Sol_140R1024R0008_Amd_0003.pdf

(x)

140R1024R0008 x x

1 copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted ; or (c) By separate letter or electronic communication which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGEMENT TO BE

RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR

OFFER. If by virtue of this amendment you desire to change an offer already submitted , such change may be made by letter or electronic communication, provided each letter or electronic communication makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

x

Boise ID 83706-1234 1150 N. Curtis Road, Ste. 100

R10

Acquisition Management Division Regional Office Pacific Northwest Region Bureau of Reclamation

04/18/20240003

13. THIS ITEM ONLY APPLIES TO MODIFICATION OF CONTRACTS/ORDERS. IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

12. ACCOUNTING AND APPROPRIATION DATA (If required) is not extended.is extended, Items 8 and 15, and returning

Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended , by one of the following methods: (a) By completing

The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

FACILITY CODE CODE

10B. DATED (SEE ITEM 13)

10A. MODIFICATION OF CONTRACT/ORDER NO.

9B. DATED (SEE ITEM 11)

9A. AMENDMENT OF SOLICITATION NO.

CODE

8. NAME AND ADDRESS OF CONTRACTOR (No., street, county, State and ZIP Code)

7. ADMINISTERED BY (If other than Item 6)CODE 6. ISSUED BY

PAGE OF PAGES

4. REQUISITION/PURCHASE REQ. NO.3. EFFECTIVE DATE2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO. (If applicable)

1. CONTRACT ID CODE

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

01/22/2024

CHECK ONE A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority) appropriation data, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

E. IMPORTANT: Contractor is not is required to sign this document and return __________________ copies to the issuing office.

ORDER NO. IN ITEM 10A.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

The purpose of Amendment 0003 is to extend the receipt of proposal due date, provide responses to all submitted Request for Information (RFI) questions, and to provide the following attachments and/or information on drawing edits that will require a

Non-Disclosure Agreement (NDA):

1. Receipt of Proposal Due Date has been extended: The new Due Date for Proposals is

Wednesday, May 8, 2024, at 2:00 PM Mountain Time.

2. RFI Questions and Responses (3 pages)

Continued ...

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)15A. NAME AND TITLE OF SIGNER (Type or print)

15C. DATE SIGNED 16B. UNITED STATES OF AMERICA 15B. CONTRACTOR/OFFEROR 16C. DATE SIGNED

(Signature of person authorized to sign) (Signature of Contracting Officer)

Scott Cooper

STANDARD FORM 30 (REV. 11/2016)

Prescribed by GSA FAR (48 CFR) 53.243

Previous edition unusable

Except as provided herein, all terms and conditions of the document referenced in Item 9 A or 10A, as heretofore changed, remains unchanged and in full force and effect .

ITEM NO. SUPPLIES/SERVICES QUANTITY UNIT UNIT PRICE AMOUNT

NAME OF OFFEROR OR CONTRACTOR

2 64

CONTINUATION SHEET

REFERENCE NO. OF DOCUMENT BEING CONTINUED PAGE OF

(A) (B) (C) (D) (E) (F)

140R1024R0008/0003

3. Specifications (57 pages)

- Signature Sheet(s) (1 page)

- Price Schedule A and B (2 pages)

- 05 50 00 (8 pages)

- 26 05 02 (4 pages)

- 26 05 33 (9 pages)

- 26 05 33 (1 page)

- 26 05 90 (4 pages)

- 33 72 30 (18 pages)

- 52 00 00 (10 pages)

4. Please submit NDA form for the following list of Drawings that have been revised:

Civil:

- 3-D-60020 (Rev. 1)

- 3-D-60021 (Rev. 1)

Plumbing:

- 3-D-60025 (Rev. 2)

Electrical:

- 3-D-60012 (Rev. 2)

Information Drawings:

- 3-102-2295

- 3-D-251

- 3-D-60014 (Rev. 2)

- 3-D-60016 (Rev. 2)

Standard Drawings:

- 40-D-60002

NSN 7540-01-152-8067 OPTIONAL FORM 336 (4-86)

Sponsored by GSA

FAR (48 CFR) 53.110

(x)

140R1024R0008 x x

1 copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted ; or (c) By separate letter or electronic communication which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGEMENT TO BE

RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR

OFFER. If by virtue of this amendment you desire to change an offer already submitted , such change may be made by letter or electronic communication, provided each letter or electronic communication makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

x

Boise ID 83706-1234 1150 N. Curtis Road, Ste. 100

R10

Acquisition Management Division Regional Office Pacific Northwest Region Bureau of Reclamation

04/18/20240003

13. THIS ITEM ONLY APPLIES TO MODIFICATION OF CONTRACTS/ORDERS. IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

12. ACCOUNTING AND APPROPRIATION DATA (If required) is not extended.is extended, Items 8 and 15, and returning

Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended , by one of the following methods: (a) By completing

The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

FACILITY CODE CODE

10B. DATED (SEE ITEM 13)

10A. MODIFICATION OF CONTRACT/ORDER NO.

9B. DATED (SEE ITEM 11)

9A. AMENDMENT OF SOLICITATION NO.

CODE

8. NAME AND ADDRESS OF CONTRACTOR (No., street, county, State and ZIP Code)

7. ADMINISTERED BY (If other than Item 6)CODE 6. ISSUED BY

PAGE OF PAGES

4. REQUISITION/PURCHASE REQ. NO.3. EFFECTIVE DATE2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO. (If applicable)

1. CONTRACT ID CODE

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

01/22/2024

CHECK ONE A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority) appropriation data, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

E. IMPORTANT: Contractor is not is required to sign this document and return __________________ copies to the issuing office.

ORDER NO. IN ITEM 10A.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

The purpose of Amendment 0003 is to extend the receipt of proposal due date, provide responses to all submitted Request for Information (RFI) questions, and to provide the following attachments and/or information on drawing edits that will require a

Non-Disclosure Agreement (NDA):

1. Receipt of Proposal Due Date has been extended: The new Due Date for Proposals is

Wednesday, May 8, 2024, at 2:00 PM Mountain Time.

2. RFI Questions and Responses (3 pages)

Continued ...

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)15A. NAME AND TITLE OF SIGNER (Type or print)

15C. DATE SIGNED 16B. UNITED STATES OF AMERICA 15B. CONTRACTOR/OFFEROR 16C. DATE SIGNED

(Signature of person authorized to sign) (Signature of Contracting Officer)

Scott Cooper

STANDARD FORM 30 (REV. 11/2016)

Prescribed by GSA FAR (48 CFR) 53.243

Previous edition unusable

Except as provided herein, all terms and conditions of the document referenced in Item 9 A or 10A, as heretofore changed, remains unchanged and in full force and effect .

