Frozen four inch buried conduit

[LushMonkey]

@benji I can see how that came across as me being short with ya, considering the message the preceded it. That was not how I intended it. I have never heard that the term duct used before but I haven't worked outside of Canada. The only time I have used 4" EMT was for security system in a RCMP office, and for fiber optic cable.

 

[wozz]

From my extensive research on this (watching ice pilots and gold rush) i think you can thaw anything out with a herman nelson. :cheesy:

 

[dan86]

They have bell ends

ACtual lol!

 

[Engineer54]

No its nothing like a duct, its four inch PVC conduit. They have bell ends and you use PVC glue to close the ends. It pretty much melts the pipes together. You use this when you need to run pipes underground. But hey can't say I've ever seen an engineer running pipe

Hmmm, the project i'm working on now has probably miles of underground ducting for both LV and MV distribution cables. Most are multi tier runs with 3m X 2m deep underground concrete manholes for pulling and change of direction. All plastic ducting is glued together during construction, but that's not duct sealing, duct sealing refers the open ends!! ALL sections of ducting (or if you like conduit) will have its ends sealed against water penetration and fauna ...for obvious reasons. Empty ducts will be sealed by just a purpose made, close fitting internal end cap. Cable filled duct, will be sealed by a suitable made for purpose compound system...

By the way, if your pipe system has ''Bell Ends'' for ease of pulling from any angle, it would be deemed as a cable duct, ...even ''Stateside''!! Oh and there was me thinking that Canada now uses ''Metric'' sized cable, rather than the totally outdated and isolated AWG and it's derivatives....
Are you still distributing 208V up there in coldest Canada, thought it was all 240V now, in both the States and Canada??

 

[LushMonkey]

Congrats have never heard the term ducting other than tin bashers. And your thinking is partially right. Code books are all in metric but that's the only place it is used. 240 is only used in houses everywhere else is three phase

 

[LushMonkey]

Or if a building was built before 1950 it may be using delta three phase

 

[shanky887614]

Hmmm, the project i'm working on now has probably miles of underground ducting for both LV and MV distribution cables. Most are multi tier runs with 3m X 2m deep underground concrete manholes for pulling and change of direction. All plastic ducting is glued together during construction, but that's not duct sealing, duct sealing refers the open ends!! ALL sections of ducting (or if you like conduit) will have its ends sealed against water penetration and fauna ...for obvious reasons. Empty ducts will be sealed by just a purpose made, close fitting internal end cap. Cable filled duct, will be sealed by a suitable made for purpose compound system...

By the way, if your pipe system has ''Bell Ends'' for ease of pulling from any angle, it would be deemed as a cable duct, ...even ''Stateside''!! Oh and there was me thinking that Canada now uses ''Metric'' sized cable, rather than the totally outdated and isolated AWG and it's derivatives....
Are you still distributing 208V up there in coldest Canada, thought it was all 240V now, in both the States and Canada??

Ive only been doing electrics for a few years but I must have crawled through miles of ducts. (took awhile to stop the nerves why crawling next to shaking steam pipes) (on hands and knees/crouched over)

 

[Engineer54]

Ive only been doing electrics for a few years but I must have crawled through miles of ducts. (took awhile to stop the nerves why crawling next to shaking steam pipes) (on hands and knees/crouched over)

What your describing here, are more like ''Service Tunnels'' rather than ducts!! lol!!

 

[Engineer54]

Congrats have never heard the term ducting other than tin bashers. And your thinking is partially right. Code books are all in metric but that's the only place it is used. 240 is only used in houses everywhere else is three phase

Are you saying that all your National electrical Code books and guides all state and relate to metric cables with all the appropriate installation data regarding CCC, Volt Drop etc etc, but nobody uses metric cable?? ...lol!!

Never heard anything so ridiculous in all my working life, you may as well throw your code books straight in the bin, if it can't get one of the most important starting point fundamentals right!!

240V is the L1/L2 voltage of single phase 240/120V 3 wire system. Are you saying that you never use single phase supplies derived from 3 phase supplies then?? To be honest i didn't know that the old 208V 3 Phase systems were still in use, they were normally only derived from a 600V or earlier 575V bus/line. Weren't you, (Canada) and the States in the process of standardising the multitude of different voltage systems?? I was under the impression that 600V is and was going to stay the standard 3 phase voltage in Canada??

 

[LushMonkey]

I don't write the books, they were probably written by some dumbass engineer. And a I said we us 240/120 in residential. Any commercial is still running off of 120/208, Or 347/600, and there is even some light industrial using 270/480. So I don't know what they were going to try and do, I do know how things are done in the field. But being the typical engineer you are, you're gonna tell me how everything I've worked on in my own country is different than how it is. Straighten out buds.

 

[Guest112]

I'm still laughing at the thought of conduits with a "Bell-end" hahaha