Technical Questions.pdf

tlSolicitation # 36C77622B0055 EHRM Infrastructure Upgrade – Ft. Meade Technical Questions and VA Response Tracking Sheet

Responses are in Red

ITEM

NO.

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QUESTION

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QUESTION GOVERNMENT RESPONSE

1. 1-09-23 2-03-23 Will the site work require a difference wage scale than the building work?

All applicable wage rates are contained in Attachment 16, which was posted with the solicitation.

2. 1-09-23 2-03-23 Do the telecommunications faceplates need to be stainless steel or nylon to match electrical plates, if nylon what color?

Communications faceplates shall be stainless steel.

3. 1-09-23 2-03-23 Plan TK-002 detail 2 calls for Ortronics faceplates/blanks/bezel, is this the only acceptable manufacture?

Alternate manufacturer will be approved on an as equal basis

4. 1-09-23 2-03-23 Is there a color schedule for the communications cabling and jacks for this campus? (example: green-data, white-voice, orange-WAP, yellow-camera)?

Contractor to coordinate colors with VA and A/E during submittal process.

5. 1-09-23 2-03-23 Please provide the locations of the existing Johnson Controls equipment that the new TR (telecom room) cameras need to be cabled to.

Contractor to field coordinate location with VA and A/E.

6. 1-09-23 2-03-23 Please identify any TRs that need fiber and network switch for new camera.

No new network switch will be necessary.

7. 1-09-23 2-03-23 If the new camera in the new TR requires fiber optic cable, can a pair of the new fiber infrastructure cable be used or does it need to be a separate cable.

Contractor to coordinate with VA.

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8. 1-09-23 2-03-23 Does the contractor need to provide Cat6A patch cords for the workstation side, patch panel side or both for each new run?

Contractor shall supply patch cords for both workstation outlet location and patch panel locations. Contractor to supply (2) patch cords for each horizontal cabling connection with a total quantity of 50% of the project total horizontal connections.

9. 1-09-23 2-03-23 Please provide a copy of the ‘VA infrastructure standard for telecommunications spaces’ referred to in the specifications.

Will provide to the contractor.

10. 1-09-23 2-03-23 Please provide pictures of exiting manholes and a list of what exiting cables (and use) pass through each.

Information is not available. Contractor will be responsible for field coordination with VA and A/E during construction.

11. 1-09-23 2-03-23 Building 85, sheet 085-tn-011, general note B, please provide a plan, to scale, with the route and raceway requirements between buildings 85 and 359.

See civil drawings.

12. 1-09-23 2-03-23 Plan 148-tn-013, most of the ‘a114’ designated data cables are over distance. Please clarify what TR these need to be cabled to.

All Sector A communications cabling should be routed to A114A. All sector B communications cabling should be routed to C106A.

13. 1-09-23 2-03-23 Patch panel schedules for rack #2 room 169 are not shown on the plan sheets tk-34.

Patch Panels for rack 1 in Room169 of B113 show the proper cabling.

14. 1-09-23 2-03-23 Sheet TK-042 verify quantity of cables per TR and patch panel, there are some discrepancies.

New Patch Panel schedules and floor plans in TK series indicate the quantities of cables per TR correctly.

15. 1-09-23 2-03-23 Plan tk-042, patch panel schedules for rack #2 panels in these rooms are not included on the plan sheets: rooms 329 bld 145, room a114a bld 148, room c106a bld 148

No panel schedules for rack #2 in the following 329A B145, A114A B148 or C106A B148.

Coordinate with floor plans for cabling notation.

16. 1-09-23 2-03-23 Plan sheet 00-gi-000.2, project description does not list Buildings 85, 72 or 359

These buildings are not in scope.

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17. 1-09-23 2-03-23 Plan sheet TS-001, why is building 72 hatched if there is not work in that building?

Building 72 is not in scope.

18. 1-09-23 2-03-23 Sheet 359-tn-011, is the conduit for the new fiber backbone installed in new conduit? Plan TS-001 does not show the route, what plan does?

See civil drawings.

19. 1-09-23 2-03-23 Sheet 046-tn-0b1, there is no enlarged plan of the new TR, is any cable tray, plywood, door access or sleeves required?

Provide only new work as indicated on plans.

20. 1-09-23 2-03-23 Sheet 040-tn-011, there is no enlarged plan of the new TR, is any cable tray, plywood, door access or sleeves required?

Provide only new work as indicated on plans.

21. 1-09-23 2-03-23 Sheet 050-tn-011, there is no enlarged plan of the new

Provide only new work as indicated on plans.

