24Q0086 - Attachment A - NEC - Electric Switch Gear PMSC.pdf

19PM0724Q00816 NEC - Electric Switch Gear PMSC

Tier II & Tier III Switchgear Maintenance

Tier II switchgear maintenance is defined as: Visual and mechanical inspection to ensure the proper operation of all factory and vender installed meters, breakers, controls associated with the switch gear. Inspection of the entire switchgear for loose parts, connections, and functioning indicator lights. Cleaning, wiping down and vacuuming of each compartment, inside and outside cabinets.

Tier II maintenance DOES NOT include racking out, testing and service of OEM electrical breakers, see Tier III SOW.

Tier III breaker maintenance is defined as: Visual and mechanical inspection by the Original Equipment Manufacturer (OEM) to ensure the proper operation of all factory and vender installed meters, breakers, controls associated with the switch gear. Inspection of the entire switchgear for loose parts, connections, and functioning indicator lights. Cleaning, wiping down and vacuuming of each cradle compartment, inside and outside cabinets.

Preforming testing on electrically operated breakers with appropriate breaker test equipment. Racking breakers out and in. Lubricating all lubrication points per manufactures recommended procedures and timetables.

I. GENERAL INFORMATION:

The United States Embassies: Panama City in Panama require professional services and contractor cost proposals to perform preventive maintenance services of the facility’s electrical switchgear(s).

II. PROJECT REQUIREMENTS:

The Contractor shall perform preventive maintenance as described in this STATEMENT OF WORK. The objective of scheduled preventive maintenance is to eliminate system malfunction, breakdown, and deterioration when units are activated/running.

DESCRIPTION OF EQUIPMENT:

The attached equipment list provides details of the equipment to be maintained including:

• Load Bank Switchboard

• MDS/G

• MDS/E&U

• MDS/H

• MDS/E & U

III. GENERAL REQUIREMENTS:

19PM0724Q00816 NEC - Electric Switch Gear PMSC

The Contractor shall provide the labor, tools, and materials required to perform all preventive maintenance as outlined in this SOW. Embassy staff have service manuals for switchgears on-site.

Contractor shall provide two (2) TIER II visit in one (1) Year.

IV. QUALIFIED CONTRACTORS: LICENSED ELECTRICAL CONTRACTOR.

The approved contractor must provide a licensed electrician/qualified technician to provide service on switchgear.

The approved contractor must provide a Factory Certified Technician (OEM) with a minimum of five years breaker maintenance experience for the corresponding make of breaker(s) being serviced, for example, Eaton to service Eaton, Schneider to service Schneider and ABB to service GE/ABB etc. to perform the factory service work on the United States Government switchgear circuit breakers and equipment. These qualified technicians are required to be on-site for the servicing of the switchgear breakers and must be accompanied by one Master or Journeyman electrician for the switchgear shutdown and servicing. Credentials as proof of training and valid electrical licenses must be provided to the COR prior to the execution of the work. The requirement for electrical safety training also applies to this contract.

V. QUALIFIED ORGINAL EQUIPMENT MANUFACTURER (OEM) TECHNICIAN:

A Factory Certified Technician (OEM) with a minimum of five years breaker maintenance experience for the corresponding make of breaker(s) being serviced, for example, Eaton to service Eaton, Schneider to service Schneider and ABB to service GE/ABB etc. to perform the factory service work on the United States Government switchgear circuit breakers and equipment. These qualified technicians are required to be on-site for the servicing of the switchgear breakers and must be accompanied by a Post qualified electrician/electrical engineer for the switchgear shutdown and servicing. The requirement for electrical safety training also applies to this contract.

Approved (Manufacturer) Breaker Original Equipment Manufacturer (OEM):

VI. SAFTEY & SPECIAL INSTRUCTIONS:

SAFTEY: Safety is the highest priority on this and all OBO/CFSM/FAC projects/operations. OBO SHEM policy is to work de-energized! The team leader shall direct all of those under his/her charge to work safely. Regular safety meeting shall be held among on-site personnel and safety concerns shall be brought to the attention of the Post Safety and Health Officer (POSHO) and /or the COR/COTR. The contactor is expected to provide all required PPE for the technicians to work safely on all OBO locations worldwide. Lock Out Tag Out (LOTO) is to be strictly enforced.