ITEM NO. SUPPLIES/SERVICES QUANTITY UNIT UNIT PRICE AMOUNT

NAME OF OFFEROR OR CONTRACTOR

2 2

CONTINUATION SHEET

REFERENCE NO. OF DOCUMENT BEING CONTINUED PAGE OF

(A) (B) (C) (D) (E) (F)

140R1024R0008/0003

3. Specifications (57 pages)

- Signature Sheet(s) (1 page)

- Price Schedule A and B (2 pages)

- 05 50 00 (8 pages)

- 26 05 02 (4 pages)

- 26 05 33 (9 pages)

- 26 05 33 (1 page)

- 26 05 90 (4 pages)

- 33 72 30 (18 pages)

- 52 00 00 (10 pages)

4. Please submit NDA form for the following list of Drawings that have been revised:

Civil:

- 3-D-60020 (Rev. 1)

- 3-D-60021 (Rev. 1)

Plumbing:

- 3-D-60025 (Rev. 2)

Electrical:

- 3-D-60012 (Rev. 2)

Information Drawings:

- 3-102-2295

- 3-D-251

- 3-D-60014 (Rev. 2)

- 3-D-60016 (Rev. 2)

Standard Drawings:

- 40-D-60002

NSN 7540-01-152-8067 OPTIONAL FORM 336 (4-86)

Sponsored by GSA

FAR (48 CFR) 53.110

BLACK CANYON SWITCHYARD AND STATION SERVICE UPGRADES

140R1024R0008

Request for Information (RFI) Questions and Responses

1. QUESTION: Reference Drawing 3-D-248 and 3-D-249 have notes referring to 3-D-251.

However, 3-D-251 is not part of the drawing set. Can this drawing be provided for review?

RESPONSE: Refer to revised Section 52 00 00 – Drawings. Drawing 3-D-251 is now part of the drawing set.

2. QUESTION: Please clarify the enclosure type required for new MV Switchgear UZ1A.

RESPONSE: Refer to revised Section 33 72 30 - Medium-Voltage Metal-Clad

Switchgear paragraphs 2.01 A and E.

3. QUESTION: Is Control voltage source for UZ1A provided by the customer?

RESPONSE: No, refer to Section 52 00 00 – Drawings. Drawings 3-D-60044 and 3-

D-60045, which require the Contractor to install 5/C-10AWG and 12/C-12AWG to breakers J1, J2, J3, J4 as well as conductors back to Drawing 3-102-2295 to provide power for UZ1A.

4. QUESTION: Are the protective relays indicated on the three-line diagram to be located in new switchgear UZ1A? Or are the relays located in a remote location?

RESPONSE: Refer to Section 33 72 30 - Medium-Voltage Metal-Clad Switchgear paragraph 2.01 G, which requires Relay 11J3 installation in Switchgear UZ1A. Refer to

Section 26 24 26 - Low-Voltage Metal Switchgear paragraph 2.02 M 2, which requires

Relay 87KSA installation in Switchgear DSA.

5. QUESTION: It appears that UZ1A is to be located outside. But the specifications do not mention this requirement. If Outdoor rating is required, this metal clad switchgear would be required to be installed in an E-house. This is because Arc Resistant design is only offered in Nema 1. If a smaller footprint is primary concern, standard (non-arc resistant) design switchgear can be provided with walk in aisle structures. Protection relays with arc detection sensors can be installed to reduce arc flash hazard.

RESPONSE: In 33 72 30 section 2.01A cites IEEE C37.20.2 which has a section within the standard defining outdoor rated equipment. There are current manufacturers that create

Arc Resistant switchgear enclosures that are outdoor rated.

6. QUESTION: Specification section 33 72 30 paragraph 1.05.A.2 – The temperature range based on IEEE C37.2.2 is max 40 degrees C without derating the equipment. If customer wants 43 deg C rating, the metal clad switchgear will be derated. Please confirm if derated switchgear is desired.

RESPONSE: Refer to revised Section 33 72 30 - Medium-Voltage Metal-Clad

Switchgear paragraph 1.05 A 2. The revised temperature is higher than the max mean temperature of the location which prevents a derate being required.

7. QUESTION: Please clarify desired accuracy requirements for CTs in switchgear.

RESPONSE: Refer to Section 26 24 26 - Low-Voltage Metal Switchgear paragraph 2.02

L 4, and refer to Section 33 72 30 - Medium-Voltage Metal-Clad Switchgear paragraph

2.01 H.

8. QUESTION: Specification section 26 24 26 – 2.01 Clarify if any form of climate control system is required. This spec section requires an E-house with switchgear installed inside.

This contradicts 2.02 which describes “walk in aisle” design. Please confirm which outdoor structure is required.

RESPONSE: The equipment referenced in Section 26 24 26 - Low-Voltage Metal

Switchgear articles 2.01 and 2.02 is rated for 40 degrees C. Climate data for the installation location indicates an average high temperature of less than 40 degrees C.

Climate control for the enclosure is not required for the equipment enclosed within.

9. QUESTION: How will the overall project schedule be affected if the manufacture lead times on equipment extend past the need date to meet the overall project schedule?

RESPONSE: The contractor is responsible for meeting the terms and conditions of the contract to include the period of performance stated in Section F Deliveries and

Performance, Clause 52.211-10 Commencement, Prosecution, and Completion of Work.

10. QUESTION: What if any material or equipment for the project will be supplied to the contractor by others?

RESPONSE: The contractor is responsible for providing all required materials and equipment.

11. QUESTION: Is there an option for additional site visits after response to submitted questions?

RESPONSE: No. The Government believes that a 2nd Site Visit would not be beneficial to the Government or potential Offerors.

12. QUESTION: The cable list on drawing 3-D60044 and 3-D-60045 both list Destination

Reference Drawing 3-102-2295. Can drawing 3-102-2295 be made available?

RESPONSE: Refer to revised Section 52 00 00 – Drawings. Drawing 3-102-2295 is now part of the drawing set.

13. QUESTION: Is there a general electrical layout for the Control Center?

RESPONSE: Refer to Section 52 00 00 – Drawings. See Drawing 3-D-60012.

14. QUESTION: Can photos or description be provided for the existing cable tray routing through the plant from where the existing outside tray enters the building to second floor electrical room?

RESPONSE: The cable trays are being installed under a separate contract currently in construction, so photos are not available. Refer to revised Section 52 00 00 – Drawings.

