B09_Amend_3_App_B_Location_A_to_DD_Data_Sheets_0003.pdf

Loca on A Data Sheet:

NPS incoming MV (12.47KV rated) 3PH Service U lity NSEC (North Star Electric Coopera ve) owned metering equipment:

Photos: 9842, 9850, 9852

Exis ng Equipment: below indicated Electricity usage Revenue Metering Equipment are owned and maintained by NSEC:

a) CTs/ PTs in weatherproof steel enclosure box, NEMA 3R outdoor rated, pad mount with following.

i. Metering Poten al Transformer (PT) – 3 Qty. PT Ra o: Primary … KV/ Secondary

120V AC.

ii. Metering Current Transformer (CT) – 3 Qty. CT Ra o: Primary …. Amps/ Secondary 5 Amps.

iii. Voltage Class: 15KV

iv. MFR by Electromagne c Industries, Square D company.

b) U lity NSEC owned Electric energy revenue meter, mounted to CT/PT metering box, external to the box. Meter info’ as below:

i. Meter – North Star Electric Company, Meter Number 25027. Meter Make Landis Gyr Gridstream RF – digital with display screen.

ii. Meter Type Focus AXR, FORM 9S/8S, CL 20, 120/277V, 4W, 60HZ, TA 2.5, kh 1.8, Y ∆.

c) MV 3PH NSEC main incoming service feeder and outgoing MV 3PH load feeder to NPS.

(Note: This is an assumed interface demarca on point (between U lity NSEC & NPS owner-ship if NPS is High Voltage Service Customer)). Verify demarca on point for ownership and maintenance of equipment and MV feeder line.

d) Note: There is a single phase (1PH), Phase C, MV service incoming feeder tap seen for land power supply. Assumed this feeder and connected load is u lity NSEC customer and not

NPS.

Exis ng Equipment Condi ons:

a) CTs/PTs metering box exterior and interior visual condi ons found sa sfactory. NSEC Electric Revenue meter visual condi ons found ok. Note this equipment are owned by NSEC and not

NPS.

b) Visual indicates proper equipment bonding provided.

c) Visual indicates there is a 10KV Class Elbow Arrestor (8.4KV MCOV) at Phase C breakout.

There are no Elbow Arrestors for NPS MV 3PH load Feeder cables to NPS seen.

d) No waterproof seals to all feeder cable conduits stub-ups entering interior bo om of box.

Requirements:

a) NPS shall coordinate with NSEC and provide waterproof seals to all feeder cable conduits run underground and stub-ups entering and exis ng to interior bo om of Box.

b) Provide elbow arrestors for MV 3PH cable feeder at elbow break out terminals within box.

PHOTO 9842

PHOTO 9852

PHOTO 9850

Loca on B Data Sheet:

Pad mount Oil Switch - Recloser:

Photos: 9857, 9860, 9861, 9863, 9865.

Exis ng Equipment:

U lity Main Service MV (12.47KV rated) 3PH Feeder ON/OFF Recloser (3- single phase switches within oil insulated tank) in weatherproof steel enclosure box, NEMA 3R outdoor rated, pad mount with following.

i. 3 -1PH on/off switches are within oil filled sealed tank installed within enclosure.

Name plate detail not visually seen or info’ available. 3- 1PH Switches are provided with sheet metal barriers as visual seen in photo.

ii. Front of box has individual with individual front door and par oned sheet steel barriers - 3 – 1PH MV service feeder incoming and load feeder outgoing from each 1PH switch cable connec ons as visual seen in photo.

iii. Each 1PH feeder cable termina on independent front compartment has elbow connectors with proper insulated boots as visual seen.

iv. Each 1PH Cable feeder termina on compartment has manual handle for switch opera on with visual indicator for switch posi ons “OPEN” or CLOSED” per NEC required.

v. There are three small cable termina on break out terminal elbows seen without any cable connected. It seems (to be verified) they are for remote/ alarm indica ons for Switch ON/OFF/Trip indica on.

vi. Box Interior components and box properly bonded as seen visual.

vii. Stub -up conduits within switch cable termina on compartment seen not weather ght seal.

viii. No Elbow Arrestors seen at incoming and outgoing load feeders’ break out terminals for each switch terminals.

Exis ng Equipment Condi ons:

a) Equipment Ownership: NPS shall confirm Recloser is owned and operated by NSEC or owned by NPS. This an assumed interface demarca on line for load feeder owner-ship. NPS shall verify contract agreement made in past with NPS.

b) Equipment Age: Recloser is original to MV service feeder installed in 1980 for NPS installed by U lity NSEC.

c) Configura on: Recloser is 3- 1PH individual switches opera on and not grouped 3- PH opera on.

d) Equipment Loca on: Switch is located on steep sloped ground surface with vegeta on without minimum 10’ clear flat ground surface for operator access and safety as per codes required.

Recommenda ons:

a) As Recloser is 40+ years old, per Electrical Standards it is not reliable for opera on as required for power supply con nuity and it is not 3PH group operated manual switch instead it has 3-1PH switches required to be operated individually and therefore to be replaced with new.

b) New MV (15KV rated) 3PH Group operated Recloser/ Circuit Breaker shall be considered to be Gas Insulated (SF6 insula ng Gas) instead oil insulated for compact switch footprint, less/ no maintenance compared to oil insula on and compa ble with greener environment as there is no oil leak and soil contamina on risk. It is unknown that oil has PCB presence.

c) New Recloser shall be provided with manual opera on, indica on for switch posi ons and trip alarms with remote opera on and indica on/ trip alarms as required.

d) Provide elbow Arrestors at 3PH load feeder cables outgoing termina ons.

e) New recloser shall be pad mount in weatherproof, NEMA 3R rated enclosure.

Replace exis ng vault below recloser for underground feeder stub ups to within Switch for cable termina ons.

PHOTO 9857

PHOTO 9861

PHOTO 9860

PHOTO 9863

PHOTO 9855

Loca on C Data Sheet:

MV (12.47KV Service rated) 3-1PH feeder cables Sec on Junc on Box: 3-Way, 200A, 3PH, 25KV rated, Photos: 9866, 9867, 120959

Exis ng Equipment:

MV Cable feeder (in and out) Sec on Junc on Box suitable for sec onalizing long feeder underground cable run segment for isola on, tes ng or repairs, and replace par al segment in weatherproof steel enclosure box, NEMA 3R outdoor rated, pad mount with following:

i. 3-way junc on box, with 3- 1PH feeder cable incoming and 3- 1PH feeder cables outgoing visually seen terminated within j-box.

ii. 1Way - 3- 1PH terminals are spare.

iii. No Elbow Arrestors for 3PH cable feeder is seen.

iv. J-Box interior condi ons looks ok.

v. Bonding equipment, cables, spare terminals seen ok.

vi. Grounding rods and grounding is unknown.

