0 100'
SCALE IN FEETCROSSROADS SUBSTATION SITE LAYOUT
SCALE: 1" = 100'
250' 500'25'50'75'100'
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CROSSROADS SUBSTATION CMAD ELEVATION (FOR REFERENCE)
SCALE: N.T.S.
CROSSROADS SUBSTATION CMAD ELEVATION (FOR REFERENCE)
SCALE: N.T.S.
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FINISH SUBSTATION YARD AS DETAILED AND AS PER BARRICK STANDARDS
AND PROJECT SPECIFICATIONS.
GENERAL NOTES:
1
THE CONTRACTOR SHALL BE RESPONSIBLE TO LOCATE AND DELIVER THE
SURFACE ROCK MATERIALS TO THE SITE. MATERIAL TO BE INSTALLED
THROUGHOUT THE SUBSTATION YARD AND 5' OUTSIDE THE PERIMETER OF
THE FENCE.
2
THE CONTRACTOR SHALL PROVIDE TEST RESULTS FROM A SOILS
LABORATORY VERIFYING THE MATERIAL TO BE USED FOR THE SURFACE ROCK
MEETS THESE SPECIFICATIONS.
3
THE SURFACE ROCK MATERIAL SHALL BE CLEAN, CRUSHED MATERIAL
MEETING THE FOLLOWING REQUIREMENTS:
GRADATION:
U.S. STANDARD SIEVE SIZE PERCENTAGE PASSING BY WEIGHT
1-1/2" 100%
3/4" 0% TO 25%
No. 4 0% TO 5%
No. 200 0%
4
FRACTURED FACES:
ALL PARTICLES SHALL HAVE A MINIMUM OF ONE FRACTURED FACE, AND
SEVENTY PERCENT OF ALL PARTICLES SHALL HAVE A MINIMUM OF THREE
FRACTURED FACES.
5
RESISTIVITY:
TWO SAMPLES OF SURFACE ROCK SHALL BE TESTED IN CONFORMANCE WITH
ASTM G57-78, THE SAMPLES SHALL HAVE A MEASURED RESISTIVITY OF
GREATER THAN 3000 OHM-METERS.
6
THE SUBSTATION AREA SHALL BE GRADED TO DRAIN AWAY FROM THE
SUBSTATION. GRAVELED AREAS SHALL BE GRADED WATERED AND
COMPACTED.
7
THE AREA SURROUNDING THE SUBSTATION SITE SHALL BE CLEANED OF ALL
CONSTRUCTION MATERIAL AND DEBRIS.
8
CORTEZ CROSSROADS SUBSTATION ELEVATION
SCALE: 1" = 20'
NOMINAL
VOLTAGE
(LL)
13.8KV
120KV
MINIMUM
TO
GROUNDED
PARTS FOR
RIGID BUS
(IN)
60"
24"
MINIMUM
METAL
TO METAL
FOR
RIGID BUS
(IN)
48"
18"
MINIMUM
LIVE PARTS
ABOVE
GROUND
PERSONNEL
SAFETY
(FT)
12'
10'
MINIMUM LIVE
PARTS
ABOVE
GROUND
OVER DRIVE
AREAS IN
SUBSTATION
(FT)
30'
20'
MINIMUM
SUBSTATION
FENCE @
8' ABOVE
GROUND TO
NEAREST
ENERGIZED
PART (FT)
20'
10'
ALL SURFACES OF ALL CONNECTIONS MADE WITH ALUMINUM CABLE SHALL BE
FIRST CLEANED, COATED WITH AN OXIDE INHIBITING COMPOUND, AND
BRUSHED WITH A STAINLESS STEEL BRUSH TO DISLODGE OXIDES. ALL
HARDWARE AT BOLTED CONNECTIONS SHALL BE COATED WITH THE
COMPOUND AFTER THE CONNECTION IS MADE.
9
THE GROUNDING CONDUCTORS ON EQUIPMENT AND STRUCTURES SHALL BE
4/0 COPPER, ATTACH TO 4/0 COPPER GROUND GRID WITH CADWELD
CONNECTOR, OR APPROVED COMPRESSION CLAMP.
10
ALL BOLTS, NUTS, WASHERS, LOCK WASHERS, AND BELLEVILLE WASHERS ON
ENERGIZED PARTS (IE. BUS SUPPORT CLAMPS ON INSULATORS, CONNECTORS,
ETC.) SHALL BE STAINLESS STEEL. ALL OTHER HARDWARE TO BE GALVANIZED,
UNLESS APPROVED BY OWNER OR ENGINEER. ALL HARDWARE THAT IS
DEFORMED OR DAMAGED SHALL BE REPLACED BY THE CONTRACTOR.
11
OPEN TRENCHES SHALL BE MARKED WITH APPROPRIATE BARRIERS AND
BARRIER TAPE AT ALL TIMES. FINAL BACKFILL SHALL MATCH SURROUNDING
AREAS. COMPLETE BACKFILL IN 8” LIFTS. 90% MODIFIED PROCTOR DENSITY
COMPACTION SHALL BE MET PRIOR TO STARTING THE NEXT LIFT.
12
INCOMING STRUCTURE ELEVATION
* THESE ARE THE MINIMUM REQUIRED CLEARANCES ABOVE GROUND INSIDE
SUBSTATIONS FOR THE VOLTAGE LEVELS SHOWN.
THE CONTRACTOR SHALL REVIEW THE EQUIPMENT AND PROPOSED
EQUIPMENT PLACEMENT AND ORIENTATION FOR CONDUIT STUB-UP AND
ENTRY DETAILS PRIOR TO FINAL PLACEMENT OF CONDUIT.
