DTFASA-17-R-00145 Amend 1 Answers.pdf
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Questions for DTFASA‐17‐R‐00145 – Santa Maria PAPI Project
003 ‐ Light Housing Assembly
1. Request for 1 ground 4‐0 around for LHA no termination or connection detail
Answer: Terminate to the ground counterpoise.
2. "GRMC" Stands for???
Answer: Galvanized Rigid Metallic Conduit
Light Housing assembly elevation view
3. Please provide information as noted in Note# 1391‐C Section 4.2‐4.8 and 1217 G Section 5.2.3.2.1
| Answer: | See | Orders | 1391d | section | 4.2‐4.8 | and | 1217G | section | 5.2.3.2.1 | as | stated | on | the | drawing. | |
| The | drawing | stated | 1391c, | but | it | should | be | 1391d. |
Re‐ bar in Foundation ground wire
4. No size and no Point of Ground connection in the ground system 1‐0 or 4‐0.
Answer: Weld to counterpoise
| 5. Detail | for | 2" | pipe | from | hand | hole | to | L.H.A. | spacer | not | clear | in | details | page | COOS | PAPI | LHA | trench |
| details | request | between | high | and | low | voltage | min | .. | 24" | and | in | between | first | row | and | second | row | 6"min. |
Answer: 6”
6. Please provide detail to penetrate and connecting wire # 6 ground to LHA
Answer: See Drawing SMX‐D‐PAPI30‐C003, all details
7. Please provide detail how terminate 1 "pipe coming up the concrete for LHA exterior grounding.
Answer: Cut off 1” pvc 1” above concrete. Run #6 through 1”pvc to ground the LHA chassis.
| 8. W | # | 6 | for | grounding | L.H.A | shall | be | sealed | or | stranded | green | signs | it | is | coming | from | underground |
| and | to | be | connected | to | 1‐0 | or | 4‐0 |
Answer: All grounding to be terminated underground at the counterpoise.
9. EMT leg detail 3 required 2" lock nut need to be galvanized or stainless steel or Standard.
Answer: Galvanized
10. Ground wire# 1 O Under the rod shall be in 1" pipe or no pipe.
Answer: Should be in PVC.
| 11. Ground | re‐bar | in | LHA | Foundation | to | be | connected | to | 1 | 0 | or | 4 | 0 | LOP | LHA | Unit | ground# | 6 | to | be |
| connected | to | 1 | 0 | or | 4 | 0 | LOP |
Answer: Ground re‐bar 1/0 / 4/0 should be terminated with ground counterpoise.
12. PAPI LHA Trench details 12" or 24 "min. Separation between power primary power and control conduits.
Answer: 6”
Copper Industries
C004 ‐Ground to ground and air to ground radio control details.
B‐
13. 32 Strands of# 17 ( 2 PL) Lightning protection and labeled provided by?????
Answer: Contractor
14. 28R Welded to 4‐0 not clear.
Answer: Weld to 4/0
15. 2" GRS Conduit stand for ???????????
Answer: Galvanized Rigid Conduit
16. 2" PVC spare conduit not clear to which side to directed out of the foundation.
Answer: ‐ to the incoming power
C005 ‐Duct bank grounding
17. Not clear ‐The distance in between the ground round and between H.H,. Boxes.
Answer: It’s specified in the order 1391d or 019e.
Hand hole detail
18. As note # 5 request 3 ground round per H.H. Box ..
Answer: Refer to the latest order 1391d.
19. In the detail grounding appear in the duct Bank 3 sides of H.H. Box is it correct?
Answer: The requirement is stated in the drawing and if not clear, please refer to the order 1391d.
| 20. The | size | of | proposed | access | asphalt | road | to | the | PAPI | is | not | clearly | defined | Neither | in | the | Spec | nor |
| on | the | drawing. |
Answer: Refer to drawing C002 & C004
21. Verify (Refer to drawing C002), the type of conduits RSG or RSC?
Answer: RSG
22. Please verify if the conduit sizes in drawing C006 are 3" & 4"?
Answer: 4”
| DTFASA-17-R-00145 Amend 1 |
| Answers for DTFASA-17-R-00145 |
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