Exis ng Equipment Condi ons:

a) Equipment Ownership: Based on discussions with NPS and NSEC field staff it belongs to NPS. NPS shall verify contract agreement made in past with NPS and confirm.

b) Equipment Age: Sec on J-Box is original to MV service feeder installed in 1980.

c) Equipment Condi ons: J-Box exterior and interior condi ons visual seems ok.

d) Code Compliance: Access front and around equipment clearance around J-Box does not Comply with latest codes and u lity NSEC and OSHA requirements of 10 feet clearance in front of equipment access – J-Box for personnel operator safety.

e) Addi onal observa ons:

i. Feeder Cables bo om entry via exis ng vault does not seem to have any seal plate and without conduit sleeves.

ii. J-Box interior seen dust and not have proper weatherproof seals. dust and moisture within J-box is hazardous (Arc flash – due to PH-PH or PH to Ground short circuits) for reducing creepage distance between minimum PH

- PH and PH - Ground distance required.

Recommenda ons:

a) Sec on J-Box is 40+ years old, per Electrical Standards it is not reliable for opera on as required for power supply con nuity therefore to be replaced with new.

b) New Sec on J-box shall be 3-Way Sec on box, 15KV, 200A rated with elbow breakouts connectors for 3-1PH loop in and out feeder cables termina on with insula ng boots, addi onal 3-1PH elbow breakout terminal connectors shall be provided with insula ng boots for future feeder cable connec ons. J-Box shall be provided with 3-1PH elbow arrestors with insula ng boots.

c) New vault below Sec on J-box shall be provided with side bo om plate with suitable bo om cable entries with 5” conduit sleeves stub-ups required.

d) A er cable installa on and termina ons within J-Box, conduit sleeves shall be sealed with weatherproof compound.

e) J-box exterior around equipment 10’ clearance shall be provided (no vegeta on) or steep path with no overhead above equipment trees.

f) As an op on (based on VM analysis to reduce project cost) this loca on Sec on J-box can be eliminated and if required cable splices waterproof suitable shall be provided to be installed within water.

PHOTO 120959

PHOTO 9866

PHOTO 9867

Loca on D Data Sheet:

MV (12.47KV Service rated) 3-1PH feeder cables Sec on Junc on Box: 3-Way, 200A, 3PH, 25KV rated.

Photos: 9873,9874,9877,123050

Exis ng Equipment:

MV Cable feeder (in and out) including branch feeder Sec on Junc on Box suitable for sec onalizing long feeder underground cable run segment and 1PH (A-Phase) T-branch load feeder segment for isola on, tes ng or repairs, and replace par al segment in weatherproof steel enclosure box, NEMA 3R outdoor rated, pad mount with following:

i. 3-way junc on box, with 3- 1PH feeder cables incoming and 3- 1PH feeder cables outgoing with 1PH (Phase A) tap branch load feeder supply power to Hoist Bay as visually seen terminated within j-box.

ii. PH-B and PH-C spare terminals with J-Box provided with Elbow Arrestors 10KV rated

(8.4KV MCOV).

iii. No Elbow Arrestor for PH -A cable feeder is seen.

iv. J-Box interior condi ons looks ok.

v. Bonding equipment, cables, spare terminals seen ok.

vi. Grounding rods and grounding is unknown.

Exis ng Equipment Condi ons:

a) Equipment Ownership: Based on discussions with NPS and NSEC field staff it belongs to NPS. NPS shall verify contract agreement made in past with NPS and confirm.

b) Equipment Age: Sec on J-Box is original to MV service feeder installed in 1980.

c) Equipment Condi ons: J-Box exterior and interior condi ons visual seems ok.

d) Code Compliance: Access seems ok from front and around equipment for required clearance per NEC, NESC standards, u lity NSEC and OSHA requirements of minimum 10 feet clearance in front of equipment access – J-Box for personnel operator safety.

e) Addi onal observa ons:

i. Feeder Cables bo om entry via exis ng vault does not seem to have any bo om seal plate and without conduit sleeves.

ii. J-Box interior seen dust and not have proper weatherproof seals. dust and moisture within J-box is hazardous (Arc flash – due to PH-PH or PH to Ground short circuits) for reducing creepage distance between minimum PH

- PH and PH - Ground distance required.

Requirements:

a) Sec on J-Box is 40+ years old, per Electrical Standards it is not reliable for opera on as required for power supply con nuity therefore to be replaced with new.

b) New Sec on J-box shall be 4-Way Sec on box, 15KV rated, 200A rated with elbow breakouts cable terminal connectors with insula ng boots for 3-1PH loop in and out feeder cables termina ons and 1PH (A-Phase) load feeder to Hoist Bay T-branch feeder cable termina on with insula ng boot. Addi onal 1-way - 3-1PH Elbow breakout terminal connectors with insula ng boots shall be provided for future feeder cable connec ons. J-Box shall be provided with 3-1PH elbow arrestors with insula ng boots.

c) New vault below Sec on J-box shall be provided with side bo om plate with suitable bo om cable entries with 5” conduit sleeves stub-ups required.

d) A er cable installa on and termina ons within J-Box, conduit sleeves shall be sealed with weatherproof compound.

e) J-box exterior around equipment verify minimum 10’ clearance shall be provided (no vegeta on) or steep path with no overhead above equipment trees.

PHOTO 9873

PHOTO 9874

PHOTO 9877

PHOTO 123050

Loca on E Data Sheet:

MV (12.47KV Service rated) 3-1PH feeder cables Sec on Junc on Box with addi onal 1PH- in & out feeder cable termina on break-out Terminals: 3-Way, 200A, 3PH, 25KV rated.