19PM0724Q00816 NEC - Electric Switch Gear PMSC

VII. SCOPE OF WORK: TIER II ELECTRICAL SWITCHGEAR PREVENTIVE MAINTENANCE

Contractor shall provide all materials, supervision, labor, tools, and equipment to perform preventive maintenance. All personnel working in the vicinity shall wear and /or use appropriate safety protection while all work is performed. Any questions or injuries shall be brought to the attention of the Post COR and Occupation Safety and Health Officer (POSHO) immediately. Material Safety Data Sheets (MSDS) for all HAZMAT shall be provided by the Contractor. Copies shall be provided to the COR for approval.

The systems and components to be maintained include power conducting equipment such as switches, circuit breakers, fuses, and control systems such as control panels, current transformers and protective relays. The attached equipment list provides details.

1. The contractor shall provide the COR with a list of necessary parts and materials.

2. The contractor shall provide emergency assistance for switchgear support, priced at an hourly rate, within 24 hours of being contacted by the COR.

3. The Government will not provide equipment for switchgear testing: Circuit breaker lifting truck or trolley may be available at post, contact Post to confirm prior to visit.

If any discrepancies are found with the switchgear(s) that are not covered under this scope of work, then the contractor shall provide the following:

1. Detailed report noting discrepancy found.

2. Bill of Materials (BOM) to include component name, quantity, part# and price for any repair material required and material lead-time.

3. The contractor shall provide emergency assistance for switchgear support within 24 hours of being contacted by the COR.

4. Price quote for repair labor.

Note: shutdowns are normally preformed off hours and must be coordinated with post personnel.

At a minimum, the following work must be done:

1. Use appropriate personal protective equipment (PPE) when preforming work.

2. Check all work areas, tools and equipment to ensure unsafe conditions are eliminated or guarded against.

3. Follow site safety procedures.

4. Schedule maintenance with operating personnel and affected offices (security).

5. Before de-energizing equipment, verify operation of back-up power before shutdown.

Return to normal after verification and proceed with shut down for maintenance.

6. Follow LOTO procedures.

7. Lock out and disconnect/open all sources of power before preforming any work/cleaning inside equipment that has exposed live parts or present an electrical hazard.

19PM0724Q00816 NEC - Electric Switch Gear PMSC

8. Review and follow the manufacturer’s instructions for the service/cleaning requirements of equipment.

9. Remove LOTO in accordance with appropriate procedures.

10. Record results of control work/testing in history log, if applicable.

11. Simulate utility outage after maintenance is completed to verify back up power preforms as required.

12. Report all incidents and near miss incidents to COR and assist as requested in the investigation and corrective action.

Note: Below are recommended PM schedules and tasks; applicable intervals and procedures for Post. This is a generic list. Manufacture’s recommendations should be followed and supersede recommendations in this list. Contactor should confirm these before finalizing contract and supply the maintenance specs to post.

At a minimum the contractor shall comply with the following:

1. Contractor shall submit to the COR for review, worksheet/checklist that will be used for preforming maintenance/cleaning service.

2. A discrepancy report shall be submitted to the COR immediately upon discovery of any conditions that could result in equipment failure.

3. Test and inspection report shall be submitted to the COR within three days of completing work.

4. All test sheets and reports shall be in English.

MAINTENANCE PROCEDURES:

NOTES:

• Before each consecutive interval is performed, all maintenance from the previous intervals must be performed.

• Switchgear(s) is composed of power conducting equipment such as switches, circuit breakers, fuses and control systems such as control panels, current transformers and protective relays. It is an essential component of the Diplomatic Facility’s Electrical Supply System.

The purpose of this Statement of Work is to ensure the switchgear(s) for this facility are maintained according to manufacturer’s recommendations to ensure the readiness and proper operation of the system.

Coordination of scheduling maintenance shall begin 90 days in advance. (Intent: Contractor needs to contact post to begin scheduling and outage coordination 90 days in advance).

A. Annual Schedule:

I. Step-One, Visual Inspection:

19PM0724Q00816 NEC - Electric Switch Gear PMSC

1. Confirm working space and clearance is maintained around all the electrical gear per the

National Electrical Code (NEC) requirements.

