Am0001_Dwgs.pdf

PDF 908 KB Posted Aug 7, 2018

Attached to: Oahe Station Service Switchgears Federal contract opportunity
Solicitation number: W9128F18Q0001
Issued by: Department of the Army Corps of Engineers Engineering District Omaha

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File	Type	Posted
Amendment_0002,_OA_Service_Station_Switchgears.pdf	PDF	Aug 8, 2018
01_22_00.00_26.pdf	PDF	Aug 7, 2018
Amendment_0001,_OA_Service_Station_Switchgear.pdf	PDF	Aug 7, 2018
Site_Visit_Notes.pdf	PDF	Aug 3, 2018
Site_Visit_Attendance_List.pdf	PDF	Aug 3, 2018
Specs_Station_Service_Switchgear_Replacement_Oahe.pdf	PDF	Jul 18, 2018
W9128F18Q0001,_OA_Switchgears.pdf	PDF	Jul 18, 2018
Outdoor_Station_Service_Switchgear_Oahe_Dwgs.PDF	PDF	Jul 18, 2018

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...\30500 - Construction E&D\OA79\30DA0 - Plans & Specs\CAD_BIM\_Sheets\30DA0 - Plans & Spec

®of Engineers

US Army Corps

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SHEET SEQUENCE NUMBER

w/ Level 2 Designator

DISCIPLINE DESIGNATOR

M - 2 0 1

2. DISCIPLINE DESIGNATORS:1. SHEET IDENTIFICATION NUMBERS:

RESOURCE

TELECOMMUNICATIONS

ELECTRICAL

MECHANICAL

PROCESS

PLUMBING

FIRE PROTECTION

EQUIPMENT

INTERIORS

ARCHITECTURAL

STRUCTURAL

LANDSCAPE

CIVIL

GEOTECHNICAL

SURVEY / MAPPING

HAZARDOUS MATERIALS

GENERAL

INDEX LEGEND:

SHEET TYPE DESIGNATOR

3. SHEET TYPE DESIGNATORS:

3D REPRESENTATIONS

USER DEFINED

SCHEDULES & DIAGRAMS

DETAILS

LARGE-SCALE VIEWS

SECTIONS

ELEVATIONS

PLANS

GENERAL

INDEX

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Designator)

RELEASE 6.0 for Level 2

(see A/E/C CADD STANDARD

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IN CONCRETE ENCASED DUCTBANK

(1000 KCMIL) AND 6" SCH. 40 PVC

NEW 15KV UNDERGROUND CABLE

115' (+/- 10%)

NEW COLUMN

EXISTING COLUMN

(SEE DETAILS ON SHEET E-503)

NEW 4' X 4' X 6'D MANHOLE

(SEE DETAILS ON SHEET E-503)

NEW 4' X 4' X 6'D MANHOLE

SWITCH 813

DISCONNECT

OPERATED

NEW GROUP

IN CONCRETE ENCASED DUCTBANK

(1000 KCMIL) AND 6" SCH. 40 PVC

NEW 15KV UNDERGROUND CABLE

COPPER BUS

2" SCHEDULE 40 RIGID

NEW 15 KV OVERHEAD

(DEPTH 3'-0" TO TOP OF DUCTBANK)

IN CONCRETE ENCASED DUCTBANK

(1000 KCMIL) AND 6" SCH. 40 PVC

NEW 15KV UNDERGROUND CABLE

CONNECTION DETAILS

AND E-502 FOR TERTIARY

SEE SHEETS E-212, E-213,

SEE SHEET E-211

5'-3" TO TOP)

(APPROX. DEPTH

EXISTING DUCTBANK

PANELBOARD REPLACEMENT AREA (SEE SHEETS E-208, E-209, AND E-210)

" 812

VCB

NEW

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1:44:37 PM 8/6/2018 PD: AEC_pdf.pltcfg DS: AEC_Screen.dscript

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EXISTING AUTOTRANSFORMER BANK

SWITCHGEAR OVERHEAD BUS

EXISTING 13.8KV STATION SERVICE

(SEE SHEET E-203 FOR DETAILS)

TRANSFORMER

GROUNDING

NEW AUTOTRANSFORMER (BY OTHERS)

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RESISTOR

GROUNDING

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SEE NOTE 6

NEW NOTES:

NOT TO SCALE

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REGULATOR

VOLTAGE

SURROUNDING GRADE AND PROVIDE A 6" MINIMUM DEPTH.