Photos: 125410, 125251, 9879,9881

Exis ng Equipment:

MV Cable feeder (in and out) including branch feeder Sec on Junc on Box suitable for sec onalizing long feeder underground cable run segment and 1PH (A-Phase) T-branch load feeder segment for isola on, tes ng or repairs, and replace par al segment in weatherproof steel enclosure box, NEMA 3R outdoor rated, pad mount with following:

i. 3-way junc on box, with 3- 1PH feeder cables incoming and 3- 1PH feeder cables outgoing.

ii. Addi onal 1PH (Phase A) tap branch load feeder supply power to Ash River and other island loads as visually seen terminated within J-box.

iii. Addi onal 1PH- in & out feeder Terminals are seen. These are spare as seen.

iv. No Elbow Arrestors for 3PH in & out cable feeders at termina ons seen.

v. J-Box interior condi ons looks ok.

vi. Bonding equipment, cables, spare terminals seen ok.

vii. Grounding rods and grounding is unknown.

Exis ng Equipment Condi ons:

a) Equipment Ownership: Based on discussions with NPS and NSEC field staff it belongs to NPS. NPS shall verify contract agreement made in past with NPS and confirm.

b) Equipment Age: Sec on J-Box is original to MV service feeder installed in 1980.

c) Equipment Condi ons: J-Box exterior and interior condi ons visual seems ok.

d) Code Compliance: Access around J-Box is not clear due to vegeta ons as seen, from front and around equipment as required clearance per NEC, NESC standards, u lity NSEC and OSHA requirements of minimum 10 feet clearance in front of equipment access – J-Box for personnel operator safety.

e) Addi onal observa ons:

i. Feeder Cables bo om entry via exis ng vault does not seem to have any bo om seal plate and without conduit sleeves.

ii. J-Box interior seen dust and not have proper weatherproof seals. dust and moisture within J-box is hazardous (Arc flash – due to PH-PH or PH to Ground short circuits) for reducing creepage distance between minimum PH

- PH and PH - Ground distance required.

Recommenda ons:

a) Sec on J-Box is 40+ years old, per Electrical Standards it is not reliable for opera on as required for power supply con nuity therefore to be replaced with new.

b) New Sec on J-box shall be 4-Way Sec on box, 15KV, 200A rated with elbow cable termina on connectors for 3-1PH loop in and out feeder cables and 1PH (A-Phase) load feeder to Ash River and other island loads -branch termina ons. Elbow connectors shall be provided with insula ng boots. Addi onal 1-way - 3-1PH Elbow breakout terminal connectors with insula ng boots shall be provided for future feeder cable connec ons. J-Box shall be provided with 3-1PH elbow arrestors with insula ng boots.

c) New vault below Sec on J-box shall be provided with side bo om plate with suitable bo om cable entries with 5” conduit sleeves stub-ups required.

d) A er cable installa on and termina ons within J-Box, conduit sleeves shall be sealed with weatherproof compound.

vegeta on) or steep path with no overhead above equipment trees.

PHOTO 125410

PHOTO 125251

PHOTO 9879

PHOTO 9881

Loca on F Data Sheet:

Photos: 9884,9885,9888,130830

Exis ng Equipment:

MV Cable feeder (in and out) Sec on Junc on Box suitable for sec onalizing long feeder underground cable run segment for isola on, tes ng or repairs, and replace par al feeder cable segment in weatherproof steel enclosure box, NEMA 3R outdoor rated, pad mount with following:

i. 3-way junc on box, with 3- 1PH feeder cables incoming and 3- 1PH feeder cables outgoing.

ii. No Elbow Arrestors for 3PH in & out cable feeders at termina ons seen.

iii. Bonding for equipment, cables, and spare terminals seen ok.

iv. Grounding rods and grounding is unknown.

Exis ng Equipment Condi ons:

a) Equipment Ownership: Based on discussions with NPS and NSEC field staff it belongs to NPS. NPS shall verify contract agreement made in past with NPS and confirm.

b) Equipment Age: Sec on J-Box is original to MV service feeder installed in 1980.

c) Equipment Condi ons: J-Box exterior and interior condi ons visual seems ok.

d) Equipment loca on: Code Compliance: Access around J-Box is not clear due to vegeta ons as seen, from front and around equipment as required clearance per NEC, NESC standards, u lity NSEC and OSHA requirements of minimum 10 feet clearance in front of equipment access – J-Box for personnel operator safety. In addi on one side of the J-box is adjacent to steep slope with water below as seen in photo.

e) Addi onal observa ons:

i. 1-way 3-1PH Breakout Terminals within J-Box seen spare. PH-B spare

Terminal seen without insula on boot. It compromises operator safety required.

ii. PH-B Terminals at breakout seen with black carbon due to arc flash over incident. J-box interior cover and top box cover seen with black carbon deposit due to this arc flash incident on PH-B Terminal.

iii. J-Box interior condi ons – due to Arc Flash incident seems black carbon deposit which is conduc ng material and have future hazard for arc flash incident.

iv. Cables runs in conduit are seen exposed on ground and also seen exposed in water.

v. Feeder Cables bo om entry via exis ng vault does not seem to have any bo om seal plate and without conduit sleeves.

vi. J-Box interior seen dust and not have proper weatherproof seals. dust and moisture within J-box is hazardous (Arc flash – due to PH-PH or PH to

Ground short circuits) for reducing creepage distance between minimum PH

- PH and PH - Ground distance required.

Requirements:

a) Sec on J-Box is 40+ years old, per Electrical Standards it is not reliable for opera on as required for power supply con nuity therefore to be replaced with new.

b) New Sec on J-box shall be 3-Way Sec on box, 25KV rated, 200A rated with elbow cable termina on connectors for 3-1PH loop in and out feeder cables. New Sec on J-box shall be 3-Way Sec on J-box, 25KV rated, 200A rated with elbow cable termina on connectors for 3-1PH loop in and out feeder cables with insula ng boots, addi onal f3-1PH break out elbow connectors shall be provided with insula ng boots for future cable connec ons. J-Box shall be provided with 3-1PH elbow arrestors with insula ng boots.

c) New vault below Sec on J-box shall be provided with side bo om plate with suitable bo om cable entries with 5” conduit sleeves stub-ups required.

d) A er cable installa on and termina ons within J-Box, conduit sleeves shall be sealed with weatherproof compound.

e) J-box exterior around equipment verify minimum 10’ clearance shall be provided (no vegeta on) or steep path with no overhead above equipment trees.

f) New J-box shall be located in clear flat loca on and away from water.

g) As an op on (per VM and cost savings measure) this loca on J-Box shall be eliminated with if required water splice, waterproof Type to be installed for within water cable run.

