arc fault

  1. OnlQQker

    What Has Gone Wrong Here?

    Nothing in the video description, or in the comments, what would cause this scenario?
  2. Electrical2go

    Guide To Arc Fault Detection Devices (AFDD's)

    With AFDD's still being a widely discussed topic, we have put together a guide that either you or your apprentices may find useful! Electrical2Go guide to AFDDs In the guide, we answer questions such as: Are AFDDs mandatory? What do Arc Fault Detection Devices Do? Why do we need AFDDs now...
  3. OnlQQker

    Arc Fault Detection Device!

    These are going to become the norm aren't they? I've been reading this https://electrical.------.org/courses-resources-career/free-resources/consumer-guidance/arc-fault-detection-devices/ I was fixing the 21v motor on the Dyson this morning, and as usual my mind decides to wander. For years...
  4. Electrical2go

    AFDD Webinar 10th November & Electrical2Go AFDD Guide

    There has been a lot of talk and concern about AFDDs recently. I am alerting you to a Webinar by BEAMA later this week that you guys might find useful following latest changes to Amendment 2. Here is the link to find out more and register: Mythbusting AFDDs - A Webinar (beama.org.uk) We've also...
  5. T

    Device randomly trips ARC Fault Breaker

    if my brand new fridge is connected to a circuit with an ARC Fault breaker, and if the circuit has ONLY ONE OUTLET on it (the one to which the fridge is connected), then what are the most likely causes of RANDOM arc fault trips. It'll stay on for a week...then all of a sudden...it'll trip (even...
  6. A

    Arc Fault Protection

    Hi Everyone, question. Have furnace in basement (nothing else in basement besides electrical panels - not finished basement). Inspector is saying furnace is required to be on arc fault breaker. Per NEC 210.12, I completely disagree. Any input would be most appreciated. Thanks
  7. A

    UK New CU, Arc Fault Protection and future proofing

    My electrician has just finished doing some work and testing for me. Later this year I am going to build a new extension to my house and he suggested fitting a new consumer unit now, with extra populated ways, in anticipation of my future need for additional circuits. He couldn't quite remember...
  8. S

    Separate Arc fault protection devices not needed with RCD's?

    I'm looking at replacing my old switchboard with a new RCD/AFCI one. I asked the electrician who was quoting the job about Arc fault interrupters. I previously understood these were a different device from RCD's-RCD is to prevent shocks, AFI to prevent fires. I also understood there were devices...
  9. C

    Parallel Arc Fault Resistance Found to be 0.03 Ohms

    Page 337 cites UL testing, where arc resistance was found to be only 30 milliohms: https://www.nfpa.org/assets/files/AboutTheCodes/70/70_A2022_NEC_P02_FD_PIReport_1of2_rev.pdf (You may need to sign in to view, its free) Anyway, here is the value and equation as dervied from UL: The...
  10. 13.8 KV cable spike

    13.8 KV cable spike

    Spikeing a live HV cable
  11. T

    Tiny Home Circuit Breaker Help

    I purchased a 2020 tiny home in November of 2020. Since then I have had one 15 amp arc fault breaker tripping frequently. The arc fault light comes on when reset. Another 15 amp arc fault breaker has also tripped a couple of times, but not nearly as often. I have checked outlets and...
  12. G

    New Home Construction with Tripping Arc Fault Breakers

    Greetings All: I am new to this forum and hope I am in the correct sub-group. We are nearly completed with our new home construction...just a couple weeks from moving in. The 200Amp service panel has 4, sometimes 5 arc fault breakers that repeatedly trip at random times. There are NO...
  13. Wilko

    Arc Fault Detection going global ...

    Well I ventured out into the kungflu today and one of the other items picked up was Professional Electrician for December. So I’m having a cuppa and reading, as I do. The article on p33 is about Amendment 2 to the 18th Edition. All good so far. Then I read that they are proposing all socket...
  14. UKMeterman

    Didcot power station 33KV incident 18/08/19

    Didcot power station cooling towers were demolished today, in the process there was damage to a 33KV substation. The strange thing is that there was signifcant flashover on the 33KV network causing alleged damage and injury to the public. Some videos here What do people think was the...
  15. C

    AFDDs are a massive fraud

    Derailed another thread with AFDDs, so I am starting this one. I will simply say that UK RCDs and MCBs provide arc fault protection as is. UL not only knows that, but extensively researched UK power systems in an effort to emulate the very same concept 40 years. One the simply fact (growing...
  16. Pete999

    Arc Fault Detection AFDs

    There has been a few posts lately asking understandable questions about the installation and the inevitable cost of installing these devices , now at present AFDs are a recommendation only, or that's how I read it, correct me if I'm wrong please feel free. It got me thinking, and this suggestion...
  17. Gavin John Hyde

    18th ed Arc Fault Devices - £120 each!

    Just watched this video on the GSH youtube channel Crabtree have released there 2 module Arc Fault device, reckon they will be £120 each and needed on basically all non light circuits. They dont say specifically but were 'hinting' as the video was likely made last week and would be interested if...
  18. Marvo

    Arc fault detection

    I have a spec that I'm struggling to meet and wondered if anyone had any ideas. I have a panel with a 32A 3-phase +N incoming supply that supplies four 20A single phase circuits (radials). One of the circuits will be under a constant 12A load and the other three circuits will be under...
  19. P

    Is that matthew is the best model to calculate ARc fault current?

    i need a optimal model for calculating arc fault current in low voltage switchboard. where can i get a sample case of arc fault current ,so that i can calculate by different model of formula? Hope that u all can help me....please!!!!

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