conduit and pyro

[mrloy99]

Mi is protected, it cannot be none-earthed.
I saw a prog on telly recently where a guy used haystacks to build walls ...(grand designs I think) he used pyro ~(micc) and mistakely thought pyro cannot overload, pyro is the worst kind you can use. Pyro will get red-hot. Pyro, micc is used for protection in the event of fire, not before.

In effect pyro will still work under extreme temps, that's why it is used.

The guy whom wired his house through pyro has made a mistake and wasted tons of money. As many times he has read the rules wrong

A little knowledge is dangerous and expensive, no one pointed out the fact in the program. Mi or pyro is after the fact, not before.



He may as well wired in fp200, more or less the same and much cheaper. He mistakenly thinks pyro will protect his property, no it won't. In actual fact it is worst than pvc. Granted if nothing goes wrong his wiring should be ok for many years, but no better than pvc assumming protected correctly

Will the fuse not operate to prevent over heating/overloading? They often specify pyro for explosive atmospheres.
I've seen pvc insulated cables hot enough to not be able to hold.