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| Re: LIRR needs to improve ROW maintenance; new dieseld (497785) | |||
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Re: LIRR needs to improve ROW maintenance; new dieseld |
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Posted by AEM-7AC #901 on Tue Oct 2 20:38:23 2007, in response to Re: LIRR needs to improve ROW maintenance; new dieseld, posted by Chris R16/R2730 on Tue Oct 2 20:17:53 2007. Catenary uses AC because the entire concept for it was developed by George Westinghouse, an AC enthusiast.Dude, you do realize that there are plenty of DC catenary systems in use around the world. Metra and the South Shore in Chicago use 1500V DC cat, while plenty of new built light rail systems use 750 V DC and older systems like SEPTA and MBTA use 600 V DC cat. New Jersey Transit's earliest capital projects was the conversion of the Morris and Essex Lines from 3000 V DC to 25kV AC. On a global perspective, overhead 1500 V DC is commonly used in Australia, Japan (even in the Tokyo Metro), South Korea, France, Netherlands, and Spain, while 3000 V DC is used in Italy, Belgium, Poland, Slovakia, Slovenia, Russia, and Hungary. |
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