22. 1-09-23 2-03-23 There is ‘TD’ demo sheet for building 110, is there any demolition work for the telecom? Where is the exiting TR for this building?

Only demolition would be the removal of the existing fiber after new fiber is installed.

23. 1-09-23 2-03-23 Sheet 110-tn-011, there is no enlarged plan of the new

Only new work is as shown on 110-TN-011.

24. 1-09-23 2-03-23 Please provide a floor plan for building 144 with location of exiting telecom rack?

Only new fiber is being installed here. Field coordinate exact TR location.

25. 1-09-23 2-03-23 Please provide a telecommunications site plan (to scale) that shown the sidewalks, roads and other utilities.

See civil plans.

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26. 1-09-23 2-03-23 Building 137, the exiting telecom enclosure and backbone cables is not in the location shown on the plans, please clarify.

Location shown is the new location of TE.

27. 1-09-23 2-03-23 Who is responsible for providing air monitoring and final air clearances for this project.

The contractor is responsible for air monitoring.

Refer to specifications including but not limited to 015719 Temporary Environmental Controls, 028200 Asbestos Abatement, & 028333.13 Lead Based Paint Removal and Disposal.

28. 1-09-23 2-03-23 How is mastic removal to be performed. This is a means and method question to be resolved by G.C. and subcontractors.

29. 1-09-23 2-03-23 Can the date for sending in question be extended? We are working our way through the documents and with only two days between the site walk and questions dead line. We are requesting more time to as question

No extension to questions due date

30. 1-09-23 2-03-23 Please provide the name of the company that provide the Fire Alarm panels and servicing at this facility?

Coordinate with VA.

31. 1-09-23 2-03-23 Please provide the name of the Access Control & Camera Company providing service to this facility?

Coordinate with VA

32. 1-09-23 2-03-23 Please provide the name of the BAS/Controls Company providing service to this facility?

Coordinate with VA

33. 1-09-23 2-03-23 Spec section 260573 calls for a Coordination Study. To what extent is this to be done? Can you provide the existing coordination study data?

Contractor to provide coordination study for all new work with existing emergency and normal systems touched by work. coordinate with VA after Bid award for existing study data

34. 1-09-23 2-03-23 Spec Section 264100 Lightning protection. Is there any lightning protection needed on this project? If so where?

Lightning protection is not required

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35. 1-09-23 2-03-23 In the 26 and 27 race way spec sections. Is EMT conduit considered ridged steel conduit? Can EMT conduit be used for the data stub ups and installation of the cat # and fiber cabling?

EMT is not Rigid Steel Conduit. EMT may be used in any interior stub ups but shall not be used

36. 1-09-23 2-03-23 Are all data drops in conduit to a cable tray or are some free air?

Contractor may route cabling in free air when in accessible ceiling. Conduit shall be provided in any areas where there is hardlid or subject to damage.

37. 1-09-23 2-03-23 Are we able to reuse the existing cable tray?

Contractor may re-use existing cable tray so long as there will be no interruption of telecommunications during installation of new cabling or demolition of existing cabling.

38. 1-09-23 2-03-23 Is the new fiber to be in conduit or can it be installed in existing cable tray?

New fiber must be installed in innerduct and innerduct may be routed in existing cable tray.

39. 1-09-23 2-03-23 Building 90 has work required in the loft or attic space.

There are no plan sheets showing this area or work required. Please provide a plan?

No loft or attic plan is available at this time.

40. 1-09-23 2-03-23 Building 88 new data room location has 2 existing disconnects on the east wall that may be in the way of the new walls. See attached

Contractor to demo existing busway and feeders back to serving panel. Relocate existing boxes to above existing door plan south of new walls.

Extend existing conduit and conductors to new box location and reconnect all existing devices to remain.

41. 1-09-23 2-03-23 There is no one-line for the new panel in building 296.

Please provide one-line with conduit and wire sizes.

One-Line is not available at this time. 296-T1 is subfed from existing panel 296-A. Provide conduit and conductors from existing panel to new in accordance with feeder schedule 125-4 located on sheet EK-002.

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42. 1-09-23 2-03-23 The note #1 on sheet T296-ED-011 call to relocate conduit for new addition. Do both these conduits feed panel 296-A?

Contractor to field verify.

43. 1-09-23 2-03-23 Spec section (270533 3.1.D.1.a) Can EMT conduit be used in the furred or suspended ceilings and walls?

EMT can be used in the furred or suspended ceilings.

44. 1-09-23 2-03-23 Will we be able to reuse the existing cable trays in the building?

telecommunications during installation of new cabling or demolition of existing cabling.

