Statement_of_Work_-_OSCAR_5_Electrical.pdf

Convert Fire & Movement Range (OSCAR 5 – Morris Range) to Combat Pistol Qualification Course (CPQC) Range

26 Electrical

i. Electrical Guidelines (New Work):

1. The electrical new work shall comply with the design criteria specified in Technical Instructions TI 800-01 Design Criteria, TI 800- 03 Technical Requirements for Design-Build, TI 811-16 Lighting Design; Technical Manual TM 5-811-1 Electric Power Supply and Distribution, TM 5-811-2 Electrical Design - Interior Electrical System, UFC 3-501-01, UFC 3-550-03FA, NFPA 70, IEEE C2, ANSI/ICEA S-94-649, TIA/EIA 568-B, and National Electrical Codes (NEC) and all referenced documents.

ii. Electrical Service and Distribution New Work:

1. The primary distribution system at Fort Benning is owned, operated and maintained by Flint Energies (Flint Electric), a private sector electric utility company. The primary distribution to and within the project site will be provided by this electric utility company.

ii. Exterior Electrical System

1. Exterior Electrical Power:

Primary distribution services may be overhead or underground.

Flint Electric will determine the routing of primary power to the facility. In this case, underground primary distribution power service will be provided by Flint Electric. All exterior panel-boards and distribution equipment will have copper bussing. Surge protection device will be provided. All distribution equipment will be furnished with bracing ratings to withstand the calculated potential fault currents. All over-current protective devices will be furnished with the appropriate interrupting ratings to withstand the same calculated fault currents. All exterior electrical system will be grounded in accordance with the latest edition of the National Electrical Code (NEC), Article 250.

iii. Interior Electrical System

1. N/A

iv. Electrical New Work:

This project is to convert Oscar 5 to a Combat Pistol Qualification Course (CPQC) Range. Our new scope of work is to add electrical power service, provide and install new fiber optic communication cables, and new concrete emplacement for one hundred and twenty (120) new target locations as indicated on the drawing. The new CPQC Range has fifteen

(15) lanes, 1 through 15. There are thirty (30) new SIT targets at 7-meter, fifteen (15) new SIT targets at 10-meter, fifteen (15) new SIT targets at 12.5-meter, fifteen (15) new SIT targets at 16.5-meter, fifteen

(15) new SIT targets at 23-meter, fifteen (15) new SIT targets at 27-meter, and fifteen (15) new SIT targets at 31-meter.

Contractor is required to locate all existing underground utilities (electrical power cables and fiber optic cables) on Oscar 5 (Fire and Movement) Range. All existing underground utilities (electrical power cables and fiber optic cables) shall remain in place. Contractor is required to protect all existing underground utilities during the new construction. The new work includes:

1. This is a 35% electrical design bid documents. Contractor is required to submit the 100% electrical design for the government approval before starting their work.

2. Contractor is required to design the downrange power and data distribution systems for the Oscar 5 (Morris Range).

3. Downrange power distribution and data cable (Fiber Optic Cable) shall be direct buried or run underground in conduit.

4. The direct burial cables must be encased in a bed of sand or select backfill. The method of “Plowing” cables is not recommended.

5. The power and data cables shall be installed in the same trench adhering to the Mandatory Center of Expertise (MCX) required separation distances as listed below. (1) Direct burial data cables and secondary low voltage power cables must maintain a four-inch separation distance from other cable types. (2) Direct burial data and secondary low voltage power cables and medium voltage primary power cables must maintain a twelve-inch separation distance from other types.

6. The National Electric Code has minimum requirements for trenching depths. For the downrange portion of ranges, the minimum cable depths for medium voltage power are 48-inch or local utility requirements.

7. All excavation and roadway work shall adhere to OSHA, DOT, and Flint Electric safety requirements without exception.

8. All trench lines shall be not less than ten feet from the road.

9. The trench route must be clear of trees, bushes, stumps, ledge, large rocks and other impediments.

10. Provide and install two (2), 120/240V, single phase, 225A panels with 42-circuit spaces in the ROC-Tower to support the new target locations at Firing Points 1 through 15 at 7-meter, 10-meter, 12.5-meter, 16.5-meter, 23-meter, 27-meter, and 31-meter.