2. REPLACE CRUSHED ROCK AFTER INSTALLING NEW DUCTBANK TO MATCH THE

1. REPAIR GROUND MAT CONNECTIONS WITH EXOTHERMIC WELDS WHERE DISTURBED.

GENERAL NOTES:

(SEE NOTE 8)

ARE NO LONGER THAN 10'-0".

8. DISTANCE IS APPROXIMATE. LOCATE NEW PAD AND VCB 812 SO THAT NEW COPPER BUSSES

DRAINAGE OF THE DUCT BANK.

TOWARD THE BOTH MANHOLES AT A MINIMUM OF 3 INCHES PER 100 FEET TO ALLOW PROPER

AND SLOPED DOWNWARD FROM THE HIGHEST POINT IN THE CENTER AT THE CROSSING POINT

7. NEW DUCT BANK SHALL BE BURIED AT 3'-0" AT THE CROSSING POINT WITH EXISTING DUCT BANK

THE DUCT BANK TRENCH.

ALONG A CLEAN LINE. PROTECT THE SURROUNDING SIDEWALK DURING EXCAVATION OF

SPECIFICATION 03 60 00.00 26 CONCRETE DEMOLITION AND REPAIR. CUT THE CONCRETE

6. REPLACE SECTION OF SIDEWALK AT NEW DUCTBANK CROSSING POINT. REFERENCE

CONDUCTORS ON EACH SIDE OF AIR BREAK SWITCHES 825, 829, AND 827.

WITH NEW AIR BREAK SWITCHES. ALSO REMOVE AND REPLACE EXISTING #4/0 STRD. CU

5. EXISTING AIR BREAK SWITCHES 825, 829, AND 827 SHALL BE REMOVED AND REPLACED

>1#4/0 AWG BARE COPPER GROUNDING CABLE FROM THE GROUNDING RESISTOR TO GROUND.

TRANSFORMER AND THE NEW GROUNDING RESISTOR.

>1#4/0 AWG, 15KV IN EXISTING CONDUIT 5R6-2" BETWEEN THE NEW GROUNDING

GROUNDING TRANSFORMER.

>3#1 AWG,15KV IN EXISTING CONDUIT 5R5-4" BETWEEN NEW VCB838 AND THE NEW

FOLLOWS:

WITH THE GROUNDING RESISTOR AND GROUNDING TRANSFORMER SHALL ALSO BE REPLACED AS

NEW GROUNDING TRANSFORMER ON A NEW CONCRETE PAD. ALL CONDUCTORS ASSOCIATED

REPLACED WITH A NEW GROUNDING RESISTOR ON THE EXISTING CONCRETE PAD AND A

4. EXISTING GROUNDING RESISTOR AND GROUNDING TRANSFORMER SHALL BE REMOVED AND

500KVA VOLTAGE REGULATOR ON A NEW OIL CONTAINMENT CONCRETE PAD.

3. EXISTING 450KVA VOLTAGE REGULATOR SHALL BE REMOVED AND REPLACED WITH A NEW

ALL CONNECTIONS PROPERLY CLEANED OF OXIDE BEFORE REINSTALLATION.

REMAIN CONTINUOUS. EXISTING COPPER TUBING THAT IS REMOVED MAY BE REUSED WITH

WHERE CLR'S WERE REMOVED TOWARD NEW VCB 822 SO THAT BUS CONNECTIONS

SHALL BE REMOVED. MOVE VERTICAL BUS MEMBERS INCLUDING BUS TAPS AND ELBOWS

2. EXISTING 3 X 0.5 OHM, 400A, 13.8KV, OUTDOOR, CURRENT LIMITING REACTORS (CLR'S)

PADS WITH VCB'S HAVING THE SAME DESIGNATIONS AS THE EXISTING ACB'S.