45. 1-09-23 2-03-23 For plans sheet that call for cable to be in conduit and there is cable tray. Can the conduit be run to the tray and the existing tray be reused?

telecommunications during installation of new cabling or demolition of existing cabling.

46. 1-09-23 2-03-23 There is cable tray in the attics and basements of buildings 46,53,89,90, 113. Can these be shown on the plans sheets?

Contractor shall field verify the listed cable trays.

47. 1-09-23 2-03-23 The AE-Sheets notes talk about new cable tray being installed. The TN sheet are not showing any new cable tray. Please advise (AE-90, AE-146 key not 23-13

Now new cable tray in buildings noted in comment.

48. 1-09-23 2-03-23 Sheet TS-001 note # 6. Does this note apply to the dashed line between building 145 and 148? I am not finding these conducts on any other plans sheet for the extension inside the buildings

Yes this applies to the dashed line between the two buildings. See sheet 145-TN-015 and 148-

TN-011.

49. 1-09-23 2-03-23 There is no underground conduit spec in div 27. Should we use the 26 spec for any UG conduits pertaining to Div 27?

Yes. Division 26 specification shall be used for any underground conduits for Div 27.

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50. 1-09-23 2-03-23 Would it be possible to boring conduits? What would be the conduit type ect.?

Boring is not acceptable. Underground conduit must be concrete encased.

51. 1-09-23 2-03-23 Are there existing conduits between buildings 72 and 359 or 85 and 359? If not was is need?

Will need to coordinate in the field. Assume providing new for bid purposes.

52. 1-09-23 2-03-23 Signage—Specs calls out 2/90 Signs, yet they have no previous work on campus and specs call to match existing. There is no signage schedule or type of design to match. Please advise.

2/90 Sign Systems is basis of design. Contractor to provide approved equal manufacturer that serves Fort Meade area. Signage is to match detail as shown in page 101400-5 of specifications.

53. 1-09-23 2-03-23 Concrete—Does concrete in spec have to be light weight?

No concrete does not have to be light weight.

54. 1-09-23 2-03-23 HVAC—Lead times on ceiling mounts are 40+ weeks.

145-CRAC-1,2, and 3 indoor units are 53 weeks. Pumps and condensers lead times are 47 weeks. Does the VA intend to issue an admin NTP to procure materials with these long lead times?

VA to provide final response. Typically, no specific NTP is provided for product procurement, however the initial phase of construction is the submittal phase. We would recommend is that the CRAC units be among the first submittals provided for A/E review & approval to get those products reviewed, approved, & purchased to lock their place in the manufacturer’s queue.

55. 1-09-23 2-03-23 Electric Key Switch-- Per Sheet EK-014, detail #1, please explain the intent behind the ‘electric key switch’ to be mounted on the inside of the door.

Purpose is to lock out power from power to exit device.

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56. 1-09-23 2-03-23 For new PACS doors to be added:

a. Are these to be extended off of existing

PACS Panels if sufficient spare terminal slots are available or are new PACS panels to be provided?

b. If new PACS Panels are required, where are these to be located, in each respective TR closet or other? Each new PACS panel will required a dedicated 120VAC feed and one (1) data drop.

These are to be extended from existing if sufficient spares are available.

If new are required they would be located in the TR spaces.

57. 1-09-23 2-03-23 Are the modifications noted in Demolition General Note #2 (TYP) acceptable using the existing CPVC piping?

-The Spec does not allow for CPVC to be used.

Please provide sheet reference.

58. 1-09-23 2-03-23 Please detail the drain-down procedures for the complex.

Contractor will need to coordinate any required system drain-down with VA mechanical staff for specific locations.

59. 1-09-23 2-03-23 What plans sheet and room number is 148-UPS1-T1 located? Is it miss labeled as 148-N1-T1?

Yes it is mislabled as 148-N1-T1

60. 1-09-23 2-03-23 Panel schedule 148-EQ1-T1 on sheet EK011 shows a 225 amp the one-line shows it to be 300 amp breaker.

Should this be a 400 amp rated panel?

The rating of the panel as shown on EK011 is incorrect and shall be a 300 amp rated bus.

61. 1-09-23 2-03-23 Panel Schedule 148-UPS1-T1 crk # 13,15 should be ZP- F108-1A not 1B

Acknowledged.

62. 1-09-23 2-03-23 Would it be possible to mount panels 148-UPS1-T1 and 148EQ1-T1 in room 148-AM101? They could be mounted directly under their respective transformer in the same location. This would save conduit feeders

Panels shall be located as shown on plans.

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63. 1-09-23 2-03-23 Sheet EK002 key note # 4 is pointing to a panel, the note does not apply. Please advise?

