NNG16591912E_NASA_Response_to_Industry_Questions_1_to_93.pdf

WALLOPS SOUTH ISLAND ELECTRICAL DISTRIBUTION UPGRADES

IFB NNG16591912E

INDUSTRY QUESTIONS

1. Drawing EOL-2 Note 2 middle of page (typical for each manhole) Question is what is typical?

NASA Response: Disregard the EOL-2 Note.

2. Specifications list many cut sheets, submittal drawings that look proprietary. Question are they proprietary?

NASA Response: The only proprietary components are the G&W two position switches.

3. Drawing UD-7 Junction Cabinet Schedule, last column on right. (Install) Question is that contractor furnished?

NASA Response: Yes.

4. Drawing UD-7 Switch Gear Schedule, Drawing states for new pad mount switches to retrofit existing pad. Drawing UD-4 Detail One shows new precast for vault for new pad mount switches.

Question retrofit existing pad or install new switch vault?

NASA Response: Retrofit where existing pads are shown. Add new pad where no existing pad is shown.

5. Specification Section 337002.0010 Electrical Distribution System Underground Page 12, Paragraph 2.4.1.6 Neutrals, (Requires a Neutral be pulled with the 15kv cable) Drawing POL-3 only show the 15kv cable sizes and quantities, no Neutral Shown. Question: Is a neutral require if so what size.

NASA Response: Refer to callouts in drawing PE pages.

6. Drawing PCP-1: Transformer TR-X-85 – addressing the vault specified on note 3, UD-3 – will the same transformer vault used on north island project be acceptable?

NASA Response: Refer to drawing UD-2 for vault detail.

7. Drawing PCP-2: G/S WI-11 – Discrepancy between PCP-2, and PE-2 – please specify if existing switch is to be re-used, or a new switch installed as detailed on PCP-2.

NASA Response: Refer to drawing page PED-1 for clarification of relocation of existing switch to new location as further verified in the switch schedule.

8. Drawing PCP-2: G/S WI-12A – Is existing switch in place at location to be re-used?

NASA Response: Note: On drawing page PCP-5 existing switch callout G/S WI-8 should be G/S W-

8. Switch at existing manhole 7 to remain in place. Refer to switch schedule. There is no existing switch on manhole 2. G/S WI-8 will be relocated to existing manhole 2 and renamed

G/S WI-12A.

Equipment schedule on UD-7 states that the switch G/S WI-8 should be used to replace that switch and be named G/S WI-12A?

NASA Response: Note: On drawing page PCP-5 existing switch callout G/S WI-8 should be G/S

W-8. Switch at existing manhole 7 to remain in place. Refer to switch schedule.

Yes. Relocate G/S WI-8 to manhole 2 as shown on PCP-2. Rename switch G/S WI-12A.

Please clarify the equipment schedule on UD-7. Is G/S WI-8 the name of the switch in place now, and we will just re-name the switch to G/S WI-12A, or will this switch be replaced?

NASA Response: Note: On drawing page PCP-5 existing switch callout G/S WI-8 should be G/S W-

8. Switch at existing manhole 7 to remain in place. Refer to switch schedule.

Relocate G/S WI-8 to manhole 2 as shown on PCP-2. Rename switch G/S WI-12A.

If so, what switch replaces G/S WI-8? Have no way to tell what names the existing switches are, cannot read print on EOL-1.

NASA Response: Note: On drawing page PCP-5 existing switch callout G/S WI-8 should be G/S W-

8. Switch at existing manhole 7 to remain in place. Refer to switch schedule.

Vacated pad from switch relocation is to be removed.

9. Drawing PE-8: There is no print for PE-8. Please confirm this drawing was intended to be omitted?

NASA Response: Yes. PE-8 has been omitted due to detail page PCP-8.

10. Drawing PCP-9: Is the existing primary junction NJ-65 (being fed out of G/S WI-22) to be demolished and cable removed back to the source?

NASA Response: Yes.

11. Drawing PCP-9: Switch G/S WI-22 is being fed with two sets of 4/0awg 15kv wire out of J35 containing both NE and NW feeders. The new plans call for 1/0 awg to be ran from J35 to G/S

WI-22? This feeder cable supplying the switch has been installed on north island project, and a

1/0awg feeder from J35 to G/S WI-22 would not serve purpose.

NASA Response: Disregard note to install 1/0 awg feeders from J35 to G/S WI-22.

12. Drawing PCP-9: When transformer TR V-65 is removed, will loads be re-fed out of another source?

NASA Response: Remove transformer as shown on drawing PCP-9. Remove existing primary cable. Building is to be abandoned.