2. Check that the electrical room is free from foreign articles not associated with the room.

3. Visual and mechanical inspection to ensure the proper operation of all factory and vender installed meters, breakers associated with the switch gear.

4. Inspect the entire switchgear for loose parts or connections. Slight discoloration or tarnish of the silver plate is normal and of no concern. Severe discoloration of the silver plate is a sign of an improper or loose contact and overheating.

5. Inspect physical, electrical, and mechanical condition including evidence of moisture or corona.

6. Inspect that all filters are in place, and the vents are clear.

7. Check to see that all anchor bolts and other structural bolts are tight.

8. Check for undue noise and vibration.

9. Check if room is environmentally conditioned for local temperature conditions.

II. Step-Two, Verification:

1. Compare the installed metering measurements with voltage and power readings from a

True RMS meter. Make calibration corrections as necessary to ensure accurate voltage and power readings.

2. Verify the switchgear circuit breakers sizing match the drawings.

3. Verify the proper labeling of all the breakers in the switchgear.

4. Post breaker schedule on switchgear.

5. Verify operation of heaters and thermostats, if used

6. Verify that the Post as-built drawings (electrical one-line) match the switchgear distribution. Make “Red Ink” corrections on a paper copy as necessary. Inform the COR and FM of any discrepancies or changes to the drawings.

7. Verify that the required NFPA70-E safety equipment is available and in good condition for local staff to use.

8. Refer to the manufacture’s recommendations for additional maintenance requirements.

9. Verify Modbus lights on the PLCs are on.

10. Verify HMIs and all metering screens work properly.

III. Step-Three, Inspect/Exercise/Clean/Correct:

NOTE: Outage requires off hours work.

1. Schedule power outage of equipment for cleaning. Coordinate any required outage with the COR and FM.

2. Photo of equipment condition BEFORE servicing and is required in final report documentation.

3. Perform infrared testing on all conductor connections, buss terminations. Only record hot spots on digital format for review.

19PM0724Q00816 NEC - Electric Switch Gear PMSC

4. Photo of equipment condition AFTER servicing and is required in final report documentation.

5. Perform proper Lock-out/Tag-out and ensure the system is de-energized before removing panel covers and exposing any electrical bus or cabling. Under no circumstances should the equipment be energized during the maintenance operation.

Photo of equipment locked and tagged out is required in final report documentation.

6. Inspect anchorage, alignment, grounding for the equipment.

7. Inspect the bus bar connections and insulating barrier(s) for damage.

8. Inspect the cable load connectors, standoff insulators, primary contact supports, and all accessible cable terminations for indications of insulation deterioration. Vacuum each compartment and wipe off all insulation.

9. As applicable perform function tests on breakers, test trip units and settings. Replace any faulty batteries, fuses, or switches.

10. Clean each compartment. Check for damage, excessive wear, or corrosion.

11. Check and correct any loose components or connections.

12. Torque loose connections identified during the infrared test or during inspection.

13. Confirm correct operation and sequencing of electrical and mechanical interlock systems.

14. Correct any faulty, damaged, discolored, and worn components using government provided spares.

15. Exercise all breakers Ten (10) times.

16. Inspect mechanical indicating devices for correct operation.

17. Inspect all power control transformers for physical damage, cracked insulation, broken leads, tightness of connections, defective wiring, proper overload protection, and overall general wiring.

18. Follow the manufactures recommendations for additional maintenance requirements.

19. Clean or replace any air filters present.

20. Check all control circuits by tugging on each wire to verify a snug fit.

21. Remove lockout/tag out in accordance with appropriate procedures.

22. Re-energizing the equipment and ensure that all components are up and functioning properly. Make the COR and FM aware of all components that are not functioning properly.

19PM0724Q00816 NEC - Electric Switch Gear PMSC

VIII. SCOPE OF WORK: TIER III ELECTRICAL SWITCHGEAR PREVENTIVE MAINTENANCE.

MAINTENANCE PROCEDURES:

NOTES:

The contract does not replace the need for operator level checks and inspections. There may be items pertinent to the operation of the system which are not included in this SOW.

The purpose of this Statement of Work is to ensure the switchgear(s) for this facility are maintained according to manufacturer’s recommendations to ensure the readiness and proper operation of the system.

Contractor shall perform one (1) TIER III during one (1) year.

