A02 CP Ref Drawings - NASA Sitewide CP Rehab 2016.pdf
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- Solicitation number
- W912P921R0036
About this file
This document contains a federal contract opportunity notice and related technical drawings. The U.S. Army Corps of Engineers, St. Louis District is seeking firms for the rehabilitation of miter gates at the National Aeronautics and Space Administration's John C. Stennis Space Center in Mississippi. The goal is to rehabilitate the upper and lower miter gates to maintain marine access to the NASA test facility. Work will include blasting and painting gates, replacing timber fenders, rubber seals, and structural members, removing and reinstalling the cathodic protection system, and rehabilitating hydraulic cylinders. Firms must furnish all equipment, labor, services, materials and complete specified work, minimizing lock closure duration. The solicitation is expected to issue on May 21, 2021 via the System for Award Management website. The estimated value is between $5-10 million. Responses are due as specified in the solicitation.
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DRAWING NO.AUTHORITY
ERONAUTICS AND
DMINISTRATION
PACE
ATIONAL
DESCRIPTION
REVISIONS
SYM
SIGNATURES
ZONE
DATE
APPROVED
SSC, MS 39529-6000
SPACE CENTER
JOHN C. STENNIS
DATE
CADD P/N:
A
B
NOTES:
1. EXISTING ANODES: COMPOSITION ASTM B-265, TITANIUM/GRADE2, DIAMETER
0.75", LENGTH 20". TOTAL IS 368 ANODES.
REPLACEMENT ANODES: TITANIUM ASTM GRADE 1 SUBSTRATE
TUBULAR ANODE WITH MIXED METAL OXIDE COATING. DIAMETER 1.0",
LENGTH 19.7". TOTAL IS 368 ANODES.
UPPER MITER GATES (2 EACH) UPSTREAM AND DOWNSTREAM SIDES
FOUR ANODES PER STRING WITH EIGHT ANODE STRINGS PER A GATE
PER SIDE.
LOWER MITER GATE (2 EACH) UPSTREAM SIDE NINE ANODES PER
STRING WITH EIGHT ANODE STRING PER A GATE PER SIDE.
LOWER MITER GATE (2) EACH DOWNSTREAM SIDE, SIX ANODES PER
STRING WITH EIGHT ANODE STRINGS PER A GATE PER SIDE.
2. EXISTING ANODES LEAD WIRES: # 8 AWG, 7 STRAND COPPER CONDUCTORS
WITH 7/64" THICK HIGH MOLECULAR POLYETHYLENE (HMWPE) INSULATED
LEADS. REPLACEMENT ANODES LEAD WIRES #8 AWG, 7 STRAND COPPER
CONDUCTORS WITH .020" HALAR INSULATION THICKNESS (INNER LAYER) AND
.065" HIGH MOLECULAR POLYETHYLENE (HMWPE) THICKNESS (OUTER
LAYER).
3. CONDUCT STRUCTURE TO WATER POTENTIAL MEASUREMENTS WITH
REFERENCE TO COPPER - COPPER SULFATE CELL AT THE POINTS INDICATED
BY "X" ON BOTH THE EAST AND WEST GATES. ADJUST RECTIFIER OUTPUT TO
HAVE POTENTIAL MEASUREMENT NOT HIGHER THAN -0.85 VOLT.
4. REPLACE EXISTING RECTIFIER AND ANODE STRINGS.
BUILDING 2311 BUILDING 2310
A
B
REPLACEMENT RECTIFIER 1
460 VAC, 3 PHASE
30 VDC, 50 AMP
REPLACEMENT RECTIFIER 4
460 VAC, 3 PHASE
30 VDC, 50 AMP
REPLACEMENT RECTIFIER 2
460 VAC, 3 PHASE
30 VDC, 50 AMP
REPLACEMENT RECTIFIER 3
460 VAC, 3 PHASE
30 VDC, 50 AMP
REPLACE EXISTING ANODE
AND ATTACHMENT CABLE
STRAIGHT CONNECTOR
WITH NEOPRENE BUSHING
EMCS
EMCS
MBC422
ELPRO 905U WIRELESS
MULTI I/O NODE
EMCS HARDWIRE
& 24 VAC SUPPLY
ELPRO 915U WIRELESS
MULTI I/O GATEWAY
EMCS
ELPRO 915U WIRELESS
MULTI I/O GATEWAY
EMCS
ELPRO 915U WIRELESS
MULTI I/O GATEWAY
EMCS
ELPRO 915U WIRELESS
MULTI I/O GATEWAY
EMCS
MBC421
EMCS HARDWIRE
& 24 VAC SUPPLY
ELPRO 905U WIRELESS
MULTI I/O NODE
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