External Lighting Part2

[Robojin]

Well had a chance to look at this in daylight, perhaps not pyro after all?

Outer sleeve white PVC?, solid copper sleeve (currently used for CPC) inner 2 core both black and appear to 1.5mm copper single strand

CPC is connected to metal surface mount switch box via large cooper glands

Not touched the cooper glands to see if inner cores are separated with mineral, is this pyro? I'd just assumed it was due to copper sleeve

Special on your question on the IR test, with my KT64 I get >200M between Line conductor and Line return, and CPC for the two circuits terminating at the wall switch (simplest way of bypassing timer switch), the actual IR numbers differ on each circuit I'm assuming this is down to the differing lengths on the run to the coach lights

 

[bassman]

Sounds like it may be plastic coated pyro MICC.Has it any pots on the ends where the pyro is sealed should have a gland that is free or as you say clamped to the box with copper clamps.

photo would have been good.

the conductors are usually rough, and not smooth like T&E.any black sleeve on the conductors.

 

[Robojin]

Sounds like it may be plastic coated pyro MICC.Has it any pots on the ends where the pyro is sealed should have a gland that is free or as you say clamped to the box with copper clamps.photo would have been good.

the conductors are usually rough, and not smooth like T&E.any black sleeve on the conductors.

I think the black sleeves may have been rough

Got a picture of the glands if that helps

http://i645.photobucket.com/albums/uu178/robojin/IMG_1790.jpg

 

[Andy™]

definatly pyro

 

[Robojin]

definatly pyro

So what do you think, is it worth cutting into to put a luminaire under the porch, I'd have to re-route part of it, and presumably a jnct box (or luminaire) with copper glands, there appears to be space above the porch but don't want to disturb it as it's been recently decorated

I presume that pyro was the best solution at the time, but seems a bit OTT, but I guess it was the copper sleeve giving extra protection that they went for

If I have to remove any suggestions to use in it's place, SWA doesn't seem a practical solution, the circuit will be covered by an RCD of course.

cheers

 

[Andy™]

So what do you think, is it worth cutting into to put a luminaire under the porch, I'd have to re-route part of it, and presumably a jnct box (or luminaire) with copper glands, there appears to be space above the porch but don't want to disturb it as it's been recently decoratedI presume that pyro was the best solution at the time, but seems a bit OTT, but I guess it was the copper sleeve giving extra protection that they went for

If I have to remove any suggestions to use in it's place, SWA doesn't seem a practical solution, the circuit will be covered by an RCD of course.

cheers

pyro was and still is the best option. its just expensive and harder to work with.

maybe get some H07 RNF (or similar) cable instead of pyro

 

[Robojin]

pyro was and still is the best option. its just expensive and harder to work with. maybe get some H07 RNF (or similar) cable instead of pyro

Thanks andy, I'll investigate H07, seems all the topics on MICC have "it's a pita to work with"

Cheers Guiness Drink

 

[SPECIAL LOCATION]

definatly pyro

oh Yes Yes Yes...

in the words of that dog thing!!

 

[SPECIAL LOCATION]

Thanks andy, I'll investigate H07, seems all the topics on MICC have "it's a pita to work with"Cheers Guiness Drink

MICC is an extremely robust cable & very heat resistant..

(from your IR tests looks like this cable is still sound?)

personally I haven't used it for a fair few years...

But back with one of my previous employers used it quite frequently...

personally I didn't find it that much more of a hassle than say working with SWA?

as with everything the trick is having the right tools for the job!

not trying to bodge it with side cutters!!

 

[Andy™]

personally I didn't find it that much more of a hassle than say working with SWA?

as with everything the trick is having the right tools for the job!

i dont think its much more hassle than SWA either. you just need more tools to be able to terminate it properly

 

[Robojin]

i dont think its much more hassle than SWA either. you just need more tools to be able to terminate it properly

Thanks for all the advice guys,

Just looking for the tools the jobs getting expensive, with the frequency that you all seem to have used MICC, I doesn't look like I'll make any money on this job and will be donkey's years before I recover the outlay

I've got a course next week so will think about plan B on this job

 

[Andy™]

unless you use pyro often, its not worth gettin the tools.

 

[batty]

Pyro was always used in schools and hospitals for fire alarms and other applications for its heat surviving properties but with the FP200 it is now not used so much. I have never had to use it since being self employed but when I trained the people I worked for did work in schools and in them days it was always specified.

Batty