13. Drawing PCP-9: What wire will be installed from TR V-NEW to 2x2x2 quazite box?

NASA Response: Install #3/0 awg 4 wire w/#6 awg ground secondary cable. Feed from new 3 pole 100 Amp breaker furnished with new 400 Amp I-line panel at V-66.

14. Drawing PCP-9: Is 2x2x2 quazite box a dead end point? Will it be tied into a load?

NASA Response: The quazite box is for an antenna. Consider the quazite box as a termination point.

15. Drawing PE-10: Switch G/S-2M1B – not on UD-7 gear schedule.

NASA Response: Drawing UD-7 correct G/S-2M1B callout to read G/S-2M0 as shown on UD-7 switch schedule under rows for PCP-10.

16. Drawing PE-10: Switch G/S-2M1B – Will it be installed on a specified pad or vault?

NASA Response: Pad.

Note: Drawing UD-7 correct G/S-2M1B callout to read G/S-2M0 as shown on UD-7 switch schedule under rows for PCP-10.

17. Drawing PE-10: Area in general – is this area considered above flood plane? Does this area require large pads to elevate equipment 4’ above grade?

NASA Response: No this area is not considered above flood plane. No the area does not require large pads to elevate equipment.

18. PCP/PE-11 through 14: Are ductbanks to be existing and re-used for this area? Is new Direct boring to be installed?

NASA Response: Use existing ductbank as shown on drawings. No directional boring.

19. PCP/PE-11 through 14: Are there available spare conduits? What size/length?

NASA Response: Yes. Four inch conduit. Refer to drawing pages, use cable lengths shown.

20. PCP/PE-11 through 14: Are existing Hand Holes to be re-used, is contractor providing and installing new Hand Holes?

NASA Response: Use existing hand holes.

21. PCP/PE-12: G/S-2M5 – Feed to 45KVA xfrmr – is new feeder to be pulled from switch to transformer, or re-use existing feeder and terminations and land on new switch?

NASA Response: Re-use exiting feeder and terminate to new transformer.

22. Is all of the new exterior electrical distribution equipment supplied under this contract to be manufactured of stainless steel?

NASA Response: Yes.

23. Section 01 50 00-3.5 – 3.6 “Government Field Office”. Please confirm the contractor and the government representative can occupy the facility discussed in the above section and that only one office trailer is required for this project.

NASA Response: Confirmed.

24. Section 33 05 23.13-3.8 “Guidance System” for direction boring. Please clarify if a walk over guidance system will be acceptable on this project. The Tru Tracker system specified will have a significant impact on the cost of the project.

NASA Response: Walk over is acceptable.

25. Please provide specifications for the new breaker being provided in building U12. KAIC rating

/BIL rating/ Voltage/ ampacity etc.

NASA Response: The new breaker specification is 25 KAIC/95 kV/15 kV Class/200 Amp.

26. Specification section 271323.0040 Communication Optical Back Bone Cabling. Question what do we do with this specification? I see communication pipe all over the drawings but I do not see a one line for the fiber telling us what to do, what size, how many, What the intent is, Where

What we hooking to?

NASA Response: Disregard. There is no comm on this project.

27. Drawing UD-1 Manhole racking detail. Question do we provide new racking in the existing

Manholes or just New Manholes, or can we reuse existing racking?

NASA Response: Use existing and provide racking to new manhole.

28. Drawing Pol-2 one line shows new cable from MH 4 to Switch GSW10 East Side and GSW10

West side Back to MH 4. Drawing PCP-3 shows the installation of one Primary Junction

Enclosure. Question I think you need two junctions to make it work as shown on the one line?

NASA Response: Correct, provide two junctions boxes. See revised drawing addendum to be issued as Amendment 2.

29. On the following pages are the conduits existing or to be bored?

- PCP-2 2-4" 402' NASA Response: Bore new.

1-4" 65' NASA Response: Bore new.

1-4" 75' NASA Response: Bore new.

- PCP-6 2-4" 453' NASA Response: Bore new.

1-4" 221' NASA Response: Bore new.

2-4" 510' NASA Response: Bore new.

- PCP-8 any boring NASA Response: Only as indicated under construction notes:

- PCP-9 2-4" electric and 2-4" comm 511' NASA Response: Existing.

30. Please provide a Detail on the silt fence? Or do we figure using super silt?

NASA Response: Contractor is responsible for providing all adequate silt fencing and erosion controls. Per notes on GN-1 and in specifications.

