This is why torque ratings matter
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- Опубликовано: 27 дек 2023
- Yo! In this video we are replacing a 250A molded case circuit breaker that was destroyed from over torquing.
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The works carried out in the video and the opinions shared are my own, and not representative of the associates and companies in the video.
This content is purely for entertainment purposes and is in no way a "how to", tutorial or educational video.
Please consult an electrician when dealing with any electrical installations.
#electricianlife #electrical #electricalengineering 
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11:20, looks like aluminum cooling fins for the arc chutes. 30:37 you can see the arc chutes, when the breaker trips the arc gets drawn up in to those plates and it quenches the arc, so they heat up. Old school high voltage air break breakers worked the same way. Now they use vacuum bottles or SF6 in high voltage instead of arc chutes.
Here he is!!! 🙌🏽🙌🏽🙏🏼⚡️⚡️. Fantastic work as always
Haha thanks bro! 🫡
Like the construction of that board, with all the safety covers. The UK has much better and safer kit than we do here in the US.
The copper fins inside the switch are designed to help break an arc when switching... and bars are tin plated... good video Mike
Your videos should be watched in a cinema. Keep up with this work, Mike!
Very kind, need to sort the shakes out first!
Copper is coated to prevent corrosion/the dreaded green death. Normal with nickle/tin.
I found the directions that come with these types of switches are not great at all, manufacturers could do a lot better. Unless you keep the torque wrench at 90’ to the bolt when tightening, pressure will be applied to the side wall of the housing and this will crack as it’s quite flimsy. Overall a bit crap really considering it’s from such a big manufacturer in this field.
Not impressed with Eaton here to be honest
@@residualcurrent Eaton is so-so here in the US, better than GE though which is total shite. GE breakers are slow to trip on shorts (no magnetic trip in most styles) and have horrible failure rates when new (standard breakers >5%, GFCI (your RCD) >15%. I use Square D exclusively and have had very few issues.
Happy to see a new video. These are always fun and calming to watch.
Thanks 🤝🏼
Good stuff Mike
best RUclips electrician ive seen keep it up mike👍
Thanks man!
Good video as always. Would have been interesting to tighten up the screws on that old switch to see exactly at what torque the plastic breaks.
We tested 5 more switched as they was all over 15Nm which was mad!
Great video Mike. Quality job
Thanks Brian 👍🏼
Another great work overview, mate. Loved the image you used for the thumbnail.
As someone who loves to do photography of working motives together with hobbies (ex. G-Shock and construction or Fluke, electrical installations and knive collecting) that thumbnail really "nails" (pun intended) the subject.
The best wishes for you and you loved ones in this festive dates.
Thanks man, I’m really into film and photography as much as I’m an amateur haha so I appreciate the attention to detail 🤝🏼
@@residualcurrent well if you get your photo and video skills at the level of you electrician skills, you will be one of the best in the field.
Attention to detail and professionalism you have so the rest is just practice.
Great video again Mike! How long is the whole electrical rebuild project going to take about?
I can’t say much but it will be a long time!
As far as I am concerned,if it's not EXACTLY the same,then it's not the same model,it may aswell have a different cat number for what it's worth,for a switch that is supposedly the same,it has a hell of a lot of differences.
Thought you had gone AWOL again!
Top video as always mate
Thanks man! I’m back just hit a few bumps in the road recently, looking forward to doing so much going forward 🙏🏼
The GOAT is back
Thanks man, can’t wait for 2024 👊🏼🎥
Hi Mike, would you record the torque settings and the torque driver used on your test certificate, just to cover yourself if anything happens.
Great shout mate!
Residual current to 100k subscribers, let’s do this!
Hi Mike. What's the reason for the Isolator / Switch Fuse? You mentioned Division of Responsibility.
The board was existing and not installed to the best standard, while we are EICR ing the whole install our replacement submain needed a EIC, the isolator allows us to stop our EIC at the isolator and not take installation responsibility for the DB 👍🏼
@@residualcurrent I see. Thanks for that. I guess the replacement main switch in the DB wasn't the initial plan.
It definitely wasn’t, we ended up changing 5 more main switches throughout the job for the same issue 🤦🏼♂️ they came under remedial’s on the EICR 👍🏼
@residualcurrent Seen this a lot with contactors. A lot to be said for correctly tightening up terminals to the right torque settings. Fantastic content. Have a great 2024 👍
Copper links are tinned to help prevent corrosion👍🏻
I knew someone would know! Thanks 🤝🏼
Made of butter.. but torque settings are insurance..
You know it
the language in this video at the end , dreary me
Just wanted to be inclusive of you mate 😂
Torque is cheap
I've said it before, I'll say it again. Get some decent lighting, your videos are too dark. It's ironic as you have unilite as a sponsor 🙄🤣
Haha sorry its honestly just creative choice and the way we expose those shots in the cupboard, sorry its not your cup of tea 🙏🏼