See Drawings 3-D-60014 and -60016 for information.

15. QUESTION: Can photos or description be provided for routing of new medium voltage cables through the plant from where the new medium voltage duct bank enters the building to termination point in plant?

RESPONSE: The cable trays are being installed under a separate contract currently in construction, so photos are not available. Refer to revised Section 52 00 00 – Drawings.

See Drawings 3-D-60014 and -60016 for information. Cables to be routed from VV1A to

UZ1A for Unit 1 and from VV2A to UZ1A for Unit 2.

16. QUESTION: Can a detail or description be provided for entrance of new medium voltage conduits into the plant?

RESPONSE: Refer to Section 52 00 00 – Drawings. See Drawing 3-D-60016. Refer to revised Section 26 05 33 - Raceways and Boxes articles 3.01 and 3.02 for requirements for buried conduits carrying medium voltage cable.

TECHNICAL SERVICE CENTER

WRITTEN SPECIFICATIONS SIGNATURE SHEET

Specifications Title:

Project Title:

Region:

Prepared: P.E.

Technical Approval: P.E.

Certified: P.E.

AMD/MOD

No.

Technical Approval Signature:

P epared By Signature:

Revised Specifications

Black Canyon Switchyard and Station Service Upgrades

Boise Project

Columbia-Pacific Northwest (CPN)

3 Sections 00 00 50, 05 50 00, 26 05 02, 26 05 33, 26 05 90, 33 72 30, 52 00 00 Drawings 3-D-60020, 3-D-60021, 3-D-60025, 3-D-60012, 3-102-2295, 3-D-251, 3-D-60014, 3-D-60016, 40-D-60002

Mark Nance Digitally signed by Mark Nance Date: 2024.04.15 15:12:56 -06'00'

NICOLE SMITH

Digitally signed by NICOLE

SMITH

Date: 2024.04.15 15:16:07 -06'00'

ROBERT CARLSON Digitally signed by ROBERT CARLSON Date: 2024.04.15 16:04:58 -06'00'

NICOLE

SMITH

Digitally signed by

NICOLE SMITH

Date: 2024.04.15 15:26:56 -06'00'

Mark Nance

Digitally signed by Mark Nance Date: 2024.04.15 15:13:05 -06'00'

Black Canyon Switchyard and Station Service Upgrades Boise Project - Idaho Amendment No. 0003

Price Schedule (Revised)

B - 1

CONTINUATION OF SECTION B – SUPPLIES OR SERVICES AND PRICES

BLACK CANYON SWITCHYARD AND STATION SERVICE UPGRADES

BOISE PROJECT, IDAHO

B.1 PRICE SCHEDULES

(a) Offers will be considered for award on the following Price Schedules, but no offer will be considered for award on only a part of the Price Schedules:

(1) Offers will be evaluated based on the total of Price Schedules A and B.

(2) Government will award Price Schedules A and B.

(b) Offers are subject to the terms and conditions of this solicitation.

(c) Quantities in the Price Schedules are estimated quantities for comparison of offers only.

Except as provided in contract clause at FAR 52.211-18, Variation in Estimated Quantity, no claim shall be made against Government for overruns or underruns. Contract clause at FAR 52.211-18, Variation in Estimated Quantity, does not apply to lump-sum items.

(d) See contract clause at WBR 1452.232-81, Payment for Mobilization and Preparatory Work, for CLIN 1.

(e) Definitions:

(1) CLIN – Contract Line-Item Number

PRICE SCHEDULE A

CLIN Section Supplies or Services Quantity and Unit Unit Price

Amount

A-1 WBR

1452.232 -81

Mobilization and Preparatory Work

For the lump sum of $

A-2 01 31 30 Contract Document Management System

For the lump sum of $

A-3 02 41 13 Existing Switchyard Demolition 1 For the lump sum of $ A-4 03 30 00 Cast-In-Place Concrete 1 46 yd3 $ $ A-5 03 48 50 Precast Concrete Cable Trench 1 For the lump sum of $ A-6 26 05 04 Electrical Demolition For the lump sum of $ A-7 26 05 10 Conductors and Cables For the lump sum of $ A-8 26 05 22 Medium-Voltage Power Cable, 4/0

AWG

2,200 lin ft $ $

A-9 26 05 33 Raceways and Boxes For the lump sum of $ A-10 26 05 38 Terminal Boxes For the lump sum of $ A-11 26 12 00 Medium-Voltage Transformer For the lump sum of $ A-12 26 22 20 Low-Voltage Dry-Type

Transformers For the lump sum of $

Price Schedule (Revised)

B - 2

PRICE SCHEDULE A

CLIN Section Supplies or Services Quantity and Unit Unit Price

Amount

A-13 26 24 22 Distribution Panelboards For the lump sum of $ A-14 26 24 26 Low-Voltage Metal Switchgear For the lump sum of $ A-15 26 28 20 Fused Disconnect Switch For the lump sum of $ A-16 31 23 10 Common Excavation 1 160 yd3 $ $ A-17 31 23 10 Compacted Backfill 1 120 yd3 $ $ A-18 32 12 22 Asphalt Concrete Pavement 250 ft2 $ $ A-19 32 15 20 Switchyard Surfacing 77 yd3 $ $ A-20 33 11 16 Domestic Water Pipe Removal For the lump sum of $ A-21 33 11 16 Domestic Water Piping

Installation For the lump sum of $

A-22 33 72 20 Rigid Bus and Accessories For the lump sum of $ A-23 33 72 30 Medium-Voltage Metal-Clad

Switchgear For the lump sum of $

A-24 05 50 00 Guard Posts For the lump sum of $

TOTAL FOR PRICE SCHEDULE A $_________________

PRICE SCHEDULE B

CLIN Section Supplies or Services Quantity and Unit Unit Price

Amount

B-1 02 41 13 Existing Switchyard Demolition 2 For the lump sum of $ B-2 03 30 00 Cast-In-Place Concrete 2 9.1 yd3 $ $ B-3 03 48 50 Precast Concrete Cable Trench 2 For the lump sum of $ B-4 05 50 00 Miscellaneous Metalwork For the lump sum of $ B-5 26 05 04 Electrical Equipment Removal, Storage, and Reinstallation For the lump sum of $

B-6 26 05 20 Grounding and Bonding For the lump sum of $ B-7 31 23 10 Common Excavation 2 27 yd3 $ $ B-8 31 23 10 Compacted Backfill 2 26 yd3 $ $ B-9 32 31 10 Chain Link Fence For the lump sum of

TOTAL FOR PRICE SCHEDULE B $_________________

TOTAL OF PRICE SCHEDULE A AND PRICE SCHEDULE B $_________________

END OF SUPPLIES OR SERVICES AND PRICES

Metal Fabrications (Revised)

05 50 00 - 1

SECTION 05 50 00

METAL FABRICATIONS

PART 1 GENERAL

1.01 MEASUREMENT AND PAYMENT

A. Miscellaneous Metalwork:

1. Payment: Lump-sum price offered in Price Schedule B.

a. Includes:

1) Re-installation and anchoring of switch operator pedestals on foundation SW1, refer to Drawing 3-D-60021.

