ࡱ> M bjbj== )ZWWl8888 8 c========bbbbbbb$c eb=====b6@==b6@6@6@=R==b6@=b6@ 6@II== BF78p=RIIb0 cIof=tofI6@Points: 1) Power transmission from the Cape to the Island may be unreliable and may be subject to long or short term interruptions because: a) Cape Transmission infrastructure is unreliable due to age and because it is cobbled together b) Transmission to the island originates from a single transmission point on the Cape 2) It is possible that power is being transmitted below the standard voltage and may be being reduced for the following reasons: a) Unreliable or inadequate load carrying capacity on the Cape b) Reduced undersea cable load carrying capacity due to the age of one of the cables and/or injuries to all cable b) Transmission line structure is a patchwork of non-structured line layouts because it was built-as-needed Current evidence supports the conclusion that NSTAR does not have a written plan for partial or complete failure of the transmission system. It would appear that they operate on the principle of solve the problem when it occurs and the solution is to cobble something together on the spur of the moment. The solution to a current shortfall, caused by a blown transformer on the Cape, is to attach two generating trailers to the line at the Tisbury dump. This solution provides some additional capacity to a current shortfall. It is unclear how much generating capacity would be required to alleviate a complete breakdown of power transmission. ============================================================== Possible Consequences of a complete transmission failure, from a DPW perspective:s c) Island transmission line infrastructure may not be able to handle standard loads 3) Much of the Island transmission line infrastructure was replaced after Hurricane Bob in 1991. TownCritical Infrastructure TypesFacilitiesGenerator Y/NGas/ Diesel/ Propane (G/D/P)Storage capacity (Gallons)Max Run Time (Hours)Tested Weekly/Monthly (W/M)Approx. Test Run Time (Hrs)TisburyTown Government BuildingsTown HallTown Hall-AnnexPoliceFireEMSDPWJailSheltersSchoolsCOAsState Government BuildingsPost Office Main Post Office West ChopRoad Maintenance - StateOther Government BuildingsPublic Water SuppliesFood-Grocery storesCronigsStop & ShopFood-Wholesale storesCash & CarryFood-Warehouse FacilitiesIFPFood-Convenience storesCumberland FarmsFuel Gasoline/Diesel SalesTisbury Shell Mobile MartFuel Gasoline/Diesel Storage FacilitiesPacker FuelFuel- Heating Oil Sales&StoragePacker FuelFuel Propane Sales/StorageIsland propanePublic Transportation Ferries Terminals,docks & Staging areasSSAUtilitiesComm CentersElectric-Transmission FacilitiesElectric-Generating FacilitiesElectric- Transmission Lines to Critical FacilitiesPhone-Transmission FacilitiesPhone- Transmission Lines to Critical FacilitiesPhone-Cell TowersCable TV -Transmission FacilitiesCable TV -Production FacilitiesInternet ProvidersWastewater FacilitiesWastewater Control stationsHospitalBanksMV Savings SovereignDrugstoresLeslies Medicine ShoppeDoctors OfficersSpecial Needs FacilitiesPackage Stores : DEyju ^ _ $If  - 7 D L S h $If ($$Ifl ,$(0p5 80$$$$4 la $If $$Ifl ,$(0p5 80$$$$4 la $If d$$Ifl4 ,$(0p5` 80$$$$4 la $If @$$Ifl4 ,$(0p5  80$$$$4 la $If 8$$Ifl4 ,$(0p5  80$$$$4 la $If 4$$Ifl4 ,$(0p5  80$$$$4 la      $If   4$$Ifl4 ,$(0p5  80$$$$4 la        $If   8$$Ifl4 ,$(0p5  80$$$$4 la         $If ! 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