Pyro + me

[i=p/u]

Have a board to change tomorrow with old pyro entering top and bottom of board, I've heard some guys saying they can split , what do they mean and any tips just. Thanks.

 

[Engineer54]

If all the MICC's are coming into the top (or all bottom entry) of the existing CU it couldn't be easier. Release all the gland locknut/rings inside the CU, carefully straighten the cores out straightish, release the CU wall fixings and slide the CU enclosure away from the cables.

Once you have marked and cut the 20mm holes for the MICC glands on the new/replacement CU, installation will be in reverse to above!! Shouldn't be any need to bend or muck about with those MICC cables, to cause damage....

 

[not clever]

Is the cu flush or surface?
If it's flush just get a larger cu to cover it and extend circuits into new board.

 

[Guest55]

for gods sake dont even look at pyro , even a brief sidewards glance in its general direction could cause it to blow itself apart !
seriously !

he-he.

 

[jaypp]

for gods sake dont even look at pyro , even a brief sidewards glance in its general direction could cause it to blow itself apart !
seriously !

he-he.

that's why churches constantly have collections for repairs!

 

[High Tower]

As some of the lads have said, THE most important thing is , slacken the backnut ( the bucket part) of the gland, all the way off so the gland spins freely on the pyro and pot, it won't split if you do this, also don't be rough and give yourself plenty of slack length which will stop you over bending it. I've just done hundreds in the national indoor arena in Birmingham with no casualtys, it's twice as strong as you think it is, just has to be handled correctly

 

[KAS1]

MICC why is there so many on here who are frightened by it, isn't this first year apprentice stuff, or are they only taught FP200?

 

[Simonslimline]

When doing the AM2 its FP200, although we have a practical assessment at college soon which involves both MICC and FP.

MICC why is there so many on here who are frightened by it, isn't this first year apprentice stuff, or are they only taught FP200?

 

[KAS1]

That's good to hear, it's easy as long as you are taught correctly.

 

[Engineer54]

When doing the AM2 its FP200, although we have a practical assessment at college soon which involves both MICC and FP.

According to officialdom, MICC has been dropped from AM2 assessments, and replaced with Cat5/6 crap!! lol!!

 

[KAS1]

Soon MICC will be a specialist's department, I can picture it now, a specialist company advertising for sparks over 50 capable of repairing/installing MI must have own MI tools and a pyro straightener will be an advantage, must not be allergic to powder lol

 

[Old Jag Lover]

Pyros are alearned skill,if you bend it and it snaps you cant just re pot it ,get a blow torch or a car clamping vampire removal tool,aka a gas axe,to gently warm the ends otherwise it will fail a meg test.

 

[UNG]

When upgrading installations that have Pyro it helps if you have an understanding of the cable and you need to take you time and have a bit of patience. The crash, bang, wallop approach will end in disaster and take longer in the end to sort out

 

[MDJ]

I actually think the op asked a good question and he has had a couple of good answers in general.

 

[Pete999]

If it snaps put a new pot on it, what's the problem?

Thats going to be simple isn't it, just a couple of problems with it supposing its imperial MICC, the OP may not have any experience with MICC, not a lot of recently qualified electricians have

 

[MDJ]

Pete is right, not many electricians these days have experience with pyro, it has in general died out and although a lot of us have used it some even many times it is not the type of wiring method commonly used today as it was 30 years ago. It is used on petrol stations a lot these days and unless you work in that enviroment it is unlikely many would have handled it. A pot snapping off the end of a pyro would be a difficult job to sort out, it could be old imperial and you will have to find the other end, completely disconnect, then meggar through to re code and ensure the new pot if you can find one is clear and safe to reconnect, the Op has asked a decent question and theres nothing wrong with the opening post in this thread.