carrying

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  1. holmestm

    Should the armour of an SWA carrying twin and earth cables also be earthed (with banjos etc)

    I have an existing installation extended in 2015. The existing cable had 3 cores and used the armour as earth, with connections soldered onto the SWA gland where required (e.g. in external sockets). At the point the extension was added the contractor took the armoured earth and connected it to...
    • holmestm
    • Thread
    • and earth armour cables carrying earth earthed regulations swa twin twin and earth
    • Replies: 10
    • Forum: DIY Electrical Advice
  2. I

    Can anyone give me the answer and source for this question on current carrying capacity

    Hello I just need to know the correct order and a source which shows me that it is that order please When calculating the current carrying capacity Is the correct order Ib ≤ In ≤ It ≤ Iz Or Ib ≤ In ≤ Iz ≤ It Niceone
  3. tony9i9i9i

    6242B Current Carrying Capacity and Volt Drop /A/m

    Hi, go easy on me please, I've just returned to the trade, well I am about to, I received my Gold Card last Thursday. I've been gen'ing up for a couple of weeks going through the regs book, watching some fantastic youtube videos, and working through cable calcs and looking at products and...
  4. S

    UK DNO Concentric cable current carrying capacity

    Had UKPN come out to a property recently to upgrade the main fuse from 60A to 100A but when they arrived they said that the supply cable which he confirmed is a 25sq.mm. CNE aluminium concentric cable (1-phase, burried) for the PME supply is only able to take a 80A fuse. They will have to dig...
  5. J

    EV ultra cable, current carrying capacity

    Hi Doncaster EV ultra cable: Does anyone know what the current capacity of these cables is given particular reference methods? The spec sheet just says 'Max current' 45amps (for the 4mm) but it doesn't state the reference method. The manufacturer does have a very handy cable calculator...
  6. S

    Current carrying capacity of sy cable ran in pvc conduit

    Hi Guys Any one know the current carrying capacity of a 4mm 3 core single phase sy cable ran in a 20mm pvc conduit? Not sure of the right table to check Thanks
    • sparky1888
    • Thread
    • cable capacity carrying conduit current current carrying capacity pvc sy cable
    • Replies: 2
    • Forum: UK Electrical Forum
  7. T

    SWA Carrying DC - Correct way to earth

    I know PV installers sometimes use SWA to carry DC into the house especially when the PV is ground mounted. Can anyone help me understand the correct way of doing the following: 1) Earthing the SWA armour, should this just be connected to the house earth as it would for AC or something else, I...
  8. B

    Regarding carrying out an EICR on my own home.

    I was registered with the NICEIC until about 3 years ago as a competent person under BS7671, 17th edition. The EICR on my home expires shortly and I am capable of carrying out the appropriate testing and measurement but am I allowed to do it? As I am planning a cellar conversion, I will be...
  9. J

    Tri rated cable current carrying capacity

    I have a 37KW motor and need to replace some burnt out 35mm2 tri rated cable(loose connection). I’ve looked at 25mm2 Tri rated cable the data sheet says it’s current carrying capacity is 136amps. The lengths will be 0.5m.Is there any other consideration I should take into consideration? It will...
    • Jako13!
    • Thread
    • cable capacity carrying current current carrying capacity rated
    • Replies: 6
    • Forum: UK Electrical Forum
  10. D

    Does the ground wire need to be the same size as current carrying conductors?

    Running #8 to AC condensor. Does the ground wire need to be #8 as well?
  11. HappyHippyDad

    What are you responsible for when carrying out electrical work?

    I have been asked by Trading Standards to carry out a report on some electrical work installed by another company (5 years ago). The 'new' wet room has basically rotted away over 5 years, it has now been completely removed by another firm and is in the process of being redone. The work by the...
  12. Anthony Deakin

    Line carrying voltage, neutral no voltage

    Hi all, I have been trying to work out why all the up stair sockets have voltage coming into the line but none of the neutrals. The ring is on a 16amp mcb. Any ideas why? Thank you in advance
  13. johnwicklover

    Carrying out a refurb on old panel boards, worried about discrimination.

    I am carrying out a refurbishment job on this old panel board and fitting in a new panel board from Schneider. The current supply to this building is a 100amps BS88-2 Gg (assuming). I am planning to protect the outgoing submains with the NSX100 ML 2.2 set at 100 and 63 respectively. I don't know...
  14. M

    5v 2.5 amp adapter (IN 230v ac 0.2 amp max) damaging when connecting to a high power line which is carrying 50 amp current

    Hi, I have a product in which 5v 2.5 amp adapter (input 230vac 0.2 amp max) used. The adapter is burning out sometimes usually when I connect it to the one of the phase (in 3 phase line where ac >30 hp motor is connected) carrying upto 50 amp current. Now my question is why the adapters are...
  15. Doomed

    current carrying capabilities

    So came across some old aluminium T&E yesterday, the smaller stuff with only 3 strands in the live, 3 in neutral and single strand for CPC. I cant remember its maximum current capability. Its been used for running an immersion tank on a B16 MCB, about 10m from the dis board, mostly under floor...
  16. HoverSPRX

    Max Demand/Diversity Query

    Hello All, Iv been asked to pick up the remedials on someone else's EICR that was done last year on a school for Deaf Children. One of the items listed on the report is the conductors leading to the sub mains from the main panel are undersized. I popped the cover off to have a look and sure...
  17. M

    to label or fault when carrying out EICR

    a question that i have to ask sorry if it seems daft in advance, when carrying out a PIR,EICR you come accross boards that dont have labels on them , do you put this on report as code 3 ? or do you just take the time to put a new label on the board ( assuming you have them to hand)
  18. Gavin John Hyde

    Waste carrying licence, do we need them?

    I got pulled over today by the council waste management jobsworth otherwise known as the Bath branch of the Gestapo. It seems that I should have had a waste licence to take my scrap metal to the scrapper! As until it arrives at the scrap yard and is processed it is waste and i should have...
  19. JackSparky

    Carrying out work with NO Part P

    Hi all, Could someone list what work i'm able to carry out without my Part P, thanks! (i've tried google but nothing! haha)
  20. jaydub

    Advice on carrying out EICR's

    Just started up on my own, haven't been asked to carry out an EICR yet, however I have, unbelievably, never found myself carrying one out, so feel I am a lacking in knowledge and experience at the moment to carry them out, should I get asked to. Do you need to have a special qual to carry them...
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