Am4 Attach04 20200212 COS DEICE IFC PLANS.pdf

Know what's below.

before you dig.Call

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737 HAZARD

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AZAR

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PHASING SCHEDULE

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TAXILANE CENTERLINE PROFILE

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UNAUTHORIZED PERSONNEL

PROHIBITED

VIOLATORS WILL BE PROSECUTED TO

THE FULL EXTENT OF THE LAW

1+00.00

2+00.00

3+00.00

4+00.00

6+00.00

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FIXTURE &

REFLECTOR

LOCATION TABLE

FIXTURE &

REFLECTOR

LOCATION TABLE

FIXTURE &

REFLECTOR

LOCATION TABLE

FIXTURE &

REFLECTOR

LOCATION TABLE

FIXTURE &

REFLECTOR

LOCATION TABLE

DEICE

DEICE

1 2 3

1 322

DEICE

DEICE

OFFICE

GENERATOR ROOM

CCR ROOM

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L

E C

T R

I C

A L

4" MIN

PLAN VIEW

SECTION VIEW

ELECTRICAL

COVER

10A

PAD AND CONDUIT DETAILS

6'-0"

PRECAST PAD

2 (ITEM #194-115-102)

APPROX WEIGHT= 2000 LBS

INSERTS (4)

SIDE LIFTING

25"

6'-0"

20"

(SEE NOTE 5)

11"

4"

6"

GROUND

ROD

6"

3"

5'-0"

45-150 kVA TRANSFORMER PAD

(SEE NOTE 5)

WITH END BELL (LOOP

4" PRIMARY CONDUIT

FEED OPTION DASHED)

6"

SECONDARY BARRIER

IN TRANSFORMER

35"

15"

(SEE NOTE 5)

1 1

2 2

3 3 3

16"

(SEE NOTE 5)

22"

LINE OF MINIMUM

SECONDARY

COMPARTMENT

SIZE (SEE NOTE 5)

NOTE

NO FIELD BENDING OF CONDUIT IS ALLOWED,

ONLY FACTORY BENDS ARE ACCEPTABLE.

3 3 3

2 2

ROW 1

ROW 2

ROW 3

1-1/2" CT METERING

CONDUIT WITH END

BELL AT FRONT LEFT

OR RIGHT OF

SECONDARY

CONDUITS, WHEN

REQUIRED (TYPICAL)

(9) 3-1/2" DUCTS WITH BELL ENDS (SEE NOTE 3)

DETAIL SHOWN IS BASED ON MAXIMUM

SECONDARY CONDUIT DETAIL

6'-0"

PRECAST PAD

2 (ITEM #194-115-102)

APPROX WEIGHT= 2000 LBS

INSERTS (4)

SIDE LIFTING

25"

6'-0"

13"

35"

22"

(SEE NOTE 6)

11"

4"

6"

GROUND

ROD

6"

6"

5'-0"

4" PRIMARY CONDUIT

WITH END BELL (LOOP

FEED OPTION DASHED)

6"

300-2500 kVA TRANSFORMER PAD

(SEE NOTE 6 & 18)

ELECTRIC DISTRIBUTION CONSTRUCTION STANDARDS

APPROVED AS OF:

3-12-2018

PADMOUNT 12.5KV 3-PHASE TRANSFORMER INSTALLATIONS 7-6 PG. 2/3

3 3

4 4

22"

IN TRANSFORMER

SECONDARY BARRIER

1-1/2" CT METERING

CONDUIT WITH END BELL

AT FRONT LEFT OR RIGHT

OF SECONDARY CONDUITS,

WHEN REQUIRED (TYPICAL)

SECONDARY CONDUIT DETAIL

DETAIL SHOWN IS BASED ON MAXIMUM

(16) 3-1/2" DUCTS WITH BELL ENDS (SEE NOTE 3)

3 3

4 4

ROW 1

ROW 2

ROW 3

ROW 4

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TRENCHING GUIDE

FINAL GRADE

24" MIN

30" MAX

30" MIN

42" MAX

42" MIN

60" MAX

A

NESC

18"

MIN

NESC

24"

MIN

NESC

30"

MIN

NOTE:

SEE NOTES 6 & 7 FOR DEPTH

INSPECTION REQUIREMENTS

B

COLORADO SPRINGS UTILITIES ELECTRIC

REQUIRED STANDARD MINIMUM CONDUIT/

CABLE COVER

12" MIN

NESC MINIMUM COVER IS 24"

(COLORADO SPRINGS UTILITIES

ADOPTED A LARGER MINIMUM COVER

FOR ALL VOLTAGES TO ACCOUNT

FOR POTENTIAL GRADE CHANGES).

