TERMINATING MINERAL INSULATED COPPER CABLE IN 60 SECONDS -  

I don’t know what I just watched, but it was pleasing to my 3 am eyes

As a carpenter I have no idea what this sparky is doing but he seems to.

It's all clear. Most important thing is to don't forget to put an insulation jacket on first.

To those that don’t know what he’s doing is he’s making a 2 hour fire rated connection. MI (Mineral Insulated) Cable is a Solid copper core that carries current its surround by a fire retardant white mineral powder which is then encased in a copper sheath that’s acts as a ground. It’s intended use is in buildings with large capacity. The cables intended use is for powering emergency systems that under any circumstance must be continue to operate under the condition of a fire. MI cable will give you the minimum 2 hour fire rating and allow things like Fire Pumps, Fire alarms and various other required fire suppression systems to continue to operate even if the cable is directly exposed to a fire. Specifically the reason for such a complex process for a splice or connection is because damaging or cutting the copper sheath ruins or breaks the fire rating on the line. To retain that fire rating, special connections approved by the Fire Marshal’s code book (IFC) must be made. (Edit) re-looking at the cable type is the specific MI cable he’s using has two solid conductor’s. Mi cable has the ability to be ordered with up to 3 solid Conductors with certain size limitations.

Fun fact: Terminating cables actually makes you a Terminator.

Для тех, кто не знает, что он делает, он делает 2-часовое огнестойкое соединение. Кабель с минеральной изоляцией представляет собой сплошной медный сердечник, который пропускает ток через огнестойкий белый минеральный порошок, который затем заключен в медную оболочку, действующую как заземление. Он предназначен для использования в зданиях с большой вместимостью. Кабели предназначены для питания аварийных систем, которые при любых обстоятельствах должны продолжать работать в условиях пожара. Кабель MI даст вам минимальную 2-часовую огнестойкость и позволит таким вещам, как пожарные насосы, пожарная сигнализация и различные другие необходимые системы пожаротушения, продолжать работать, даже если кабель непосредственно подвергается воздействию огня. В частности, причина такого сложного процесса сращивания или соединения заключается в том, что повреждение или разрезание медной оболочки разрушает или нарушает класс огнестойкости линии. Чтобы сохранить этот класс огнестойкости, должны быть выполнены специальные соединения, одобренные сводом правил пожарной охраны (IFC). (Редактировать) повторное рассмотрение типа кабеля показывает, что конкретный кабель MI, который он использует, имеет два сплошных проводника. Кабель Mi может быть заказан с 3 сплошными проводниками с определенными ограничениями по размеру.

Nice Job Bro! - Couldn't have done it better myself, especially since I have not a single clue what just happened here & I thought I was an electrician.

Good job brother. That’s some grade A work right there. What is happening?

I like the part where he terminated the mineral insulated copper cable.

“Terminating Mineral Insulated Copper Wire” I only understood two of those words but this looks like a banger

That seems like a lot of work, even with all the extra tools used to help speed it up

I haven’t used MICC in years but that’s a skill you never forget. Very satisfying to watch

I have no idea what that is or what you even did... but it was impressive.

You can tell this is a genuinely informative video because there's no shity music playing.

Making off MICC is a forgotten art. Nicely done! 👍

I didn't even know what this was or why it existed... But learned it is still the critical backbone of fire alarms in may buildings. Thanks for teaching me something new!

I like that there are things that the public (me included) has no idea exists but are designed to help save our lives.

“This one cable has kept our home lit for generations. And it will continue to do so for generations to come- WHAT DO YOU MEAN YOU SOLD THE HOUSE?!”

Brings back memories of college and 15th edition regs good times thanks man

How did this become so satisfying.

You can tell this man is dedicated. Just listen to his breathing

Thank you bro....Micc cable termination is not as simple as it looks... I have done it

Brings back so many memories this does I used to love finding earth faults on Micc cables and not everyone’s cup of tea in the fire alarm world but I had some of the best mentors you could ask for and worked with lots of amazing intelligent electricians and engineer who helped me more than they will ever know. Lucky for me right place right time I guess.

We call it MIMS (mineral insulated, metal sheathed) in Australia, and it’s been decades since I’ve done it.. 👍

me, an intellectual: “Ah yes the chili pepper method 🌶 “

This is a work of art and a true craftsman at work.

I learnt to do this as an apprentice in the 1960s. The biggest fault was not doing an insulation test before putting in the sealant. It needed to be as high as possible due to our voltage of 230/400Volts.