2) Switch operating platforms and equipment cabinet platforms for switchyard. Includes excavation, backfill, and compaction as well as concrete foundations, refer to Standard Drawing 40-D-7108.

B. Guard Posts:

1. Payment: Lump-sum price offered in Price Schedule A.

1.02 DEFINITIONS

A. Miscellaneous Metalwork: Where either shown on the drawings or specified elsewhere in this section or these specifications, “miscellaneous metalwork” means metal fabrications as used in this section.

1.03 REFERENCE STANDARDS

A. American Institute of Steel Construction (AISC)

1. AISC 303-22 Code of Standard Practice for Steel Buildings and Bridges

2. AISC 325-23 Steel Construction Manual, 16th Edition

3. AISC 360-22 Specification for Structural Steel Buildings

B. American Society of Mechanical Engineers (ASME)

1. ASME B1.1-2019 Unified Inch Screw Threads (UN and UNR Thread Form)

2. ASME B18.2.1-2012(R2021) Square, Hex, Heavy Hex, and Askew Head Bolts and Hex, Heavy Hex, Hex Flange, Lobed Head, and Lag Screws (Inch Series)

05 50 00 - 2

C. ASTM International (ASTM)

1. ASTM A36/A36M-19 Carbon Structural Steel

2. ASTM A53/A53M-22 Pipe, Steel, Black and Hot-dipped, Zinc- Coated Welded and Seamless

3. ASTM A123/A123M-17 Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products

4. ASTM A153/A153M-23 Zinc Coating (Hot-Dip) on Iron and Steel Hardware

5. ASTM A385/A385M-22 Providing High-Quality Zinc Coatings (Hot-Dip)

6. ASTM A563-21ae1 Carbon and Alloy Steel Nuts (Inch and Metric)

7. ASTM A615/A615M-22 Deformed and Plain Carbon-Steel Bars for Concrete Reinforcement

8. ASTM A780/A780M-20 Repair of Damaged and Uncoated Areas of Hot-Dip Galvanized Coatings

9. ASTM D1187/D1187M-97(2018) Asphalt-Base Emulsions for Use as Protective Coatings for Metal

10. ASTM F436/F436M-19 Hardened Steel Washers Inch and Metric Dimensions

11. ASTM F844-19 Washers, Steel, Plain (Flat), Unhardened for General Use

12. ASTM F1554-20 Standard Specification for Anchor Bolts, Steel, 36, 55, and 105-ksi Yield Strength

D. American Welding Society, Inc. (AWS)

1. AWS D1.1/D1.1M-20 Structural Welding Code – Steel

E. Commercial Item Description (CID)

1. CID A-A-1923A Shield Expansion (Lag, Machine and Externally Threaded Wedge Bolt) Anchors

F. International Code Council (ICC)

1. ICC-ES AC308-18 Acceptance Criteria for Post-Installed Adhesive Anchors in Concrete

2. IBC-18 International Building Code

G. National Association of Architectural Metal Mfrs. (NAAMM)

1. NAAMM MBG 531-17 Metal Bar Grating Manual

05 50 00 - 3

2. NAAMM MBG 532-19 Heavy Duty Metal Bar Grating Manual

H. The Society for Protective Coatings (SSPC)/NACE International (NACE)

1. SSPC-SP 6/NACE No. 3-07 Commercial Blast Cleaning

1.04 QUALIFICATION OF WELDERS

A. Qualify welders in accordance with AWS D1.1 using procedures, materials, and equipment of the type required for the work.

1.05 DELIVERY, STORAGE, AND PROTECTION

A. In accordance with Section 01 60 00 - Product Requirements.

B. Protect from corrosion, deformation, and other types of damage.

C. Store items in an enclosed area free from contact with soil and weather.

D. Remove and replace damaged items with new items.

PART 2 PRODUCTS

2.01 MATERIALS

A. Arc-Welding Electrodes:

1. Use filler metal and shielding gases suitable for base materials, positions, and other conditions.

2. Filler metal and required shielding gases or fluxes: AWS D1.1.

3. Use filler metal with a minimum tensile strength of 70,000 pounds per square inch (psi) for steel.

B. Bolts, Nuts, and Washers:

1. Nuts:

a. For ASTM F3125, Grade A325 High-Strength bolts: ASTM A563, Grade DH, Hex.

b. Hot-dip galvanized.

2. Washers:

a. For ASTM F3125 high-strength bolts: ASTM F436, Type I.

b. Unhardened for general use: ASTM F844.

c. Hot-dip galvanized.

3. Bolts:

a. ASTM A307, except anchor bolts.

05 50 00 - 4

b. Anchor bolts as shown on drawings.

c. ASTM A36 steel.

d. Length of Bolt Threads: ASME B18.2.1.

e. Thread Class: 2 free-fit, American National coarse-thread series.

f. Hot-dip galvanized.

4. High-Strength Bolts:

a. ASTM F3125, Grade A325, Heavy Hex Head.

b. Length of bolt threads: ASME B18.2.1.

c. Thread class: 2 free-fit, American National coarse-thread series.

d. Hot-dip galvanized.

C. Grating: NAAMM 531 or 532, of sizes shown on drawings.

1. Galvanized steel: Welded grating.

2. Plain bar or serrated bar grating as shown on drawings.

3. Banding bar: Unless otherwise shown on drawings, provide same size as bearing bars, where required.

D. Grating Fasteners: Steel standard clips as recommended by grating manufacturer.

E. Structural Steel:

1. Shapes: ASTM A36.

2. Bars and Plates: ASTM A36.

F. Bituminous Paint: ASTM D1187, Type 1.

2.02 ANCHORS

A. Adhesive Anchors:

1. Drilled type, installed with a chemical adhesive system.

2. Seismic qualified per ICC IBC and ICC-ES AC308 for seismic design category A through F and cracked concrete conditions.

