Recent content by Jako13!

  1. J

    Advice for the next step

    Hi guys I’m at one of the funny times in my career where I can’t decide on what I want to do. I’m wondering if one of you experiences folks can offer some advice. Here’s a bit about me: I’m now 27, I did an apprenticeship in mechanical engineering 17-21 a lot of metal work fabrication welding...
  2. J

    Experienced worker route

    Thank you for your reply Thomas. I’m just going to go ahead and get the card.
  3. J

    Experienced worker route

    Hi Guys, I’m going down the experienced worker route in electrical installations and wanted some advice regarding a cscs card. I’ve spoke to the JIB and they have confirmed I can get an approved maintenance electrician hold card with the qualification’s I hold. Does it matter what card I hold to...
  4. J

    Level 3 NVQ maintenance to install

    I have seen the JIB do accept my qualifications but it’s really just the fact that it’s maintenance electrician.
  5. J

    Level 3 NVQ maintenance to install

    Hi guys just wanted abit of advice I currently have my 18th edition, 2391/2 testing and inspection and a Level 3 NVQ in engineering maintenance (electrical). I’m also one year through doing a HNC in electrical and electronic engineering. I’m a bit stuck as from what I understand if I’d completed...
  6. J

    Fire compartments in a house

    Hi guys I just want some clarity on fire sealing, I know it’s meant to be done where we may need to penattrate a fire barrier to run a cable. My confusion exsists where we have an upstairs ring circuit with a fused spur down stairs. I know firerated downlighters must be used where a habitable...
  7. J

    Tri rated cable current carrying capacity

    Yeah that definitely my problem 😂 supervisor told me to run it in 25 but my question to him was why it was 35 in the first place. His response was that the cable can take 136amps so it’s all good. But with derating as you’ve stated it could possibly not be protected against overload. I guess...
  8. J

    Tri rated cable current carrying capacity

    Thank you plugsandsparks. The other cable is 1mm tri rated so, am I correct in thinking max operating temp is 85degrees in 45degrees ambient air temp? The plastic trunking is full with control wiring. So if the cable is rated at 136 is there a grouping factor that should be applied as well. The...
  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...
  10. J

    Soft start and high current draw

    Sorry was not, clear its two separate soft starts. The motors drive compressors. I did check the motor shaft was free after which it was. It’s this type https://literature.rockwellautomation.com/idc/groups/literature/documents/um/150-um008_-en-p.pdf
  11. J

    Soft start and high current draw

    Had one today I can’t get my head around. 4Kw motor connected to an Allen Bradley soft start. The panel runs 2 motors Both 4kw. I was called originally due to one motor not running. This turned out to be a tripped the motor circuit breaker (one with adjustable current dial). I tested the rest of...
  12. J

    Tri rated cable and grouping factor

    If it’s 3 phase 3xsingle core and control circuits within the trunking how does this related to how many loaded circuits? Found this in bsen 60204-1
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    image.jpg

    • Jako13!
    • Media item
    • Comments: 0
    • Category: Professional Electrician
  14. J

    Tri rated cable and grouping factor

    I just found this so 45degrees in free air.
  15. F45CC410-8833-4959-A149-24BEBFBED041.png

    F45CC410-8833-4959-A149-24BEBFBED041.png

    • Jako13!
    • Media item
    • Comments: 0
    • Category: Professional Electrician

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