PHOTO 9884

PHOTO 9885

PHOTO 9888

PHOTO 130830

Loca on G Data Sheet:

Photos: 132302,9895,9896,9897

Exis ng Equipment:

MV Cable feeder (in and out) Sec on Junc on Box suitable for sec onalizing long feeder underground cable run segment for isola on, tes ng or repairs, and replace par al feeder cable segment in weatherproof steel enclosure box, NEMA 3R outdoor rated, pad mount with following:

i. 3-way junc on box, with 3- 1PH feeder cables incoming and 3- 1PH feeder cables outgoing.

ii. No Elbow Arrestors for 3PH in & out cable feeders at termina ons seen.

iii. 1 Way – 3 – 1PH breakout terminals spare.

iv. Insula ng boots to breakout terminals are proper and in good condi on.

v. Bonding for equipment, cables, and spare terminals seen ok.

vi. Grounding rods and grounding is unknown.

Exis ng Equipment Condi ons:

a) Equipment Ownership: Based on discussions with NPS and NSEC field staff it belongs to NPS. NPS shall verify contract agreement made in past with NPS and confirm.

b) Equipment Age: Sec on J-Box is original to MV service feeder installed in 1980.

c) Equipment Condi ons: J-Box exterior and interior condi ons visual seems ok.

d) Equipment loca on: Code Compliance: Access around J-Box is not clear due to vegeta ons around and overhead tree branches to top of box as seen, from front and around equipment as required clearance per NEC, NESC standards, u lity NSEC and OSHA requirements of minimum 10 feet clearance in front of equipment access

– J-Box for personnel operator safety.

e) Addi onal observa ons:

i. Cables runs in conduit are seen exposed on ground and also seen exposed in river water.

ii. Feeder Cables bo om entry via exis ng vault does not seem to have any bo om seal plate and without conduit sleeves.

iii. J-Box interior seen dust and not have proper weatherproof seals. dust and moisture within J-box is hazardous (Arc flash – due to PH-PH or PH to Ground short circuits) for reducing creepage distance between minimum PH

- PH and PH - Ground distance required.

Requirements:

a) Sec on J-Box is 40+ years old, per Electrical Standards it is not reliable for opera on as required for power supply con nuity therefore to be replaced with new.

b) New Sec on J-box shall be 4-Way Sec on box, 25KV rated, 200A rated with elbow cable termina on connectors for 3-1PH loop in and out feeder cables and 1PH (A- Phase) load feeder to Ash River and other island loads -branch termina ons with insula ng boots, addi onal for 3-1PH connectors shall be for future cable connec ons. J-Box shall be provided with 3-1PH elbow arrestors with insula ng boots.

c) New vault below Sec on J-box shall be provided with side bo om plate with suitable bo om cable entries with 5” conduit sleeves stub-ups required.

d) A er cable installa on and termina ons within J-Box, conduit sleeves shall be sealed with weatherproof compound.

vegeta on) or with no overhead above equipment tree branches.

PHOTO 13232

PHOTO 9895

PHOTO 9896

PHOTO 9897

Loca on H Data Sheet:

MV (12.47KV Service rated) 3-1PH feeder cables Sec on Junc on Box: 4-Way, 200A, 3PH, 25KV rated.

Photos: 134233, 134606, 9899, 9901, 9902, 9903, 9906.

Exis ng Equipment:

MV Cable feeder (in and out) Sec on Junc on Box suitable for sec onalizing long feeder underground cable run segment for isola on, tes ng or repairs, and replace par al feeder cable segment in weatherproof steel enclosure box, NEMA 3R outdoor rated, pad mount with following:

i. 4-way junc on box, with 3- 1PH feeder cables incoming and 3- 1PH feeder cables outgoing.

ii. 3- 1PH Elbow Arrestors (10 KV rated, 8.4KV MCOV’s) for at 3PH (PH A, PH B, PH C) at break out terminals seen for in & out cable feeders.

iii. 1 Way – 3 – 1PH breakout terminals seen spare.

iv. Insula ng boots to breakout terminals are proper and in good condi on.

v. Bonding for equipment, cables, and spare terminals, and at Elbow Arrestors seen ok.

vi. Grounding rods and grounding is unknown.

vii. Interior to box at all 3PH Terminals arc flashover and black carbon deposits are seen.

Exis ng Equipment Condi ons:

a) Equipment Ownership: Based on discussions with NPS and NSEC field staff it belongs to NPS. NPS shall verify contract agreement made in past with NPS and confirm.

b) Equipment Age: Sec on J-Box is original to MV service feeder installed in 1980.

c) Equipment Condi ons: J-Box exterior condi ons visual seems ok. Box interior found flashover and black carbon deposits seen as indicated above.

d) Equipment loca on: Code Compliance: Access around J-Box is not clear due to vegeta ons around and box is supported by stone walls around with no clear front and around equipment access as required per NEC, NESC standards, u lity NSEC and OSHA requirements of minimum 10 feet clearance in front of equipment access – J- Box for personnel operator safety.

e) Addi onal observa ons:

i. Feeder Cables bo om entry via exis ng vault does not seem to have any bo om seal plate and without conduit sleeves.

ii. J-Box interior seen dust and not have proper weatherproof seals. dust and moisture within J-box is hazardous (Arc flash – due to PH-PH or PH to Ground short circuits) for reducing creepage distance between minimum PH

- PH and PH - Ground distance required.

Requirements:

a) Sec on J-Box is 40+ years old, per Electrical Standards it is not reliable for opera on as required for power supply con nuity therefore to be replaced with new.

b) New Sec on J-box shall be 3 -Way Sec on box, 25KV rated, 200A rated with elbow cable termina on connectors for 3-1PH loop in and out feeder cables and insula ng boots at elbow break out cable termina ons. Provide insula ng boots at spare breakout terminals. J-Box shall be provided with 3-1PH elbow arrestors with insula ng boots.

c) New vault below Sec on J-box shall be provided with side bo om plate with suitable bo om cable entries with 5” conduit sleeves stub-ups required.

d) A er cable installa on and termina ons within J-Box, conduit sleeves shall be sealed with weatherproof compound.

e) J-box exterior around equipment shall be flat ground surface with no vegeta on and with no overhead above equipment tree branches.

f) As an op on as per VM analysis and cost reduc on measure, this loca on Sec on J-box shall be eliminated by installing feeder cables (3-1PH) splices, waterproof type to be located within river water feeder cables run.

