NEPOOL OPERATING PROCEDURE NO. 3

	TRANSMISSION MAINTENANCE SCHEDULING FOR FACILITIES OPERATING AT 115 KV AND ABOVE 

APPROVED:		August 21, 1998 by the NEPOOL Regional Market Operations Committee and the NEPOOL Regional Transmission Operations Committee to be implemented for the Second Effective Date for Market Implementation 

REFERENCES: NPCC Transmission Facilities List (NPCC C–13 Appendix D)
  	   NPCC Maintenance Criteria for Bulk Power System Protection (A-04)
  	 	NEPOOL Operating Procedure No. 1 – Central Dispatch Operating Responsibility and Authority, ISO New England, the Satellites and Participants (OP 1)
	  Common System Operating Instructions for Hydro-Quebec and New England Power Pool, +- 450 KV DC Lines 	
	   NEPOOL Market Rules and Procedures

SATELLITE INSTRUCTIONS:

CONVEX:		 	 Operating Instruction 6401 – Protective Switching and Tagging Rules
MAINE:	 		 Maine Operating Procedure No. 3
NEW HAMPSHIRE:	 PSNH Switching and Tagging Rules
REMVEC II:	 		 REMVEC II Operating Procedure No. 3

Table of Contents

I.	INTRODUCTION	3
A.	Background	3
B.	Authority	3
C.	Purpose and Scope of Procedure	3
II.	DEFINITIONS	4
III.	LONG TERM OUTAGE PLANS	4
A.	Preparation/Update of Long Term Plan	4
B.	Scope of Long-term Outage Plan	4
C.	Participant Responsibility	5
D.	ISO Responsibilities	5
E.	Publication of Long-term Transmission Maintenance Plans	5
IV.	SHORT TERM OUTAGE SCHEDULING	5
A.	Routing of Applications	6
B.	Minimum Advance Notice Time - ISO Response Time	7
C.	Review and Approval Process	9
D.	Notifications	11
E.	Re-submittal	11
V.	EMERGENCY OUTAGES	12
A.	Types of Emergency Outages	12
B.	Submission of Requests	12
C.	Response to Emergency	12
VI.	OUTAGE WORK REPORTS	12
A.	Satellite Transmission Work Report	12
B.	ISO Transmission Work Report	13
C.	Review of Scheduled Work	13
VII.	NPCC Trip TESTing	13

APPENDIX A - NEPOOL Delegated 115 kV Facilities

APPENDIX B - Facilities That May Affect HQ Transfers 

APPENDIX C - NEPOOL Standard 345 kV Transmission Line Patrol & Inspection Program 

I.	INTRODUCTION

A.	Background

The Restated NEPOOL Agreement (RNA) requires that ‘transmission facilities owned or operated by Participants be withdrawn from operation for maintenance and repair only in accordance with maintenance schedules reported to and published by the System Operator.’

Transmission maintenance must be coordinated to ensure that reliability is maintained at levels prescribed by NEPOOL Operating Procedure 19 (OP 19), ‘Transmission Operations.’  Operating problems due to maintenance outages must be thoroughly studied.  Transmission and generator maintenance must be coordinated to avoid unnecessary reductions in reliability.

B.	Authority

The ISO has the responsibility of receiving, evaluating, approving or disapproving outage applications for all non-radial transmission facilities rated 115 kV and above.

The ISO assigns to the Satellites the function of disapproving any transmission outage application submitted by a Participant, if the outage has an unacceptable adverse impact upon Satellite operations and/or causes violations of NEPOOL Operating Procedures.  NEPOOL Operating Procedure 1 (OP 1) - Operating Responsibilities and Authority of ISO-NE, Satellites and Participants’ assigns to the Satellites the dispatching functions for all radial 115 kV transmission facilities and all transmission facilities rated below 115 kV, if assigned that responsibility by its Participants.

