method

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  1. zap

    Flat twin and earth in mini trunking - which installation method?

    Greetings, Is this allowed? It would appear from BS7671(17th) that the installation reference number is 8 or 9 with a reference method 'B' for determining the current carrying capacity of the cable. However, the anomaly is that table 4D5 doesn't include a column for method 'B'. Can anyone...
    • zap
    • Thread
    • and earth aus earth electricians' talk flat installation method trunking twin twin and earth
    • Replies: 4
    • Forum: Australia
  2. Z

    6mm t&e domestic on 40a MCB ??

    Hi guys, I can not decide to fail this or not: 6mm t&e in domestic environment, cables in mini trunking, on a 40a MCB I would use 10mm of course, but am seeing this in many flats so is it acceptable or its a fail on the EICR? Tank you!
  3. tank

    Reference method

    hello all, can somebody please tell me what installation ref method a t+e cable, in a chase with plastic capping and plastered over, is meant to be?
  4. B

    pvc trunking run under loft insulation

    was asked this question the other day :-If cables are run in pvc trunking under fibre glass in a loft would the Reference method change ie from B (trunking on a wall) to possibly A (in a thermally insulated wall)? if not , what reference method would you go for ? Existing cables in the loft...
  5. J

    Two way light switch Hall /Landing 2 vs 3 core wiring

    On a standard hall & landing 2 way circuit (i.e both switched from either location), does everyone prefer using the 3 core method, with each light being fed by the appropriate circuit (i.e upstairs / downstairs) - are any other methods in current use?
  6. E

    MI cable reference method

    Can anyone tell me what the reference method is for minearal insulated cable clipped direct and ran through ceiling space please?
    • electricpete
    • Thread
    • aus cable electricians' talk method reference
    • Replies: 3
    • Forum: Australia
  7. C

    T+E in 25mm steel conduit?

    Hi every one, Im new to this forum. FNG!. A simple question that I cant seem to find the answer to is can I run TnE in steel conduit? I know singles would be the best option but the customer has lots of TnE and wants to keep the cost down. I would strip out the cable but I dont have enough...
    • cuttys
    • Thread
    • 25mm conduit electricians' talk method steel steel conduit table
    • Replies: 11
    • Forum: The Welcome Forum
  8. S

    Fixing method for insulated Kingspan trapezoidal roof cladding

    Dear colleagues, does anyone have experience fitting a PV system to an insulated Kingspan roof? Would like to fix the system to the steel purlins below, however: 1 - how do I locate the purlins below the roof cladding and insulation 2 - which brand and type of racking can I use? Thanks!
  9. S

    fixing method

    Hi, The attached is the underside of a roof where you can see planks of wood upon which plain tiles sit. The tile pegs just fit between the planks. Can anyone advise me of a good way of fixing the roof mounting system to this roof please i.e. What roof anchors ? Thanks
  10. S

    Demand Factor 'v' Diversity Factor - which is your preferred method

    Gents, I'm applying for CEng through the CIBSE TRR route, my chosen subject determining maximum demands within commercial properties. I've been reading through some of the previous threads concerning manximum demand calculations and note almost everybody has a completely different approach...
  11. S

    Best method to fit Panel to slate roof.

    Hi. The PV array I'm considering will be fitted to our recently-built garage roof. It has real slate (Spanish, I think), 600mmx300mm (I think - I can confirm tomorrow...), each fixed with two nails. Some of the potential installers who came out to quote have warned against using certain fixing...
  12. M

    Manrose 1351 remote fan timer control

    I was looking at one of these to upgrade an existing fan. It is installed in conjunction with a double pole fused spur isolator. The timer control takes a permanent live and a switched live. So if the double pole switch is off and the bathroom light is still on then the fan timer unit unit still...
  13. I

    BS 3871 Type 2 30 A MCB (allowed installation method)

    hi guys after a little advice re a 30 A Type 2 BS 3871 MCB. Now i know they are old but still compliant , just checked the OSG p 49 Table 7.1 for maximum length and installation methods but there not listed. i have the maximum ZS of 0.88 from page 103 table 2d OSG where they are listed. can...
    • ianphilip007
    • Thread
    • aus circuit design electricians' talk installation length listed mcb method methods type
    • Replies: 19
    • Forum: Australia
  14. R

    Preferred method of installation

    Had a look at a job the other day, client has brought a MK RCD Garage CU and wants it connected up. Supply is TNC-S with a 100mA RCCB protecting a BS1361 fuse board which has MCB's Option 1. Replace the RCCB with a time delayed RCD and connect garage CU to new RCD Option 2. Henley block the...
  15. R

    2 Gang Dimmer method

    Right, as I'm a bit of a 2-gang dimmer myself at the moment, I thought I'd post this here to help get my head around it. I've come across a 2-gang dimmer (push on/off) which replaced a standard 2-gang switch, one switch controlling hall lights (circuit 1 on the pic), the other controlling...
  16. S

    HELP !! with Insulation resistance test on ring and lighting circuit

    just trying to builded up my confidence, am going to do an insulation resistance test on my ring and the lighting cicuit, but on the ring their are build-in appliances eg. fridge,wash machine,hob and electric heater that cant pluged out. and the light their are two dimmer and 14 spotlight,how s...
    • soar
    • Thread
    • appliances circuit electricians' talk help insulation insulation resistance insulation resistance test lighting lighting circuit method other resistance ring test their voltage
    • Replies: 28
    • Forum: Periodic Inspection Reporting & Certification
  17. E

    method insurance

    any one heardof this?? was told sparks need it to garuntee that incoming supply is adequate for a buildings use
    • egginyourface
    • Thread
    • aus electricians' talk insurance method
    • Replies: 1
    • Forum: Australia
  18. S

    What is your preferred method of getting your DC cables into the roof void

    Hi I am about to start my first installation and I am thinking about how to run dc cables from the modules into say. . a roof void. I think I would ok with a 20/25 mm plastic conduit through the soffet and into the roof space that way, but I have reservations about the cable/conduit lasting 25...
  19. F

    Testing costs?

    Hi people I'm based in the north west and I am going pricing a job on monday. It's a pir on a commercial building but it's my first inspection and testing job since I set up on my own two months ago. I did quite a bit of testing for my old firm but never got involved in pricing ect. So what is...
  20. L

    Testing and Inspecting

    I have my 2230 testing and inspecting practical tommorow and I just wondered if anyone can tell me if Im doing things right or wrong. The first test we will have to do is the continuity on protective conductors For this I will select the low ohm reading on the test instrument and null the...
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