13
BURIED CONDUIT SHALL BE BACKFILLED WITH 1500PSI RED CONCRETE
SLURRY A MINIMUM TWO INCH BED AND COVERED WITH MINIMUM TWO INCHES
PRIOR TO BACKFILLING. PROVIDE “DANGER - BURIED CABLE” MARKER TAPE
12” ABOVE THE CONDUITS.
14
WHERE A GROUND CONDUCTOR PASSES THROUGH FLOORS, SLABS, WALLS,
ETC. THE CONTRACTOR SHALL SUPPLY AND INSTALL PVC SLEEVES OF THE
REQUIRED SIZE AND LENGTH. SLEEVE TO EXTEND A MINIMUM OF 1" BEYOND
FINISHED FLOOR, SLAB, WALL, ETC. TO PROVIDE PHYSICAL PROTECTION.
15
THE FENCE GROUNDING SYSTEM SHALL BE INSTALLED AS DETAILED AND
CONNECTED TO THE SUBSTATION GROUND GRID AT LOCATIONS SHOWN ON
THE PROJECT DRAWINGS.
16
WARNING SIGNS SHALL BE INSTALLED ON ALL FENCE GATES AND ON
PERIMETER FENCING AT A MAXIMUM SPACING OF 50FT. SIGN SHALL CARRY
THE WORDING:
"DANGER HIGH VOLTAGE"
"UNAUTHORIZED PERSONNEL KEEP OUT"
17
NAMEPLATES AND TAGS
LAMACOID LABELS SHALL BE USED CONSISTING OF 3MM THICK 3 LAYER
WHITE/BLACK/WHITE LAMINATED PLASTIC WITH CHAMFERED EDGES.
LETTERING SHALL BE BLACK. WARNING LABELS SHALL BE PROVIDED AS PER
THE NEC FOR ALL ELECTRICAL ROOMS, FENCES AND EQUIPMENT. COLORS
AND SIZES SHALL BE AS PER NEC REQUIREMENTS. LAMACOID LABELS SHALL
BE ATTACHED TO ALL EQUIPMENT WITH INDUSTRIAL GRADE ADHESIVE. THIS
INCLUDES ALL MAJOR SUBSTATION EQUIPMENT (TRANSFORMERS,
DISCONNECT SWITCH, CIRCUIT SWITCHER, CIRCUIT BREAKERS, VOLTAGE
REGULATOR, RECLOSERS, CAPACITOR BANKS) AND ALSO ALL SMALL POWER
EQUIPMENT INCLUDING RECEPTACLES, LIGHTS, JUNCTION BOXES, ETC.
POWER AND LIGHTING PANELS SHALL BE IDENTIFIED WITH PHASE, VOLTAGE
AND PANEL DESIGNATION.
18
COMMISSIONING WORK WILL BE PERFORMED IN TWO PHASES. THE
CONTRACTOR IS RESPONSIBLE TO ENSURE THAT ALL EQUIPMENT CONTROLS
AND ALARMS FUNCTION AS DESIGNED AND THAT ALL EQUIPMENT IS INSTALLED
AND ADJUSTED PER MANUFACTURER'S INSTRUCTIONS. THE CONTRACTOR
SHALL PROVIDE MANPOWER TO WORK WITH THE BARRICK TESTING
CONTRACTOR TO COMMISSION ALL SUBSTATION EQUIPMENT, CONTROL AND
INDICATION CIRCUITS.
20
ACCEPTANCE TESTING
ALL MEDIUM VOLTAGE CABLE (ABOVE 5KV) SHALL BE FIELD TESTED AFTER
INSTALLATION AND BEFORE BEING PLACED IN SERVICE. FIELD TESTING SHALL
CONSIST OF A DC HIGH POTENTIAL TEST. 600V CABLE USED FOR POWER
DISTRIBUTION FEEDERS SHALL BE FIELD TESTED CONSISTING OF 1000V
MEGGER TESTING. PERFORM CONTINUITY CHECKS FOR ALL CT AND CONTROL
CIRCUIT WIRING TO VERIFY TERMINATION POINTS & WIRE NUMBERS ARE
CONSISTENT. ALL FAILED CABLES SHALL BE TOTALLY REPLACED WITH NO
ADDITIONAL COST TO THE OWNER.
19
CORTEZ CROSSROADS SUBSTATION YARD LAYOUT
SCALE: 1" = 20'
T21
T20
CS20
DS20
DS21
CS21
NGR21
NGR20
E-H
OU
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M20
M21
F107
TIE
F105
F103
F101
F102
F104
F106
F108
120KV SUBSTATION
NONE
A
SCALE
REFERENCE DRAWINGS
DATE
DATE
DATE
DESIGNED
CHECKED
DRAWN
BARRICK CORTEZ MINE
CRESCENT VALLEY, NEVADA
CROSSROADS SUBSTATION
BY DATEREMARKS:
-
-
-
-
30MVA, 120KV - 13.8KV
-
SITE PLAN
& GENERAL INFORMATION
BY DATEREMARKS:
-
-
-
-
BY DATEREMARKS:
-
-
-
-
BY: JAE DATE: 7-10-2013REMARKS:
ISSUED FOR BID
A
PROFESSIONAL ENGINEER'S STAMP
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8
810
1
ELQUIST
ELECTRICAL
JOSEPH A.
G
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FN
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EXP: 12-31-2014
DATE: ____-____-____
CORTEZ
8/15/2013 8:58:50 AM