11. Flint Electric will require to upgrade the existing pad-mounted transformer near the ROC-Tower.

12. Contractor shall upgrade the main distribution panel (MDP) to accommodate installing two new 225A panelboards. It may include replacing existing MDP panel with new panel (field verify the main distribution panel).

13. Contractor shall run the feeders from the pad-mounted transformer to the new MDP panel. Contractor shall connect two new 120/240V, single phase panelboards to the new MDP panel in the ROC-Tower.

14. Contractor is required coordinating with Flint Electric to upgrade the existing pad-mounted transformer. Contractor shall run the new feeders from the pad-mounted transformer to the main distribution panel in the ROC-Tower.

15. Electrical power distribution will conform to the American Electrical Institute (AEI) and Technical Manual (TM) 5-811-1.

16. Single phase primary power will be used and extended to the range site depending on range load.

17. Electrical power distribution shall also conform to the Unified Facilities Criteria UFC 3-550-03FA.

18. The voltage supplied must be maintained within 5% at a frequency of 60 Hz, ±0.5; the design agency shall verify the power supply for each site.

19. Voltage available to each target shall be no less than 95 percent of the target’s rated operating voltage.

20. Indoor equipment operating temperature shall be 70°F to 78°F.

21. Non-operating temperature should be -30°F to +150°F.

22. Humidity should be between 10% to 80% RH non-condensing.

23. Outdoor equipment non-operating and operating temperature shall be -30°F to 140°F. Humidity should be 5% to 95% RH (non-condensing.

24. All conduits and/or cables should enter and exit from the side or rear of the emplacements.

25. The load center (LC) at the emplacement provides feed-thru capability for the secondary direct burial power cable to the next adjoining load center (LC).

26. The designer should consider the means to back feed targets everywhere practical.

27. The designer should consider phase imbalance on utility system when selecting phases to run down range, and the primary feeders should be sized such that each feeder can carry the load of the entire range if one feeder must back feed targets on other ranges.

28. It is extremely important that detailed voltage drop calculations be performed on all target load center feeders from ROC-Tower power panels prior to determining the feeder wire size.

29. The secondary power cable shall be a 600-volt rated, multi-conductor cable. It shall consist of insulated, stranded, copper conductors and a bare, stranded, copper grounding conductor.

30. Each cable shall be enclosed within a tight fitting, heavy, nonmetallic jacket suitable for direct burial.

31. In instances where the secondary power cable enters a NEMA 4, NEMA 4X, or NEMA 6P rated enclosure, the power cable shall be a 600-volt rated multi-conductor cable filled until rounded with non-wicking fillers and be enclosed within a tight fitting, heavy, nonmetallic jacket suitable for direct buried.

32. The size of the conductors terminated in the Load center (LC) or Power Panel (PP) at the targetry emplacement shall not exceed No. 2 AWG.

33. All targetry will be controlled over Ethernet based network.

34. The site Unexploded Ordinance (UXO) survey reconnaissance report shall be reviewed to identify all medium and high UXO risk areas coinciding with all down range electrical trenching layouts.

35. The electrical designer must coordinate with both the civil and UXO removal designers to determine the width of the construction corridors (trenches).

36. Reduce the amount of trenching on down range by placing electrical trenches along course roads and maintenance roads.

37. UXO construction support should be included on the electrical trenching plans.

38. Designer should route the trenches along the access roads and the maintenance trails as much as practical to minimize the disturbance.

39. Concrete encased duct banks must be used whenever trenching underneath road systems.

40. Actual depth of the cables shall be deep enough to prevent damage from projectile penetration.

41. Direct buried cables shall feed emplacements through conduit that is stubbed out 5 feet from the emplacement.

42. Inner-duct is not required at the emplacement but is required to be installed in the Range Operations Center (ROC) entry conduits and in conduits placed in duct bank located beneath roadways and trails.