Delete referenced flag note from that panel.

64. 1-09-23 2-03-23 Sheet 145-ED-012 is panel A1 also being relocated?

There is no key note or plan not indicating this?

Panel A1 is to remain.

65. 1-09-23 2-03-23 Sheet 145-ED-012 detail # 2 show relocating the ups cabinets. Where these being relocated too and what will they be feeding?

They are being relocated to UPS 129. See sheet

145 EP-012

66. 1-09-23 2-03-23 Sheet EK-008 Panel 113-EQBB-T1 Should be 113- EQB-T1 as per the riser and the plans.

Acknowledged.

67. 1-10-23 2-03-23 Is there a plans sheet that has a schedule for the fixture types? We cannot find anything. My suppliers are not able to quote if there is no info…

Type A: Lithonia #CLX-L48-7000LM-SEF-FDL-

MVOLT-EZ1-40K-90CRI

Type B: Lithonia #2BLT2-40L-ADP-EZ1-LP840 Type C: Lithonia #2BLT4-48L-ADP-EZ1-LP840

Or approved equal.

68. 1/10/23 2-03-23 On page 00-GI-008 Fire Protection Notes. Clean Agent System Notes #6 states “THE CLEAN AGENT

SYSTEM WILL BE PROVIDED TO PROTECT

ABOVE AND BELOW THE RAISED FLOOR.”

Between the fire protection layout of the room and the architectural plan, I am not finding any information stating there will be a raised floor in Bldg. 145 MCR room. Could you please clarify?

There is no raised floor in this project. Provide protection above concrete floor in MCR.

69. 1/10/23 2-03-23 Sheet 145-EP-013 note # 1 does not apply. Please Advise.

Remove reference to note 1.

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70. 1/10/23 2-03-23 Should all TR room have EM lighting? If so you will want to check the plans as all do not show EM lighting.

TR’s will not have Emergency lighting.

71. 1/10/23 2-03-23 Sheet 113-EP-001 detail 2, there appears to be a square box just outside the TR room B01. Is this a light fixture?

If so what type and what circuity and control?

Yes this is a light fixture. This shall be a type B 2x2 recessed fixture Lithonia #2BLT2-40L-ADP- EZ1-LP840 or approved equal.

72. 1/10/23 2-03-23 Sheet 053-EP-0B1- the note # 1 for the tag equipment tag RK-TCB1-1A & B need to be a three pole breaker??

Yes. See EK-014 for additional information

73. 1/10/23 2-03-23 Sheet 088-EP-011 general note D is calling for details to be seen on sheet TJ-004, this sheet does not exist.

Please Advise.

Referenced sheet is incorrect. Correct reference is

EK-014.

74. 1/10/23 2-03-23 Sheet 088-EP-011 sheet note #1 for tag 88-IU-1, Should this be a 2 pole breaker?

It is listed in the schedule and in sheet note 1 to be a 2-pole breaker.

75. 1/10/23 2-03-23 Sheet 089-EP-011 one-line is call for the new breaker in MDP to be a 60/2 pole. Should this be a 60/3 pole breaker?

Yes this should be a 3-pole breaker see also panel schedule for 89-A on sheet EK-007

76. 1/13/23 2-03-23 Sheet TK-039 shows building 88 with a telecom enclosure, plan sheet 088-tn-011 shows building 88 with a Channel Rack with vertical managers and TK-042 lists building 88 with a channel rack with no vertical managers. Please clarify.

Provide channel rack with vertical managers.

77. 1/13/23 2-03-23 Building 90 & 110 Rack elevations is missing.

See typical rack elevations for Wall Cabinet, 1 & 2 rack elevations.

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78. 1/13/23 2-03-23 Building 113 room B01 elevation(TK-040) shows one channel rack and 2 vertical managers, the schedule(TK-

042) lists 2 racks in this room, and the floor plan ((113- TN-002) only shows 1 racks and 2 managers the same size. Also the patch panel count on the elevation does not match the schedule. Please clarify.

Patch panel count is governed by patch panels shown on patch panel sheets. Provide (1) channel rack with two vertical wire managers.

79. 1/13/23 2-03-23 Sheet 113-tn-013, what is note 7 pointed at both racks if there is only one copper backbone?

Provide one on either rack. Remove one note 7 reference.

80. 1/13/23 2-03-23 Is Fiber runway required in the MCR? it is not shown on the plans

Yes fiber channel is required. It shall be provided above all basket tray shown on drawing.

81. 1/13/23 2-03-23 Sheet 145-tn-011, detail 2, why is not 9 pointing to both racks if there is only 1 copper backbone cable?

