S02 UM35 MS3476.pdf
PDF 369 KB Posted
- Attached to
- C222--650-22-103 AE Replace Primary Substation Federal contract opportunity
- Solicitation number
- 36C24121R0157
About this file
This document is a special notice for qualifications regarding architectural and engineering design services for replacing an existing campus primary substation. Firms are required to submit one electronic copy of their SF330 qualifications package by July 12, 2021 for consideration. The project involves replacing the existing primary substation at the VA Medical Center located at 830 Chalkstone Avenue in Providence, Rhode Island, with a construction value over $10 million. This is a total set-aside for Service-Disabled Veteran Owned Small Businesses. The selection criteria for the contract are professional qualifications, specialized experience and technical competence, past performance, capacity, location, and experience in construction period services. The scope of work includes developing drawings, specifications, cost estimates, and construction administration for the replacement of the campus primary substation while maintaining power during construction.
View the file
Other files for this federal contract opportunity
| File | Type | Posted |
|---|---|---|
| S02 PPQ Primary Substation 0001.pdf | ||
| 36C24121R0157 0001_1.docx | DOCX document | |
| S02 UM20 MS3467.pdf | ||
| 36C24121R0157.docx | DOCX document | |
| S02 UM30 MS3475.pdf | ||
| S02 PPQ Primary Substation.pdf | ||
| S02 650-22-103 SOW Replace Primary Substation.pdf | ||
| S02 NGrid Installation Specifications.pdf |
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Text version
DISTRIBUTION DOCUMENT
Material Specification
Doc. # MS3476
PRECAST CONCRETE MANHOLE
Auto Switchgear Manhole Version 2.0 – 3/18
Copyright 2017 National Grid. Printed copies of this document are not document controlled. Refer to the National Grid INFONET, Distribution Engineering Services website, for the latest version. Controlled copies are maintained in Documentum.
File: MS 3476 PRECAST CONCRETE MANHOLE Auto Switchgear Manhole
Originating Department:
Electric Material Standards
Sponsor:
Jon Gonynor
INTRODUCTION
This specification covers the requirements for a precast large switchgear manhole with collars for 23 and 35kV auto transfer switch installations.
REFERENCES
ASTM A-615
ASTM C-857, C-858, ACI 318
AASHO-H20-44
DOCUMENT CONTENTS
Table of Contents
1. GENERAL 2
2. COMPLIANCE WITH STANDARDS AND CODES 2
3. MATERIAL 2
4. DRAWINGS 4
5. REVISION HISTORY 8
Doc. # MS3476
Copyright 2017 National Grid. Printed copies of this document are not document controlled. Refer to the National Grid INFONET, Distribution Engineering Services website, for the latest version. Controlled copies are maintained in Documentum.
File: MS 3476 PRECAST CONCRETE MANHOLE Auto Switchgear Manhole
Originating Department:
Electric Material Standards
1. GENERAL
1.1. This specification covers precast concrete manhole construction of large switchgear manholes. There is currently one option for selecting the proper switchgear manhole to order. They are based on the application of the installation.
1.2. SAP Item ID 1001129, Standard Item UM35.
a) Collar “S” style – For use with 23 & 35kV Cooper PST S/G
2. COMPLIANCE WITH STANDARDS AND CODES
2.1. Roof shall be designed for AASHO-HS20-44 direct wheel loading
2.2. Manholes to be in accordance with ASTM publication C-857, C-858, ACI 318 and
AASHTO load factor design methods.
2.3. Steel reinforcing bars shall conform to ASTM-A-615 (latest revision). Grade 60 min.
Cover - 1".
3. MATERIAL
3.1. Material shall be precast concrete with a minimum strength if 5,000 psi, 28 days.
3.2. Drawing shall be approved by National Grid Standards
3.3. Steel reinforcing bars shall conform to ASTM-A-615 (latest revision). Grade 60 min.
Cover - 1".
3.4. Design loading - the roof shall be designed for AASHO-HS20-44 direct wheel loading.
3.5. Do not extend horizontal rods into duct openings. Vertical reinforcing rods in top and bottom sections of the duct openings will be bent out in the field for support of incoming duct bank.
3.6. Pull eyes, furnished by manufacturer, to be 1" round galvanized eye bolt. Pull test
25,000 lbs. As per detail “Z”.
3.7. Bare 4/0 copper ground stub conductor and U-bolt clamps as shown in detail “Y” to be furnished by manufacturer.
3.8. Manholes to be supplied with a 3'-2" square hole in roof with a bevel between 1 ½" and 3" as standard.
3.9. Construction joint shall be sealed with asphalt or equivalent.
3.10. Purchaser will provide manhole frame, cover, end bells and brick.
3.11. Manholes to be in accordance with ASTM publication C-857 and C-858.
Doc. # MS3476
Copyright 2017 National Grid. Printed copies of this document are not document controlled. Refer to the National Grid INFONET, Distribution Engineering Services website, for the latest version. Controlled copies are maintained in Documentum.
File: MS 3476 PRECAST CONCRETE MANHOLE Auto Switchgear Manhole
Originating Department:
Electric Material Standards
3.12. Manhole to be delivered to the job site by the manufacturer. Delivery to be coordinated with purchaser on a 48 hour notice.
3.13. Unistrut to be 1 5/8” x 1 5/8” galvanized steel embedded in wall and tied to reinforcing.
3.14. Manhole to be delivered in two pieces: top and bottom.
3.15. No changes to be made to this plan without purchaser’s approval
Doc. # MS3476
Copyright 2017 National Grid. Printed copies of this document are not document controlled. Refer to the National Grid INFONET, Distribution Engineering Services website, for the latest version. Controlled copies are maintained in Documentum.
File: MS 3476 PRECAST CONCRETE MANHOLE Auto Switchgear Manhole
Originating Department:
Electric Material Standards
4. DRAWINGS
Doc. # MS3476
Copyright 2017 National Grid. Printed copies of this document are not document controlled. Refer to the National Grid INFONET, Distribution Engineering Services website, for the latest version. Controlled copies are maintained in Documentum.
File: MS 3476 PRECAST CONCRETE MANHOLE Auto Switchgear Manhole
Originating Department:
Electric Material Standards
Doc. # MS3476
Copyright 2017 National Grid. Printed copies of this document are not document controlled. Refer to the National Grid INFONET, Distribution Engineering Services website, for the latest version. Controlled copies are maintained in Documentum.
File: MS 3476 PRECAST CONCRETE MANHOLE Auto Switchgear Manhole
Originating Department:
Electric Material Standards
Doc. # MS3476
Copyright 2017 National Grid. Printed copies of this document are not document controlled. Refer to the National Grid INFONET, Distribution Engineering Services website, for the latest version. Controlled copies are maintained in Documentum.
File: MS 3476 PRECAST CONCRETE MANHOLE Auto Switchgear Manhole
Originating Department:
Electric Material Standards
Doc. # MS3476
Copyright 2017 National Grid. Printed copies of this document are not document controlled. Refer to the National Grid INFONET, Distribution Engineering Services website, for the latest version. Controlled copies are maintained in Documentum.
File: MS 3476 PRECAST CONCRETE MANHOLE Auto Switchgear Manhole
Originating Department:
Electric Material Standards
5. REVISION HISTORY
Version Date Modification Author(s) Approval by (Name/Title)
2.0 3/18 Updated drawings Added ventilation knockouts Updated formatting
A. Miuccio Jon Gonynor, Director T&D O&M Services
1.0 6/15 New Material Specification
John Vartanian
Jonathan Gonynor
Director T&D O&M Services
File details come from the government source that posted it. Updated .