C.	Purpose and Scope of Procedure

The purpose of this procedure is to achieve the following:

•	facilitate the long-term planning of maintenance outages of NEPOOL transmission facilities
•	establish a short-term outage scheduling process that does not jeopardize the reliability of the transmission system
•	provide guidelines for responding to emergency outages

The procedure establishes criteria and guides for receiving, evaluating, approving, and disapproving all work on non‑radial transmission facilities rated 115 KV and above.  It identifies those radial 115 KV facilities assigned to the Satellites, as well as a number of other 115 KV facilities that, due to the radial like duty performed, are delegated by the ISO to the Satellites (Appendix 3-A).  

The procedure references special protection systems for which outage approval is required. In addition, the procedure identifies facilities that affect HQ transfers in (Appendix 3-B).  In Appendix 3-C (formerly CRS 3), the procedure describes the NEPOOL standard patrol and inspection program for 345 kV lines.

II.	DEFINITIONS

The following definitions are used in this procedure:

•	Long-term maintenance outage plans are rolling projections of transmission outages for future periods.  The plans are established quarterly.  They are prepared primarily for informational purposes.  Details are provided in Section III of this procedure.

•	Short-term maintenance outage schedules are specific schedules for upcoming outages.  They are subject to formal application and approval processes, as described in Section IV of this procedure. 

•	An Emergency Outage is any outage that fails to satisfy the lead times necessary to fully study the implications of the outage on bulk power system operation as required for the short-term maintenance schedule.

III.	LONG TERM OUTAGE PLANS

This section describes the process for establishing and maintaining long-term outage plans.

A.	Preparation/Update of Long Term Plan

The ISO will maintain a long term Transmission Overhaul and Maintenance Schedule on a rolling basis, which looks out at least twelve months.  An updated schedule will be issued once a quarter on January 15, April 15, July 15, and October 15, respectively.  The schedule will be updated every quarter to incorporate the following information:

•	newly submitted or revised requests for transmission outages
•	adjustments to previously submitted requests made by the ISO (working with the participants) for system reliability 

B.	Scope of Long-term Outage Plan

The schedule will include planned outages of all transmission lines and associated equipment operating at 115 kV and above.   It also will include all inter-Area ties of any voltage.  Outage of any associated equipment must be reported even though the line itself may remain in service.

C.	
Participant Responsibility

Each Participant, or their designee, owning the facilities described in the previous paragraph will submit a proposed or updated plan for transmission maintenance to the ISO by January 1, April 1, July 1, and October 1 each year for the upcoming quarterly revision of the schedule.  The plan will include the name of the facility, the expected duration of the outage, whether the outage will be daily or continuous, and the range of dates within which the outage is planned.

Submission of long-term outage planning requests does not eliminate the requirement for Participants to submit detailed applications for the short-term outage schedule, as described in Section IV of this procedure.

D.	ISO Responsibilities

1.	Date Stamp Request

The ISO will assign each maintenance request a date-stamp on receipt.  The date stamp will be used, if needed, to prioritize outage requests. If the participant requests a change in the date of the outage for the long term plan, the ISO will assign a new date stamp to the outage.

2.	Conduct Reliability Checks

The ISO staff will check each requested outage for feasibility in the requested time period, given load projections, the NEPOOL Generator Maintenance Schedule, and previously scheduled transmission outages.  If the ISO staff determines that there is a conflict, they will work with the Participant to identify an alternate time period for the requested outage. 

E.	Publication of Long-term Transmission Maintenance Plans

The ISO will publish the list of long-term planned transmission outages on January 15, April 15, July 15, and October 15 each year.  Publication of the list will be in accordance with the NEPOOL Information Policy (formerly CRS 45.)  Outages affecting radial transmission to a generating unit will be excluded from the published long-term schedule.

IV.	SHORT TERM OUTAGE SCHEDULING

This section describes the scheduling of short term maintenance outages.

A.	
Routing of Applications 

The Participant or Company wishing to do work on facilities covered by this procedure will submit a completed application form to the appropriate Satellite.  This section describes the subsequent routing of the application for different types of outages.

1.	Facilities under the Jurisdiction of the Satellite

Appendix A lists facilities under the jurisdiction of the Satellite.  The coordination of maintenance plans for those facilities is a Satellite function.  Applications are acted upon by the Satellites and need not be forwarded to the ISO.