Provide one on either rack. Remove one note 9

82. 1/13/23 2-03-23 Sheet 145-tn-021, detail 3 & 4, why is not 8 pointing to both racks if there is only 1 copper backbone cable?

Provide one on either rack. Remove one note 8

83. 1/13/23 2-03-23 Sheet tk-041 rack elevations for building 147 is missing

Rack is existing. Contractor to field verify and coordinate with VA and A/E for location of new equipment.

84. 1/13/23 2-03-23 Rack elevation on sheet tk-041 shows building T296 as a wall cabinet, the schedule on tk-042 lists a channel rack and the plan t296-tn011 shows a channel rack, please clarify

Channel rack as shown on sheet T296 shall be provided.

85. 1/13/23 2-03-23 Why do some of the racks and cabinets that only have ‘A’ side fiber need 2 PDUs?

Fiber does not dictate the PDU quantity. It is a requirement of the ISTS that each rack be provided with (2) PDU each.

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86. 1/13/23 2-03-23 Sheet TK-042, what does this schedule represent? Is the Cable Raw Data, the exiting cables? Is the Cable Requirements the existing patch cords? Neither of the schedules correspond with the new cable quantities.

This correlates to the new patch cord quantities required.

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87. 1/14/23 2-03-23 What category is the 25 pair copper backbone, Cat3 or Cat5e?

Cat 5e multipair

88. 1/14/23 2-03-23 Please identify what new 25 pair backbone cables need over current surge protectors.

Any interbuilding backbone 25-pair is required to have fused PETs at each end.

89. 1/14/23 2-03-23 Sheet TS-001, note 5, where does the exiting fiber originate from, where does it need removed to?

It is believed to originate from the existing data center location.

90. 1/14/23 2-03-23 Sheet TS-001, what is the scope of work for removal of existing copper and fiber cables in the exiting site duct banks? Is there an existing cable schedule for the site cable runs?

No schedule is currently available. All abandoned existing cabling shall be removed from existing duct bank.

91. 1/14/23 2-03-23 What existing backbone (fiber and cooper) cables need removed in each building?

All existing copper and fiber cables being replaced need to be demolished. Contractor to field verify with VA for any fiber optic cabling to remain.

92. 1/14/23 2-03-23 Sheet TK-043, where/what do the new 25 pair copper cables terminate at in the exiting PBX room?

All new copper backbone cabling to land on patch panels.

93. 1/14/23 2-03-23 Sheet 145-tn-015, why is the voice backbone shown in the new MCR instead of the exiting PBX room?

145-TN011 Shows Voice in the PBX room.

94. 1/14/23 2-03-23 Do any of the new copper or fiber backbone cables need new innerduct in the building or in exterior duct bank?

Fiber shall be routed in innerduct. Exterior new duct bank shall have maxcell fabric innerduct installed.

95. 1/14/23 2-03-23 Will new conduits be installed for the new copper or fiber backbone cables?

Yes. See TS-001

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96. 1/14/23 2-03-23 Sheet TS-001, notes 3 and 6, the civil sheets do not show details on the new duct back, please advise.

All new conduit ductbank routed underground shall be encased in concrete with a minimum strength of 3000 PSI.

97. 1/14/23 2-03-23 Sheet 148-tn-011, fiber and voice cable routing notes contradict other plan sheet for routing

Contractor to field coordinate routing with A/E and VA during construction.

98. 1/14/23 2-03-23 Sheet 113-tn-001, fiber /copper routing notes to not correlate with other plans

Contractor to field coordinate routing with A/E and VA during construction.

99. 1/14/23 2-03-23 The specifications do not cover the size of Rack mounted ups units listed on the plans (3500va & 1920 va)

1920 units to be Vertiv GXT5-2000LVRT2UXL 3500 units to be Vertiv GXT5-

5000MVRT4UXLN

Or approved equal

100. 1/14/23 2-03-23 Please provide a spec for the horizontal rack mounted PDUs for the Telecom enclosures.

Rack mounted horizontal PDU shall be APC #AP9560 or approved equal.

101. 1/14/23 2-03-23 Are Zone PDUs required in the CR telecom racks or server cabinets?

Zone PDUs are not required in the racks or cabinets in the CR.

102. 1/14/23 2-03-23 Are any of the equipment distribution cabinets in the CR High Density?

No High Density Racks.

103. 1/14/23 2-03-23 SHEET TK-042 new telecom eqp schedule lists some TR’s getting double the fiber compared to the Fiber riser.

(Building 145 TRs 122b, 229a, 329 – as example)

The Fiber one-line shown on sheet TK-029 shall take precedence.