30" TYP

SERVICE

GAS

NESC MINIMUM COVER ABOVE TOP OF

CABLES (OR DIRECT BURIED DUCT-

COLORADO SPRINGS UTILITIES STANDARD)

PER NESC RULE 352D2 (WITHOUT

SUPPLEMENTAL PROTECTION- SEE NOTE 2,

REQUIRES WRITTEN AUTHORIZATION FROM

A COLORADO SPRINGS UTILITIES ELECTRIC

DEPARTMENT REPRESENTATIVE).

FINAL GRADE

6"

12"-18"

600 VOLT SECONDARY

SERVICE

FIGURE- B

TYPICAL TRENCH CROSSING DEPTHS

CABLE/ CIRCUIT

TYPE

C

FIGURE- A

TYPICAL TRENCH DEPTHS

E-LOK TRANSITION

COUPLING AND PLUG

TRANSITION COUPLINGS PROVIDED

BY COLORADO SPRINGS UTILITIES

SIZE AND TYPE

2" E-LOK

6" E-LOK

4" E-LOK

2" FLEX, 2-CLAMP

4" FLEX, 2-CLAMP

6" FLEX, 2-CLAMP

NOTES:

ITEM NUMBER

194-214-218

194-214-220

194-214-230

194-214-407

194-214-408

194-214-410

42" MIN

60" MAX

SEE NOTE 4

FIGURE- C

BORED-IN STUB CONFIGURATION

1. Trench width to be a minimum of 3" on each side of conduit or conductor, to provide for proper compaction (see table above).

2. Duct shall have a 3" minimum concrete envelope when CSU minimum cover depths are not achieved. Ducts shall also be installed with plastic base spacers to maintain a consistent 3" of concrete below duct. See Electric Distribution

Construction Standard (EDCS) 11-2 & 11-3.

3. See EDCS 18-304 for clearances required by NESC from UG electric conduit/cable to other UG facilities (communication, water, sewer, foundations, sub-structures, etc).

4. Colorado Springs Utilities requires an E-LOK type transition coupling at plugged end of bore, to be relocated to nearest

42" depth of stub (typically within 6'-10') and used for attachment of contractor supplied pipe. Contractor has the option of picking up bored pipe at 42" depth or digging parallel and lowering end of stub if direction of contractor's ditch allows.

5. Colorado Springs Utilities acknowledges difficulties in blowing and pulling wire in ducts of dissimilar inside diameters, and accepts this responsibility if contractor supplied pipe meets Electric Distribution Construction Standard 11-3 and is installed properly.

6. If required depth of trench or bored-in conduit cannot be met by CSU contractor, new proposed depth must be approved in advance by CSU inspector. Inspector must be notified a minimum of three days in advance of bore start time. Inspector may require utility or other locate documentation to verify existing infrastructure depths. Potholing may be required at any time, at the discretion of the CSU inspector, to prove any bore depth. Conduit will be required for any installation that exceeds CSU minimum or maximum depth as shown in Figure A. See also ELESS 8.06 and 10.01h for service inspection responsibilities.

7. CSU contractor to submit bore log to CSU inspector within 7 days of completion of bore installation.

ELECTRIC DISTRIBUTION CONSTRUCTION STANDARDS

APPROVED AS OF:

12-15-2016 non-100 series items treated as such.

- Denotes minor material items for all

TRENCHING, BACKFILL/COMPACTION, CONCRETE MIXES, & AGGREGATE BASE COURSE MATERIALS

11-1 PG. 1/6

42" MIN

60" MAX

PL

6'-10' TYP

SPECIFIED TERMINAL POINT

OF BORED-IN DUCT (SUCH

AS PROPERTY LINE)

A

C

B

TYPICAL TRENCH

WIDTH

STREETLIGHT FEEDS

SECONDARY

PRIMARY 24"

6"

6"

MAXIMUM VOLTAGE

MAX. 150 VOLTS PHASE TO GROUND

601-50,000 VOLTS PHASE-TO-PHASE

0-600 VOLTS PHASE-TO-PHASE

NOTE:

SEE FIGURE- A FOR TYPICAL

DEPTH REQUIREMENTS

FOUNDATION COMPACTION SPECIFICATION FOR PADMOUNTED EQUIPMENT

1. Colorado Springs Utilities recommends experienced personnel who understand the importance of moisture for compacting soils and the characteristics of expansive soils.