2.	Facilities not under the Jurisdiction of the Satellite

The Satellite will review applications for work on transmission facilities that are not under the Satellite’s jurisdiction but may affect the Satellite.  Unless the Satellite disapproves the application, the Satellite will forward the application to the ISO.

This provision includes the special protection systems which are listed in the ISO Transmission Operating Guides.  The ISO must coordinate maintenance on those facilities to ensure that one Satellite does not adversely impact another Satellite.

3.	Intersatellite and Inter-Area Facilities

Because of the special communication requirements that apply when applications involve intersatellite and inter-Area facilities, the Satellite and ISO will coordinate these applications as follows:

•	Intersatellite facilities.  The Satellite will forward applications to the adjacent Satellite and to the ISO for approval or disapproval.

•	Inter-Area facilities - NYPP and NBEPC.  The Satellite will forward applications to the appropriate adjacent system's dispatch agency and to the ISO.  The ISO will forward applications to the appropriate NPCC Control Area for approval or disapproval.

•	Inter-Area facilities – Hydro-Quebec (HQ).  The Satellite will forward applications to the ISO.  The ISO will perform all coordination with HQ.  Applications will be forwarded to HQ for approval or disapproval.

4.	Applications Initiated outside New England

Applications initiated by systems outside New England for work on inter-Area facilities will be forwarded by the adjacent NPCC Control Area to the ISO for approval or disapproval.  The ISO will notify the appropriate Satellite(s).

5.	Facilities on the "NPCC Transmission Facilities List”

In addition to inter-Area facilities, there are other facilities in each NPCC Area that, if taken out-of-service, affect adjacent Areas.  These facilities are listed in the document entitled, ‘NPCC Transmission Facilities List (NPCC OI-13)’. The ISO will forward applications received from the Satellites, involving New England facilities, to the appropriate NPCC Control Area for approval or disapproval.  Applications received by the ISO from adjacent NPCC Control Areas, involving other NPCC Area facilities, will be reported to the appropriate Satellite(s).

B.	Minimum Advance Notice Time - ISO Response Time

Outages of transmission facilities may require extensive study and coordination by the ISO and the Satellites to ensure operations are within prescribed reliability criteria.  Participants must coordinate equipment and manpower needed to do the work.  Often this cannot be completed until approval of an outage has been granted.

To provide adequate time for this analysis and coordination, application advance notice times and the ISO response times have been established.  More complex outages, particularly those involving more than one Satellite and/or systems outside New England, may require longer advance notice times and should be submitted as soon as a Participant has finalized application details.  Outage applications must be acted upon in a timely manner by the ISO to provide Participants with adequate lead times.

1.	Facilities Not Affecting HQ Transfers

The following timeframes apply to maintenance scheduling of all transmission facilities, including those listed in Appendix 3-B, if the outage being requested does not affect the amount of power which may be transferred between HQ and NEPOOL:

a)	Applications will normally be submitted to the ISO at least forty (40) hours prior to the time when work is to begin.

b)	The ISO will make every effort to approve/disapprove applications within twenty (20) hours after the application has been received.

c)	Consistent with items (a) and (b) above, the ISO will make every effort to approve/disapprove applications at least twenty (20) hours prior to the time work is to begin.

The ISO has the authority to waive these advance notice requirements as needed.

2.	
Facilities Affecting HQ Transfers

Weekly power deliveries from HQ to NEPOOL are scheduled on the basis of a contract week, which begins each Monday and extends through the following Sunday.  Schedules for outages anticipated to occur during the contract week, must be finalized on the Friday, ten (10) days prior to the contract week, if the outage will affect the amount of power which can be transferred between HQ and NEPOOL. The facilities that may affect HQ/NEPOOL transfers are listed in Appendix 3-B.

a)	Normal Minimum Times.  To comply with the requirement stated above, the following are to be considered the minimum times required to properly process applications for such outages:

(1)	Applications will be submitted to the ISO before 1200 hours on Thursday, eleven (11) days in advance of the beginning of the contract week.

