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| From | John Levine <johnl@taugh.com> |
|---|---|
| Newsgroups | nyc.transit |
| Subject | Re: huh? "12,800 feet of new aluminum third-rail"?? |
| Date | 2025-10-07 01:24 +0000 |
| Organization | Taughannock Networks |
| Message-ID | <10c1q3g$tre$1@gal.iecc.com> (permalink) |
| References | <Pine.NEB.4.64.2510062000350.5657@panix2.panix.com> |
According to danny burstein <dannyb@panix.com>: >. Improvements so far include the replacement of 128 bridge spans that >connect tracks, column to column; the addition of 12,800 feet of new >aluminum third-rail; and the addition of 6,500 feet of signal cables, >25,000 feet of new running rail, and over 40,000 feet of new communication >cables. > ====== >rest: >https://www.amny.com/nyc-transit/park-avenue-viaduct-metro-north-10062025/ > > huh? aluminium third-rail ?? Is that legit? Thanks Sure. Here's a company that makes them, aluminum with a steel cap. https://www.rail-fastener.com/the-third-rail.html Aluminum conducts much better than steel so I'd expect the power losses to be lower, and in new construction you could put the power feeds further apart. It says "The conductivity of aluminum alloy is 3-4 times that of low carbon steel." -- Regards, John Levine, johnl@taugh.com, Primary Perpetrator of "The Internet for Dummies", Please consider the environment before reading this e-mail. https://jl.ly
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huh? "12,800 feet of new aluminum third-rail"?? danny burstein <dannyb@panix.com> - 2025-10-06 20:02 +0000
Re: huh? "12,800 feet of new aluminum third-rail"?? John Levine <johnl@taugh.com> - 2025-10-07 01:24 +0000
Re: huh? "12,800 feet of new aluminum third-rail"?? tls@panix.com (Thor Lancelot Simon) - 2025-10-07 22:14 +0000
Re: huh? "12,800 feet of new aluminum third-rail"?? danny burstein <dannyb@panix.com> - 2025-10-07 22:34 +0000
Re: huh? "12,800 feet of new aluminum third-rail"?? Ruben Safir <mrbrklyn@panix.com> - 2025-10-07 23:15 +0000
Re: huh? "12,800 feet of new aluminum third-rail"?? Ruben Safir <mrbrklyn@panix.com> - 2025-10-07 23:20 +0000
Re: huh? "12,800 feet of new aluminum third-rail"?? Ruben Safir <mrbrklyn@panix.com> - 2025-10-07 23:13 +0000
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