104. 1/14/23 2-03-23 SHEET TK-042 new telecom eqp schedule lists buildings T171, T296 & 359 getting B side fiber, sheet TK0029 fiber riser calls for A side fiber

The fiber one-line shall take precedence on sheet

TK-029.

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105. 1/14/23 2-03-23 SHEET TK-042 new telecom eqp schedule, the note about OS1 fiber does not match the specs, what buildings require OS2 /OS1 fiber?

The Fiber One-Line shown on sheet TK-029 shall be utilized for determination of required fiber optic cable types and quantities.

106. 1/16/23 2-03-23 Division 26 -There is new lighting going in but no fixture schedule or manufacturer model number for the new lights. Can this information be issued?

Type A: Lithonia #CLX-L48-7000LM-SEF-FDL-

MVOLT-EZ1-40K-90CRI

Type B: Lithonia #2BLT2-40L-ADP-EZ1-LP840 Type C: Lithonia #2BLT4-48L-ADP-EZ1-LP840

Or approved equal.

107. 1/16/23 2-03-23 Division 28 -The technology drawings state that the access control is by the access control integrator. Are we responsible for the access control integrator pricing? Or is the access control integrator working directly for the VA? If we are to carry it, who is the access control integrator?

General Contractors sub is responsible for pricing.

108. 1/16/23 2-03-23 Sheet EK.006 has a panel schedule for building 72.

There is no plan sheet showing any electrical work to be done in this building. Please provide more info?

Building 72 is not within scope. Disregard panel schedule.

109. 1/16/23 2-03-23 Sheet 050-EP-011 sheet note # 1 call for breaker in existing panels. There are not panel schedules in the document for these panels. Please provide

There are spare breakers available to be replaced with new in existing panels as listed in plan note.

Contractor to replace as indicated during construction.

110. 1/16/23 2-03-23 Sheet 090-EP-011, sheet notes do not list out the breaker like the other previous sheets?

Flag note 2 indicates contractor to extend existing circuits to connect.

111. 1/16/23 2-03-23 Sheet 113-EP-001, sheet note is calling out a detail to be on EK-010. These details do not exist. Please advise?

Note should reference detail 1 on sheet EK-014.

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112. 1/16/23 2-03-23 Sheet 145 EP-012, detail #4, Should the switches in OIT 137 be 3-ways?

Yes they should be 3-way.

113. 1/16/23 2-03-23 Sheet 145-EP-012, detail #2, Please define lights that are to be EM and on all the time, and witch lights are to be on zone a & b?

There are no constantly hot lights within this space. EM fixtures shall be provided with emergency ballast at the following locations.

Total of (6) type A fixtures. (1) each at the plan NW, NE and SE corner for a total of (3). North type A fixture in-between Row Q and Row K.

Type A fixture adjacent flag note 2 at ramp. Type A fixture at west most entrance to Data Center.

All type A fixtures west of row H are to be circuited to switch a and all other fixtures form Row H east shall be on switch b.

114. 1/16/23 2-03-23 Sheet 146-EP-011, the telecom rack recp tag # RK-108- 1A is shown to be fed from panel UPS-A with #12’s.

This panel is over 600’ away. Would suggest larger wire or a panel that is closer. Please advise

Revise wire size to be #10 AWG

115. 1/16/23 2-03-23 Would it be possible to extend the bid date on this project?

See amendment

116. 1/19/23 2-03-23 Sheet EK-001 is a site plan with a scale shown on the drawings at 1/4”= 1’. What is the actual scale?

Scale is 1”=50’

117. 1/19/23 2-03-23 Sheet 148-EP-011, please look at the Conduit / Conductor Size column in the equipment schedule. It does not seem to match the rest of the plans?

Conduit quantities as indicated by (2) should only be (1) quantity.

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118. 1/19/23 2-03-23 Panel 146-EQ1-T1, Is shown on Sheet 146-EP-011 in room 108, there is a schedule for this panel on Sheet EK-

011. I am not able to find a feed on any one-line or listed in any panel schedule. Where is this panel to be fed from?

Panel is to be subfed from Panel 105A ckts 38,40,42 located in Rm 100. Provide 100/3 Breaker in existing panel 105A spare space.

Provide conduit and conductors per feeder schedule 125-4 from existing panel 105A to new panel 146-EQ1-T1.

119. 1/19/23 2-03-23 Sheet 296-EP-011 has a new panel 296-T1, Would it be possible to get a one-line on this sheet for this panel?

conduit and conductors from existing panel to new in accordance with feeder schedule 125-4 located on sheet EK-002.

