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It was in the USA so no T&E, five circuits = fifteen cables?
Discuss In your country, do you use pipe to run wire through very much? in the Electrical Forum area at ElectriciansForums.net
It was in the USA so no T&E, five circuits = fifteen cables?
I’ll have to say guys and girls that their is no cables in them conduits. We pull all single stranded wire. The big pipes probably have bigger wire in them for feeders. I’ve seen 100 # 14 control wires in some of the bigger conduits. I’ve wired a lot of European equipment and a lot of times they will bring there own cables with them from across the pond and if that’s the case we use tray cable. We can’t mix analog with digital inputs and outputs in the same conduit and power feeders in there own conduit and communication cat-5 cables in there own conduit. We do not like pulling European cables in conduit because the outside diameter of the cable makes us have to run at least 3 inch conduit. Yes most of that conduit looks awesome but I’m a perfectionist on conduit and I seen some conduits that the gap between Some of them is not consistent. I’ve worked for Germans, Italy, Finland engineers, etc who all use cables. In the US on a job that big mostly we have to go by the prints who dictates what we do. On big jobs we have people that just run conduit and nothing else, people who mount all the pull cans and panels. It’s so much different over here.potentially , unless they could share one oversized cpc ... or use the conduit as a cpc but I’m not sure if that is allowed over there ...
they do have Romex cable which is very similar to our lsf twin & earth cable
I’ll have to say guys and girls that their is no cables in them conduits. We pull all single stranded wire. The big pipes probably have bigger wire in them for feeders. I’ve seen 100 # 14 control wires in some of the bigger conduits. I’ve wired a lot of European equipment and a lot of times they will bring there own cables with them from across the pond and if that’s the case we use tray cable. We can’t mix analog with digital inputs and outputs in the same conduit and power feeders in there own conduit and communication cat-5 cables in there own conduit. We do not like pulling European cables in conduit because the outside diameter of the cable makes us have to run at least 3 inch conduit. Yes most of that conduit looks awesome but I’m a perfectionist on conduit and I seen some conduits that the gap between Some of them is not consistent. I’ve worked for Germans, Italy, Finland engineers, etc who all use cables. In the US on a job that big mostly we have to go by the prints who dictates what we do. On big jobs we have people that just run conduit and nothing else, people who mount all the pull cans and panels. It’s so much different over here.
No @ Dustydazzler we generally don’t pull romex in pipe and romex is mostly used in domestic applicationsin the u.k we generally pull single cables (wires) in conduit pipes , you do get some people pull in Romex style cable in conduit but that generally more in houses.
europans do pull in round cable in their conduit but that’s more flexi plastic type conduit tubing I think...I have seen Europea conduit that doesn’t even have bends / elbows
No @ Dustydazzler we generally don’t pull romex in pipe and romex is mostly used in domestic applications
In European Domestic installations it is single cables that are normally pulled in Flexible conduit, round cable as you have called it is generally double insulated and just clipped in place, although this is allowed but frowned upon.
The conduits are often much larger than what we have available here, and motorised cable pullers are common there. Don't forget their 1" conduit has a larger ID than our 1" conduit. And we certainly don't have 8" conduit here, it's hard enough finding suppliers for 32mm conduit.Cant help note the lack of pull-in boxes on some of those installations, but as said some excellent work.
Yes, 6 - 3" conduit were for the 800A, 3ph, 480 volt service, 4 - 500 MCM (almost 1,000 mils dia) plus 4/0 (21mm) ground (earth) in each. Other conduits went elsewhere. It ran under a walkway & a driveway, which were used by garbage trucks & busses. Tried to talk them into only using the rebar under, & 15' of each side of roadway...nope. And it was schedule 80 PVC too.That is some serious duct work! Still, I am surprised that the plan was to encase the lot in concrete, true it will make it tough but seems very "permanent" there.
Over here we would use SWA cable for that sort of job, probably in a runs of "twinwall" plastic duct that can be buried in soil (with sand around it, if stony soil) but in some cases just SWA direct in ground.
But 800A is a lot of current, probably that would need a few parallel runs of cable to get capacity at a sane size of cable to wrangle!
Ah, makes sense now!It ran under a walkway & a driveway, which were used by garbage trucks & busses.
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