2. Before any backfilling or compaction operations are started, inspect all conduit spacings and riser heights. Make sure they meet the construction standard specified for the equipment to be installed.

3. All pads pre-cast or poured on site shall project a minimum of 4" above grade.

4. Excavate a minimum of twelve inches beyond perimeter of pad and a minimum of 36" deep.

5. The first twelve inches of backfill shall be free from stones, rock, or other material that might damage the cable or conduit. Selected backfill shall contain no soil material larger than 1/2" in diameter.

6. When suitable, as determined by soils test, use native material compacted in accordance with the following:

a. For cohesive soils, compact to 87% maximum Modified Proctor dry density at ± 2% of optimum moisture content (or 92% maximum

Standard Proctor dry density at ±2% of optimum moisture content).

b. For cohesionless soils, compact to 85% maximum Modified Proctor dry density at -5% to +3% of optimum moisture content (or 90% maximum Standard Proctor dry density at -5% to +3% of optimum moisture content). Prior to and during compaction, materials shall have a moisture content as required to obtain the specified density. Thickness of horizontal layers after compacting shall not be more than 9".

c. For expansive soils, remove and replace with CDOT Class 5 or 6 soil and compact per 6b above (see gradation specifications on page 6).

7. After successful completion of the above steps, call the Colorado Springs Utilities Inspector who will arrange for compaction tests. This shall be done and approved before a concrete pad will be poured or a precast pad installed.

8. All equipment pads supporting Colorado Springs Utilities equipment shall have compaction tests and records kept by the Colorado Springs Utilities Inspector.

ELECTRIC DISTRIBUTION CONSTRUCTION STANDARDS

APPROVED AS OF:

4-18-2016

TRENCHING, BACKFILL/COMPACTION, CONCRETE MIXES, & AGGREGATE BASE COURSE MATERIALS

11-1 PG. 3/6

ON 750 KVA & LARGER:

EXTERNALLY OPERATED,

NOTE:

DE-ENERGIZED TAP

+-CHANGER 5%

SEE APPLICABLE MATERIAL

TYPE & ARRANGEMENT

SPECIFICATION FOR FUSE

TRANSFORMER TANK

H1A

H2A

H3A

TANK GROUND LUGS

H1B

H2B

H3B

F

F

LINK

H0

X0 (OR

H0/X0)

GROUND

STRAP

GROUND EYES TO THE GROUND BUS

BOND PRIMARY CABLE CONCENTRICS,

LOOP FEED OPTION

DRIVEN GROUND ROD

ONE LINE SCHEMATIC

NOTES:

1. All conduits shall be installed by the customer to Colorado Springs Utilities specifications. Refer to EDCS 11-3 for specifications on primary conduit, and EDCS 11-1 for primary/secondary conduit depths, trench backfilling and compaction, and pad compaction requirements.

2. For radial feed installation of a loop-type transformer, both primary conduits shall be installed. If one is not used, it shall be stubbed and capped at least 2' out from the front edge of the pad with an 8" UG marker installed above the end.

3. Placement of multiple secondary conduits shall be by rows from back to front, example: row 1 first, then row 2, etc. Fill back row first prior to starting the next row forward, filling front row last or used for future use.

4. Do not pour concrete in the conduit window opening unless an older style transformer is issued (see note 6). Pea gravel may routinely be used as a filler if needed.

5. For 45-150 kVA transformers, frame 9 secondary conduits maximum (3 rows of 3 conduits). Each row to fit within 15" maximum width from right side of window opening, and within 16" maximum depth from back side of window opening. The distance from the secondary compartment to the center of the primary conduit shall be 22" maximum, 10" minimum. This framing arrangement works with both current and older style transformer secondary compartment dimensions. See page 2.

6. For 300-2500 kVA older style transformers, frame 16 secondary conduits maximum (4 rows of 4 conduits). Each row to fit within 22" maximum width from right side of window opening, and within 22" maximum depth from back side window opening. This framing arrangement works with current style transformer secondary compartment dimensions. See page 2.

7. If an older style transformer is issued and it does not completely cover the window opening, form and fill the exposed area of window and under cabinet with concrete. This keeps energized equipment from being accessible from the outside, maintains cabinet security and supports the cabinet.