(2)	The ISO will notify the applicant of approval or disapproval no later than 1600 hours on Friday, ten (10) days preceding the beginning of the contract week.

b)	Exception for Outages that do not Interfere with Existing Schedules.  The ISO may make exception to the above requirements if the ISO determines that the outage will not interfere with the existing schedule for pre-scheduled energy delivery and other classes of transactions scheduled on a weekly basis.

c)	Requests for outages of Appendix 3-B facilities that affect the HQ/NEPOOL transfer may be approved on the third working day prior to the outage.  The following are the minimum time requirements:

(1)	Outage applications will be submitted to the ISO before 1600 hours on the fourth working day prior to the outage.

(2)	The ISO notifies the applicant of approval or disapproval not later than 1600 hours on the third working day prior to the outage.

d)	Outages of Ancillary Equipment that do not Affect Tie Capability.  Outages and testing of communication links, relays, terminal controls, metering, telemetering, and other similar equipment which do not affect the tie capability will be scheduled no later than one (1) day in advance.

3.	Notification Times During Heavy Inter-Area Transfers

When NPCC Areas are placing a heavy dependence on inter-Area power transfers, or at other times when abnormal operating conditions are expected, NPCC may require that the advance notice time for applications for outages of NPCC Facilities Affecting Neighboring Areas be temporarily increased.  If NPCC issues such a requirement, the ISO will inform the Satellites as early as possible of the necessary changes in notification times.

C.	Review and Approval Process

1.	Satellite Review and Action

Upon receipt of applications for work on facilities NOT listed in Appendix 3-A, the Satellite will perform the following:

a)	Review and disapprove those that have an unacceptable adverse impact upon Satellite operations.

b)	If not disapproved, notify adjacent Satellites and/or systems outside of New England (New York and NBEPC only) that may be affected by the requested work.

c)	Forward application to the ISO along with the following information:

(1)	Facility (official name and nomenclature).

(2)	Reason for application (work to be done).

(3)	Emergency restoration time in hours.

(4)	Time and date switching is scheduled to begin.

(5)	Time and date the facility is scheduled to be restored to normal operation.

(6)	Satellites and/or systems outside of New England to whom notifications have been given.

(7)	Other information pertinent to the application that may affect the ISO decision.

(8)	A recommendation, if appropriate, that the ISO approve the application based on Satellite analysis that Satellite operations are not adversely affected, and that ISO policy and procedures are not violated.

NOTE:  Applications submitted by adjacent NPCC Control Areas must also                  be accompanied by information listed in items a through g above.

2.	ISO Review and Reliability Study

Upon receipt of applications for work on transmission facilities, the ISO will:

a)	Assign the application an identification number.

b)	Forward applications involving inter-Area or "NPCC Transmission Facilities List" (NPCC OI-13) to the appropriate NPCC Control Area for approval or disapproval.

c)	Review notifications given by Satellites and inform, as required, other Satellites or adjacent NPCC Control Areas, of the requested work.

d)	Conduct studies in sufficient detail to:

(1)	Identify the more severe probable first contingencies (there may be several). 

(2)	Identify voltage constraints and thermally limiting elements, expected flows on limiting elements and ratings [normal, long time emergency (LTE), short time emergency (STE), drastic action limit (DAL),] of limiting elements.  Determine if any pre-defined stability constraints must be followed.

(3)	Document system generation patterns and transmission configurations expected during the time work is scheduled, i.e., units and transmission facilities out of service, units required to be in service, expected

(4)	Interchange schedules, flows across pre-determined interfaces and/or flows on major inter‑Area tie lines.

(5)	Determine action required prior to beginning work and after work has begun to ensure compliance with OP 19.

(6)	Determine bulk power supply area protection generation requirements (units and energy schedule).