3. Adhesive: HIT-HY 200 epoxy adhesive manufactured by HILTI, 7250 Dallas Pkwy #1000, Plano, TX 75024; or equal, having the following essential characteristics:

a. Injectable two-component epoxy adhesive.

b. Dual packaging system designed for automatic mixing during injection.

c. Weathering resistant.

d. Resistant against high temperatures.

05 50 00 - 5

e. Suitable for use in diamond cored or hammer-drilled holes.

f. Extended temperature from 41 to 248 degrees F.

g. Suitable for cold weather installation for in service temperature no less than 14 degrees F.

4. Threaded carbon steel anchor rod: HAS-V-36 HDG rod manufactured by HILTI, 7250 Dallas Pkwy #1000, Plano, TX 75024; or equal, having the following essential characteristics:

a. Rod material: ASTM F1554, Grade 36.

b. Thread: ASME B1.1, continuously threaded (all-thread).

c. Fabricate with 45-degree chisel point on one end to facilitate insertion into adhesive-filled hole.

d. Hot-dip galvanized.

5. Standard Steel Nuts:

a. ASTM A563, Grade DH.

b. Hot-dip galvanized.

6. Standard Steel Washers:

a. ASTM F436, Type 1.

b. Hot-dip galvanized.

B. Expansion Anchors: Kwik Bolt 3 torque-controlled expansion anchor body, wedge, nut, and washer as manufactured by HILTI, P.O. Box 21148, Tulsa, OK 74121; or equal, having the following essential characteristics:

1. Meets the requirements of CID A-A-1923A, Type 4.

2. Anchor body and wedge: Carbon steel.

3. Nuts and washers: As recommended by anchor manufacturer.

4. Bolt length: As shown on drawings. If not shown, provide bolt length with 3 1/2-inch minimum embedment.

5. Hot-dip galvanized.

2.03 FABRICATION

A. Fabricate metalwork in accordance with AISC 303, AISC 325, AISC 360, and these specifications:

1. Perform welding and related work in accordance with AWS D1.1.

2. Grind all welds for ladders, grab bars, pipe guardrails, wall rails, and handrails, smooth.

B. If straightening is necessary, use methods that will not injure the metal.

05 50 00 - 6

C. After shop work completion and before galvanizing, if required, clean material of rust, loose scale, dirt, oil, grease, slag from welded areas, and other foreign substances.

D. Galvanizing:

1. Galvanize items of metalwork as specified or shown on drawings.

2. Use hot-dip galvanizing, where required after fabrication, in accordance with ASTM A123 and ASTM A385.

3. Galvanize steel shapes and plates in accordance with ASTM A385.

4. Galvanize bolts, screws, nuts, washers, and headed concrete anchors in accordance with ASTM A123 or ASTM A153, as applicable.

5. Remove excess spelter by centrifugal spinning.

6. Galvanizing Repair:

a. Re-dip material with damaged galvanizing unless damage is local and can be repaired by two component epoxy zinc primer.

b. If the galvanized coating becomes damaged after being dipped twice, material will be rejected.

c. Where local paint repair is authorized: Repair damaged galvanized surfaces in accordance with ASTM A780, except repair materials containing cadmium and lead are not permitted.

E. Coatings: Apply bituminous coating to aluminum surfaces in contact with concrete or steel.

2.04 GUARD POSTS

A. Refer to Drawings 3-D-60021 and 40-D-60002.

B. Steel Pipe: ASTM A53, type E or S, grade B.

1. Unless otherwise shown on drawings, provide standard-weight, black, steel pipe.

2. Government inspection at the mill and hydrostatic tests will not be required.

C. Concrete: In accordance with Structural Concrete as detailed in Section 03 30 00 - Cast-In-Place Concrete. Maximum Size Aggregate: 3/4-inch.

D. Reinforcing Bars: ASTM A615, uncoated.

E. Painting:

1. Abrasive blast clean bollards to SSPC-SP 6/NACE No. 3 with a 1-1.5 mil profile.

2. One coat of primer followed by two finish coats 2 to 3 mils dry film thickness (DFT) per coat for a total system 6 to 9 mils DFT.

3. Final Color: Safety Yellow.

05 50 00 - 7

4. Apply one of the following coatings systems to coat exterior surfaces of exposed concrete fill and pipe:

a. Carboline Carbocrylic 3358/Carbocrylic 3359;

b. International Paint Devflex 4020PF DTM/Devflex 4216HP;

c. Sherwin Williams Pro Industrial Procryl Universal Acrylic Primer series B66-W00310/Pro Industrial Procryl DTM Acrylic;

d. Or equal.

PART 3 EXECUTION

3.01 PREPARATION

A. Where locations and dimensions of miscellaneous metalwork shown on drawings are tentative or subject to change dependent upon equipment furnished, confirm locations and dimensions prior to fabrication of miscellaneous metalwork.

3.02 INSTALLATION

A. Embedded Metalwork:

1. Locate metalwork to be embedded in concrete: Hold metalwork in correct position and alignment and protect metalwork from damage and displacement during placing and setting of concrete.

2. Unless otherwise specified, use only metal braces, supports, and other items to position and align embedded metalwork, which will be embedded in concrete. Do not use wooden braces, supports, or other items to position and align embedded metalwork if they will also be embedded in concrete.

B. Adhesive and Expansion Anchors:

1. Drill holes for anchors straight and true and of diameter recommended by anchor manufacturer.

2. Install anchors in accordance with manufacturer's recommendations. Locate anchors to ensure anchors do not hit reinforcing bars.

3. Follow manufacturer’s recommendations when embedded steel or reinforcement is encountered during drilling for anchors.

4. When drilling water is used, clean surfaces of concrete to remain exposed immediately to prevent discoloration.

5. Following drilling, clean holes with water to remove cuttings, followed by air to ensure holes are dry.

C. Platforms:

1. Install switch operating platform in proper position with respect to switch control rod or pipe, and ground as shown and noted on drawings. Do not install switch

05 50 00 - 8 operating platforms until after switches are installed. Platforms to be installed per Standard Drawing 40-D-4874.

2. Install equipment cabinet platforms in proper position with respect to equipment cabinet to provide access to doors, and bond as noted on drawings. Platforms to be installed per Standard Drawing 40-D-4874.

D. Galvanizing Repair: Repair damaged galvanized surfaces in accordance with ASTM A780, except repair materials containing cadmium and lead are not permitted.

