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.

 

[i=p/u]

Interesting reading all your posts, plenty of replies....

i did do a gland/pot at tech but haven't came across it till now and it seems to be in many houses in Edinburgh .. As for the board change we were told to leave it for now , but we have break into ring tomorrow to separate rooms , which we will be using choc boxes and t+e .lol..

 

[Engineer54]

Interesting reading all your posts, plenty of replies....

i did do a gland/pot at tech but haven't came across it till now and it seems to be in many houses in Edinburgh .. As for the board change we were told to leave it for now , but we have break into ring tomorrow to separate rooms , which we will be using choc boxes and t+e .lol..

That sounds about right, ....the philistines rule!! lol!!

 

[Guest55]

yeah , we might as well have called it the "T&E + me" thread lol.

 

[tazz]

Like any product it has its plus points.....unlike FP, it does not compel or allow gases to be sucked through it like a straw.....still class as enhanced fire cable, outlasting the 30 minute 200 deg reg, by hours not minutes......can handle more current than conductor twice its size......has always been class as LSF.....after 40 years of installation, still passes a full 500v insulation test.
Would say pyro still has a place in installations.

 

[UNG]

Always remember going to IFSEC when FP appeared on the market with Pirelli making big claims about how it met all the same standards and went through the same tests as MI so I asked them why their show rig only had the cable in a flame with a live circuit running on it when the BICC stand had a similar set up with MI cable with a hammer beating it then quenching it with water and then started the cycle again then it came out that one piece of pyro had to be used for all the tests while a different piece of FP was used for each test. A few years later at IFSEC BICC had a section of the pyro installation that was taken out of the channel tunnel after the fire on their stand if they had used FP I don't think there would have been anything left for Pirelli to display

Pyro might be expensive but FP is a compromise where safety or life may be at risk

 

[tazz]

Cant disagree with anything in you post UNG, other to say everything has its purpose, and place. And risk assessments should show when to use pyro or fp

 

[ipf]

Saw a club burned down in sheffield years ago...only thing left of it was ashes and pyro, still with it's clips on.

 

[Engineer54]

Saw a club burned down in sheffield years ago...only thing left of it was ashes and pyro, still with it's clips on.

Wasn't Romeo & Juliets was it, massive place too?? That was a real great club/disco back in the 80's....

 

[UNG]

Cant disagree with anything in you post UNG, other to say everything has its purpose, and place. And risk assessments should show when to use pyro or fp

It is quite frightening the lack of understanding of how FP cable performs in a fire is down to how it is fixed or not as the case might be it's not unusual to find fire alarm FP in pvc trunking with no metal clips to hold it should the trunking melt in a fire.
FP has it's uses I think it just needs more education on it's correct use, installation and limitations

 

[tazz]

Interesting video for you, testing fp and micc...bit long winded, but shows a massive difference between the 2 cables.
Fire Proof / Survival Mineral Insulated Electric cable - YouTube

 

[7029 dave]

Very interesting, MICC all the way for me, it's the best and always will be, the younger guys and gals should learn how to work with it, bring it back in the training centres!!.

 

[ipf]

Wasn't Romeo & Juliets was it, massive place too?? That was a real great club/disco back in the 80's....

No, a bit before that, in the 70's ..and a bit lower level...think it was a labour club.
Worked on a few social clubs in Sheffield around that time.

 

[shanky887614]

Like any product it has its plus points.....unlike FP, it does not compel or allow gases to be sucked through it like a straw.....still class as enhanced fire cable, outlasting the 30 minute 200 deg reg, by hours not minutes......can handle more current than conductor twice its size......has always been class as LSF.....after 40 years of installation, still passes a full 500v insulation test.
Would say pyro still has a place in installations.

I have only been on one job where they installed new pyro and that was for the fire alarms at the national grid

 

[tazz]

Very common to use pyro, especially in chemical plants, oil and gas storage, London underground.
Again its down to risk, a small office building has no criteria...so fp not going to be an issue. Plant production may need to keep power as long as possible for foam, or water control. London underground, for staged ventilation and extraction, so the need here would be to use pyro to enable power for hours not minutes.