31. Who is responsible for locating the existing utilities?

NASA Response: NASA will locate the existing utilities.

32. Will there be a dump site for boring fluids on site? If so please identify where.

NASA Response: Yes, contractor will coordinate on-site with NASA assigned field inspector.

33. Drawing Pol-3 one line shows new cable from Switch GSWI4 East Side to GSWIOB East side and

Back to GSWI4. Drawing PCP-7 shows the installation of one Primary Junction Enclosure. e

Question I think you need two junctions to make it work as shown on the one line?

NASA Response: Correct, provide two junctions boxes. See revised drawing addendum to be issued as Amendment 2.

34. Drawing Pol-3 one line shows new cable from MH 9 to Switch GSW7B East Side and GSW7B

West side Back to MH 9. Drawing PCP-6 shows the installation of one Primary Junction

Enclosure. Question I think you need two junctions to make it work as shown on the one line?

NASA Response: Correct, provide two junctions boxes. See revised drawing addendum to be issued as Amendment 2.

35. Due to FedEx delivery times we need to submit our bid two days ahead. Since the bid is due on the 7th that would land on Labor Day. Is there any way to extend this bid by one day?

NASA Response: The deadline for receipt of bids is not extended. As stated in section L.28, regardless of the method of delivery chosen, the offeror is responsible for delivery of the proposal to the designated receiving office no later than the date and time stated on the face page of the solicitation.

36. Drawing Pol-3 shows transformer eraps. Question do you mean Spare?

NASA Response: Yes.

37. Drawing Pol-3 Switch GSWI8 show a Transformer eraps coming off of it. Site Drawing PCP-5 I don’t see transformer eraps coming of Switch GSWI8.

NASA Response: “eraps” is supposed to be “spare”. This word was mirrored on the drawings.

38. Drawing Pol-3 Cable coming to switch GS0A appears to be existing to remain?

NASA Response: Correct cable is existing to remain.

39. The drawings are very hard to read even with a magnifying glass, the fonts are very small.

NASA Response: All cable, conduit, switch, and transformer information is documented in several locations throughout the drawing package in the one lines, cable plans, and conduit plans. Contractor should use the package as a whole to determine all information.

40. Drawing PCP-1 looks like the intent is to pull new cable to transformer X 75. I can’t find the pull on the one line.

NASA Response: See drawing PE-1 for more information. TR X-75 to be refed from existing switch G/S X-075.

41. Is this project considered tax exempt or no?

NASA RESPONSE: No, the project is not tax exempt.

42. Do you need one original of all bid requirements (SF1442, bond, Reps and certs etc.) or just of the SF1442?

NASA RESPONSE: One original of all bid requirements is required. Additional copies to be submitted as defined in section L.29 of the solicitation.

43. Bid submission required documents are SF1442, Bid Bond, Reps and certs, that’s all?

NASA RESPONSE: Please refer to section L.29 for the list of required documents for bid submission.

44. It lists in the specs that a detailed schedule is listed in Section 8 but I can’t find that. Please advise.

NASA RESPONSE: Refer to the electrical equipment schedule on Drawing No. 17800.

Drawing UD-7

45. Transformer Schedule only list transformers on drawings PCP-1 thru PCP-8. There are transformers shown on drawings PCP-10 thru PCP-14. Can this Schedule be update to list all transformers?

NASA Response: Will add transformers from drawings PCP-10 thru PCP-14 only if they need to be provided as part of this project. Existing transformers that are to remain will not be added to

UD-7.

46. Junction Cabinet Schedule are showing the Ampacity of the New Cabinets at 200amps. The PCP & PE drawings are showing them at 600amps. What Ampacity should they be rated for? Can this schedule be updated and it is missing J-5.

NASA Response: 600 amps. Yes, schedule will be updated.

47. Manhole Schedule shows MH-2, MH-13 & MH-15 having the same Switchgear over them. G/S

WI 4. Can this schedule be updated to show the correct Gear to Manhole?

NASA Response: Will update gear and manhole schedules.

Drawing PCP-1

48. Building X-85: Shows installing a New 400amp Panel and Feeder Wires. Please provide a panel schedule with what Size Breakers will be needed in the Panel. What is the length required for the New Feeder Wires to be installed? Are Feeder Wires being installed in an Existing Conduit?

NASA Response: Provide the following breakers: two 3P-50 amp, one 3P-80 amp, four 3P-225A.

Length of feeder is 150 feet. Install in new 4” conduit.

Drawing PCP-2

49. Manhole at Existing Switchgear G/S WI 10 is not labeled. Is this MH-4?

NASA Response: Yes, MH-4.

