used on IT & Sensitive Equipment

    Hope I'm in the right bit for this question Just recently acquired a Megger PAT3 Tester which will be used for 110v leads / tools etc at work Then the question came will it be able to test the office equipment - it will be ok for the kettle etc BUT will it be ok for testing the Computers...
  5. V

    230v Generator used for domestic , basic help

    just want to clear a few things up: intend to use a generator on a domestic using a manual change over switch (basically if the electricity goes off) my questions: 1) if generator has floating earth (neutral and earth not connected together), can i rod/spike the generator frame and connect...
  6. J

    NICEIC Certification Scheme Advise on my EIC to be used on niceic assessment

    Just going through my EIC that i will be summitting to BC- then to use this job for my Niceic initial assessment- so just trying to make sure theres no holes! job is just new ring circuit to 2 sockets out a 32a mcb on 30ma rcd side of a existing 16th board. in sec 3- comments on existing...
  7. L

    16mm T&E used as supply to 2nd CU

    Customer has a 25mm sub main fed into DP isolator (as pictured) then 16mm T&E out of the top to feed 2nd consumer unit about 20m away. 2nd consumer unit has 8 circuits. (1 32A Ring, 2 socket radials, 1 lights, Shower (pump fed no heater), Immersion heater, 2 Ovens). Diversity & cable rating...
  8. R

    Switched fused spur used as throughway for control wiring

    Ive carried out an Electrical condition report recently and found that the main switched fuse isolator for the installation has control wires running through it from a control unit mounted above the isolator to contactors mounted below the isolator. The control wires are 230V. Im sure ive read...
  9. S

    What maximum Zs should be used?

    Hi all, Scenario: A fused spur unit added to a ring main to supply several window actuators via an open / close rocker switch. The ring main is protected by a 32 Amp type B Mcb, the fused spur would only require a 5 amp BS 1362 fuse (lets say a 13 amp for worst case scenario in case replaced...
  10. P

    SWA used as CPC

    Is there a reference guide for which SWA sizes can be used as the CPC? I have a 120mm 4core SWA at 110M and although the Zs value has been measured at an acceptable value our electrical insurance inspector wants all SWA cables above 16mm on site (industrial premises) to have a seperate earth...
  11. S

    Anyone used these guys for 2394 & 2395 exams?

    Hi all I need to get the 2394 and 2395 exams under my belt. Pretty rusting on all testing and inspection to be honest and time is a little bit tight at the moment. Anyone used these guys before? Inspection and Testing Course 2394-2395 Would be very helpful if I could run through it all at my...
  12. P

    Flex used to connect upto 10 light fittings together over about 20 mts

    came across this on a EICR the flex as been hard wired between each fitting not sure if this is ok
  13. NDG Elecs

    GS38 leads keep fusing....never used too though..

    Hi Folks, I have my first 'competent person' assessment in a couple of weeks and am starting to stress a bit! Problem I have is my GS38 leads keep blowing. For a Megger1552. They never used to do this. Have been using the same box of 500mA HRC fuses for ages, but cannot do any live tests...
  14. N

    What happens when Not verified N/V is used?

    When filling in the Condition Report Schedule for Domestic with up to 100A, section 5.10 (Concealed cables installed in prescribed zones) Some one replied that is should be N/V. Does that mean that Further investigation is required? The reference Method is B as cables are concealed inside the...
  15. 7

    Any one used this firm for distance learning

    Distance Learning Has anyone on the forum first hand experience of these guys offering distance learning thx
  16. Rockingit

    6mm integrated CPC of 16mm 6242Y used for main earth

    My adiabatic maths says that for a 16mm main conductor, assumed Ze of 0.2, 80A 88:3 CPD, k as 115.... the earth only needs to be 3.16mm therefore the 6mm in a 6242YH 16mm is more than sufficient. Anyone disagree?
  17. J

    10mm twin and earth used as supply tails

    Hi all Went to a job the other day where they wanted an additional electric shower, they've currently got a PME system with the following usage : electric cooker 32 amp shower 32 amp lights 6 lights 6 ---split board--- boiler 6 sockets 32 sockets 32 And they want to add another 9.5kw...
  18. Pip

    Telephone Cable used as link from Programmer to pump etc

    Hi People, So have been called out to change a Potterton EP2000 programmer for a Horstmann C27, nothing strange in that you think. When I removed the EP2000 there are telephone cables from certain points, Neutrals, Earths and possibly switched lives, which appear at the other end in the airing...
  19. Dan

    Many used Mirror Demisters yet?

    Many used Mirror Demisters yet? Mirror Demisters.co.uk - Consistently Clear & Mist Free Mirrors Offering a discount for members I think if I remember rightly.
  20. E

    has any one used one of these before??

    Horstmann Centaurstat 7 Im thinking about fitting it for a customer that has trouble working there existing programable stat. Can some one tell me if there any good thanks

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