(7)	Determine "locked in" generation.  Include units that must be left off‑line, and on‑line units that must be dispatched at reduced loads.

e)	In the event that there is a conflict between transmission outage requests, give priority to outages in the order of the date stamp in the long term plan.

f)	With respect to routine maintenance, in the event that a generator outage conflicts with a requested transmission outage, the generator outage will normally have priority except in the 7 days immediately preceding the start of the transmission outage in which case the outages will be prioritized according to the time at which the outage request is received.  The ISO may adjust this priority due to reliability concerns.

g)	Obtain approval or disapproval from adjacent NPCC Control Area, if applicable.

h)	Approve or disapprove the application.

D.	Notifications

When the review and reliability study has been completed, the ISO will communicate its conclusions to the appropriate Satellites and/or adjacent NPCC Control Areas.  The ISO will notify those Satellites and adjacent NPCC Control Areas that received preliminary notification of the requested work, even if that notification was from an agency other than the ISO.

1.	Notification in case of Approval

When giving an approval notification, the ISO will discuss the conclusions of its reliability study in sufficient detail to ensure that all affected systems recognize the impact of the approved work.  The discussions should cover at least those items listed in section IV.C.2.d .

2.	Notification in case of Disapproval

When giving a disapproval notification, the ISO must clearly state the reasons for disapproval.  Those reasons must be specific and relate to items listed in section IV.C.2.d.  Specific violations of the ISO Operating Procedures and/or Market Rules and Procedures must be identified.

Once an application is disapproved, that application is considered completed.  To accomplish the work, a new application must be submitted as described in Section IV.E.

3.	Notification in case of Cancellation

An application for work on a New England facility that has been forwarded to the ISO may be subsequently cancelled by a Satellite or an adjacent NPCC Control Area.

The party initiating such action must determine and communicate to other affected parties the specific reasons for the cancellation. 

Once cancellation has been made, the application is considered completed.  The ISO will notify the appropriate Satellite(s) and adjacent NPCC Control Area(s) of the application's status change. To accomplish the work, a new application must be submitted as described in Section IV.E.

E.	Re-submittal

To reschedule work that has been disapproved or cancelled, a new application with a new application number and a new review and reliability study must be processed as though no previous application had been submitted.  However, where practicable, the ISO will waive the forty (40) hour advance notice requirement.

This resubmittal procedure must be followed, even though the work is postponed due to inclement weather.  The one exception to this is when a "Rain Date" has been supplied on the original application form.  In the event the "Rain Date" is selected for rescheduling the work, the existing application will be used and all necessary review and study will be processed for this work to be scheduled on the "Rain Date".

V.	EMERGENCY OUTAGES

A.	Types of Emergency Outages

An Emergency Outage is any outage that fails to satisfy the lead times necessary to fully study the implications of the outage on bulk power system operation as identified in Section IV .B. above.

There are two types of emergency outages:

1.		The obvious failure of a piece of transmission equipment that comes out of service on its own or requires immediate operator intervention to remove it from service.

2.	The discovery of a problem that needs to be repaired as soon as crews, equipment, and/or corrective dispatch actions can be put in place to allow the work to be performed.

B.	Submission of Requests

Participants should submit requests for emergency outages of transmission facilities immediately to the Satellite.  If the request is for a facility NOT listed in Appendix 3-A, the Satellite should immediately forward the request to the ISO. 

C.	Response to Emergency

If time exists while crews, equipment, and/or corrective dispatch action arrangements are being made, the Satellite will provide the ISO with all pertinent information to allow for study of the outage and prioritization with other dispatch requirements.

In either event, the flow of information regarding the Emergency Outage will follow the outlines shown on Attachments 1A through 1I.  The timing requirements and various approval steps do not apply to most Emergency outages.

VI.	OUTAGE WORK REPORTS

A.	Satellite Transmission Work Report

Daily by 1500 hours, each Satellite will forward to the ISO and, if appropriate, to the adjacent Satellite(s) a report that includes all equipment listed in Appendix 3-A that is scheduled to be worked on during the following day.  (Friday's report will include equipment scheduled to be worked on during Saturday, Sunday and Monday.  Work scheduled on holidays will be reported on the last regular weekday before the holiday).  The report will include scheduled times when work is to begin and end.

Following the afternoon report, other reports from the Satellite to the ISO and, if appropriate, to the adjacent Satellite(s) will include any additional work that is scheduled for the following day and/or scheduled work during the following day that is cancelled or postponed.