PHOTO 134233

PHOTO 134606

PHOTO 9899

PHOTO 9901

PHOTO 9902

PHOTO 9903

PHOTO 9906

Loca on I Data Sheet:

Pad mount Oil Switch - Recloser:

Photos: 135936, 9909, 9910

Exis ng Equipment:

U lity Main Service MV (12.47KV rated) 3PH Feeder ON/OFF Recloser (3- single phase switches within oil insulated tank) in weatherproof steel enclosure box, NEMA 3R outdoor rated, pad mount with following.

i. 3 -1PH on/off switches are within oil filled sealed tank installed within enclosure.

Name plate detail not visually seen or info’ available. 3- 1PH Switches are provided with sheet metal barriers as visual seen in photo.

ii. Front of box has individual with individual front door and par oned sheet steel barriers - 3 – 1PH MV service feeder incoming and load feeder outgoing from each 1PH switch cable connec ons as visual seen in photo.

iii. Each 1PH feeder cable termina on independent front compartment has elbow connectors with proper insulated boots as visual seen.

iv. Each 1PH Cable feeder termina on compartment has manual handle for switch opera on with visual indicator for switch posi ons “OPEN” or CLOSED” per NEC required.

v. There are three small cable termina on break out terminal elbows seen without any cable connected. It seems (to be verified) they are for remote/ alarm indica ons for Switch ON/OFF/Trip indica on.

vi. Box Interior components and box properly bonded as seen visual.

vii. Stub -up conduits within switch cable termina on compartment seen not weather ght seal.

viii. No Elbow Arrestors seen at incoming and outgoing load feeders’ break out terminals for each switch terminals.

ix. As per Facility, Phase C of exis ng MV (12.47KV NPS Service) 3PH cable feeder segment/sec on run from this recloser switch to the Sec on J-Box due to the cable fault occurred few years ago was replaced with new by u lity company, NSEC. New cable construc on is similar to exis ng with it has addi onal exterior insula on over copper mul strand circular Neutral conductor to protect cable from lightning strike and insula on failure for the exposed cable part or prevent failure from mechanical damage/ break exposed neutral copper wires/conductor which is bonded to ground for safe opera on of system and opera ng staff safety.

Exis ng Equipment Condi ons:

a) Equipment Ownership: NPS shall confirm Recloser is owned and operated by NSEC or owned by NPS. Is this an interface demarca on line for KF load feeder ownership to NPS? NPS shall verify contract agreement made in past with NPS.

b) Equipment Age: Recloser is original to MV service feeder installed in 1980 for NPS installed by U lity NSEC.

c) Configura on: Recloser is 3- 1PH individual switches opera on and not grouped 3- PH opera on.

d) Equipment Loca on: Switch front is located on steep sloped ground surface with vegeta on around without minimum 10’ clear flat ground surface for operator access and safety as per codes required.

e) Recently installed new PH C cable feeder run exposed without in conduit over ground as seen in photo. Addi onally at Switch, new feeder cable is penetrated to the side of Recloser enclosure as seen without proper waterproof seal. Both exposed cable run without conduit and cable entry unsealed will create hazard for electrical system opera on con nuity as well as workers safety.

Recommenda ons:

a) As Recloser is 40+ years old, per Electrical Standards it is not reliable for opera on as required for power supply con nuity and it is not 3PH group operated manual switch instead it has 3-1PH switches required to be operated individually and therefore to be replaced with new.

b) New MV (15KV rated) 3PH Group operated Recloser/ Circuit Breaker shall be considered to be Gas Insulated (SF6 insula ng Gas) instead oil insulated for compact switch footprint, less/ no maintenance compared to oil insula on and compa ble with greener environment as there is no oil leak and soil contamina on risk. It is unknown that oil has PCB presence.

c) New Recloser shall be provided with manual opera on, indica on for switch posi ons and trip alarms with remote opera on and indica on/ trip alarms as required.

d) Provide elbow Arrestors at 3PH load feeder cables outgoing termina ons.

e) New recloser shall be pad mount in weatherproof, NEMA 3R rated enclosure.

Replace exis ng vault below recloser for underground feeder stub ups to within Switch for cable termina ons.

f) Minimum 10’ feet clear in front and around recloser with flat ground surface, without vegeta on and clear overhead space without tree branches shall be provided.

g) Cable feeder run shall be installed within conduit and installed underground for on land installa on por on.

PHOTO 135936

PHOTO 9909

PHOTO 9910

Loca on J Data Sheet:

MV (12.47KV Service rated) 3-1PH feeder cables Sec on Junc on Box: Assumed 3- Way, 200A, 3PH, 25KV rated as there is no access to open junc on box at the me of field survey due to trees in front of box.

Photos: 141524, 141532, 9913, 9914, 9915.

Exis ng Equipment:

MV Cable feeder (in and out) Sec on Junc on Box suitable for sec onalizing long feeder underground cable run segment for isola on, tes ng or repairs, and replace par al feeder cable segment in weatherproof steel enclosure box, NEMA 3R outdoor rated, pad mount with following:

i. Assumed 3-way junc on box, with 3- 1PH feeder cables incoming and 3- 1PH feeder cables outgoing.

ii. There is no front access to J-Box due to trees and vegeta on during field survey to verify presence of Elbow Arrestors at break out terminals, 1 Way – 3 – 1PH breakout terminals if any spare, presence of Insula ng boots at breakout terminals are present and are in good condi on, bonding for equipment, cables, and spare terminals, and if any at Elbow Arrestors.

iii. Interior of box verifica on required for presence of any dust, conduits entry properly sealing, any arc flash and deposit of black carbon.

iv. Grounding rods and grounding is unknown.

v. Addi onally, from visual during field survey and as seen in photos taken, J-Box is located close to water without proper clearances around box. Also, recently installed new Phase C cable feeder is exposed and enters exis ng J-Box at side wall of enclosure and is not water sealed.

