Pyro

[sammyshooter]

Morning guys, bit of nostalgia for you vets.

Wiring up an MOT bay, went to see the excavation so we can draw up the plan, they pulled some pyro out that was buried 1.5m deep, and was amongst a news paper that had a 1970's date on it.

Gave it a whirl on the tester for banter, still returning <199 Ohms on insulation test between live conductors!

Been battered by the jcb as well.

 

[Darkwood]

Morning guys, bit of nostalgia for you vets.

Wiring up an MOT bay, went to see the excavation so we can draw up the plan, they pulled some pyro out that was buried 1.5m deep, and was amongst a news paper that had a 1970's date on it.

Gave it a whirl on the tester for banter, still returning <199 Ohms on insulation test between live conductors!

Been battered by the jcb as well.

Either you don't understand what a good result is on an Insulation tester or your not aware of how to express it in print... hope you don't fill the cert' out!

Insulation test >199 Mega-ohms is what I think you meant.

 

[Pete999]

Strip the ends back about 6 or 7 inches and you will probably get an even better IR reading

 

[Darkwood]

Strip the ends back about 6 or 7 inches and you will probably get an even better IR reading

I think the OP is expressing how good it still is even after been battered (last line) ....so suspect he doesn't know how to represent the reading in text.

 

[Jonspark]

Morning guys, bit of nostalgia for you vets.

Wiring up an MOT bay, went to see the excavation so we can draw up the plan, they pulled some pyro out that was buried 1.5m deep, and was amongst a news paper that had a 1970's date on it.

Gave it a whirl on the tester for banter, still returning <199 Ohms on insulation test between live conductors!

Been battered by the jcb as well.

Glad to hear your pulling out dodgy cables, sell it for scrap!

 

[sammyshooter]

<><><><>

My bad, it was early

 

[sammyshooter]

M M M M

And yes, just expressing it's resilience

 

[Risteard]

Insulation test >199 Mega-ohms is what I think you meant.

Or perhaps Megohms! ;-)

 

[Engineer54]

Gave it a whirl on the tester for banter, still returning <199 Meg ohms on insulation test between live conductors!

Don't think any of the old hands here will be in the slightest bit surprised by that finding. A MICC cable installation installed by competent electricians will out live the installer and his children, even if taking a few bashes over the years, so long as those bashes don't penetrate the sheath.
Probably the best general small to medium multi core cable size system ever produced

 

[ian.settle1]

Don't think any of the old hands here will be in the slightest bit surprised by that finding. A MICC cable installation installed by competent electricians will out live the installer and his children, even if taking a few bashes over the years, so long as those bashes don't penetrate the sheath.
Probably the best general small to medium multi core cable size system ever produced

Rather work on Pyro any day rather than steel conduit

 

[tazz]

No manufacture todate has been able to produce a life saving cable, equal to MICC

 

[snowhead]

I'd be shocked if it wasn't still good.

 

[7029 dave]

No surprise to me what so ever. I have flattened an piece of MICC, put an blow torch to it, then IR the piece, still of scale reading.!! ( experiment of course).

 

[Andy78]

I am not surprised either. I have seen a test similar to 7029 dave's above. Quite astounding the abuse it will take.

 

[tazz]

Shown this video many times on here, but may help newbies to micc.....you can skip to 5.30 for cable test fp200 vs MICC

https://www.youtube.com/watch?v=N3ZAYFSwInk

 

[Redvanman]

I use to love doing MI but sadly I don't have any call for it now.

 

[tazz]

There is still a major call for it in Chemical, gas production....apart from its fire proof properties, its ability not to compel gas or fluid is another bonus

 

[Silly Sausage]

........... its ability not to compel gas or fluid ....................

Eh? :confused5:

 

[tazz]

ok to prevent a capillary reaction within the cable....

 

[Andy78]

MI.... thwarting the effects of fire since 1938

 

[Engineer54]

What better definitive for, ...I Rest My Case M' Lord!! lol!!

 

[trev]

It's flippin great stuff and as has been said earlier will outlive it's installer many times over if done right.
I find a lot of people are frightened of it but there's really no need to be (as long as you have some decent experience of it I suppose) It's modern equivalent (FP) is utterly useless by comparison.

 

[ipf]

Ahh...sums it up pretty well..nothing to touch pyro in the right situation. I only wish I'd have had my mobile in the 70's and 80's to take a few pics of boiler houses done in the stuff. Drilling 20 or 30 3/4 holes in in the top of a control panel, making and shaping and then standing back admiring the symmetry of it all....and nobody else interested. Then touring a burned out working mens club in South Yorkshire...everything black and charred with even the steel framework twisted and distorted and what was left, strung up between the uprights, laughing down on all the rubble...we all know. Oh for me i phone!!!

 

[Knobhead]

Morning guys, bit of nostalgia for you vets.

Wiring up an MOT bay, went to see the excavation so we can draw up the plan, they pulled some pyro out that was buried 1.5m deep, and was amongst a news paper that had a 1970's date on it.

Gave it a whirl on the tester for banter, still returning <199 Ohms on insulation test between live conductors!

Been battered by the jcb as well.

Use “charmap” on your PC and you could write the reading correctly as >199MΩ

What are you going to replace this “pyro” with bearing in mind it’s a garage pit and falls outside the scope of BS7671 regulations?

 

[sammyshooter]

Swa by the looks of it, is that blasphemous? Turns out we only have to supply 3 phase to lockable rotary isolators, and then the technicians take over.

 

[Fin170]

I can't believe people just painted straight over all of it where I am, same with the massive copper earth bars all over the place...

 

[Bobster]

Remember a service pit can fall under ATEX regs.

I see this a a downfall in lots of garages I've been in.

 

[Jonspark]

and how many explosions have happened by people dropping inspection lamps in to pits?

 

[Tidy Max]

When we were taught mi in college we got to beast ot with a rubber hammer and totally flatten it and then test. Good fun, even better when one of thE lads hadn't made the end of correctly..... BANG. On our AM2 the instructor used to put ear defenders in prior to energising the install lol.

 

[Pete999]

Going to get grief over this, what happened to learning to work with MICC on the job?