B.	ISO Transmission Work Report

Daily by 1630 hours, the ISO will forward to each Satellite a report that includes all equipment NOT listed in Appendix A that is scheduled to be worked on during the following day.  (Friday's report will include equipment scheduled to be worked on during Saturday, Sunday and Monday.  Work scheduled on holidays will be reported on the last regular weekday before the holiday).  The report will include scheduled times when work is to begin and end.  Following the afternoon report, other reports from the ISO will include any additional work that is scheduled for the following day and/or scheduled work during the following day that is cancelled or postponed.

C.	Review of Scheduled Work

Once work has been approved and Satellite and/or the ISO reports have been completed, both the ISO and the Satellites will operate according to the published schedules.  Any changes for any reason must be communicated by the party initiating the change.  All affected parties must be notified of the change in work schedule.

During the time period between 0001‑0800 hours, the ISO and the Satellites will routinely discuss the day's work schedule to ensure that all parties are up to date on equipment to be worked on and switching schedules.

The ISO must be informed immediately when equipment is taken out of service and/or restored to service.

VII.	NPCC Trip TESTing

All trip testing of transmission breakers done to meet the requirements of NPCC Document A04 ‘Maintenance Criteria for Bulk power System Protection’ for facilities at 69kV and above must be applied for, studied and approved by the ISO.  This process and associated lead times must be followed when applying for the following types of trip testing:

Type of Trip Testing	Study Method	
Simultaneous tripping of one or more breakers which open a single line terminal	Assume that the tripped breakers remain open or will not reclose.	
Equipment outages in preparation for or subsequent to trip testing	Assume that the outaged equipment remains open.	
Breakers associated with special protection systems as listed in the ISO Transmission Operating Guides	Assume that the SPS either fails to receive an open indication when the breaker is actually open, or receives an open indication before the breaker opens, whichever is worse.	
Breakers associated with inter-Area ties	Assume that the opened equipment remains open or will not reclose.	

Exception to the Application Process

An exception to the advance notice time requirements, but not the study and approval requirements will be made for the trip testing of single breakers, at all voltages, that do not open a transmission line terminal.  Satellites will obtain ISO approval before trip testing the breakers for which this exception applies.  Approval should be requested on the day of the test.  Upon receipt of a request for trip test approval, the ISO Coordinator will determine if first contingency coverage is available and approve or disapprove the request as soon as possible.  A formal application will not be prepared. However, the ISO Coordinator will enter the name of the equipment and the time of the trip test in the Daily Outage Log.

ISO approval is not required for trip testing of breakers associated with Appendix 3-A facilities.

ISO Delegated 115 KV Facilities

1.	All 115 KV breakers and disconnect switches that do not interrupt a transmission path.

2.	All 115 KV relays, reclosing, and associated equipment, excluding special protection systems, and 115 KV relays on inter-satellite facilities.

3.	All 115 KV radial lines as listed below:

	MAINE SATELLITE RADIAL LINES

	BANGOR HYDRO

 64		Graham - Chester
 66		Graham - Rebel Hill - Harrington - Washington
 67		Rebel Hill - Ellsworth
247		Orrington - IMC Chemical
248		Orrington - Graham
249		Orrington - Graham

	CMP

63A		Williams
63B		Madison Paper
66A		Gorbell
69A		Bath
83B		Lakewood
83C		Scott Hinkley
85		Detroit - Dexter - Guilford
86A		Belfast
86B		Meadow Road
89A		Jay
163A		Pratt & Whitney
167A		Prides Corner
200A		AEI Livermore	
206&206A	Highland - Park St - Dragon Cement
214		Kimball Road - Harrison - Saco Valley
215		Wyman Hydro - Bigelow
215A		Stratton Energy 
250A		Sanford
250B		Branch Brook
250C		Biddeford Industrial Park