Exis ng Equipment Condi ons:

a) Equipment Ownership: Based on discussions with NPS and NSEC field staff it belongs to NPS. NPS shall verify contract agreement made in past with NPS and confirm.

b) Equipment Age: Sec on J-Box is original to MV service feeder installed in 1980.

c) Equipment Condi ons: J-Box exterior condi ons visual seems ok. Box interior found flashover and black carbon deposits seen as indicated above.

d) Equipment loca on: Code Compliance: Access around J-Box is not clear due to vegeta ons and trees around and box, it is adjacent to water which may cause water entry to box during water flood event. All of these violates the codes and standards as per clear front and around equipment access as required per NEC, NESC standards, u lity NSEC and OSHA requirements of minimum 10 feet clearance in front of equipment access – J-Box for personnel operator safety and loca on of equipment shall be outside of 100 years flood zone per NAVCAD flood map.

e) Addi onal observa ons:

i. Phase C Feeder Cable side entry to j-box enclosure without conduit sleeves or waterproof seal.

ii. Exposed cable run on ground without conduit is a viola on to NEC code and not safe per OSHA.

Requirements:

a) Sec on J-Box is 40+ years old, per Electrical Standards it is not reliable for opera on as required for power supply con nuity therefore to be replaced with new.

b) New J-Box shall be located outside 100 years flood zone and away from water on island.

c) New Sec on J-box shall be 3 -Way Sec on box, 25KV rated, 200A rated with elbow cable termina on connectors for 3-1PH loop in and out feeder cables and insula ng boots at elbow break out cable termina ons. Provide insula ng boots at spare breakout terminals. J-Box shall be provided with 3-1PH elbow arrestors with insula ng boots.

d) New vault below Sec on J-box shall be provided with side bo om plate with suitable bo om cable entries with 5” conduit sleeves stub-ups required.

e) A er cable installa on and termina ons within J-Box, conduit sleeves shall be sealed with weatherproof compound.

f) J-box exterior around equipment shall be flat ground surface with no vegeta on and with no overhead above equipment tree branches.

g) As an op on as per VM analysis and cost reduc on measure, this loca on Sec on J-

PHOTO 141524

PHOTO 141532

PHOTO 9913

PHOTO 9914

PHOTO 9915

Loca on K Data Sheet:

Photos: 142705, 142729, 9916, 9917, 9918.

Exis ng Equipment:

MV Cable feeder (in and out) Sec on Junc on Box suitable for sec onalizing long feeder underground cable run segment for isola on, tes ng or repairs, and replace par al feeder cable segment in weatherproof steel enclosure box, NEMA 3R outdoor rated, pad mount with following:

i. 3-way junc on box, with 3- 1PH feeder cables incoming and 3- 1PH feeder cables outgoing.

ii. No Elbow Arrestors for 3PH in & out cable feeders at termina ons seen.

iii. 1 Way – 3 – 1PH breakout terminals spare.

iv. Insula ng boots to breakout terminals are proper and in good condi on.

v. Bonding for equipment, cables, and spare terminals seen ok.

vi. Grounding rods and grounding is unknown.

Exis ng Equipment Condi ons:

a) Equipment Ownership: Based on discussions with NPS and NSEC field staff it belongs to NPS. NPS shall verify contract agreement made in past with NPS and confirm.

b) Equipment Age: Sec on J-Box is original to MV service feeder installed in 1980.

c) Equipment Condi ons: J-Box exterior and interior condi ons visual seems ok.

d) Equipment loca on: Code Compliance: Access around J-Box is not clear due to vegeta ons around. Note: Front and around equipment clearance per NEC, NESC standards, u lity NSEC and OSHA requirements for a minimum 10 feet clearance in front of equipment access – J-Box for personnel operator safety is required.

e) Addi onal observa ons:

i. Feeder Cables bo om entry via exis ng vault does not seem to have any bo om seal plate and without conduit sleeves.

ii. J-Box interior seen dust and not have proper weatherproof seals. dust and moisture within J-box is hazardous (Arc flash – due to PH-PH or PH to Ground short circuits) for reducing creepage distance between minimum PH

- PH and PH - Ground distance required.

Requirements:

a) Sec on J-Box is 40+ years old, per Electrical Standards it is not reliable for opera on as required for power supply con nuity therefore to be replaced with new.

b) New Sec on J-box shall be 3-Way Sec on J-box, 25KV rated, 200A rated with elbow cable termina on connectors for 3-1PH loop in and out feeder cables with insula ng boots, addi onal f3-1PH break out elbow connectors shall be provided with insula ng boots for future cable connec ons. J-Box shall be provided with 3-1PH elbow arrestors with insula ng boots.

c) New vault below Sec on J-box shall be provided with side bo om plate with suitable bo om cable entries with 5” conduit sleeves stub-ups required.

d) A er cable installa on and termina ons within J-Box, conduit sleeves shall be sealed with weatherproof compound.

vegeta on) or with no overhead above equipment tree branches.

PHOTO 142705

PHOTO 142729

PHOTO 9916

PHOTO 9917

PHOTO 9918

Loca on L Data Sheet:

Photos: 144521, 144701, 9923, 9924, 9925.

Exis ng Equipment:

MV Cable feeder (in and out) Sec on Junc on Box suitable for sec onalizing long feeder underground cable run segment for isola on, tes ng or repairs, and replace par al feeder cable segment in weatherproof steel enclosure box, NEMA 3R outdoor rated, pad mount with following:

i. 3-way junc on box, with 3- 1PH feeder cables incoming and 3- 1PH feeder cables outgoing except Phase C has addi onal 1-Way breakout terminal seen.

ii. (3) – 1PH Elbow Arrestors 10KV rated (8.4KV rated MCOVs) for 3PH in & out cable feeders at termina ons seen with proper insula ng boots .

iii. Only Phase C – has addi onal 1 Way breakout terminal spare seen.

iv. Insula ng boots to breakout terminals are proper and in good condi on.

v. Bonding for equipment, cables, and spare terminals seen ok.

vi. Grounding rods and grounding is unknown.