Coordination of scheduling maintenance shall begin 90 days in advance. (Intent: Contractor needs to contact post to begin scheduling and outage coordination 90 days in advance).

A. Five- seven-year OEM Schedule:

I. Step-one, Verification: N/A for this SOW.

II. Step-Two, Verification: N/A for this SOW.

III. Step-Three, Inspect/Clean/Correct:

NOTE: Outage requires off hours work, Saturday and/or Sunday.

1. Schedule power outage of equipment for cleaning. Coordinate any required outage with the COR and FM.

2. Document the manufacture serial number and/or G.O. number and catalog number.

3. Supply an OEM test sheet for each breaker.

4. Each test sheet should have all documented breaker information and trip unit setting.

5. Supply and replace all trip unit batteries.

6. Supply and replace, if requested, all internal open coils, close coils actuators for the main utility, generators and tie breakers.

7. Supply and replace specified open coils in breakers

8. Supply and replace specified close coils in breakers

9. Supply and replace specified UVRs in breakers

10. Supply and install open/close button locks for breakers

11. Supply and install mechanical operations counter for breakers

12. Perform proper Lock out/Tag out and ensure the system is de-energized before removing panel covers and exposing any electrical bus or cabling. Under no circumstances should the equipment be energized during the maintenance operation.

13. Inspect anchorage, alignment, grounding for the equipment.

19PM0724Q00816 NEC - Electric Switch Gear PMSC

14. The breaker must be racked in and out by the OEM technician.

15. Inspect the bus bar connections and insulating barrier(s) for damage.

16. Clean each breaker cradle compartment. Check for damage, excessive wear, or corrosion.

17. Lubricate the primary and ground contacts and all moving joints (shutters, mechanism-operated cell (MOC), truck-operated cell (TOC), etc.). Inspect the chains/sprocket and the lifting rail of lift truck, if used for normal operation. Lubricate per manufacturer recommendations.

18. Check for and correct any lose control wires connections.

19. Apply appropriate dielectric lubrication on moving current-carrying parts and on mechanical moving and sliding surfaces. All friction surfaces and articulation in the circuit breaker, disconnect and/or earth-inn switch drives must be lubricated. Refer to manufacturer’s recommendations for approved lubricants and points of lubrication.

20. Correct any faulty, damaged, discolored, and worn components using government provided spares.

21. With breaker open, inspect:

A. Primary leads, insulators, current transformer mounting and terminations and secondary disconnects.

B. Trip unit mounting and connectors.

C. Frame condition.

D. Mechanical and safety interlocks.

E. Ground contact.

F. Verify the manual operation of the breaker.

G. Charge closing spring using manual charge handle.

H. Close breaker manually ten (10) times in the CONNECT position (to be documented in the report).

I. Trip breaker manually ten (10) times in the CONNECT position (to be documented in the report).

J. Remove and inspect arc chutes for cracks and defects.

K. Inspect for cracks and defects.

22. With the breaker closed:

A. Inspect main contact over travel.

B. Inspect arcing contact engagement.

C. Measure contact resistance.

23. Perform “CLOSED” portions of the insulation resistance test (to be documented in the report).

24. Open breaker:

A. With the breaker open, Inspect the condition of the main and arcing contacts.

B. Clean the contacts.

C. Perform the “OPEN” portion of the insulation resistance test (to be documented in the report).

25. Inspect insulating links/push rods and interphase barriers for cracks and defects.

26. Reinstall or replace defective arc chutes from step 18J above.

19PM0724Q00816 NEC - Electric Switch Gear PMSC

27. Rack the breaker into the cell (“Test Position” if applicable) using the standard breaker maintenance accessories and check for binding or hesitation and the movement of the breaker position indicator.

