There are 3 metre lengths here:
https://www.cef.co.uk/catalogue/products/1360368-20mm-pre-galvanised-steel-conduit-3m-length
19mm/20mm Electrical trunking in grey
- Thread starter Possom
- Start date
https://www.cef.co.uk/catalogue/products/1360368-20mm-pre-galvanised-steel-conduit-3m-length
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You may struggle, because it might be a syndrome unique to one person
Kind Regards, John
No problem with it being cut - only opposed to it being sold in an incorrect length.
Does your PVC tube come in 3.75m lengths?
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I'm rather intrigued and astonished by this seemingly bizarre discussion - what is the basis for there being a single 'correct' length in which to manufacture and supply this product?
If you were saying that it was 'traditional', 'conventional' or 'common' to manufacture and supply it in one particular length, that would be fair enough - but to say that to manufacture and supply it in anything other than one particular length is 'incorrect' and 'ridiculous' seem to be more than a little bizarre!
Kind Regards, John
I am surprised to learn that (apparently) not all PVC conduit comes with "one end expanded to fit over the next length avoiding the need for find grey couplers.", as it does here - in 4 M and 6 m lengths!
http://www.unistrut.com.au/DB/PDF1/4718 PVC.pdf
Also, here Grey and Orange are used for "electrical" conduit.
White conduit is used only for "communications", for which it is "required". (Of course, they can all be painted whatever colour you like.)
Of course not. PVC conduit is 3m. I specifically stated steel, and indeed during Apprenticeships you are taught the correct length for steel conduit.
As I have said, that appears to be a totally bizarre concept!
What is the 'correct' length for a piece of timber, copper pipe, curtain track, reel of cable/rope etc. etc. etc. etc. ?!
Kind Regards, John
...and if you get a satisfactory answer - why was it decided, 3.75m?
Only since metrication, or was it 12 feet before which does not exactly convert to 3.75m?
Or was it 12' 3.6378" or is it now actually 3.6576m. and no one has noticed?
- why was it decided, 3.75m?Only since metrication, or was it 12 feet before which does not exactly convert to 3.75m?
Or was it 12' 3.6378" or is it now actually 3.6576m. and no one has noticed?
What temperature does the conduit have to be when the measurement is made ?
Quite so!...and if you get a satisfactory answer
Kind Regards, John
In the days of conduit, it was sold in a "Bundle" of 8 lengths as Risteard says, 3.75metres
A bundle was 100 foot or now 30 metres
It seemed to be an industry standard I assume to make it easier to work out how much needed on a project, Im quessing the longer length was also chosen to cut down on wastage as youd get more sections from a length and not so many short offcuts.
Firms i worked for it was an important point when buying a van that you could get a "bundle" or at least a length inside uncut
A bundle was 100 foot or now 30 metres
It seemed to be an industry standard I assume to make it easier to work out how much needed on a project, Im quessing the longer length was also chosen to cut down on wastage as youd get more sections from a length and not so many short offcuts.
Firms i worked for it was an important point when buying a van that you could get a "bundle" or at least a length inside uncut
As has been said, there is nothing 'round' about it in Imperial measurements. A 'bundle' of 8 x 3.75m lengths would, indeed, be 30m in total (as would a bundle of 10 x 3m lengths), but that equates to 98.5 feet, not 100 feet.
You say that a bundle (of 8 lengths) "was 100 feet" - are you say that each length was then about 3.807 metres long?
Kind Regards, John
I dont remember but id quess 12.5 feet, back in the day you fitted about 8 bundles a day and all your measurements were done in your head, so round numbers helped, similar i suppose to how Brick sizes originated to help builders.
I had a 3.8m bespoke pipe rack made for this purpose.
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