Exis ng Equipment Condi ons:

a) Equipment Ownership: Based on discussions with NPS and NSEC field staff it belongs to NPS. NPS shall verify contract agreement made in past with NPS and confirm.

b) Equipment Age: Sec on J-Box is original to MV service feeder installed in 1980.

c) Equipment Condi ons: J-Box exterior and interior condi ons visual seems ok.

d) Equipment loca on: Code Compliance: Access around J-Box is not clear due to vegeta ons, not a flat ground surface and stone wall around the box seen. Note:

Front and around equipment clearance per NEC, NESC standards, u lity NSEC and OSHA requirements for a minimum 10 feet clearance in front of equipment access – J-Box for personnel operator safety is required.

e) Addi onal observa ons:

i. Feeder Cables bo om entry via exis ng vault does not seem to have any bo om seal plate and without conduit sleeves.

ii. J-Box interior seen dust and not have proper weatherproof seals. dust and moisture within J-box is hazardous (Arc flash – due to PH-PH or PH to Ground short circuits) for reducing creepage distance between minimum PH

- PH and PH - Ground distance required.

Requirements:

a) Sec on J-Box is 40+ years old, per Electrical Standards it is not reliable for opera on as required for power supply con nuity therefore to be replaced with new.

b) New Sec on J-box shall be 3-Way Sec on J-box, 25KV rated, 200A rated with elbow cable termina on connectors for 3-1PH loop in and out feeder cables with insula ng boots, addi onal f3-1PH break out elbow connectors shall be provided spare with

c) New vault below Sec on J-box shall be provided with side bo om plate with suitable bo om cable entries with 5” conduit sleeves stub-ups required.

d) A er cable installa on and termina ons within J-Box, conduit sleeves shall be sealed with weatherproof compound.

e) J-box exterior around equipment verify minimum 10’ clearance with a flat ground surface shall be provided (with no vegeta on) or with no overhead above equipment tree branches.

PHOTO 144521

PHOTO 144701

PHOTO 9923

PHOTO 9924

PHOTO 9925

Loca on M Data Sheet:

Photos:145612, 145645, 145801.

Exis ng Equipment:

MV Cable feeder (in and out) Sec on Junc on Box suitable for sec onalizing long feeder underground cable run segment for isola on, tes ng or repairs, and replace par al feeder cable segment in weatherproof steel enclosure box, NEMA 3R outdoor rated, pad mount with following:

i. 3-way junc on box, with 3- 1PH feeder cables incoming and 3- 1PH feeder cables outgoing.

ii. 1- way – (3) connectors spare seen for future 3PH feeder.

iii. No Elbow Arrestors for 3PH in & out cable feeders at termina ons seen.

iv. Insula ng boots to elbow breakout terminals are proper and in good condi on except for Spare PH-C elbow breakout terminal does not have insula on boot.

v. Bonding for equipment, cables, and spare terminals seen ok.

vi. Grounding rods and grounding is unknown.

Exis ng Equipment Condi ons:

a) Equipment Ownership: Based on discussions with NPS and NSEC field staff it belongs to NPS. NPS shall verify contract agreement made in past with NPS and confirm.

b) Equipment Age: Sec on J-Box is original to MV service feeder installed in 1980.

c) Equipment Condi ons: J-Box exterior and interior condi ons visual seems ok.

d) Equipment loca on: Code Compliance: J-Box is not accessible as seen in photo having presence of vegeta ons & trees, not a flat ground surface around J-Box and back of rock wall. Note: Front and around equipment clearance per NEC, NESC standards, u lity NSEC and OSHA requirements for a minimum 10 feet clearance in front of equipment access – J-Box for personnel operator safety is required.

e) Addi onal observa ons:

i. Feeder Cables bo om entry via exis ng vault does not seem to have any bo om seal plate and without conduit sleeves.

ii. J-Box interior seen dust and not have proper weatherproof seals. dust and moisture within J-box is hazardous (Arc flash – due to PH-PH or PH to Ground short circuits) for reducing creepage distance between minimum PH

- PH and PH - Ground distance required.

Requirements:

a) Sec on J-Box is 40+ years old, per Electrical Standards it is not reliable for opera on as required for power supply con nuity therefore to be replaced with new.

b) New Sec on J-box shall be 3-Way Sec on J-box, 25KV rated, 200A rated with elbow cable termina on connectors for 3-1PH loop in and out feeder cables with insula ng boots, addi onal f3-1PH break out elbow connectors shall be provided spare with

c) New vault below Sec on J-box shall be provided with side bo om plate with suitable bo om cable entries with 5” conduit sleeves stub-ups required.

d) A er cable installa on and termina ons within J-Box, conduit sleeves shall be sealed with weatherproof compound.

e) New Sec on J-Box shall require to be located at different loca on than exis ng with verifying and complying at a minimum for exterior around equipment minimum 10’ clearance with a flat ground surface (with no vegeta on) and with no presence of overhead above equipment tree branches.

f) As an op on as per VM analysis and cost reduc on measure, this loca on Sec on J-

PHOTO 145612

PHOTO 145645

PHOTO 145801

Loca on N Data Sheet: (On KF District)

MV (12.47KV Service rated) 3-1PH feeder cables Sec on Junc on Box: 4-Way, 200A, 3PH, 25KV rated.

Photos: 102121, 102227, 9927, 9928, 9931.

Exis ng Equipment:

MV Cable feeder (in and out) Sec on Junc on Box with 3PH Branch to Facility Maintenance Shop (loca on “O”) suitable for sec onalizing long feeders underground cable run segment for isola on, tes ng or repairs, and replace par al feeder cable segment in weatherproof steel enclosure box, NEMA 3R outdoor rated, pad mount with following:

i. 3-way junc on box, with 3- 1PH feeder cables incoming and 3- 1PH feeder cables outgoing with elbow breakouts terminals and proper insula on boots at cable termina ons seen.

ii. Addi onal 3-1PH branch load feeder cables (supplying power to Facility Maintenance Shop) connec ons with 3-1PH elbow connectors to J Box breakout terminals with proper insula on boots provided is seen.

iii. In addi on, (3) – 1PH Elbow Arrestors 10KV rated (8.4KV rated MCOVs) seen installed at J-Box Terminals with proper insula ng boots.

iv. Insula ng boots to breakout terminals are proper and in good condi on.

v. Bonding for equipment, cables, and spare terminals seen ok.

vi. Grounding rods and grounding is unknown.