120. 1/19/23 2-03-23 Panel 113-EQDP-T1 (sheet EK-012), panel schedule is calling for a 225 amp MLO panel, the one-line (EK-002) is showing a 300 amp breaker and 300 amp feeder.

Please advise

Panel is shown on EK-008. Provide as 300 amp minimum bus rating.

121. 1/19/23 2-03-23 Sheet EK-008 panel schedule 113-UPSDP-T1 is shown as a 225 amp MLO panel, sheet EK-002 one-line is showing this panel a 250 amp Main Breaker. Please advise

Provide with 225 main breaker.

122. 1/19/23 2-03-23 Sheet EK-002 Shows a disconnect if front of panel113- UPSDP-T1, the panel and transformer are in the same room, Would this disconnect be needed?

Disconnect is not required.

123. 1/19/23 2-03-23 Sheet EK-009 panel schedule 145-EQ1-T1 is shown as a 100 amp MLO panel, sheet EK-003 one-line is showing this panel as a100 amp Main Breaker. Please advise

Panel shall be provided with 100/3 main breaker as indicated on one-line.

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124. 1/19/23 2-03-23 Sheet EK-010 panel schedule 145-EQ2-T1 & 145-EQ3- T1 are shown as a 100 amp MLO panel, sheet EK-003 one-line is showing this panel as a 100 amp Main Breaker. Please advise

Panels shall be provided with 100/3 main breakers as shown on one-line diagram.

125. 1/19/23 2-03-23 Sheet EK-012 panel schedule 148-UPS1-T1 is shown as a 100 amp MLO panel, sheet EK-004 one-line is showing this panel as a 125 amp Main Breaker and a 125 amp feeder. Please advise

The bus rating is incorrectly shown on EK-012.

Bus rating of panel shall be a minimum of 125 amp with 125 amp main breaker.

126. 1/19/23 2-03-23 Sheet EK011 panel schedule 148-EQ1-T1 is shown as a 225 amp Main breaker, Sheet EK-004 one-line is showing this panel as a 300 amp main breaker, Please

127. 1/20/23 2-03-23 Sheet EK-002 one-line for panel TDP-1, The 300 kva trans is called out to be a 4160v primary with a 277/480 secondary. The Ft Meade campus was converted in 2014 over to a 12,470v primary system with A & B loop to each trans.

a. The primary voltage for this trans should be 12,470v

b. Should this trans have the dual A & B primary feeds?

Transformer should read 12.47kV and should have both A & B feeds. See plan notes on sheet EK-001 for additional information.

128. 1/20/23 2-03-23 Sheet EK-001 is a site plan with a scale shown on the drawings at 1/4”= 1’. What is the actual scale?

Scale is 1”=50’

129. 1/20/23 2-03-23 Sheet 148-EP-011, please look at the Conduit / Conductor Size column in the equipment schedule. It does not seem to match the rest of the plans?

Conduit quantities as indicated by (2) should only be (1) quantity.

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130. 1/20/23 2-03-23 Panel 146-EQ1-T1, Is shown on Sheet 146-EP-011 in room 108, there is a schedule for this panel on Sheet EK-

011. I am not able to find a feed on any one-line or listed in any panel schedule. Where is this panel to be fed from?

Panel is to be subfed from Panel 105A ckts 38,40,42 located in Rm 100. Provide 100/3 Breaker in existing panel 105A spare space.

Provide conduit and conductors per feeder schedule 125-4 from existing panel 105A to new panel 146-EQ1-T1.

131. 1/20/23 2-03-23 Sheet 296-EP-011 has a new panel 296-T1, Would it be possible to get a one-line on this sheet for this panel?

conduit and conductors from existing panel to new in accordance with feeder schedule 125-4 located on sheet EK-002.

132. 1/20/23 2-03-23 Panel 113-EQDP-T1 (sheet EK-012), panel schedule is calling for a 225 amp MLO panel, the one-line (EK-002) is showing a 300 amp breaker and 300 amp feeder.

Please advise

Panel is shown on EK-008. Provide as 300 amp minimum bus rating.

133. 1/20/23 2-03-23 Sheet EK-008 panel schedule 113-UPSDP-T1 is shown as a 225 amp MLO panel, sheet EK-002 one-line is showing this panel a 250 amp Main Breaker. Please

Provide with 225 main breaker.

134. 1/20/23 2-03-23 Sheet EK-002 Shows a disconnect if front of panel113- UPSDP-T1, the panel and transformer are in the same room, Would this disconnect be needed?

Disconnect is not required.