NEW HAMPSHIRE SATELLITE RADIAL LINES

B-112		Beebe River - White Lake
D-142		Whitefield - Lost Nation
I-158		Scobie - Huse Road
L-176		Webster - Laconia
P-134		Hudson - Long Hill
PN2-A		Schiller - Newington
PN2-B		Schiller - Newington
S-136		Whitefield - Berlin
T-13		Schiller - Resistance
W-179		Berlin - Lost Nation
Y-138		White Lake - Saco
60		Littleton - St. Johnsbury

	CONVEX SATELLITE RADIAL LINES

1000		Montville - Bean Hill
1044*		Montague - Amherst
1060		Plumtree - Triangle
1100		Barbour Hill - Enfield
1113		Montague - Fairmont
1134*		Amherst - Fairmont
1165		Plumtree - Triangle
1200		Barbour Hill - Windsor Locks
1210		Card Street - Willimantic
1220		Card Street - Willimantic
1235		Montville - Uncasville
1250		Montville - Uncasville
1270		Plumtree - Middle River
1300		Enfield - Windsor Locks
1310		Manchester - South Windsor
1337		Middle River - Triangle
1355		At Hanover St only
1413		Silver Lake - Doreen
1500		Montville - Williams
1505		Tunnel - Tracy
1544		W. Springfield - Clinton
1555		Rocky River - Bulls Bridge
1575		At Baldwin St only
1583		Derby - Ansonia
1594		Derby - Ansonia
1605		Montville - Williams
1606		Barbour Hill - Rockville
1614		Silver Lake - Doreen
1635		South Windsor - Barbour Hill
1650		Devon - Devon Railroad
1670		Reservoir Road Junction - Black Rock
1675		Bean Hill - Tunnel
1690		At Hanover St only
1753		Glenbrook - Cedar Heights
1755		W. Springfield - Clinton
1763		Manchester - Barbour Hill
1792		Glenbrook - Cedar Heights
1819		Midway - Florence Junction
1820		Southington - Black Rock
1830		Southington - Black Rock
1840		Black Rock - General Electric
1860		United Technologies
1990		At Baldwin St only

* The ISO must be notified if the Tie at Amherst is to be closed

REMVEC II SATELLITE RADIAL LINES

	VELCO

K-15		Ascutney - Windsor
K-25		Essex - Burlington (East Avenue)
K-29		St. Johnsbury - Littleton (PSNH 60)
K-33		Williston - Queen City
K-39		St. Johnsbury - Irasburg

	EUA

A-94		Auburn Street - Parkview
B-23		W. Farnum - Nasonville
C-3		Auburn Street - No. Abington - Norwell
E-1		Bridgewater - Middleboro Junction - Easton
L-14		Bell Rock - Canonicus - Dexter - Bates St - Tiverton
M-1		Middleboro - East Bridgewater

M-13		Somerset - Canonicus - Bates St - Dexter - Tiverton
S-1		Matfield Street - Stoughton
S-9		Auburn Street - Water Street - Norwell - Scituate
Y-2		Somerset - Hathaway Street
Z-1		Somerset - Hathaway Street

	COMMONWEALTH ELECTRIC

109		High Hill - Fisher Road - Cross Road
111		High Hill - Cross Road
112		Acushnet - Pine Street - Cannon Street
114		Acushnet - Pine Street - Cannon Street
115		Bourne - Barnstable
116		Brook Street - West Pond
117		Brook Street - West Pond
117		Kingston - Duxbury
118		Barnstable - Harwich Tap
119		Barnstable - Harwich Tap
122		Bourne - Barnstable
123		Barnstable - Hyannis
124		Barnstable - Hyannis
129		SEMASS Tap
150		N. Cambridge - Putnam
151		N. Cambridge - Putnam
191		Kingston - Marshfield - Duxbury

	NEES

A153	Tewksbury – Meadowbrook – N.Chelmsford 
A161	Sandy Pond – Littleton – Meadowbrook – N. Chelmsford
I-187	Drumrock - Sockanosset - Pontiac
J-162	Tewksbury - Perry St - L’Energia
J-188	Drumrock - Sockanosset
L-164	Tewksbury - S. Broadway - W. Andover - N. Dracut
M-165	Millbury 2 - Vernon Hill - Wheelabrator
M-191	North River - East Beverly
N-166	Northboro Road - Hudson
N-192	North River - East Beverly
S-197	Bear Swamp - Deerfield 4
U-173	Carpenter Hill - Snow Street
W-123	Carpenter Hill - Snow Street