E. Guard Posts:

1. Install guard posts in soil at locations shown on drawings and in accordance with Drawing 40-D-60002.

2. Install guard posts plumb and true and to height shown on drawings.

3. Install coatings in accordance with the manufacturer’s requirements.

END OF SECTION

Basic Electrical Materials and Methods (Revised) 26 05 02 - 1

SECTION 26 05 02

BASIC ELECTRICAL MATERIALS AND METHODS

PART 1 GENERAL

1.01 MEASUREMENT AND PAYMENT

A. Cost: Include in prices offered in the Price Schedules for items of work for which basic electrical materials and methods are required. Includes:

1. Providing services of erecting engineers.

2. Transporting and storing equipment and materials.

3. Drilling holes in steel structures (other than tubular structures) as required for mounting or installing electrical equipment and material.

4. Brackets, fasteners, bolts, nuts, lock washers, and other accessories required for mounting or installing electrical equipment and materials.

5. Making electrical connections.

6. Assembling, adjusting, and installing equipment.

7. Modifying equipment.

8. Furnishing certified calibrated testing equipment.

9. Performing testing.

10. Painting equipment and materials.

11. Furnishing, handling, and storing spare parts for electrical equipment.

12. Furnishing special tools and appliances for maintenance and adjustment of equipment.

1.02 REFERENCE STANDARDS

A. American Society of Mechanical Engineers (ASME)

1. ASME BPVC-IX-23 Boiler and Pressure Vessel Code, Section IX

– Welding and Brazing Qualifications

B. ASTM International (ASTM)

1. ASTM A123/A123M-17 Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products

2. ASTM A153/A153M-23 Zinc Coating (Hot-Dip) on Iron and Steel

Hardware

C. Institute of Electrical and Electronics Engineers (IEEE)

1. IEEE 4-13 High-Voltage Testing Techniques

Basic Electrical Materials and Methods (Revised) 26 05 02 - 2

2. IEEE C2-23 National Electrical Safety Code (NESC)

D. InterNational Electrical Testing Association (NETA)

1. NETA ATS-21 Acceptance Testing Specifications for

Electrical Power Equipment and Systems

E. National Fire Protection Association (NFPA)

1. NFPA 70-23 National Electrical Code (NEC)

1.03 QUALIFICATIONS

A. Welder Qualifications: In accordance with ASME BPVC-IX.

B. Field testing organization and personnel: As specified in NETA ATS, Section 3, except may be accredited by other than NETA.

1.04 MAINTENANCE AND EXTRA MATERIALS

A. Provide special tools and accessories required for installation or normal operation and maintenance of equipment and installations. Studs, bolts, or nuts other than United States Standard provided anywhere in the equipment or installation will be considered as requiring special tools.

B. Deliver special tools and spare parts for equipment to site as approved by COR. Provide shipments with item list(s).

C. Special tools spare parts shall be onsite prior to installation of equipment.

1.05 RELATED REQUIREMENTS

A. This section applies to Sections of Division 26 unless specified otherwise in the individual sections.

PART 2 PRODUCTS

2.01 MATERIALS AND EQUIPMENT

A. Conform to NFPA 70, IEEE C2, and Section 01 60 00 - Product Requirements.

B. Galvanize mounting brackets, bolts, nuts, and washers for major items of electrical equipment such as disconnecting switches, insulators, disconnecting fuses, distribution transformers, resistors, capacitors, power switchgear assembly, control boards, unit substations, batteries, battery chargers, in accordance with ASTM A123 and A153.

Basic Electrical Materials and Methods (Revised) 26 05 02 - 3

C. Provide galvanized steel or non-corrosive metal for mounting bolts, nuts, and washers for minor items of electrical equipment and lighter weight items. Do not use cadmium-plated mounting hardware.

D. Change designs as required where Contractor-furnished electrical equipment and materials differ in size, type, ratings, or other physical properties from designs in these specifications. CO will approve changes at Contractor’s expense, unless Contractor can demonstrate that changes are necessary regardless of manufacturer.

E. Provide special tools and appliances furnished by manufacturer for maintenance and adjustment of manufacturer’s electrical equipment.

F. Grout Materials: In accordance with Section 03 62 20 – Nonshrink Grout for Equipment and Metalwork.

2.02 CONTRACTOR SOURCE QUALITY TESTING

A. In accordance with IEEE 4.

2.03 SOURCE QUALITY ASSURANCE

A. Government will inspect major electrical equipment at supplier’s manufacturing plant during fabrication and testing.

PART 3 EXECUTION

3.01 INSTALLATION

A. Do not install electrical equipment until approval drawings and data and factory test reports for associated equipment have been approved by Government, unless approved by

COR.

B. Electrical installations, assembly operations, and adjustments: Comply with NFPA 70 and IEEE C2.

C. Make electrical installations complete and ready for service.

D. Install electrical equipment in accordance with directions furnished by manufacturer’s instruction manual and erecting engineers.

E. Coordinate with manufacturer for obtaining services of erecting engineers for Contractor-furnished equipment.

F. Tighten nuts used in electrical equipment assembly with torque wrenches to torque values recommended by equipment manufacturers.

G. Drill holes in bolted steel structures and provide fastenings required for mounting or installing electrical equipment and materials.

Basic Electrical Materials and Methods (Revised) 26 05 02 - 4

H. Do not drill holes in tubular steel structures. Fasten to tubular steel structures by means of properly drilled and tapped plates, bars, or brackets welded to tubular members.

I. Installation of electrical equipment includes:

1. Leveling and grouting channel bases.

2. Drilling holes, furnishing hardware, and assembling components to each other.

3. Furnishing materials for and making all connections correctly in accordance with final wiring diagrams.

4. Labeling wires and cables at each end.

J. Grout electrical equipment installed on concrete foundations in place to provide full and even bearing.

3.02 REPAIR

A. Repair damaged painted surfaces of equipment to match original finish.

3.03 CONTRACTOR FIELD QUALITY TESTING

A. In accordance with requirements of clause FAR 52.246-12, Inspection of Construction, IEEE C2, and applicable equipment Sections.

B. Field-Made Bolted Power Connections:

1. Flat, silver-plated with resistance value of 10 micro-Ohms or less.

2. Resistance test equipment: Measure down to 1 micro-Ohms with accuracy of

±0.3 percent or better.

3. If connections do not provide acceptable results, re-torque by loosening connections slightly and re-tightening to manufacturer’s torque values.

3.04 FIELD QUALITY ASSURANCE

A. Government will inspect equipment during construction and witness field tests:

1. Inform COR at least 72 hours in advance of testing. Failure to inform may require retesting if tests were performed with no government witness.

