Attachment 6_P2-00022-25 Repair Electrical and Bathroom 137_Schematic and drawing_20250915.pdf
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This document is a Performance Support Attachment (PSA) for a CM-300/350 Radio Upgrade project at Pope Army Airfield in North Carolina, specifically for the 85th Engineering Installation Squadron. The attachment details precise mechanical and electrical requirements for radio equipment installation in Buildings 179 and 137.
Mechanical specifications include environmental control parameters for three specific rooms, with operating temperatures ranging from 50°F to 140°F and humidity between 10%-80% (non-condensing). Electrical requirements specify four 120 VAC, 20 AMP circuits with L5-20 twist lock receptacles in Building 137's Equipment Room 3, to be mounted on the ladder rack above each proposed radio rack location. The heat emission details for new radio equipment are precisely calculated, with transmitter and receiver units for CM-300/350 radios generating specific BTU outputs in different rooms. The accompanying sketch (PSA Sketch 1) provides a detailed floor layout for the GATR Building 137, Room 3, showing rack locations and electrical configuration.
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Text version
CUI TMKG-85-2023-00001, PSA, Page 10
TSgt McCormick/85 EIS/SCOY/DSN: 597-1031/EWM/10 Mar 25
PSA ATTACHMENT 2
DEPARTMENT OF PUBLIC WORKS SUPPORT REQUIREMENTS
Project: CM-300/350 Radio Upgrade, Pope Army Airfield, NC, TMKG-85-2023-00001
1. Mechanical Requirements
a. Design criteria for environmental control: 43 OSS/OSAM must ensure the environmental controls for the buildings and rooms are sufficient to keep all additional communications equipment installed within the specified operating environments.
1) Interior operating temperature and humidity, allowable tolerances and gradients:
BLDG ROOM OPERATING TEMPERATURE OPERATING HUMIDITY
179 801 50° F TO 140° F (10°-40°C) 10%-80% (NON-CONDENSING)
179 Cab 50° F TO 140° F (10°-40°C) 10%-80% (NON-CONDENSING)
137 3 50° F TO 140° F (10°-40°C) 10%-80% (NON-CONDENSING)
2) Heat emission, BTU per hour: The maximum heat emissions listed are for the equipment that will be installed under this project and does not include equipment that is already in place.
BLDG ROOM EMMISSION SOURCE MAX HEAT EMISSION
179 801 CM-300/350 Radios Tx 1,638 x 6=9,828 Rx 409 x 6=2,454
179 Cab RCUs RCU 409 x 2=818
137 3 CM-300 Radios Tx 1,638 x 10=1,638
Rx 409 x 8=3,272
2. Electrical Requirements:
a. Power.
(1) GATR Bldg. 137, Equipment room 3: Provide one (1), 120 VAC, 20 AMP circuit with L5-20 twist lock receptacle, mounted to the bottom of the ladder rack, above each proposed rack location for a total of 4. Each outlet must be on its own breaker. Reference PSA Sketch 1, Sheet 1, Keynote 2.
ID VOLTS AMPS POLE(S) LOCATION EQUIPMENT RECEPTACLE
OR J-BOX
REMARKS
FPI 1-4 120 20 1
Bldg. 137/
RM 3
Radio Rack
L5-20R Install above each rack and on own breaker
1090118710C Highlight
H
G
F
E
D
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B
A
8 7 6 5 4 3 2 1
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F
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8 7 6 5 4 3 2 1
SCALE REV. DATE SHEET
AUTHOR(S)
PROJECT # CLIENT
PROJECT NAME
SHEET DESCRIPTION
DRAWING NAME
SIZE DRAWING NUMBER
CONTROLLED UNCLASSIFIED INFORMATION
DESTRUCTION NOTICE: DESTROY BY ANY METHOD THAT WILL PREVENT
DISCLOSURE OR RECONSTRUCTION OF THE DOCUMENT
85th ENGINEERING INSTALLATION SQUADRON
UNITED STATES AIR FORCE
B
1:420
TMKG-85-2023-00001 43 OSS
TSgt Earl McCormick
Pope Army AirfieldCM-300/350 Radio Upgrade
PSA Sketch 1
GATR Bldg 137
1 OF 1Orig. 20-Mar-25
REVISIONS
REV DESCRIPTION DATE APPROVED
GATR ROOM 3 FLOOR LAYOUT
KEY NOTES
RESERVE for C-TAP 1/0 to 2 AWG
CE to install L5-20 twist lock Receptacle on bottom side of ladder rack for rack 1-4.
Reserve 129” L x 26.5” W from antenna inlet wall for 4 new racks
Reserve space on DEMARC board for 2x demarc 66 block
1/0 AWG 2
25'-0"
'-0
5'-10"
4' -1
0"
2'-4"
3'-0"
4' -1
0" 4'
-7
3'-11 1/4" 1'-11" 1'-11" 1'-11"
Existing Radio Rack
Existing Patch Panel Rack
DEMARC BOARD
Purposed Location of New Rack
4 Over Existing
Purposed Location of New Rack
3 Over Existing
Purposed Location of New Rack
2 Over Existing
Purposed Location of New Rack
1 Over Existing
B l o c k
B l o c k
10'-9"
FPI-1 FPI-2 FPI-3 FPI-4
1090118710C Highlight
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