It is certainly used industrially but aluminum service entrance cable rated for 100A and 200A service are used for residential as well. As far as I know, it is not used for interior residential wiring, though. [EDIT: except for sub panels]The reference was "commercial and industrial installations", which to me implies factory floor wiring and distribution?
https://www.helukabel.com/publication/us/technical_articles/aluminum-vs-copper-8-11-15.pdfWhat is your definition of "Industrially"?
I have worked "Industrially" most of my career and never seen it used or come across it in my personal experience.
The exception is service entry.
Helukabel? A brochure from a family-owned German company - I bet they have a top notch regulatory group that understands regulations in every region. It is unlikely a German company would assume German regulations are the best/safest in the world and should be good for everyone. I've never seen that happen before.
Thank you. I wasn't sure the two dozen other times that was mentioned were true. Could you label the "many" buildings that have aluminum service feeds?Many institutional, commercial, industrial service feeds are AL. Neutral supported, service panels, MCCs.
Too bad, It's really cool. A map with every building in the United States. You can see the dark areas of each city and the pure white areas of lakes and streams. Then you can zoom in, and in, and in, into see each individual building - including my house and my shed. I can move across the country and see the dairy farm where I picked rocks and baled hay. The chicken coop and hog barn are still there. Unfortunately, my neighbor's rabbit hutch is not included.That site is paywalled.
AL wiring beyond utility feed-lines is defacto banned on our site. Engineers generally specified copper wring for all critical infrastructure projects.I don't/didn't work in power distribution, just mainly industrial shop floor environments and have never come across it in the many decades .
Off topic.Thank you. I wasn't sure the two dozen other times that was mentioned were true. Could you label the "many" buildings that have aluminum service feeds?
In this part of Michigan MOST of the service drops to houses are aluminum. Also, the 3-phase drops to businesses are aluminum. They consist of one bare aluminum cable with some steel strength members and either 2 or 3 PE insulated conductors, either solid or stranded, wrapped around the bare neutral conductor. So evidently the utility does not consider that heating will be a problem. And today copper costs at least 15X what aluminum costs, so that makes some sense.Off topic.
There are zip files here:
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by Jeff Child
by Jeff Child