Exis ng Equipment Condi ons:

a) Equipment Ownership: Based on discussions with NPS and NSEC field staff it belongs to NPS. NPS shall verify contract agreement made in past with NPS and confirm.

b) Equipment Age: Sec on J-Box is original to MV service feeder installed in 1980.

c) Equipment Condi ons: J-Box exterior and interior condi ons visual seems ok.

d) Equipment loca on: Code Compliance: Access around J-Box is not clear due to vegeta ons around the box seen. Note: Front and around equipment clearance per NEC, NESC standards, u lity NSEC and OSHA requirements for a minimum 10 feet clearance in front of equipment access – J-Box for personnel operator safety is required.

e) Addi onal observa ons:

i. Feeder Cables bo om entry via exis ng vault does not seem to have any bo om seal plate and without conduit sleeves.

ii. J-Box interior seen dust and not have proper weatherproof seals. dust and moisture within J-box is hazardous (Arc flash – due to PH-PH or PH to Ground short circuits) for reducing creepage distance between minimum PH

- PH and PH - Ground distance required.

Requirements:

KF District currently has only single source of Power supply (single u lity, NSEC MV 3PH Feeder) feeds electrical loads to Ke le Falls (KF) District land en rely. There is no redundant source of power either from u lity or backup Generator Power (including Emergency Power required by codes for personal safety). Facility is observing frequent u lity power supply feeder outages in past several years due to feeder faults.

It is important for NPS to have power supply con nuity at KF District being it is a visitor’s island and isolated from available land resources and during u lity power failure incident or/and in emergency situa on. Required immediate approach to the Island by Facility personnel or Emergency responders is limited due to the travel by water boat is required which is approx. 12 miles via water from land.

Regarding the above, NPS desires to provide KF District with a Backup Power Generator with one or mul ple Generators to be installed on KF.

Based on exis ng connected loads and future loads, an es mated approx. 500KW Generator backup power size is required to provide power to the en re KF District for limited me based on diesel storage. This observa on is based on a WSP field survey and available informa on provided by the NPS.

It shall be noted that a 500KW Generator with MV (12.47KV) ra ng is not readily available in the market and required long lead me and addi onal cost. Addi onally, the generator will require addi onal voltage step-up transforma on equipment to MV (12.47KV) distribu on at KF District with mul ple required Step-down transformers at each load distribu on loca on (which is similar to exis ng KF District distribu on). Therefore, the Backup Power Generator Voltage ra ng shall be 208/120V, 3PH, 4W, ground, 60 Hz which is the same as KF Island District load distribu on voltage.

With the approach noted above, exis ng KF Island MV (12.47KV) distribu on shall be eliminated including associated electrical equipment such as exis ng MV Sec on Junc on Boxes and Voltage Step-Down transformers at mul ple load distribu on loca ons.

a) Exis ng MV feeder Sec on J-Box at this loca on shall be disconnected and demolished. Connected MV cables shall also be disconnected and removed en rely.

PHOTO 102121

PHOTO 102227

PHOTO 9927

PHOTO 9928

PHOTO 9931

Loca on O: (On KF District)

MV (12.47KV rated) 3-1PH Transformers (3-7.5 KVA rated), Secondary LV Power (100A, 208/120V, 3PH, 4W, Ground, 60 HZ rated) Distribu on to Facility Maintenance Building.

Photos: 9935, 9937, 9938, 9940, 9941, 9942, 9945, 9948, 103902.

Exis ng Equipment:

MV Cable feeder (in and out) Sec on Junc on Box with 3PH Branch to Facility Maintenance Shop (loca on “O”) suitable for sec onalizing long feeders underground cable run segment for isola on, tes ng or repairs, and replace par al feeder cable segment in weatherproof steel enclosure box, NEMA 3R outdoor rated, pad mount with following:

i. (3) Single Phase, 7.5KVA each Transformers in single outdoor NEMA 3R rated enclosure, pad mount type: Primary winding; Single phase, Neutral grounded, 3 Wire, 12.47KV/7.2KV, ground, 60 Hz; Secondary winding – 208/120V, Neutral grounded, 60 Hz. Transformer is oil cooled with each transformer coils are in individual sealed oil tank. Transformer oil is PCB free. Refer photos for addi onal informa on.

ii. LV Electric Meter: LV 200A, 3PH, 4W, 208/120V AC, 60 Hz rated in NEMA 3R outdoor rated enclosure a ached to transformer enclosure.

iii. LV Secondary Service Disconnect Panel: Adjacent to the transformer, a LV Secondary power disconnect panel (make square D), 1PH, 3W, 208/120V AC rated with ground bus in outdoor NEMA 3R rated enclosure is installed. Main CB ra ng is 3 Pole, 100A ra ng and branch CBs – (1) 2 Pole, 100A rated supplies power to Maintenance Shop Building and 1 Poe, 20A CB supplies power to adjacent 20A, General receptacle.

iv. LV Power Distribu on Panelboard: 100a, 2 pole branch CB within above indicated service disconnect panel connected to LV Power Distribu on Panel 100A, Single Phase, 208/120V AC rated, 3 Wire and ground located within Facility Maintenance Shop building and provides power to Maintenance equipment and shop ven la on system.

v. 3-way junc on box, with 3- 1PH feeder cables incoming and 3- 1PH feeder cables outgoing with elbow breakouts terminals and proper insula on boots at cable termina ons seen.

vi. Addi onal 3-1PH branch load feeder cables (supplying power to Facility Maintenance Shop) connec ons with 3-1PH elbow connectors to J Box breakout terminals with proper insula on boots provided is seen.

vii. In addi on, (3) – 1PH Elbow Arrestors 10KV rated (8.4KV rated MCOVs) seen installed at J-Box Terminals with proper insula ng boots.

viii. Insula ng boots to breakout terminals are proper and in good condi on.

ix. Bonding for all equipment, cables, seen ok.

x. Grounding rods and grounding is unknown.

Exis ng Equipment Condi ons:

a) Equipment Age: Transformer, LV Service Disconnect Panel, Facility shop Power distribu on panel is original and installed in late 1970.

b) Equipment Condi ons: All equipment condi ons visual seems ok and are opera onal as per facility.

c) Equipment loca on: is code complaint as per Code per NEC, NESC standards, u lity NSEC and OSHA requirements for clearance required for personnel operator safety.

d) Addi onal observa ons:

i. LV Main Service disconnect panel main CB is 2Pole, 200A rated as seen which is higher than Transformer Secondary power output required 3Pole, 80A rated. This is code viola on and shall require to be replaced.

Requirements:

KF District currently has only single source of Power supply (single u lity, NSEC MV 3PH Feeder) feeds electrical loads to Ke le Falls (KF) District land en rely.