I have absolutely no idea what he’s doing but it’s satisfying watching all the parts get put together and stuff

Нихуя не понятно, но очень интересно 👍

I was on a job as an apprentice & we had to install 500mc MI cable. It was hell

Good to see the technique has hardly changed since I completed my apprenticeship in 1970😊

What in the name of MacGyver is going on here 😲😵😂

He is a next level sparkie.. clean workspace and no energy drink. That's a rare sight! Lol

I used to do this sometimes when I worked as a fire alarm installation engineer. The cable used is commonly known as pyro, is extremely durable (can withstand blows from a hammer), fire proof (hence the name), and as you can see, time consuming to make off (takes a lot longer than 60 seconds). Looks very neat when installed well though and will last for a very long time.

I have done this once as an electrical apprentice many years ago. it takes a lot of skill. Thanks for posting this. Brings back memories.

Impressive. I am an electrician with 35 years experience and impressed what a good job can be done with the proper tools. I have worked with that cable but struggled with old worn out equipment.

Prior to those stubs we used to use a plane disc (with appropriate holes ) and beads inserted into the ends of the sleeving to make a stub /sleeve assembly.

Much respect... Don't know why... all of a sudden, I feel like I need to learn a craft 🥸

bet this nightstand lamp will look nice

I was super confused the first time I see mineral insulated cable. It was in a refit of an old Vinyl Factory in London.

Fascinating! I love that craftsmanship on MI cable that the public hardly ever gets to see, great video!

Man I couldn’t imagine how long it would take to do that at every location in a new building with lots of feeders like a hospital or something. Very cool none the less

Me watching the first 5 seconds "what a macanical Bayblade launcher" 😂

This is mineral insulated cable. The red sheath shows its being used for a fire proof circuit. The mineral powder absorbs moisture so the end has to be sealed with the fitting shown here.

Why did i think he was gonna shoot the wire like a bow and arrow when he tried to straighten it😂

Don’t know what just happened but i can tell that dude’s skilled.

Oh those were the days of pyro.

Electrician here, and I don't even know where to begin.......

Blimey that brings back memorys. Can't remember the last time I worked on MI cable . Worked with it a lot many years ago . Used to love working with it 👍👍👍

Can’t believe you can do all of this during an earthquake.

A process so complex not even he knows what he just created.

I’m a masonry but I find electrical work fascinating.

Thanks for this. I managed to find my potting tool box. I'm now going to waste half my day trying to find a piece of pyro in the back of the workshop just so I can pot it.

RU-vid algorithm works again! Was actually trying to teach myself how to do this the other day. Thanks for the post guys genuinely helped loads

Sign of a true SPARK being able to terminate an MICC gland

27 years in the biz ain’t seen this. Good work.

The only part thats missing is testing between the cores and finding a short, before lobbing all the tools across the room and storming off to get some FP400

This is something that costs a lot of money to have done in the field. I am a 351 electrician and have personally had to hire a certified MI Cable terminator. Not cheap. Or you can pay the factory big bucks to terminate and then you pray that your wire measurement was spot on!!

Reminds me of the days I used to wire control panels with multi core Pyro on chemical plants, Interesting work that was, once you get used to handling it and dressing it, it makes a really neat, tidy and impressive finished job.

I really enjoy working at MICC

Been a sparky for 40 odd years and never used pyro.. I loved it at college though the way you could smash it with a hammer and still pass an Insulation resistance test.. 😎👍

Wow blast from the past. I haven’t used that stuff in over 25 years. Fun to watch and see it again though, thanks.

I haven't terminated pyro in years, a good demonstration.

I'm an electronic engineer...weird as it sounds but sometimes I just love putting cables together...so long as I have the right equipment at the time. It's when you get a lovely neat and tidy layout put together that gives a bit of satisfaction.

MI5 building is predominantly wired in H grade pyro. All the fire alarms in royal courts of justice are done in pyro,some bare stuff too in listed areas

40 years in the trade and the only mention I've come across is in the NEC. Never seen it in the field, let alone seen it terminated. As in any craft, the right tools and experience are key. Also, it's a whole different ball game in extreme heat or cold 10 feet down in a manhole or 10 stories up on a scaffold.

Haven't done this in a few years. Used to work on churches, and it's used a lot there. Very satisfying.

Pretty cool to see. Learning these skilled trades stuff is always kinda cool.