BE REMOVED AND REPLACED WITH NEW OUTDOOR SWITCHGEAR ON THE EXISTING CONCRETE

1. EXISTING OUTDOOR SWITCHGEAR WITH ACB'S 822, 832, 834, 836, 838, AND 842 SHALL

ENTRANCE

TUNNEL

13.8 KV MAIN VCB

13.8 KV SWITCHGEAR

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DS 2191

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1 2 3 4 5 6 7 8 9 10 1311 12 14 15

17 1817 18

115kV SWITCHYARD

230kV SWITCHYARD

ACCESS ROAD

AT2

GCB

62DS

EXISTING #4/0 GROUND MAT CONDUCTORS

#4/0 GROUND MAT EXTENSIONS TO BE CONNECTED TO

AUTOTRANSFORMER AT2

REVISED SWITCHYARD LAYOUT

AS SHOWN (TYP. OF 12 IN THE 115kV SWITCHYARD)

TO NEW AND EXISTING #4/0 GROUND MAT CONDUCTORS

#4/0 POST INSULATOR GROUND LEAD TO BE CONNECTED

CONNECTED TO EXISTING #4/0 GROUND MAT CONDUCTORS

#4/0 SUPPORT STRUCTURE GROUND LEAD (TYP. OF 2) TO BE

GROUND ROD (TYP. OF 2), SEE NOTE 2

TO EXISTING #4/0 GROUND MAT CONDUCTORS

#4/0 GROUND MAT EXTENSIONS TO BE CONNECTED

CONNECTED TO NEW AND EXISTING #4/0 GROUND MAT CONDUCTORS

#4/0 DEAD-END STRUCTURE GROUND LEAD (TYP. OF 2) TO BE

GCB

(TYP. OF 8 IN THE 115kV SWITCHYARD)

TO NEW #4/0 GROUND MAT CONDUCTORS AS SHOWN

#4/0 DISCONNECT GROUND LEAD TO BE CONNECTED

(TYP. OF 4 IN THE 115kV SWITCHYARD)

TO NEW #4/0 GROUND MAT CONDUCTORS AS SHOWN

#4/0 BREAKER GROUND LEAD TO BE CONNECTED

SWITCHYARD)

(TYP. OF 8 IN THE 230kV

MAT CONDUCTORS AS SHOWN

TO EXISTING #4/0 GROUND

LEAD TO BE CONNECTED

#4/0 DISCONNECT GROUND

SWITCHYARD)

(TYP. OF 4 IN THE 230kV

MAT CONDUCTORS AS SHOWN

TO EXISTING #4/0 GROUND

LEAD TO BE CONNECTED

#4/0 BREAKER GROUND

230kV SWITCHYARD)

(TYP. OF 2 IN THE

MAT CONDUCTORS

EXISTING #4/0 GROUND

TO BE CONNECTED TO

#4/0 CCPD GROUND LEAD

SUPPORT STRUCTURE (TYP.)

GCB

MAT CONDUCTORS AS SHOWN (TYP. OF 2 IN THE 115kV SWITCHYARD)

#4 LIGHT POLE GROUND LEAD TO BE CONNECTED TO NEW #4/0 GROUND

MAT CONDUCTORS AS SHOWN (TYP. OF 2 IN THE 230kV SWITCHYARD)

#4 LIGHT POLE GROUND LEAD TO BE CONNECTED TO EXISTING #4/0 GROUND

CONNECTED TO EXISTING #4/0 GROUND MAT CONDUCTORS

#4/0 EQUIPMENT GROUND CONDUCTOR (TYP. OF 2) TO BE

CONNECTED TO EXISTING #4/0 GROUND MAT CONDUCTORS

#4/0 REBAR GROUND LEAD (TYP. OF 2) TO BE

DS: AEC_Screen.dscriptPD: AEC_pdf.pltcfg1:47:06 PM 8/6/2018

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BE VERIFIED BY CONTRACTOR.

EXISTING CONDITIONS SHALL

FOR INFORMATION ONLY

EQUIPMENT SHALL BE AS REQUIRED BY THE SPECIFICATIONS.

LOCATIONS ONLY. SCOPE AND REQUIREMENTS FOR NEW

THESE DRAWINGS SHOW EXISTING CONDITIONS AND

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OA79G-002

OA79E-201

OA79E-214

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