B.08.03 VA_23B0002_Plans_Amd003.pdf
PDF 623 KB Posted
- Attached to
- MNA Levee Drainage Pump Upgrade Federal contract opportunity
- Solicitation number
- W912EF23B0002
About this file
This set of construction plans and details provides specifications for upgrading pump stations along the Columbia River. The work includes installing grounding systems for metal fences at multiple pump station sites. The plans call for a #2/0 bare copper ground cable connected to one or more 8-foot copper-coated ground rods placed a minimum of 18 inches below grade. The cable and all connections must use exothermic welds or irreversible compression connectors. Fence posts must be bonded to the ground cable with #2 AWG copper and the gate frames bonded at contact points. Exceptions apply if utility power lines are within 9 feet of fencing. The related solicitation seeks bids for this work under contract number W912EF23B0002 with the U.S. Army Corps of Engineers Walla Walla District.
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CONNECTOR OR EXOTHERMIC WELDS
IRREVERSIBLE COMPRESSION
TO FENCE POST
GROUND CABLE
#2 AWG COPPER
LOOP GROUND CABLE
WELD TO THE 2/0 COPPER
CONNECTOR OR EXOTHERMIC
IRREVERSIBLE COMPRESSION
FLEXIBLE COPPER BRAID
3/4" X 10'
GROUND ROD
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DETAIL: GATE GROUNDING
SCALE: NOT TO SCALE
A15
DETAIL: GROUND ROD BONDING
SCALE: NOT TO SCALE
G15
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#2 AWG, COPPER BOND CABLE
GROUND CABLE
#2/0 AWG COPPER LOOP
BRAID AS SHOWN.
THE GATE FRAME SHALL BE BONDED TO THE POST USING FLEXIBLE COPPER 5.
AN EXOTHERMIC TYPE WELD OR IRREVERSIBLE COMPRESSION CONNECTOR.
SHOWN. ALL CONNECTIONS TO THE GROUND CABLE SHALL BE MADE USING
USE #2 AWG BARE COPPER CABLE FOR GROUND BOND TO FENCE POSTS AS 4.
SHALL BE 12" TO 18" INSIDE THE FENCED AREA.
PLACED A MINIMUM OF 18" BELOW SURFACE GRADE. THE GROUND CABLE
THE GROUND CABLE SHALL BE #2/0 BARE COPPER CABLE AND SHALL BE 3.
DRAWING SHALL BE THE BASIS OF A CHANGE ORDER.
ADDITIONAL WORK TO INSTALL FENCE GROUNDING SHOWN ON THIS
FENCES THE CONTRACTOR SHALL NOTIFY THE CONTRACTING OFFICER.
IN THE EVENT THAT UTILITY POWER IS ROUTED WITHIN 9 FEET OF METAL 2.
OCCURRING.
FENCES. IN THE EXISTING DESIGN THERE ARE NO INSTANCES OF THIS
EXPOSED UTILITY CONDUCTORS ARE ROUTED WITH 9 FEET OF METAL
FENCE GROUNDING SHALL NOT BE REQUIRED EXCEPT IN INSTANCES WHERE 1.
GENERAL SHEET NOTES
| MN333719a_VAG-002XXX |
| MN333719a_VAC-504XXX |
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