Show us your Conduit!

[Engineer54]

Some of those Ductor testers were almost works of art in there wooden cases, ...One that comes to mind was the ''Claire'' instrument... Those bits of kit, seemed to last for years and years, unlike some of today's stuff!! lol!!!

 

[Knobhead]

Some of those Ductor testers were almost works of art in there wooden cases, ...One that comes to mind was the ''Claire'' instrument... Those bits of kit, seemed to last for years and years, unlike some of today's stuff!! lol!!!

Where I served my time we had two dating from the 1950’s. Used daily for M&Q statutory testing, the mate kept them polished. As you say “works of art”. They were still in use in the 90’s when I left the company.

 

[Steve1412]

Nah mate hospital saddles areView attachment 4980 wider to the wall and thiner to the conduit end.

Aint seen them in years...peeps never believe you when you say there is a difference between distance and hospital......25mm hospital sadddles where also used to knock out unruly elephants!!!!!!lololol

 

[sparkiegaz]

looks ok to me ,,seen worse feller,,

 

[somersetsparks]

Company I work for still has a ductor although I believe there is no longer a requirement to use one.
I still use the conduit as cpc most of the time unless they spec otherwise, I always use lockrings behind knockouts etc to give a better surface area put a light smear of silicone grease on threads and scratch paint of any boxes behind the bush/lockring.

I do find it odd that people are happy to rely on a piece of squashed 1mm but unhappy with 80 sq mm of galv steel!
Obviously there are circumstances where i would run an earth but not to many.

In answer to davelerave - Most submains I work on are still in 4 core, usually with seperate cpc.

I would probably have used an inspection elbow on that corner, but as the OP says its what you get told to do by the gaffer and what is in the stores. (which in these tight times doesn't seem to be a great deal!)

 

[somersetsparks]

oh.. one other thing, the prob with distance saddles is they mean if you have any besa boxes they space them off the wall a little , and you have to be very careful when fixing them as there is no adjustment.

I always use them if I am dropping down from trunking into accessories as they space it nicely for knockouts removing the need for sets.

 

[High Tower]

MrEnigma, I wonder how many of our compatriates on the board would recognise a “Ductor”?

High current, milliohmmeter, used for measuring low resistance, see were not all as thick as you are smug

 

[Engineer54]

They can also come in micro ohm sets, used for measuring contact resistance of say bus bar joints and larger breaker contacts etc, etc... Some of those models can deliver in excess of a 100A test current...

 

[JD6400]

Also know as a flash tester isn't it ?

 

[Engineer54]

Flash tester?? .....No!!

 

[High Tower]

Are you thinking of pat testing ???

 

[somersetsparks]

Flash testing is used to test enclosures. They test an enclosures ability to handle an arc flash, I know that they were testing panels at 2.5kv on the last petrochem job i was on.

 

[JD6400]

I was involved on a large hotel build a few years ago and one Friday evening got asked to check why the power was going up and down erratically on one part of the build .
To cut along story short i found that one of the 1200 kva ( i think it was this size but it was a few years ago and we do not tend to deal with this size normally ) incomers fed into a floor standing panel the size of a large mini bus , had got a loose bus bar which had all but melted away .
The switch gear supplier would not take responsibility for it so our old timer Foreman asked for the flash test results to prove continuity at the factory and they backed down .
From memory he said the test involved firing 10000 volts with high current through it to bring out any loose joints but nobody does it any more because i quote " it tends to blow the s""t out of what you wanted to test in the first place "
I would love to know more about this and if it was indeed true , as of yet i have not come across anything like again .
Many thanks Dave

 

[somersetsparks]

Like I say the last petrochem job I went on, all enclosures were flash tested to 2.5kv on site as part of commissioning.

 

[JD6400]

Thanks Somersetsparks but the test i referred to was to check continuity and not if would contain a arc flash over , unless i have got the wrong end of the stick and you are saying the test is for your instance and not mine ?
Thanks for the reply anyway but could you clarify please .