8. All vertical primary conduit bends shall have a minimum 36" radius. For primary 4" conduit runs with three (maximum allowed) 90° bends and/or a length of 300' and longer, the vertical conduit bend into the transformer pad shall be Fiberglass or GRC material. Otherwise, primary 4" conduit runs with two or less 90° bends and a length of less than 300', the vertical conduit bend into the transformer pad may be PVC material. (See ELESS book, Appendix C, Table 3 for 4" 90°, 36" radius fiberglass elbow material requirements).

9. Field Engineer to specify EDCS 19-9 for pads poured-in-place when access with precast pad is not available.

10. NESC-314B: Conductive-material ducts and riser guards that enclose electric supply lines, or are exposed to contact with open supply conductors, shall be effectively grounded.

11. When terminating three phase loop feed transformers, cables using conduit on the left side shall be terminated to the HxA bushings. Cables using conduit on the right side shall be terminated to HxB bushings to prevent crossing of primary cables.

12. All secondary conductors shall be installed and terminated by customer to Colorado Springs Utilities EDCS 7-15.

13. Leave slack in secondary and primary cables to permit transformer removal and replacement for maintenance, train primary cables to permit parking elbows.

14. Leave sufficient slack on concentric neutrals to allow removing elbows without disconnecting neutrals.

15. Ground loop in all cases shall be installed in front of primary cables.

16. CAUTION: Ground strap on neutral bushing shall remain connected to tank in all cases (except for XO bushing in special cases, such as 2400V motor loads), tank will be energized to primary voltage if primary neutral tank grounds are disconnected and one open primary phase exists on the source side of the transformer without H0 bushings.

17. NESC Rule 384C: Bond all above ground metallic supply and communication enclosures that are separated by 6 feet or less. Use minimum #6 bare copper wire direct buried a minimum 18" below grade, to a suitable bolted or screw connection that can be temporarily opened when locating cables. Treat open ground connections as energized!

18. For secondary voltage over 480V, refer to manufacturer's drawings to determine suitable pad size, see also pads in 7-7.

19. It is the customer's responsibility to seal the customer's secondary ducts from water entering the customer's equipment or building that originate from a Colorado Springs Utilities' transformer or vault.

20. No conduit field bends are allowed, only factory conduit bends are acceptable.

ELECTRIC DISTRIBUTION CONSTRUCTION STANDARDS

APPROVED AS OF:

4-12-2018

PADMOUNT 12.5KV 3-PHASE TRANSFORMER INSTALLATIONS 7-6 PG. 3/3

CUSTOMERS INSTALLING

ANY METAL CONDUIT SHALL

EFFECTIVELY GROUND THEM

IN PAD (SEE NOTE 10)

BUSHING INSERT GROUND TABS & ELBOW

LOOP MIN #4 CU FOR

USE AS GROUND BUS

H1

LINK & COMMON H0/X0 BUSHING)

KVA (SMALLER SIZES HAVE INTERNAL

H0 ONLY PRESENT ON SOME 500-2500

H2

X1,X2,X3

PHASOR DIAGRAM

X0H0

H3 X1 X3

X2

DRIVE-ON GALV. CAP

SCREW-IN

BUMPER POST

4"

4"

ITEM #194-111-100 (SEE

SCREW-IN BUMPER POST,

NOTE 1)

FOR DRAIN-OFF

1" UP-SLOPE

NOTES:

4'

1. Barricade post to be installed plumb and level across the tops from one to another when two are used.

3'

2. Post is galvanized- no painting required.

3. Post can be filled with sack mix of concrete.

4. Post requires 3,000-4,000 ft-lbs. installation torque.

5. Use bands of reflective tape (Item #100-136-012) on top of posts to warn motorists, cyclists, etc. The first band should be no lower than 8" from the top of the post.

8"

THREE BANDS OF 4"

REFLECTIVE TAPE

SPACED 4" APART

(ITEM #100-136-012)

4"

4'

4" OR 6" IPS X 6' - 6" STEEL

GRC PIPE, ITEM

#194-218-114 (SEE NOTE 2)

2"-3" UP-SLOPE

FOR DRAIN-OFF

4'

NOTE:

USE 2" TAPE TO STORE 10"

EYEBOLT WHEN NOT USED

FOR LIFTING (SEE DETAIL)

2"-3" UP-SLOPE

FOR DRAIN-OFF

3500 PSI CONCRETE

(SEE NOTE 4)

3'

2-1/2'

3500 PSI CONCRETE

(SEE NOTE 4)

6"

REMOVABLE

CAPPED-PIPE BUMPER POST

PIPE BUMPER POST

CONCRETE-FILLED

BE USED ONLY WHEN SCREW-IN BUMPER

THIS IS NON-PREFERRED POST AND WILL

POST CANNOT BE USED.