135. 1/20/23 2-03-23 Sheet EK-009 panel schedule 145-EQ1-T1 is shown as a 100 amp MLO panel, sheet EK-003 one-line is showing this panel as a100 amp Main Breaker. Please advise

Panel shall be provided with 100/3 main breaker as indicated on one-line.

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136. 1/20/23 2-03-23 Sheet EK-010 panel schedule 145-EQ2-T1 & 145-EQ3- T1 are shown as a 100 amp MLO panel, sheet EK-003 one-line is showing this panel as a 100 amp Main Breaker. Please advise

Panels shall be provided with 100/3 main breakers as shown on one-line diagram.

137. 1/20/23 2-03-23 Sheet EK-012 panel schedule 148-UPS1-T1 is shown as a 100 amp MLO panel, sheet EK-004 one-line is showing this panel as a 125 amp Main Breaker and a 125 amp feeder. Please advise

The bus rating is incorrectly shown on EK-012.

Bus rating of panel shall be a minimum of 125 amp with 125 amp main breaker.

138. 1/20/23 2-03-23 Sheet EK011 panel schedule 148-EQ1-T1 is shown as a 225 amp Main breaker, Sheet EK-004 one-line is showing this panel as a 300 amp main breaker, Please

139. 1/23/23 2-03-23 Sheet 145-AD-201 does not have any information on the existing ceiling for MCR 132 which looks to have an existing old acoustical ceiling. The reflected ceiling plan for MCR 132 on sheet 145-AE-301 shows a 10’ gyp.

Ceiling. What type of ceiling is going to be in this room?

1. Will the ceiling elevation be 10’ from finished floor?

2. What is/will be the measurement of the plenum space?

3. Is there a building section detail for this room?

MCR 132 has an existing plaster ceiling and it is to remain in place.

1. Ceiling elevation is to remain existing;

adjacent ceiling over ramp is to be 8’-2” as noted in detail 2/145-AE-301.

2. There is no plenum space in MCR 132.

3. Sections through room are shown in sheet

145-AE-601

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140. 1/24/23 2-03-23 Ref: Bldg 145 - MCR Plan

1. Sheets CG100 and 145-AD-201 show the MCR concrete and screen wall north of Building 145.

However, Sheet 145-SF100 and 145-AE-301 display the MCR concrete and screen wall to the east of building

145. Please confirm the location of the MCR concrete and screen wall and update the sheets accordingly.

MCR’s utility yard is to be located at east of the building as indicated in 145-AE-201 and 145-AE- 301; contractor is to familiarize himself with the location noted in above sheets and bid accordingly. Clarification of drawings will be accommodated after contract award.

141. 1/24/23 2-03-23 Asbestos & Lead Abatement

1. Are we to base the costs for the hazardous material removal on the quantities provided in the Hazardous Material report by AET? What if it is determined the quantities are more or less?

Provide base bid cost as per quantities noted on drawings.

If actual quantities needing abatement varies, notify the COR as these will be addressed on a case by case basis.

142. 1/25/23 2-03-23 Drawing EK-002 says the UPS must be N+1 redundant, since only 1 feed to the UPS system is shown (multiple feeders are required for multi-module systems) advise what capacity is required with or without redundancy.

Examples – a 200kva 480V system would have (4) 50KVA power modules, and failure of any single module would reduce capacity by 50kva until repaired. A 100kva 208V system would have (5) 20kva power modules, failure of any single module would reduce the capacity by 20kva until repaired.

Disregard the reference to the paralleling cabinet and N+1 configuration. Provide single UPS as specified as indicated on drawing EK-002.

143. 1/25/23 2-03-23 Drawing EK-002 states there is a paralleling cabinet input in the UPS footnotes. We only see a single input UPS configuration the in the drawing. No paralleling cabinet from what we can see.

Disregard the reference to the paralleling cabinet and N+1 configuration. Provide single UPS as specified as indicated on drawing EK-002.

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144. 1/25/23 2-03-23 Drawings of the busway have conflicts between 145-EP- 100 and 145-EP-012, please have the customer specify the number of tap-off boxes and the ampacities of the busbar needed for this design. If we’re going just off drawing 145-EP-012, and considering (2) total tap-off boxes to each rack shown. We’re counting a total of (40) tap-off boxes are needed for all the busway runs. Please advise.

All (6) Busways shall be 225A.

Base your count at 40 for the tap-off boxes.

Circuit breakers trip rating for busways are as follows:

Panel UPS-A Bus A-1: 125A/3P Bus A-2: 225A/3P Bus A-3: 225A/3P Panel UPS-B Bus B-1: 125A/3P Bus B-2: 225A/3P Bus B-3: 225A/3P

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