2. Acceptance of equipment will be made after equipment is operational.

B. Government will witness equipment field tests. Provide proof of Government witness on field test reports.

Raceways and Boxes (Revised)

26 05 33 - 1

SECTION 26 05 33

RACEWAYS AND BOXES

PART 1 GENERAL

1.01 MEASUREMENT AND PAYMENT

A. Raceways and Boxes:

1. Payment: Lump-sum price offered in Price Schedule A.

a. Includes cost of labor and materials associated with raceways and boxes listed in Conduit and Cable Schedule on Drawing 3-D-60043.

1.02 REFERENCE STANDARDS

A. American National Standards Institute (ANSI)

1. ANSI C80.1-20 Electric Rigid Steel Conduit

B. Institute of Electrical and Electronics Engineers (IEEE)

1. IEEE C2-23 National Electrical Safety Code (NESC)

C. National Electrical Manufacturers Association (NEMA)

1. NEMA 250-20 Enclosures for Electrical Equipment

(1,000 Volts Maximum)

2. NEMA FB 1-14 Fittings, Cast Metal Boxes, and Conduit

Bodies for Conduit, Electrical Metallic Tubing, and Cable

3. NEMA TC 2-20 Electrical Polyvinyl Chloride (PVC) Conduit

4. NEMA TC 3-21 Polyvinyl Chloride (PVC) Fittings for Use with Rigid PVC Conduit and Tubing

5. NEMA TC 7-21 Smooth Wall Coilable Electrical Polyethylene Conduit

D. National Fire Protection Association (NFPA)

1. NFPA 70-23 National Electrical Code (NEC)

E. Underwriters Laboratories (UL)

1. UL 6-22 Electrical Rigid Metal Conduit-Steel

2. UL 360-13 Liquid-Tight Flexible Steel Conduit

26 05 33 - 2

3. UL 651-11(2022) Schedule 40, 80, Type EB and A Rigid PVC Conduit and Fittings

PART 2 PRODUCTS

2.01 GENERAL

A. Materials and equipment manufactured within the scope of standards published by Underwriters Laboratories shall conform to those standards and shall have an applied UL listing mark.

B. Material and Equipment: Labeled or listed by a nationally recognized testing laboratory or other organization in order to provide a basis for approval under NFPA 70.

2.02 RACEWAYS

A. Rigid Metal Conduit (RMC):

1. ANSI C80.1.

2. UL 6 listed.

B. Rigid Polyvinyl Chloride Conduit (PVC):

1. Schedule 80 conduit and elbows furnished with integral bell end.

2. Length: Manufacturer’s standard 10- or 20-foot lengths.

3. Temperature Rating: Equal to or greater than temperature rating of enclosed conductors.

4. Conduit conforms to NEMA TC 2, NFPA 70, and UL 651.

5. Fittings and conduit bodies conforms to NEMA TC 3, NFPA 70, and be UL listed.

C. Liquidtight Flexible Metal Conduit (LFMC):

1. Interlocked steel construction with PVC jacket.

2. Ultra-violet resistant.

3. Color: Black.

4. Conform to NFPA 70 and UL 360.

5. Fittings conform to NEMA FB 1.

2.03 OUTLET BODIES, DEVICE BOXES, JUNCTION AND PULL BOXES

A. Outlet Bodies and Fittings:

1. Material: Cast iron or malleable iron.

2. Covers: Cast or sheet metal.

26 05 33 - 3

3. Weatherproof, NEMA 250, Type 4.

B. In-grade Pull Box (EYA):

1. Rating: 10,000 lbs.

2. Bolt-down cover.

3. Dimensions:

a. Length: 48 inches.

b. Width: 48 inches.

c. Depth: 48 inches.

4. Openings for conduit sizes and quantity: As shown on Drawing 3-D-60022.

2.04 CONDUIT FITTINGS

A. General:

1. UL listed.

2. Conform to NEMA FB 1 as applicable.

3. Steel Materials and Hardware: Galvanized.

B. Expansion Couplings:

1. Furnish for longitudinal movement only.

2. Zinc coated, watertight type.

3. Capable of at least 4 inches of expansion/contraction.

4. Expansion couplings for plastic conduit shall expand at least 4 inches for each

100 feet of run and for each 100 degrees Fahrenheit temperature change.

C. Expansion-Deflection Couplings:

1. Furnish for movement in any direction.

2. Watertight.

3. Deflection and Expansion: 3/4-inch, minimum.

4. Angular Misalignment: 30 degrees, minimum.

D. Watertight Conduit Hubs:

1. Myers hub manufactured by Cooper Industries, Crouse-Hinds Division, Syracuse

New York, catalog series ST-, STA- and SSTG-; catalog series HUB- and HUBG- manufactured by Appleton, Rosemont, IL; catalog series CHM-manufactured by O-Z Gedney, Rosemont, IL; or equal, having the following essential characteristics:

a. Vibration proof.

26 05 33 - 4

b. Grounding screw.

c. Water and dust tight gasket.

d. Compatible with conduit type being applied to.

e. Watertight.

E. Polyethylene Warning Tape:

1. Width: 6 inches.

2. Color: Red.

3. Copy: Continuously imprinted with “CAUTION BURIED ELECTRIC LINE

BELOW”.

4. Suitable for direct burial.

5. Corrosion Protection Tape:

a. 10 mils thickness, minimum.

b. Suitable for protection of rigid steel conduit.

2.05 CONDUIT ACCESSORIES

A. Fittings required to complete electrical conduit systems. Includes, caps, connectors, couplings, unions, nipples, reducers, elbows, pipe plugs, locknuts, bondnuts, and any other fittings.

B. Devices required to fasten, clamp, attach and support raceways in place. Includes supports and clamps with bolts, washers, and nuts.

C. No pot metal or plastic accessories for rigid steel conduit. Fittings shall be steel or cast steel for rigid steel.

D. Locknuts and Bushings:

1. Locknuts: Steel. Die cast locknuts are not acceptable.

2. Bushings: Insulated and pressure cast or malleable iron. Grounding bushing shall be lay-in saddle type.

E. Conduit Riser Grips: Kellems Conduit Riser Grips manufactured by Hubbell Incorporated; or equal, having the following essential characteristics:

1. Suitable to support vertical cable runs in rigid steel conduit.

2. Single weave closed or split mesh type.

3. Mesh Material: Tin-coated bronze strands.

F. Conduit Tags:

1. Type: Round brass.

26 05 33 - 5

2. Engraved Valve Tags, as manufactured by R&R Identification, www.rridentification.com; Valve Tags, as manufactured by Brady, www.bradyid.com; or equal, having the following essential characteristics:

a. Minimum 18 gauge thickness, engravable.

b. Round shape with attachment hole suitable for tie wraps or similar.