43. Minimum cover requirements of National Fire Protection Agency (NFPA 70) and Institute of Electrical & Electronics Engineers C2 (IEEE C2).

44. The size of the power cables depends on the number of targets served, circuit voltage drop, and the circuit protective device rating.

45. Operating voltage at the most distant emplacement or target should not be less than 95 percent of the supplying transformer’s secondary voltage.

46. The primary distribution power cable shall be either single conductor or three-conductor (multi-conductor) conforming to ICEA S-93-639/NEMA WC-74 shielded power cable 5-46 KV or ANSI/ICEAS-94-649 concentric neutral cables rated 5-46 KV.

47. The secondary power cable shall be a 600-volt rated, multi-conductor cable.

48. The size of the conductors terminated in the Load Center (LC) or Power Panel (PP) at the targetry emplacement shall not exceed No. 2 AWG.

49. No splicing of cables between the emplacements is allowed.

50. The type of data cable used depends on the range and network design.

51. If metallic conduit is used the armored or shielded jacket is not required.

52. All ranges are required to have two forms of communications for safety during training exercises. These forms of communications do not have to be wired telephone service to the range.

53. The requirement for telephone and/or common user data is a local requirement specific to each range site. It is extremely important to identify telephone and common user data requirements during the planning phase of every range project, or finding will not be available for telephone and common user data. Provide recessed voice and data outlets in the office area if service is available at the range.

54. Do not connect downrange instrumentation and control systems to common user data networks or telephone systems;

downrange instrumentation and control systems are not certified or approved for external connection.

55. Telephone and common user cable systems and equipment must be contained completely separated from down range control systems and equipment. Each system must have its own separate enclosures and/or cabinets, and each must be specifically labeled to indicate the system it serves.

56. All fiber optic cables shall be terminated with the appropriate connectors and tested. All fiber optic cables shall be terminated with “SC” type connectors. All fiber optic cable strands entering a target emplacement shall be terminated in the target emplacement.

57. The fiber optic data cable shall be multi-strand single mode, Outside Plant (OSP) direct burial, Ultraviolet (UV) resistant, single armored, water-blocking, gel-filled, loose-tube, double-jacketed cable.

58. Use only single-mode fiber cabling to interconnect between the ROC and AAR and other ROCA buildings and training buildings and exterior cameras.

59. The CAT5E or better data cable shall be shielded twisted pair (STP), outside Plant (OSP) direct burial, UV resistant, rodent proof, water-blocking.

60. Splicing of either type of cable is allowed only within the emplacement Master Target Data Panel (MTDP), Target Data Panel (TDP), or and enclosures designed for such use.

61. Fiber optic splices shall only be fusion type.

62. CAT5E or better data cable splices shall have a low connection resistance, high insulation resistance, and resistance to moisture and corrosion.

63. All cables shall be terminated with the appropriate connectors and tested.

64. Fiber optic cables shall be terminated with “SC” type connectors.

65. All fiber optic cable strands entering a target emplacement shall be terminated in the target emplacement.

66. CAT5E or better data cable shall be terminated with a data surge protector terminal block.

67. Data cable shall provide an RJ-45 female connector to allow future connection of others via RJ45 connector patch cables.

68. All RJ-45 connectors shall be wired to the TIA/EIA 568-B standard.

69. Provide surge protection circuitry on both ends of CAT5E data cables installed between ROC and AAR, ROC and target emplacements, between two target emplacements, and between control pedestals and remote communication enclosures (UAC).

70. Most target emplacements will have two data surge protectors installed in the MTDP or TDP, one for each cable entering the emplacement.

71. The device shall comply with UL 497 or UL 497B as applicable.

72. Surge protection devices in target emplacements shall be auto-resettable and shall not contain fuses.

73. The surge protection device shall have a clipping voltage between 12-20 volts.

74. Surge protection devices in the master target data panel and target data panel shall be limited in physical size such that they can be installed in a 5” wide X 6” long X 6” deep space.