28. Verify the proper operation of all breaker /cell safety interlocks.

29. Inspect all grounding connections for cleanliness and alignment.

30. Inspect neutral CT polarity, connections, and mounting.

31. Verify that all accessible moving components are adequately lubricated.

32. Verify proper operation of all status indicator lights.

33. Document all breakers information and location in each switchgear cabinet(s).

34. Refer to coordination study for trip unit settings.

35. Verify the calibration of all functions of the trip unit by means of secondary current injection:

A. Test and record long - time pick up and delay.

B. Test and record short – time pick up and delay.

C. Test and record instantaneous pick up.

D. Test and record ground - fault pick up and delay.

E. Reset trip flags and restore all settings changed during testing.

F. Supply and replace all trip units’ batteries.

G. Record all actual trip unit settings on breakers and compare to as found settings.

H. Record counter as left value if equipped.

I. Record all close coil voltage for each electrically operated breaker.

J. Record all open coil voltage for each electrically operated breaker.

K. Record all under voltage Relay if equipped voltage for each electrically operated breaker.

L. Finish recording data on the test data form, completely filling in all the appropriate blocks.

36. Apply an E-ESS test sticker to the equipment (OEM SERVICE STICKER, tech signature required) and photo documentation for every breaker serviced.

37. Remove and account for all test equipment, jumper wires, and tools used during testing.

38. Replace all barriers and covers, close all doors, and secure all latches.

39. Review and organize all test results and forms.

40. Verify control power for close and trip functions prior to racking breaker into cell.

41. Verify the electrical operation of each breaker (document in the report).

42. Perform trip, close and anti-pump tests (manually charging the breaker).

43. Verify operation of the breaker from all local and remote-control switches or terminal blocks.

44. Close and open the breaker from each controllable device in the circuit.

45. Inspect mechanical indicating devices for correct operation.

46. Make calibration corrections as necessary to ensure accurate voltage and power readings on permanently installed switchgear metering.

47. Check all control circuits by tugging on each wire to verify a snug fit.

48. Insert all of the circuit breakers to the home and close the compartment doors. Connect the control power source.

49. Remove lock out/tag out in accordance with appropriate procedures.

19PM0724Q00816 NEC - Electric Switch Gear PMSC

50. After re-energizing the equipment, ensure that all components are up and functioning properly.

51. Test all sequence of operation to confirm per design the system is fully functional.

52. Make the COR and FM aware of all components that are not functioning properly.

53. A copy of all breaker test sheets, and the TOTAL COUNT of electrically operated breakers should be emailed to PowerSupport@State.gov within 2 days after service is completed. A copy must also be left with the FM at post.

54. All EXTERNAL locations shall be marked with a minimum 3-inch label indicating UPS in this section.

55. Verify the switchgear PLC has no LOW battery light on (RED)

56. Supply Post with XX open coils for bench stock. See Section C.

57. Supply Post with XX close coils for bench stock. See Section C.

58. Supply post with XX digital trip units for bench stock. See Section C.

59. Supply Post with XX Charging Motor for bench stock. See Section C.

60. Supply Post with complete set of Close/open and UVR coils for the Generator breakers if the system is a paralleling common buss within.

B. Additional maintenance required per manufacturers recommendations.

1. Electrical Tests – perform the following.

• Visual inspection of all control and instrument transformers.

• Visual inspections for accuracy of all meters and calibrate watthour meters.

• Verify function of control transfer relays located in switchgear with multiple power sources.

C. Additional:

1. The contractor shall supply to post: (include items below if needed)

• Updated/Current troubleshooting and repair manuals for Switchgear(s).

Spare Parts, Expendables Inventory and special tools.

Contractor shall provide a list of spendable required on stock and or special diagnostic tool.

mailto:PowerSupport@State.gov

19PM0724Q00816 NEC - Electric Switch Gear PMSC

Equipment List:

GM

MS

ID#

Breaker Name:

CB1, CBE-

2, CBU1,

PSGE1,

E4, etc

Breaker Manufa cturer:

Eaton, Schneid er, G.E, etc

Serial # Model:

Wave Pro, MasterP act, Spectra, Sentron, etc

Amps Trip Unit

Model

Shunt Trip

VAC/ VDC

Spring Release

VAC/

VDC

UVR VAC/

VDC

Location:

what post calls the equipment the breakers are in.