G. Thread Lubricant: Lithium, graphite, or zinc-based material designed to inhibit corrosion and to lubricate metal-to-metal joints.

H. Electrical duct seal for sealing ends of raceways that end at an exterior location.

I. Protective Sealant: Water repellant, and resistant to peeling and cracking.

J. Conduit Wall Penetration Seals:

1. Elastomeric material to prevent liquid and gas seepage.

2. Dust tight.

3. Fire retardant.

2.06 DUCT BANKS

A. Underground duct banks are used for conductors routed between switchyard and existing powerplant areas as indicated on drawings.

B. Underground duct banks contain PVC Schedule 80 conduit.

PART 3 EXECUTION

3.01 GENERAL

A. Provide conduits for new equipment and as shown on drawings.

B. Provide core drills:

1. Conduit from DSA entering the existing cable trench.

2. New conduit from existing cable trench entering powerplant.

C. Where conduit will be mated with existing conduit, utilize couplings or adaptive couplings.

3.02 INSTALLATION

A. In accordance with Section 26 05 02 - Basic Electrical Materials and Methods and Standard Drawing 40-D-7094.

http://www.rridentification.com/ http://www.bradyid.com/

26 05 33 - 6

B. Layout and Procedures:

1. Determine routing of exposed conduit when not indicated on drawings.

2. Determine exact locations of embedded conduit stub-ups based on equipment being furnished or reinstalled.

3. Ensure that conduit runs and bends are free from kinks, indentations, or flattened surfaces.

4. For conduit installed vertically that projects through steel tube located on top of wall, a 1-1/2-inch hole for extending conduit through steel tube may be drilled along centerline of tube.

C. Install in accordance with NFPA 70 and IEEE C2.

D. Where embedded conduit exits vertically out of the concrete slab, the exposed portion of the conduit shall be rigid steel, which will require a conduit transition from PVC to rigid steel within the slab.

E. Install conduit with necessary fittings and supports.

F. Install fire blocks in all floor block outs used to route cable and conduit between floors.

Seal entire block out to create a fire and smoke barrier.

G. Ensure that conduit runs and bends are free from kinks, indentations, or flattened surfaces.

H. Bends:

1. Install smooth, gradual bends to permit pulling insulated conductors without undue stress or damage to conductors or conduit.

2. Make metal conduit bends in accordance with NFPA 70.

3. Bend conduit cold to prevent damage to protective coating.

I. Remove burrs and sharp corners at ends of metal conduit.

J. Coat male threads of rigid metal conduit joints with suitable graphite or zinc sealing material before making joints.

K. Tighten conduit joints securely to ensure electrical continuity and to prevent entrance of moisture or foreign material.

L. Install bushings or chase-type nipples on ends of conduit to protect insulation of insulated conductors from abrasion.

M. Tighten conduit to electrical equipment mounted on tubular metal structures securely and support rigidly in place by conduit clamps, hex head nuts, and threaded 3/8-inch stud fasteners driven by power-actuated tools.

26 05 33 - 7

N. Install locknuts and ground nuts to provide tight ground connections between conduit and boxes, panelboards, and cabinets.

O. Install expansion couplings where exposed or embedded conduits cross expansion or contraction joints. Install expansion couplings and expansion-deflection couplings in accordance with manufacturer’s instructions.

P. Conduit Terminations:

1. Make conduit terminations to indoor boxes, cabinets, and panelboards in accordance with NFPA 70.

2. Make conduit terminations to outdoor boxes with watertight conduit hubs. Use of locknuts, bushings, or bushed nipples at outdoor conduit terminations is not acceptable.

3. Install bushings or chase-type nipples on ends of conduit to protect insulation of insulated conductors from abrasion.

4. Install locknuts and bondnuts to provide tight ground connections between conduit and boxes, panelboards, and cabinets.

5. Seal ends of conduit terminations at exterior locations with electrical duct seal to prevent air circulation and entrance of vermin through conduits into boxes, panelboards, or cabinets. Install duct seal to a minimum depth of 1 inch.

Q. Stub conduit that terminates at horizontal surfaces 2 inches above finished floor level and terminate with coupling and plug. Replace plug with bushing or chase-type nipple before installing insulated conductors.

R. Conduit Embedded in Concrete:

1. Schedule 80 PVC.

2. Conduit shall not be larger in outside diameter than one-third of the overall thickness of the slab, wall, or beam in which they are embedded.

3. Shall not be spaced closer than 3 diameters on center and will be located within the middle third of the section depth for the wall, slab, or other concrete member.

4. Hold conduit, conduit fittings, and conduit boxes securely in position while concrete is being placed.

5. Tie conduit to reinforcing bars or otherwise support to prevent sagging while concrete is being placed.

6. Conduit Stub-Ups:

a. Minimum Length Above Finished Floor: 4 inches, not including coupling.

b. Terminate conduit with coupling and plug until ready to connect remaining conduit sections. Replace plug with bushing or chase-type nipple before installing insulated conductors.

26 05 33 - 8

c. Approximately 1 foot of the horizontal embedded conduit and entire vertical stub-up shall be rigid steel conduit.

7. Protect ends of conduit to prevent entrance of concrete, sand, or other foreign material.

8. Terminate ends of conduit that do not terminate at boxes with couplings and pipe plugs or insulating bushings and caps.

9. Clean concrete from inside of conduit boxes immediately after forms are removed.

10. Clean threads for attaching devices.

11. Swab conduit within 24 hours after removal of forms with clean dry rags until conduit is thoroughly cleaned and dried.

12. Grease threads of removed plugs and reinstall plugs to prevent entrance of water or foreign material.

13. Seal conduit boxes with rubber gasketed blank cover.

S. Exposed Conduit Runs:

1. Straight and parallel with each other and with centerlines of room or structure.

2. Support conduit rigidly in place and in accordance with NFPA 70. Do not weld conduit to conduit supports or structural steel.

3. Rigid steel type.

4. Use LFMC for exposed conduit within 2 feet of low-voltage dry-type transformers.

T. Buried Conduit:

1. Depth: For low-voltage circuits: 24 inches, minimum, unless otherwise indicated on the drawings. For medium-voltage circuits: 30 inches, minimum, unless otherwise indicated on the drawings.

2. Install 2 inches of sand around each conduit.

3. Backfill and compact remaining portions of trench in…