	NEES 230 KV

N-266	Comerford Station - Comerford 230 KV Yard

	BOSTON EDISON

127-536	N. Cambridge - Putnam
127-537	N. Cambridge - Putnam
132-538	K Street - Deer Island	
146-502	W. Walpole - Walpole
250-516	K Street - Chatham
250-516	Mystic - Chatham
250-517	K Street - Chatham
250-517	Mystic - Chatham
292-522	Baker Street - Newton Highlands
292-523	Baker Street - Newton Highlands
398-537	Holbrook - East Holbrook
416-526	Sudbury - Maynard
416-527	Sudbury - Maynard
478-508	Holbrook - Edgar
478-509	Holbrook - Edgar
478-502	Holbrook - Edgar
 X + Y
483-524	K Street - Dewar Street
483-525	K Street - Dewar Street
496-528	Baker Street - Hyde Park
496-529	Baker Street - Hyde Park
517-532	Edgar - Field Street - North Quincy
517-533	Edgar - Field Street - North Quincy
576-534	K Street - MBTA
576-535	K Street - MBTA

Facilities which may affect the transfer capability between NEPOOL and Hydro‑Quebec Phase I:

451		Comerford‑Des Cantons HVDC
452		Comerford‑Des Cantons HVDC
G207		Comerford Terminal ‑ Comerford Substation 230 KV
H208 		Comerford Terminal ‑ Comerford Substation 230 KV

A201		Comerford ‑ Tewksbury 230KV
B202		Comerford ‑ Dunbarton Tap ‑ Tewksbury 230 KV
D204		Comerford ‑ Littleton Tap ‑ Moore 230 KV

381 		Vermont Yankee ‑ Northfield 345 KV
379		Vermont Yankee ‑ Scobie       345 KV
354		Northfield ‑ Ludlow         	 345 KV
326		Scobie ‑ Sandy Pond		 345 KV
394		Seabrook-Tewksbury		 345 KV

X178		U199 Tap ‑ Whitefield ‑ Beebe 115 KV
	A111/EII5	Webster - Beebe		     115 KV
     	K26		Granite ‑ Wilder              115 KV
	W149  		Wilder ‑ Bellows Falls        115 KV
	K23/K30	Middlebury ‑ West Rutland     115 KV
	K24/K26	Essex - Granite		     115 KV

Tewksbury		230/115 KV	Transformer #1,#2,#3 or #4
	Granite		230/115 KV     Transformer
Littleton		230/115 KV	Transformer
Merrimack		230/115 KV	Transformer
Tewksbury	    	A201-B202	Breaker
Tewksbury		01-1 - 02-2	Breaker

Facilities which may affect the transfer capability between NEPOOL and Hydro‑Quebec Phase II:

451		Sandy Pond - Comerford - Des Cantons HVDC
452		Sandy Pond - Comerford - Des Cantons HVDC
460		Sandy Pond - Comerford - Des Cantons Ground
314		Sandy Pond - Millbury
337		Sandy Pond - Tewksbury
343		Sandy Pond - Millbury
3512		Sandy Pond DC Terminal - Sandy Pond 345
3521		Sandy Pond DC Terminal - Sandy Pond 345
K137W	Sandy Pond - Ayer - Pratts Junction	
L138W	Sandy Pond - Pratts Junction
Sandy Pond 	345/115 KV	Transformer 1X, 2X

NEPOOL STANDARD 345-KV TRANSMISSION LINE
PATROL & INSPECTION PROGRAM

This Appendix is being re-drafted by NEPOOL Transmission ROW experts and is unavailable at this time

NEPOOL RIGHT‑OF‑WAY VEGETATION MANAGEMENT STANDARD

This Appendix is being re-drafted by NEPOOL Transmission Forestry experts and is unavailable at this time