This man did a thing that’s smarter than my brain bag I sometimes keep stored in my head space. Fascinating to watch and just another reason I don’t mess with electricity. I confuse myself with it when trying to figure it out, so I’ll just pay a pro to do it instead.

А я все видео думал "и зачем ему перец на проводе?" А это оказалась термоусадка😁

For those who don't know. This is what you watch randomly in the middle of the night and have no idea what's going on but it is interesting as hell and you should be sleeping instead of looking at your phone.

Take me back to college days. 😂

MICC CABLE. Becoming a more and more specialised type install, I very rarely see this specified on new installations. This will become a lost art in the years to come which will be a shame as it creates a built to last installation.

Sparky's always showing out with their toys. And yes he'd be the one to hire for a correct job 👍

I’m gonna assume this is what airport security is looking for when they X-ray your bags lol

Lovely work, It’s been many years since I worked with MIMS - I used to love it. 👍😊

You’re supposed to just twist them together and wrap em with duct tape. This guys doing it wrong. I’m a master electrician so I know.

MICC is fire resistant. You will see Exit signs and fire alarms wired with it, for example. When I first started work as a trainee builder this was called pyro. But the modern name is now MICC.

Nothing like high quality specialized tools for the job.

I first came across a mineral cable in my teens. I was changing the old consumer unit (ceramic fuses) in the garage. Boggled me how the copper stayed apart through the various 90° bends.

He’s the only person who can only do this type of stuff and make it extremely satisfying to watch

I love when you have everything around to make the job easier. I almost never get the right tools to get the job done so its always just make the best out of the situation im in. 31yo and gotta say im getting good at working with shitty tools.

Having a desk job I can confirm this is exactly how it is done.

Thanks! I never saw a mineral insulated cable being glanded before. I was wondering how they were doing it.

Пояснительную бригаду пожалуйста, я ничего не понял но выглядит интересно и полезно

Only 2 things I do extra. Whilst stripping and potting I put the putty under my arm pit to warm it up and after the pot has gone on I use grips/pliers to pull the cores straight to ensure they haven't twisted inside the pot before I put the putty in. Also use a bar of soap before stripping.

Anyone wondering this is MI cable (Minerally Insulated), it is made out of solid copper basically, with an outside shell of solid copper, then a thin layer of magnesium oxide powder, then a solid copper core (which is the actual electrical conductor) then used in place of other wire bc of its high burn temperature and is meant to burn for up to 2 hours before any issues. It is used for fire pumps, etc. so if the whole building is on fire, the MI cables jacket will not burn up to two hours. I have been running this shit for the past three months. From 350,000 circ mils, 250,000 CM, #12-2C AWG ,#2 AWG, 3/0 AWG, etc. and it’s a SOB! This smaller size, which I believe is a 14-2c (#14AWG - 2 Conductor?) isn’t that terrible but, pulling the 250’s, 350’s by hand is TERRIBLE! The other trades on this hospital project think we’re plumbers or fitters bc this looks like copper pipe (and feels like it, except it’s solid in the middle!) the only way to shape it is hitting it with a hammer and using pipe benders to make bends in the run, then bundle and secure it with worm clamps. This will def make a man out of you!

The borderline-Parkinson’s and the mouth breathing really show the level of pro this guy is. 10/10 actually enjoyed.

When as a first year apprentice in the 90s we had to spend a month in the stores counting and sorting loose micc accessories to correct gauge into there own draws as well as circuit breakers and conduit accessories etc from everything that came back from jobs extra and just dumped over the years, counting how many.

I sure did just watch something

I've done thousands of those, never needed a straightener and always tap out the excess powder before filling the pot. 8.5/10

For a second I thought he was gonna make a comically large alligator clip

I don't know what exactly you did there, but it was so satisfying to watch

We call this pyro cable in uk

Idk why but it’s so satisfying to watch.

In 35 years in the fire protection industry I’ve never seen any MI cable. When we need a 2 hour rating, we use conduit. We also have CI cable (circuit integrity cable) that just has a way thicker rubber coating on the conductors. High rise buildings usually have a fire alarm riser that will go up through a series of electrical closets that are stacked up the building. These closets have a 4 hour rating

Man I just love watching ppl do their daily..small or big we all have our part to play..ppl make shit happen..🤝

I love seeing vocational skills in action.

For those wondering….this is very high heat environment electrical cable.

Nice reminder of the past, I did a London Underground station fire alarm and a few schools and churches. I think it was 100 quid per point back the then! I would use a tiny bit less putty, leaving a small air pocket to one side ensures the seal seats better