Recent content by Electro-tech

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    How to calculate the effect of ground Enhansing material (GEM) in Earthing

    How to Improve Resistance to Ground - Technical Articles - https://eepower.com/technical-articles/how-to-improve-resistance-to-ground/#
  2. E

    Extranous conductive parts

    I think it may depend on the ions present in tap water which may vary from area to area. Distilled water has no conductivity.
  3. E

    RCD Tripping times question

    Are they AC or Type A RCBOs ? Are you testing at the Distribution panel?
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    Extranous conductive parts

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    Installing RCBO-Surge Protector inside Meter Cupboard

    This video is worth a look . Not enough Space & heating up are 2 could reasons not to.
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    Does this look, feel, smell or sound right? - Categorising Observations

    Damage, deterioration, defects and conditions within the installation that give rise, or potentially give rise, to danger.
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    UK Selectivity : What does it mean specifically, especially in relation to EV chargers

    I think this is current .
  8. E

    R1 R2 Chestnut time again

    If you have measured all tests correctly on a ring final circuit & checked the r1 + r2 /4, you will have all the necessary check sums & measured results ( Ze, Zs Zdb) to fill out the cert. So whats the problem ! Maybe( R ) Stands for Radial !
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    Bathroom fan: do UK regs require connecting via lighting circuit?

    So are we expected to fit a fan & test the flow rate & notify the LBC with a cert or is this for larger ventilation systems. The regs are getting that mad that they have brought out Document O for overheating .🥱
  10. E

    electrical level 3 302 exam paper b

    Practice Exam Questions for Electrical Science and Principles - https://www.efixx.co.uk/Apprentice%20Hub/science-and-principles-practice-exam-questions
  11. E

    Bathroom fan: do UK regs require connecting via lighting circuit?

    Does this ventilation work come under Document F Now?
  12. E

    When electrics go wrong!!!

    Thought I would share this burnt-out Inverter that I discovered. The customer wondered why it had stopped generating! This was caused by water ingress & water pooling in the bottom causing a short between the grid connection 3 phases & which must have short-circuited the DC MC4 input before...
  13. IMG_2511 edited.jpg

    IMG_2511 edited.jpg

    • Electro-tech
    • Media item
    • Comments: 0
    • Category: Electrical Videos
  14. E

    4mm for a 3.4kw oven?

    Below is cable calc for 25m Clipped direct.
  15. cable calc.PNG

    cable calc.PNG

    • Electro-tech
    • Media item
    • Comments: 0
    • Category: Electrical Videos

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