50. Manhole Schedule on drawing UD-7, list a manhole MH-4A and is on drawing PCP-2. Do not see this manhole on PCP-2. Please Clarify.

NASA Response: MH-13 on PCP-3 is mislabeled. Should be labeled MH-4A on PCP-3.

51. There are 3 Directional Bore Electric boxes (lengths 65' - 75' - 402') shown. Are these Existing or to be Installed Conduit?

NASA Response: To be installed.

Drawing PCP-3

52. Manhole MH-13 shows Switchgear G/S WI 10A to be installed over this manhole. Manhole Schedule shows Switchgear G/S WI 4 over this manhole. Switchgear Schedule does not even show on drawing PCP-3. What is the correct Switchgear name going over MH-13?

NASA Response: See response to Question #50.

Drawing PCP-4

53. Manhole at Existing Switchgear G/S WI 9 is not labeled. Is this MH-5?

NASA Response: Yes, MH-5.

54. Primary Junction by Switchgear G/S WI 9 is not labeled. Is this Junction Cabinet J-4?

NASA Response: Yes, J-4.

55. Building Y-50: Shows installing a New 400amp Panel and Feeder Wires. Please provide a panel schedule with what Size Breakers will be needed in the Panel. Please provide a location of the panel in the building. (drawing)Please provide a distance from the Transformer to the Panel location. How are we to enter the building with the new conduit?

NASA Response: No new panel needed. Refeed existing 400 amp main breaker panel from TR Y-

50. Feed length is 150 feet. Contractor to verify how to enter building in the field.

Drawing PCP-6

56. There is 1 Directional Bore Electric boxes (length 221') shown. Is this an Existing or to be Installed Conduit?

57. Manhole at Existing Switchgear G/S WI OA-1 is not labeled. Is this MH-9?

NASA Response: Yes, MH-9.

58. At Install: Switchgear G/S WI 5, the manhole is not labeled. Is this MH-11?

NASA Response: No, MH-10. See revised drawing amendment incorporated via Amendment 2.

59. Manhole Schedule on drawing UD-7, list a manhole MH-9A & MH-10 and is on drawing PCP-6.

Do not see these 2 manhole on PCP-6. Please Clarify.

NASA Response: Switch G/S WI 7B shown on PCP-6 sits on MH-9A. Switch G/S WI 5 shown on PCP-6 sits on MH-10. See revised drawing amendment incorporated via Amendment 2.

Drawing PCP-7

60. 4-Way Junction is shown on drawing but is not labeled. Is this Junction Cabinet J-3?

NASA Response: Yes.

61. There is 1 Directional Bore Electric boxes (length 88') shown. Is this an Existing or to be Installed Conduit?

62. Manhole for Switchgear G/S WI 4 is not labeled. The Manhole Schedule shows MH-12 & MH-15 at the Switchgear location. What manhole is this? Is this MH-12?

NASA Response: G/S WI 4 sits on MH-11. Neither MH-12 nor MH-15 is correct.

63. Switchgear location G/S WI OB is not listed on the Switchgear or Manhole Schedule. Is this

Switchgear Existing or Buy New? Is this Switchgear being install over a New Manhole or sitting on a Concrete Pad?

NASA Response: Switch G/S WI OB is to be new and installed on MH-12. Install on new manhole.

64. Drawing shows - Existing Transformer Pad OB by Switchgear G/S WI OB. Is there an Existing

112.5kVA Transformer setting on the pad now?

NASA Response: Existing transformer sitting at Pad OB is a 500 kVA transformer.

Drawing PCP-8

65. What work is involved on these drawings? Just the work per the Construction Notes for Buildings - W-50, W-10, W-40, W-40 & V-50?

NASA Response: Work per construction notes.

66. Transformer - TR-W-10 is shown as a 300kVA on the Transformer Schedule and as a 112.5kVA on the drawing. What is the correct size for this transformer?

NASA Response: 300 kVA

67. Transformer Schedule shows a TR-W-20. Should this be Transformer - TR-W-40 for building W-

40?

NASA Response: Correct, should be TR W-40.

68. Building W-50: Shows installing a New 175amp Main Breaker. Please provide a Manufacturer

(GE, Sq. D) of the Main Breaker & Type/Style needed.

NASA Response: No new panel needed. Contractor to remove existing 200 amp fused safety switch main disconnect with 175 amp fuses and provide new 3P-175 amp enclosed breaker to serve as main.

