IMPORTANT INFORMATION FOR INFORMATION …

1 INFORMATION &REQUIREMENTSFORELECTRIC SERVICECUSTOMERS ELECTRICIANSARCHITECTS ENGINEERSBUILDERSINSPECTORSINFORMATION & REQUIREMENTS FORELECTRIC SERVICEIMPORTANT INFORMATION FORBUILDERS AND CONTRACTORSNEEDPOWER(New Construction Electric)Includes installing new electric services, upgrading or moving aservice and temporary disconnection of a servicePhone ..888-633-3797 Fax: ..781-441-8721 DIGSAFE ..888-344-7233 GENERALCUSTOMERSERVICER esidential Customers .. 800-592-2000 Business Customers ..800-340-9822 STREETLIGHTREPAIRS ..800-785-4837 ENERGYEFFICIENCYR esidential ..781-441-8720 Business ..781-441-8592 Cape Cod Only ..800-797-6699(Cape Light Compact)CLAIMS- voice mail box.

2 866-678-2792 THEFTOFSERVICE .. 2009 Revised 2009 1 INTRODUCTIONAt NSTAR Electric, we are committed to serving our customerswell, and providing them with safe, reliable electric service is oneof our most IMPORTANT priorities. This handbook, INFORMATION &Requirements for Electric Service, was designed with that priorityin mind, and it contains the requirements within which safeelectric service can be supplied to our you will find answers to many of the questions customers,electricians, architects, engineers, builders, and inspectorsfrequently ask related to electric will also find therehave been a number of policy changes and other updates. Weencourage you to carefully review this new edition of INFORMATION & Requirements for Electric understand that a handbook cannot always take the place ofdiscussing a particular issue or question with someone.

3 That is whythe NSTAR New Customer Connect Tech Center is staffed andready to respond to all of your power needs. Please call 888-NEED-PWR (888-633-3797) Monday through Friday from 7 to 4:30 for a quick response to questions about newconstruction, service upgrades, relocation, house moving or razing,or INFORMATION regarding other NSTAR services. NSTAR also has aweb site, , which includes a host of topics for ourresidential and business customers, as well as builders andcontractors. And because NSTAR regularly reviews this handbook,any updates or changes can be found on our web site for ELECTRICDISTRICTSNSTAR ELECTRICDISTRICTS32 ActonAllstonArlingtonAshlandBedfordBelli nghamBrightonBrooklineBurlingtonCantonCa rlisleChelseaDedhamDorchesterDoverEast BostonFraminghamHollistonHopkintonHyde ParkJamaica PlainLexingtonLincolnMattapanMaynardMedf ieldMedwayMillisMiltonNatickNeedhamNewto nNorfolkRoslindaleRoxburySharonSherbornS omervilleS.

4 BostonStonehamSudburyWalpoleWalthamWater townWaylandWestonWest RoxburyWestwoodWinchesterWoburnMashpeeMa ttapoisettNew BedfordOak BluffsOrleansPembrokePlymouthPlymptonPro vincetownRochesterSandwichScituate(Humar ock)TisburyTr u roWarehamWellfleetWestportWest TisburyYarmouthDowntownBoston NetworkDistrictBack BayBostonCharlestownFenwaySouth EndCambridgeDistrictCambridgeNorth DistrictSouth DistrictAcushnetAquinnahBarnstableBourne BrewsterCarverChathamChilmarkDartmouthDe nnisDuxburyEasthamEdgartownFairhavenFalm outhFreetownHarwichKingstonLakevilleMari onMarshfieldNorth DistrictSouth DistrictCambridge DistrictDowntown Boston Network District CHECKLISTTABLE OF CONTENTSI ntroduction.

5 1 NSTAR Electric Districts ..2 Electric Service Checklist ..4 Contact Us ..11 Safety Requirements ..12 Frequently Asked Questions ..14 Utility Authorization Process ..17 Article 100 General INFORMATION ..18101. Introduction ..18102. Scope ..18103. Uniform Requirements ..18104. Effective Date .. of Rules ..19106. Special Circumstances .. Service ..20108. Rates ..20109. INFORMATION ..21110. Diversion of Electrical Energy ..22111. Cities and Towns Served; City/Town (Inspector of WiresInformation) ..22 Article 200 Application for New or Additional Service ..29201. Where to Apply ..29202. When to Apply ..29203. Availability of Service.

6 Loads ..30 TABLE OFCONTENTS45A CHECKLIST TO GUIDE YOU TO PROMPT ANDEFFICIENT SERVICES ometimes, even the most IMPORTANT pieces of the electric serviceprocess may get overlooked. To help you determine if you vecovered all the bases when it comes to getting your electric serviceenergized, we have created the following checklist of items. Theircorresponding sections in this handbook also appear for moredetailed INFORMATION . Work Order Application completed? (form ) Outside location of meters? (Article 704) Proper meter sockets in place? (Article 715) Cold sequenced meters? (Article 705) Two or more meters? (Article 708) Identification of Meter Sockets form completed?

7 (Article 708) Are multi-sockets properly marked? (Article 708) Does a clear cover plate exist for wired sockets pendinginstallation of a meter? (Article 716) Correct service attachment hardware installed? (Sketch 5) Fees paid? (Article 206 & current fees available with theWork Order Application format ) Obtained wire inspector approval? (Article 207)TABLE OFCONTENTSTABLE OFCONTENTS407. Policy on Connections ..47408. Violations ..48 Overhead Services ..48 409. Lines of Demarcation for Overhead Service ..48410. Overhead Span Distances ..48411. Point of Attachment .. Clearances ..49413. Overhead Secondary Services ..49414. Overhead Primary Service.

8 52 Underground Secondary Services ..54415. Lines of Demarcation ..54416. Size ..54417. Point of Attachment and Minimum Conductor Lengths ..54418. Trench for Underground Service .. Conduits on Private Property ..56420. Conduit Installations - Minimum Specifications .. or Manholes on Private Property ..57422. Underground Developments ..57423. Underground Secondary Service fromNSTAR Overhead Line ..59 Underground Services from UndergroundDistribution System .. Secondary Services from UndergroundDistribution System ..60425. Installation of Underground Service When Construction isRequired on Private Property ..617205. Relocation or Alteration of Service.

9 30206. Customer Cost ..31207. Inspection Certificates ..31208. Temporary Service and Installation Charges ..31209. Disconnecting and Reconnecting Overhead orUnderground Electric Services ..32210. Moving of Buildings or Structures ..32211. Company Liability ..32212. Resale of Energy ..33 Article 300 General Services ..33301. Availability of Service ..33302. Number of Services ..33303. Service Characteristics .. Requirements ..37305. Customer Generation ..37306. Voltage Sensitive Equipment ..40307. Secondary Lightning Arresters ..40308. Short Circuit Currents ..40309. Unbalanced Load ..41 Article 400 Installation of Services Policies,Rights and Permits.

10 41 401. Public Grants and Special Permits ..41402. Private Property Permits and Crossing ..41403. Extension of Lines In The Public Way .. of Private Residential Overhead Construction ..44405. Underground Service Credit .. Customers Install Their Own Electric Service Facilities .4669 TABLE OFCONTENTS8 TABLE OFCONTENTS604. Insulating Transformers (sometimes referred to as isolatingtransformers) ..72605. Power Factor ..73606. Power Factor Correction Capacitors ..74607. Power Supply to Voltage Sensitive Equipment ..74608. Power Quality ..75 Article 700 Meters General Requirements ..75 701. General ..75 702. Meter Tampering ..76703.