NOTES:

1. Bumper posts to be installed plumb and level across the tops from one to another when two are used.

2. Use scrap 4" or 6" GRC pipe and paint with two coats of silver or yellow paint, unless conduit piece is new.

3. Dig 20" x 36" hole- conduit to be centered in hole.

4. Concrete for anchoring posts to be 3500 psi T&D

Mix #2, approximately 8.3 Cu.Ft./Pole (see EDCS

11-1, pg 5).

5. For removable post (Item #194-111-150) assemble with scrap 4" PVC duct sleeve, 10"x

1/2" eyebolt, 4" PVC pipe plug, 2" black tape and

4" orange reflective tape as shown.

6. Use bands of reflective tape on top of posts to warn motorists, cyclists, etc. (Item #100-136-012).

The first band should be no lower than 4" from the top of the post.

7. Intermediate posts across at least one side

(preferably the front) of the apparatus shall be of the removable type, all others can be permanent.

CUID EXAMPLE:

ELECTRIC DISTRIBUTION CONSTRUCTION STANDARDS

APPROVED AS OF:

9-1-2016

E.BUMPER-POST-SCREW-IN

BUMPER POST INSTALLATIONS 15-2 PG. 1/2

THIS POST IS USED BETWEEN PERMANENT POSTS

WHEN THE DISTANCE BETWEEN THE PERMANENT

POSTS EXCEED 6' AND POST PLACEMENT MAY

INTERFERE WITH EQUIPMENT OPERATION.

SLEEVE (4" PVC DUCT

WITH 4" PVC PLUG)

INSTALL 4" PVC SLEEVE

2" MIN - 3" MAX ABOVE

CONCRETE UP-SLOPE

FILL WITH 3500 PSI CONCRETE

MIX AND VIBRATE TO

ELIMINATE AIR POCKETS,

ROUND TOP FOR DRAINAGE.

4"

THIS IS THE PREFERRED POST TO BE USED

(USE CONCRETE-FILLED BUMPER POST IF

USE IS IMPRACTICAL DUE TO PROXIMITY

TO BURIED LINES OR SUBSTRUCTURES).

THREE BANDS OF 4" TAPE

SPACED 4" APART (ITEM

ITEM #194-111-150 (SEE

3" IPS X 7' STEEL GRC PIPE,

#100-136-012)

NOTE 5)

3" GRC CAP

4"

TRAFFIC FREE ZONE

2' 6'

WOOD POLE

GUY WIRES

DIRECTION OF

18"

GUY WIRE ANCHOR

ALONG OVERHEAD DOWN GUYS

BUMPER POST PLACEMENT

PLACE BUMPER POSTS NEXT TO DOWN GUYS

LOCATED IN PARKING LOTS OR ALLEYS

PERMANENT

BUMPER POSTS

6'

2'

TRAFFIC FREE ZONE

2'

6' (MAX)

FRONT

6' (MAX)

FRONT

2'

6' (MAX)

FRONT

TRAFFIC FREE ZONE

6' (MAX)

6' (MAX)

1 REMOVABLE

BUMPER POST PLACEMENT

AROUND PADMOUNT APPARATUS

BUMPER POST

6' (MAX)

A

SEE NOTE 5

B

A

B

SEE NOTE 5

REMOVABLE BUMPER POST PLACEMENT

NOTES:

1. Barrier posts shall be set at the corners of pad-mounted apparatus adjacent to traffic areas. The posts are to be placed a minimum of 2' to the side and 2' from the corner of the concrete pad and will allow the door(s) of the apparatus to be opened to the locking positions.

2. If the distance between two corner posts exceeds 6', an intermediate post(s) should be added between the existing posts.

3. Intermediate posts across the front of the apparatus shall be of the removable type to allow full access to the apparatus.

4. If the distance between the corner of the apparatus and the traffic free area exceeds 6', a barrier post will be installed at the corner of the apparatus adjacent to the traffic free zone.

5. Intermediate (removable) posts shall be placed in line with equipment doors so as not interfere when doors are fully opened.

ELECTRIC DISTRIBUTION CONSTRUCTION STANDARDS

APPROVED AS OF:

9-1-2016

BUMPER POST INSTALLATIONS 15-2 PG. 2/2