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27 Years of the Digest ... founded August 21, 1981

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Volume 28 : Issue 69 : "text" Format

Messages in this Issue:
  Re: Technical Demo turns political 2/26/1909 
  Re: To Bury or Not to Bury 

====== 27 years of TELECOM Digest -- Founded August 21, 1981 ====== Telecom and VOIP (Voice over Internet Protocol) Digest for the Internet. All contents here are copyrighted by Patrick Townson and the individual writers/correspondents. Articles may be used in other journals or newsgroups, provided the writer's name and the Digest are included in the fair use quote. By using -any name or email address- included herein for -any- reason other than responding to an article herein, you agree to pay a hundred dollars to the recipients of the email. =========================== Addresses herein are not to be added to any mailing list, nor to be sold or given away without explicit written consent. Chain letters, viruses, porn, spam, and miscellaneous junk are definitely unwelcome. We must fight spam for the same reason we fight crime: not because we are naive enough to believe that we will ever stamp it out, but because we do not want the kind of world that results when no one stands against crime. Geoffrey Welsh =========================== See the bottom of this issue for subscription and archive details and the name of our lawyer, and other stuff of interest. ---------------------------------------------------------------------- Date: Mon, 09 Mar 2009 04:07:19 GMT From: "Gene S. Berkowitz" <> To: Subject: Re: Technical Demo turns political 2/26/1909 Message-ID: <> In article <gp0mrp$fvk$>, says... > There are also big cities with huge amounts of undocumented > infrastructure under the streets, where the excavation has to be done by > hand and the cable laid a foot at the time to prevent disturbing other > services. > --scott Thank goodness that those cities should soon have a steady supply of bankers and stock brokers, who, with patient training, can be taught which end of the shovel to hold. --Gene ------------------------------ Date: Mon, 09 Mar 2009 12:35:59 -0400 From: Will Roberts <> To: Subject: Re: To Bury or Not to Bury Message-ID: <> In Telecom Digest, <> wrote: >Date: Sat, 7 Mar 2009 18:45:49 -0800 (PST) >From: >To: >Subject: Re: To Bury or Not to Bury > >As to burying power lines, obviously individual lines to houses and >lines to a block of houses can be buried. But is there a limit to the >amount of voltage on a line that can economically be placed >underground? I thought at one point higher voltages don't work so >well underground. > >I'll note that while in the city phone lines are buried, in the >suburbs they're on poles. Several of the major transmission lines feeding the City of Boston have been placed underground in the last few years: "As part of its commitment to serve customers well, NSTAR has commenced construction of three new, underground 345-kilovolt (345-kV) transmission lines. The purpose of the new lines is to reinforce the Greater Boston Area, including surrounding communities, with additional electric power to meet both near term and longer term customer needs for reliable electric service." See also: And there is a "PowerPoint" presentation which explains the economics and why the utility decided to construct a new 18-mile underground 345-kv transmission line rather than augment existing lines or construct a new overhead line: (Sorry about the very long URLs.) Regards, Will ------------------------------ TELECOM Digest is an electronic journal devoted mostly to telecom- munications topics. It is circulated anywhere there is email, in addition to Usenet, where it appears as the moderated newsgroup 'comp.dcom.telecom'. TELECOM Digest is a not-for-profit, mostly non-commercial educational service offered to the Internet by Patrick Townson. All the contents of the Digest are compilation-copyrighted. You may reprint articles in some other media on an occasional basis, but please attribute my work and that of the original author. The Telecom Digest is currently being moderated by Bill Horne while Pat Townson recovers from a stroke. Contact information: Bill Horne Telecom Digest 43 Deerfield Road Sharon MA 02067-2301 781-784-7287 bill at horne dot net Subscribe: telecom Unsubscribe: telecom This Digest is the oldest continuing e-journal about telecomm- unications on the Internet, having been founded in August, 1981 and published continuously since then. Our archives are available for your review/research. We believe we are the oldest e-zine/mailing list on the internet in any category! URL information: Anonymous FTP: (or use our mirror site: RSS Syndication of TELECOM Digest: For syndication examples see Copyright (C) 2008 TELECOM Digest. All rights reserved. Our attorney is Bill Levant, of Blue Bell, PA. ************************ --------------------------------------------------------------- Finally, the Digest is funded by gifts from generous readers such as yourself who provide funding in amounts deemed appropriate. Your help is important and appreciated. A suggested donation of fifty dollars per year per reader is considered appropriate. See our address above. Please make at least a single donation to cover the cost of processing your name to the mailing list. All opinions expressed herein are deemed to be those of the author. Any organizations listed are for identification purposes only and messages should not be considered any official expression by the organization. End of The Telecom digest (2 messages) ******************************

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