EEI - Advantages of Undergrounding Utilities White Paper 05-

EEI - Advantages of Undergrounding Utilities White Paper 05-

ID:39395468

大小:2.34 MB

页数:9页

时间:2019-07-02

EEI - Advantages of Undergrounding Utilities White Paper 05-_第1页
EEI - Advantages of Undergrounding Utilities White Paper 05-_第2页
EEI - Advantages of Undergrounding Utilities White Paper 05-_第3页
EEI - Advantages of Undergrounding Utilities White Paper 05-_第4页
EEI - Advantages of Undergrounding Utilities White Paper 05-_第5页
资源描述:

《EEI - Advantages of Undergrounding Utilities White Paper 05-》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库

1、ExecutiveSummaryMorethan3millionmilesofelectricalcablesarestrungoverheadacrossthecountry.Addtothatatleast180milliontelephoneandcableTVlines,andit’snowonderhurricanes,tornadoes,firesandicestormsarewreakinghavoconAmerica'selectricalsystemseachyear,causingutilityoutagesthatlastdays,weeksandlong

2、er.Poweroutagesoverextendedperiodspresentmajorhealthandsafetyconcernsandeconomiclosses.Intheaftermathofthesestorms,thereisinvariablyanoutcryfromthepublic,thegovernmentandthemediatoplaceoverheadutilitiesunderground.Concernsaboutthereliabilityofoverheadlines,increasesintheirmaintenanceandopera

3、tingcosts,andissuesofpublicsafetyandquality-of-lifeareleadingmoreandmoreutilitiesandmunicipalitiestotherealizationthatconvertingoverheaddistributionlinestoundergroundisthebestwaytoprovidehigh-qualityservicetotheircustomers.AccordingtoareportbytheEdisonElectricInstitute,“almost70percentofthen

4、ation’sdistributionsystemhasbeenbuiltwithoverheadpowerlines.”Overthepast15yearsorso,however,“approximatelyhalfthecapitalexpendituresbyU.S.investor-ownedutilitiesfornewtransmissionanddistributionwireshavebeenforundergroundwires.”Makingsuchaconversionisrarelyjustifiedsolelyonthebasisofcosts.Fo

5、rutilitycompanies,undergroundingprovidespotentialbenefitsthroughreducedoperationsandmaintenance(O&M)costs,reducedtreetrimmingcosts,lessstormdamage,reducedlossofday-to-dayelectricitysales,andreducedlossesofelectricitysaleswhencustomerslosepowerafterstorms.Creativefundingoptionsareoftenavailab

6、letomakethegoalofundergroundingareality.Forsomeconversions,theevolutionofhorizontaldirectionaldrillingandtheabilitytophysicallylocateundergroundutilitiesusingvacuumhavebeenkeytothesuccessofmanyoftheseprojects.TheSituationTheheadlinesareeverywhere.InSeptember2008,heavywindsinOhiocausedanoutag

7、ewhichdeprivedapproximately2.6millioncustomersofpower.InDecember2008,icestormsinthenortheastcutpowertomillionsofcustomers.OverheadpowerlineshavecauseddevastatingfiresinSanDiegoCounty.Inadditiontotheutility’srestorationcosts,socialcostsofoutagesincl

当前文档最多预览五页,下载文档查看全文

此文档下载收益归作者所有

当前文档最多预览五页,下载文档查看全文
温馨提示:
1. 部分包含数学公式或PPT动画的文件,查看预览时可能会显示错乱或异常,文件下载后无此问题,请放心下载。
2. 本文档由用户上传,版权归属用户,天天文库负责整理代发布。如果您对本文档版权有争议请及时联系客服。
3. 下载前请仔细阅读文档内容,确认文档内容符合您的需求后进行下载,若出现内容与标题不符可向本站投诉处理。
4. 下载文档时可能由于网络波动等原因无法下载或下载错误,付费完成后未能成功下载的用户请联系客服处理。