69. Building W-10: Shows installing a New 175amp Main Breaker & Primary Conductors. Please provide a Manufacturer (GE, Sq. D) of the Main Breaker & Type/Style needed. Please provide a distance from the Switchgear to the Transformer location.

NASA Response: No new panel needed. Refeed existing Square D I Line style panelboard. 100 feet.

70. Building W-20: Shows installing a New Primary Conductors. Please provide a distance from the Switchgear to the Transformer location.

NASA Response: 150 feet.

71. Building W-40: Shows installing a New 400amp Panel. Please provide a panel schedule with what

Size Breakers will be needed in the Panel.

NASA Response: Install new main distribution panel with 400 amp main breaker and the following branch breakers: one 3P-125 amp, and one 3P-225 amp breaker.

72. Building V-50: Shows installing a New Primary Conductors. Please provide a distance from the

Switchgear to the Transformer location.

NASA Response: No distance needed. Existing primaries are to remain. Only swap out transformer at this location.

73. Is Building V-50 a miss print and should it be W-50? I cannot find Bldg. V-50 on the one line.

NASA Response: No V-50 is not a miss print. The only work at V-50 should be the replacement of the transformer. See response to Question #72 for additional information.

Drawing PCP-9

74. Transformer - TR-V-66 is not listed on the Transformer Schedule on drawing UD-7. Can this Schedule be update to list all transformers?

NASA Response: Will add TR V-66 to Transformer Schedule. Transformer should be 150 kVA with 208/120Y secondaries.

75. Building V-80 shows a 400amp Panel on the exterior of the building. Are we to follow the same

Construction Notes as Building V-66?

NASA Response: No 400 amp panel is needed at building V-80. Intercept existing conduits and connect new conductors to existing gear.

76. Buildings V-66 & V-80: Shows installing a New 400amp Panels. Please provide a panel schedule with what Size Breakers will be needed in the Panels.

NASA Response: Building V-80 does not need a 400 amp panel, see response to Question #75.

Provide 400 amp, 3ph, 4wire, 208/120V 24 position I-Line style panelboard with 400 amp main in building V-66. In addition, provided the following branch breaker: 3P-225A breaker to feed Building V-80, 3P-250 breaker to feed V-66, & 3P-100A breaker to feed 2x2x2 quazite box.

Drawing PCP-10

77. Are there Manholes under Switchgear G/S-2M1B & the one labeled Existing Switchgear?

NASA Response: No, Retrofit switch to existing concrete pad.

78. Switchgear Schedule shows a New Gear named G/S-2M0. Do not see this Switchgear on PCP-10.

Please Clarify.

NASA Response: On PCP-10 switch near Building U-55 is mislabeled as G/S-2M1B. Should be G/S-2M0.

Drawing PCP-11

79. Two New Transformers are shown on the drawing, but are not listed on the Transformer Schedule on drawing UD-7. Can this Schedule be update to list all transformers?

NASA Response: Yes, will add TR U-50 & TR U-90. See revised drawing addendum incorporated via Amendment 2.

80. Are there Manholes under the 2 New Switchgears G/S-2M2 & G/S-2M3 '

81. There are 4 Manholes shown on the drawing. Are these Manholes Existing or New to be Installed?

NASA Response: Existing.

82. There are Dashed Lines shown on the drawings. Does this represent Existing or New Conduit

Runs to be Installed?

Drawing PCP-12

83. Are there Manholes under Switchgear G/S-2M4?

84. There are 5 Manholes shown on the drawing. Are these Manholes Existing or New to be

85. There are Dashed Lines shown on the drawings. Does this represent Existing or New Conduit

Drawing PCP-13

86. Two Existing Transformers are shown on the drawing, but are listed on the Transformer

NASA Response: No, existing transformers are to remain.

87. Are there Manholes under the 2 New Switchgears G/S-2M5 & G/S-2M6?

88. There are 3 Manholes shown on the drawing. Are these Manholes Existing or New to be

89. There are Dashed Lines shown on the drawings. Does this represent Existing or New Conduit

Drawing PCP-14

90. Four Existing Transformers are shown on the drawing, but are not listed on the Transformer

NASA Response: No, existing transformers are to remain.

91. Are there Manholes under the 3 New Switchgears G/S-2M7 & G/S-2M8 & G/S-2M9?

92. There are Dashed Lines shown on the drawings. Does this represent Existing or New Conduit

GENERAL

93. Is there any way we can find out who did the first phase of this project and what the pricing was?

NASA RESPONSE: The North Island Electrical Upgrade project was awarded to Dvorak LLC in the amount of $5,097,700. Please note the scope of work for the South Island project is considerably smaller than the North Island scope.