1 598

MDS(U)

MAIN 2

SIEMEN

S

NSN SBS2020

2000AF

1750AT

NOB SWBD

RM MDS

2 599

MD1(E)

MAIN 1

SIEMEN

S

NSN SBS2020

3 600

MDS BUS-

TIE

SIEMEN

S

NSN SBS2020

4 650

GEN 2

LOADBAN

K

SQUARE

D

085056 321502

WL3GGG

33A9SPB

BXXCA

Microlo gic 5.0

LSI

24-30

VAC/ VDC

24-30

VAC/

VDC

440-480

VAC

WHE

SWGR RM

GEN GR

5 651

GEN 3

LOADBAN

K

SQUARE

D

085056 321503

WL3GGG

33A9SPB

BXXCA

Microlo gic 5.0

LSI

24-30

VAC/ VDC

24-30

VAC/

VDC

440-480

VAC

WHE

SWGR RM

GEN GR

6 652

GEN 1

LOADBAN

K

SQUARE

D

085056 321501

WL3GGG

33A9SPB

BXXCA

Microlo gic 5.0

LSI

24-30

VAC/ VDC

24-30

VAC/

VDC

440-480

VAC

WHE

SWGR RM

GEN GR

7 697

UM1

(CBM1)

SQUARE

D 085056 040503

BL3HHR4

4A9CPBB

XXCA

Microlo gic 6.0A

LSIG

24-30

VAC/ VDC

24-30

VAC/

VDC

440-480

VAC

WHE

SWGR RM

PARALLEL

SWGR

19PM0724Q00816 NEC - Electric Switch Gear PMSC

8 698

GM1

(CBS2)

SQUARE

D 085056 040503

BL3HHR4

4A9CPBB

XXCA

Microlo gic 6.0A

LSIG

24-30

VAC/ VDC

24-30

VAC/

VDC

440-480

VAC

WHE

SWGR RM

PARALLEL

SWGR

9 699 G1

SQUARE

D 085055 455602

BL3HHR4

4A9CPBB

XXCA

Microlo gic 6.0A

LSIG

24-30

VAC/ VDC

24-30

VAC/

VDC

440-480

VAC

WHE

SWGR RM

PARALLEL

SWGR

10 700 G2

SQUARE

D 085055 455601

BL3HHR4

4A9CPBB

XXCA

Microlo gic 6.0A

LSIG

24-30

VAC/ VDC

24-30

VAC/

VDC

440-480

VAC

WHE

SWGR RM

PARALLEL

SWGR

11 701 G3

SQUARE

D 085055 455603

BL3HHR4

4A9CPBB

XXCA

Microlo gic 6.0A

LSIG

24-30

VAC/ VDC

24-30

VAC/

VDC

440-480

VAC

WHE

SWGR RM

PARALLEL

SWGR

12 702

GM2

(CBS3)

SQUARE

D 085056 040504

BL3HHR4

4A9CPBB

XXCA

Microlo gic 6.0A

LSIG

24-30

VAC/ VDC

24-30

VAC/

VDC

440-480

VAC

WHE

SWGR RM

PARALLEL

SWGR

13 703

UM2

(CBM3)

SQUARE

D 085056 040501

BL3HHR4

4A9CPBB

XXCA

Microlo gic 6.0A

LSIG

24-30

VAC/ VDC

24-30

VAC/

VDC

440-480

VAC

WHE

SWGR RM

PARALLEL

SWGR

14 705

MAIN 1

(CB1)

SIEMEN

S

122809

AD01

SBS4032

3200AF

3000AT

WHE

SWGR RM

MDS

15 706

MDS/NOB

(E) BUS

SIEMEN

S 122809

P01

SBS2020

2000AT

MDS

19PM0724Q00816 NEC - Electric Switch Gear PMSC

16 707 TIE (CB3)

SIEMEN

S 122809

AD01

SBS4032

MDS

17 708

MAIN 2

(CB2)

SIEMEN

S

122809

AD01

SBS4032

MDS

18 709

MDS/H

(CB4)

SIEMEN

S

122809 N01

SBS2016

1600AF

1400AT

MDS

19 710

CIRCUIT

BREAKER

SIEMEN

S 122809

P01

SBS2020

WHE

SWGR RM

MDS

20 N/A Load Bank switch center

SquarD Master

Pact

NW25H

2500KVA N/A N/A N/A N/A HWSE

21 N/A Load Bank radiator

Mounted

Avtron K711/11 21602

N/A N/A 200KVA N/A N/A N/A N/A PCC

19PM0724Q00816 NEC - Electric Switch Gear PMSC

Sample Breaker Check Sheet, OEM check sheets required for brand of breaker being serviced: