22901-3_Portable_Generator_MTS,_Sonoma_AAB_-_STAMPED.pdf

PERMIT #: 22-N-5871-C-PI

MASTER PERMIT #:

APPLICANT: Sevag Avanessian

CONTRACTOR:

PROJECT ADDRESS: 2235 AIRPORT BOULEVARD, SANTA ROSA, CA 95403

TYPE: Construction (C)

AGENCY: CAL FIRE (HQ)

Technical Services Unit

DATE ISSUED: 03/20/2023

PERMIT NOTICE

THIS CARD MUST BE POSTED ON SITE. WEATHER PROTECTED AND VISIBLE FROM THE STREET. REQUESTED

INSPECTIONS WILL NOT BE CONDUCTED IF THIS BUILDING PERMIT CARD IS NOT POSTED

PERMIT ISSUED BY:

INSPECTION REQUIREMENTS

Nr. INSPECTION TYPE STATUS SCHEDULE DATE INSPECTOR

1 Generator Test 2 Other-Signage and Electrical

Shane Wilson, Code Official

EXPIRATION:

This Permit is valid from the date of issuance shown above and will be voided if the work described does not begin within 1 year of issuance of this Permit. If work on the above project ceases for longer than 1 year, this Permit is void and the applicant/owner will have to re-apply for a second permit.

All construction work on the project and any previous inspections may be re-inspected at any given time by the inspector to verify construction items stay in compliance after the original inspection and that damage has not occurred to any portion of the work previously inspected.

Permits for a Special Event are valid for the duration of the event, subject to a field inspection at the discretion of the Office of the State Fire Marshal. The Office of the State Fire Marshal reserves the right to change or cancel the event due to any unforeseen conditions.

PROJECT NAME: Portable Generator Manual Transfer Switch

SFM #: 01-49-91-0060-00004

PERMIT

DEPARTMENT OF FORESTRY AND FIRE PROTECTION

OFFICE OF THE STATE FIRE MARSHAL

Fire and Life Safety Division - North 2251 Harvard Street, Suite 130, Sacramento, CA 95815

(916) 568-3826

Application #

22-N-5871-C-PI

Alternate Application #

Permit Type

Construction (C)

HOW TO SCHEDULE AN INSPECTION

Call the Permit Office at (916) 568-3826 or visit calfire.govmotus.org

28 December 2022

OSFM Submittal

PORTABLE GENERATOR

MANUAL TRANSFER SWITCH

SONOMA AIR ATTACK BASE

SPECIFICATIONS

Prepared for:

CALIFORNIA DEPARTMENT OF

FORESTRY AND FIRE PROTECTION

1131 S Street

Sacramento, CA 95811

Prepared by:

J.C. CHANG & ASSOCIATES, INC.

Engineers Architects Planners 385 Van Ness Avenue, Suite 208

Torrance, California 90501

Phone: (310) 212-7644 www.jccainc.com

JCCA #22901-3

OFFICE OF THE STATE FIRE MARSHAL

APPROVED FIRE AND PANIC ONLY

03/15/23

Approval of this plan does not authorize or approve any omission or deviation from applicable regulations. Final approval is subject to field inspection. One set of approved plans shall be available on the project site at all times.

22-5871 http://www.jccainc.com

J.C. Chang & Associates, Inc. Portable Generator Manual Transfer Switch JCCA No. 22901-3 Sonoma Air Attack Base

TABLE OF CONTENTS 1

TABLE OF CONTENTS

DIVISION 00 - PROCUREMENT AND CONTRACTING REQUIREMENTS

Contractor to obtain Division 00 from the Owner.

000105 Certifications Page

DIVISION 01 - GENERAL REQUIREMENTS

Contractor to obtain Division 01 from the Owner.

DIVISION 26 - ELECTRICAL

260519 Low-Voltage Electrical Power Conductors and Cables 260526 Grounding and Bonding for Electrical Systems

260533.13 Conduits for Electrical Systems

260543 Underground Ducts and Raceways for Electrical Systems 260548 Vibration and Seismic Controls for Electrical Systems 260553 Identification for Electrical Systems 262416 Panelboards

263213.13 Diesel-Engine-Driven Generator Sets

263343 Battery Chargers 263600 Transfer Switches

END OF TABLE OF CONTENTS

TABLE OF CONTENTS 2

THIS PAGE IS INTENTIONALLY LEFT BLANK

CERTIFICATIONS PAGE 000105 - 1

DOCUMENT 000105

CERTIFICATIONS PAGE

PROJECT TITLE: Portable Generator Manual Transfer Switch

CLIENT AGENCY: California Department of Forestry and Fire Protection

LOCATION: Sonoma Air Attack Base 2235 Airport Blvd Santa Rosa, CA 95403

PROJECT NUMBER: 22901-3

OWNER: State of California

PROJECT DIRECTOR: Albert Lau California Department of Forestry and Fire Protection 135 Ridgway Avenue Santa Rosa, CA 95401 Telephone Number: (707) 696-7120

CONSULTANT: J.C. Chang & Associates, Inc.

Sevag Avanessian, PE

ELECTRICAL ENGINEER

AUTHORITY HAVING

JURISDICTION

Date Signed: 12/28/2022

LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES 260519 - 1

SECTION 260519

LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Copper building wire.

2. Connectors and splices.

B. Related Requirements:

1.2 ACTION SUBMITTALS

A. Product Data:

1. Copper building wire.

2. Connectors and splices.

B. Product Schedule: CU, THWN, Outdoor, underground pull boxes, electrical panel, and M.T.S.

equipment.

1.3 INFORMATIONAL SUBMITTALS

A. Field quality-control reports.

PART 2 - PRODUCTS

2.1 COPPER BUILDING WIRE

A. Description: Flexible, insulated and uninsulated, drawn copper current-carrying conductor with an overall insulation layer or jacket, or both, rated 600 V or less.

B. Manufacturers:

1. Southwire.

2. International Wire Group, Inc.

3. New England Wire Technologies Corp.

4. Or approved equal.

LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES 260519 - 2

C. Standards:

1. Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and use.

2. Conductor and Cable Marking: Comply with wire and cable marking according to UL's "Wire and Cable Marking and Application Guide."

D. Conductors: Copper, complying with ASTM B3 for bare annealed copper and with ASTM B496for stranded conductors.

E. Conductor Insulation:

1. Type THHN and Type THWN-2. Comply with UL 83.

2.2 CONNECTORS AND SPLICES

A. Description: Factory-fabricated connectors, splices, and lugs of size, ampacity rating, material, type, and class for application and service indicated; listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and use.

B. Manufacturers:

1. Dottie.

2. Ideal.

3. 3M.

4. NSI.

5. Or approved equal.

PART 3 - EXECUTION

3.1 CONDUCTOR MATERIAL APPLICATIONS

A. Feeders:

1. Copper; solid for No. 12 AWG and smaller; stranded for No. 10 AWG and larger.

B. Branch Circuits:

1. Copper. Solid for No. 12 AWG and smaller; stranded for No. 10 AWG and larger.

3.2 CONDUCTOR INSULATION AND MULTICONDUCTOR CABLE APPLICATIONS AND

WIRING METHODS

A. Service Entrance: Type THHN/THWN-2, single conductors in raceway.

B. Feeders Concealed in Ceilings, Walls, Partitions, and Crawlspaces: Type THHN/THWN-2.

LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES 260519 - 3

C. Feeders Concealed in Concrete, below Slabs-on-Grade, and Underground:

Type THHN/THWN-2, single conductors in raceway.

D. Branch Circuits Concealed in Ceilings, Walls, and Partitions: Type THHN/THWN-2, single conductors in raceway.

E. Branch Circuits Concealed in Concrete, below Slabs-on-Grade, and Underground:

Type THHN/THWN-2, single conductors in raceway.

3.3 INSTALLATION, GENERAL

A. Conceal cables in finished walls, ceilings, and floors unless otherwise indicated.

B. Complete raceway installation between conductor and cable termination points in accordance with Section 260533.13 "Conduits for Electrical Systems" prior to pulling conductors and cables.

C. Use manufacturer-approved pulling compound or lubricant where necessary; compound used must not deteriorate conductor or insulation. Do not exceed manufacturer's recommended maximum pulling tensions and sidewall pressure values.

D. Use pulling means, including fish tape, cable, rope, and basket-weave wire/cable grips, that will not damage cables or raceway.

E. Support cables according to Section 260529 "Hangers and Supports for Electrical Systems."

3.4 CONNECTIONS

A. Tighten electrical connectors and terminals according to manufacturer's published torque-tightening values. If manufacturer's torque values are not indicated, use those specified in

UL 486A-486B.

B. Make splices, terminations, and taps that are compatible with conductor material and that possess equivalent or better mechanical strength and insulation ratings than unspliced conductors.

C. Wiring at Outlets: Install conductor at each outlet, with at least 12 inch of slack.

3.5 IDENTIFICATION

A. Identify and color-code conductors and cables according to Section 260553 "Identification for Electrical Systems."

B. Identify each spare conductor at each end with identity number and location of other end of conductor and identify as spare conductor.

LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES 260519 - 4

3.6 SLEEVE AND SLEEVE-SEAL INSTALLATION FOR ELECTRICAL PENETRATIONS

A. Install sleeves and sleeve seals at penetrations of exterior floor and wall assemblies. Comply with requirements in Section 260544 "Sleeves and Sleeve Seals for Electrical Raceways and Cabling."

3.7 FIELD QUALITY CONTROL

A. Tests and Inspections:

1. After installing conductors and cables and before electrical circuitry has been energized, test service entrance and feeder conductors for compliance with requirements.

2. After installing conductors and cables and before electrical circuitry has been energized, test service entrance and feeder conductors and conductors feeding the following critical equipment and services for compliance with requirements:

3. Perform each of the following visual and electrical tests:

a. Inspect exposed sections of conductor and cable for physical damage and correct connection according to the single-line diagram.

b. Test bolted connections for high resistance using one of the following:

1) Calibrated torque wrench.

c. Inspect for correct identification.

d. Inspect cable jacket and condition.

e. Continuity test on each conductor and cable.

B. Cables will be considered defective if they do not pass tests and inspections.

C. Prepare test and inspection reports to record the following:

1. Procedures used.

2. Results that comply with requirements.

3. Results that do not comply with requirements, and corrective action taken to achieve compliance with requirements.

END OF SECTION 260519

GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS 260526 - 1

SECTION 260526

GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Grounding and bonding conductors.

2. Grounding and bonding bushings.

3. Grounding and bonding connectors.

4. Grounding and bonding busbars.

5. Grounding (earthing) electrodes.

PART 2 - PRODUCTS

2.1 GROUNDING AND BONDING CONDUCTORS

A. Equipment Grounding Conductor:

1. General Characteristics: 600 V, THHN/THWN-2 wire or cable, green color, in accordance with Section 260519 "Low-Voltage Electrical Power Conductors and Cables."

2.2 GROUNDING AND BONDING BUSHINGS

A. Description: Bonding bushings connect conduit fittings, tubing fittings, threaded metal conduit, and unthreaded metal conduit to metal boxes and equipment enclosures, and have one or more bonding screws intended to provide electrical continuity between bushing and enclosure.

Grounding bushings have provision for connection of bonding or grounding conductor and may or may not also have bonding screws.

B. Source Limitations: Obtain products from single manufacturer.

C. Performance Criteria:

1. Regulatory Requirements:

a. Listed and labeled in accordance with NFPA 70, by qualified electrical testing laboratory recognized by authorities having jurisdiction, and marked for intended location and application.

GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS 260526 - 2

2. Listing Criteria:

a. Grounding and Bonding Equipment: UL CCN KDER; including UL 467.

D. UL KDER - Bonding Bushing:

1. Manufacturers:

a. Cooper Crouse-Hinds.

b. American Fittings Corp.

c. Bridgeport.

d. Or approved equal.

2. General Characteristics: Threaded bushing with insulated throat.

2.3 GROUNDING AND BONDING CONNECTORS

A. Source Limitations: Obtain products from single manufacturer.

B. Performance Criteria:

1. Regulatory Requirements:

a. Listed and labeled in accordance with NFPA 70, by qualified electrical testing laboratory recognized by authorities having jurisdiction, and marked for intended location and application.

2. Listing Criteria:

a. Grounding and Bonding Equipment: UL CCN KDER; including UL 467.

b. Grounding and Bonding Equipment for Communications: UL CCN KDSH;

including UL 467.

C. UL KDER - Lay-In Lug Mechanical-Type Grounding and Bonding Busbar Terminal in main switchboard, pull boxes, and panels:

1. Manufacturers:

a. Cooper Crouse-Hinds.

b. American Fittings Corp.

c. Bridgeport.

d. Or approved equal.

2. General Characteristics: Mechanical-type, copper rated for direct burial terminal with set screw.

GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS 260526 - 3

2.4 GROUNDING AND BONDING BUSBARS

A. Description: Miscellaneous grounding and bonding device that serves as common connection for multiple grounding and bonding conductors.

B. Source Limitations: Obtain products from single manufacturer.

C. Performance Criteria:

1. Regulatory Requirements:

a. Listed and labeled in accordance with NFPA 70, by qualified electrical testing laboratory recognized by authorities having jurisdiction, and marked for intended location and application.

2. Listing Criteria:

a. Grounding and Bonding Equipment: UL CCN KDER; including UL 467.

D. UL KDER - Equipment Room Grounding and Bonding Busbar in Panels, A.T.S., and Main Switchboard:

1. Manufacturers:

a. Cooper Crouse-Hinds.

b. American Fittings Corp.

c. Bridgeport.

d. Or approved equal.

2. General Characteristics:

a. Bus: Rectangular bar of annealed copper.

b. Mounting Stand-Off Insulators: Lexan or PVC.

1) Comply with UL 891 for use in 600 V switchboards, impulse tested at 5000 V.

2.5 GROUNDING (EARTHING) ELECTRODES

A. Description: Grounding electrodes include rod electrodes, and concrete-encased electrodes.

B. Source Limitations: Obtain products from single manufacturer.

C. Performance Criteria:

1. Regulatory Requirements:

a. Listed and labeled in accordance with NFPA 70, by qualified electrical testing laboratory recognized by authorities having jurisdiction, and marked for intended location and application.

GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS 260526 - 4

2. Listing Criteria:

a. Grounding and Bonding Equipment: UL CCN KDER; including UL 467.

D. UL KDER - Rod Electrode:

1. Manufacturers:

a. Burndy.

b. Erico.

c. Thomas & Betts.

d. Or approved equal.

2. General Characteristics: Copper-clad; 3/4 inch by 10 ft.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Inspect test results of grounding system measured at point of electrical service equipment connection.

B. Proceed with connection of electrical service equipment only after unsatisfactory conditions have been corrected.

3.2 SELECTION OF GROUNDING AND BONDING CONDUCTORS

A. Conductors: Install solid conductor for 12 AWGand smaller, and stranded conductors for 10 AWG and larger unless otherwise indicated.

3.3 SELECTION OF CONNECTORS

A. Conductor Terminations and Connections:

1. Pipe and Equipment Grounding Conductor Terminations: Bolted connectors.

2. Underground Connections: Welded connectors except at test wells and as otherwise indicated.

3. Connections to Ground Rods: Bolted connectors.

4. Connections to Structural Steel: Welded connectors.

3.4 INSTALLATION

A. Comply with manufacturer's published instructions.

1. Equipment Grounding:

GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS 260526 - 5

a. Install insulated equipment grounding conductors with feeders and branch circuits.

b. Install insulated equipment grounding conductors with the following items, in addition to those required by NFPA 70:

1) Feeders and branch circuits.

2) Receptacle circuits.

3) Three-phase motor and appliance branch circuits.

4) Busway Supply Circuits: Install insulated equipment grounding conductor from grounding bus in switchgear, switchboard, or distribution panel to equipment grounding bar terminal on busway.

3.5 FIELD QUALITY CONTROL

A. Field tests and inspections must be witnessed by authorities having jurisdiction.

B. Tests and Inspections:

1. After installing grounding system but before permanent electrical circuits have been energized, test for compliance with requirements.

2. Inspect physical and mechanical condition. Verify tightness of accessible, bolted, electrical connections with calibrated torque wrench in accordance with manufacturer's published instructions.

3. Test completed grounding system at each location where maximum ground-resistance level is specified, at service disconnect enclosure grounding terminal, and at individual ground rods. Make tests at ground rods before conductors are connected.

C. Nonconforming Work:

1. Grounding system will be considered defective if it does not pass tests and inspections.

2. Remove and replace defective components and retest.

3.6 PROTECTION

A. After installation, protect grounding and bonding cables and equipment from construction activities. Remove and replace items that are contaminated, defaced, damaged, or otherwise caused to be unfit for use prior to acceptance by Owner.

END OF SECTION 260526

GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS 260526 - 6

CONDUITS FOR ELECTRICAL SYSTEMS 260533.13 - 1

SECTION 260533.13

CONDUITS FOR ELECTRICAL SYSTEMS

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Type ERMC-S duct raceways, elbows, couplings, and nipples.

2. Type PVC duct raceways and fittings.

3. Fittings for conduit, tubing, and cable.

4. Electrically conductive corrosion-resistant compounds for threaded conduit.

5. Solvent cements.

B. Products Installed, but Not Furnished, under This Section:

1. See Section 260553 "Identification for Electrical Systems" for electrical equipment labels.

C. Related Requirements:

1. Section 260519 "Low-Voltage for Electrical Power Conductors and Cables" for nonmetallic underground conduit with conductors (Type NUCC).

2. Section 260543 "Underground Ducts and Raceways for Electrical Systems" for exterior duct banks, manholes, and underground utility construction.

1.2 DEFINITIONS

A. Conduit: A structure containing one or more duct raceways.

B. Duct Raceway: A single enclosed raceway for conductors or cable.

C. Duct Bank: An arrangement of conduit providing one or more continuous duct raceways between two points.

1.3 ACTION SUBMITTALS

A. Product Data:

1. Type ERMC-S duct raceways, elbows, couplings, and nipples.

2. Type PVC duct raceways and fittings.

3. Fittings for conduit, tubing, and cable.

4. Electrically conductive corrosion-resistant compounds for threaded conduit.

5. Solvent cements.

CONDUITS FOR ELECTRICAL SYSTEMS 260533.13 - 2

B. Sustainable design submittals.

1. Solvent cements.

PART 2 - PRODUCTS

2.1 TYPE ERMC-S DUCT RACEWAYS, ELBOWS, COUPLINGS, AND NIPPLES

A. Performance Criteria:

1. Regulatory Requirements: Listed and labeled in accordance with NFPA 70, by qualified electrical testing laboratory recognized by authorities having jurisdiction, and marked for intended location and application.

B. Source Quality Control:

1. Product Data: Prepare and submit catalog cuts, brochures, and performance data illustrating size, physical appearance, and other characteristics of product.

2. Manufacturer's Published Instructions: Prepare and submit installation, testing, and operating instructions for product.

C. UL DYIX - Galvanized-Steel Electrical Rigid Metal Conduit (ERMC-S-G), Elbows, Couplings, and Nipples:

1. Manufacturers:

a. Allied Conduit.

b. Republic Conduit.

c. Rymco.

d. Or approved equal.

2. Exterior Coating: Zinc.

3. Options:

a. Interior Coating: Zinc with organic top coating.

b. Minimum Trade Size: Metric designator 21 (trade size 3/4).

c. Colors: As indicated on Drawings.

2.2 TYPE PVC DUCT RACEWAYS AND FITTINGS

A. Performance Criteria:

1. Regulatory Requirements: Listed and labeled in accordance with NFPA 70, by qualified electrical testing laboratory recognized by authorities having jurisdiction, and marked for intended location and application.

2. Listing Criteria: UL CCN DZYR; including UL 651.

CONDUITS FOR ELECTRICAL SYSTEMS 260533.13 - 3

B. Source Quality Control:

1. Product Data: Prepare and submit catalog cuts, brochures, and performance data illustrating size, physical appearance, and other characteristics of product.

2. Manufacturer's Published Instructions: Prepare and submit installation, testing, and operating instructions for product.

C. UL DZYR - Schedule 40 Rigid PVC Conduit (PVC-40) and Fittings:

1. Manufacturers:

a. Allied Conduit.

b. Republic Conduit.

c. Rymco.

d. Or approved equal.

2. Dimensional Specifications: Schedule 40.

3. Options:

a. Minimum Trade Size: Metric designator 21 (trade size 3/4).

b. Markings: For use with maximum 90 deg C wire.

2.3 FITTINGS FOR CONDUIT, TUBING, AND CABLE

A. Performance Criteria:

1. Regulatory Requirements: Listed and labeled in accordance with NFPA 70, by qualified electrical testing laboratory recognized by authorities having jurisdiction, and marked for intended location and application.

B. Source Quality Control:

1. Product Data: Prepare and submit catalog cuts, brochures, and performance data illustrating size, physical appearance, and other characteristics of product.

2. Manufacturer's Published Instructions: Prepare and submit installation, testing, and operating instructions for product.

C. UL DWTT - Fittings for Type PVC Duct Raceways:

1. Manufacturers:

a. Thomas & Betts.

b. Raco.

c. Bridgeport.

d. Or approved equal.

2. Listing Criteria: UL CCN DWTT; including UL 514B.

CONDUITS FOR ELECTRICAL SYSTEMS 260533.13 - 4

3. Options:

a. Material: Steel.

b. Coupling Method: Raintight compression coupling with distinctive color gland nut.

c. Expansion and Deflection Fittings: UL 651 with flexible bonding jumper.

D. UL FKAV - Fittings for Type EMT Duct Raceways:

1. Manufacturers:

a. Thomas & Betts.

b. Raco.

c. Bridgeport.

d. Or approved equal.

2. Listing Criteria: UL CCN FKAV; including UL 514B.

3. Options:

a. Material: Steel.

b. Coupling Method: Compression coupling, Raintight compression coupling with distinctive color gland nut, and Setscrew coupling.

c. Expansion and Deflection Fittings: UL 651 with flexible bonding jumper.

2.4 ELECTRICALLY CONDUCTIVE CORROSION-RESISTANT COMPOUNDS FOR

THREADED CONDUIT

A. Performance Criteria:

1. Regulatory Requirements: Listed and labeled in accordance with NFPA 70, by qualified electrical testing laboratory recognized by authorities having jurisdiction, and marked for intended location and application.

2. Listing Criteria: UL CCN FOIZ; including UL Subject 2419.

B. Source Quality Control:

1. Product Data: Prepare and submit catalog cuts, brochures, and performance data illustrating size, physical appearance, and other characteristics of product.

2. Manufacturer's Published Instructions: Prepare and submit installation, testing, and operating instructions for product.

C. UL FOIZ - Electrically Conductive Corrosion-Resistant Compound for Threaded Conduit:

1. Manufacturers:

a. Thomas & Betts.

b. Burndy.

c. 3M.

d. IDEAL.

CONDUITS FOR ELECTRICAL SYSTEMS 260533.13 - 5

e. Or approved equal.

2.5 SOLVENT CEMENTS

A. Performance Criteria:

1. Regulatory Requirements: Listed and labeled in accordance with NFPA 70, by qualified electrical testing laboratory recognized by authorities having jurisdiction, and marked for intended location and application.

2. Listing Criteria: UL CCN DWTT; including UL 514B.

B. Source Quality Control:

1. Product Data: Prepare and submit catalog cuts, brochures, and performance data illustrating size, physical appearance, and other characteristics of product.

2. Manufacturer's Published Instructions: Prepare and submit installation, testing, and operating instructions for product.

C. UL DWTT - Solvent Cements for Type PVC Duct Raceways and Fittings:

1. Manufacturers:

a. Thomas & Betts.

b. Old Castle.

c. Arrow Fastener.

d. Or approved equal.

PART 3 - EXECUTION

3.1 SELECTION OF CONDUITS FOR ELECTRICAL SYSTEMS

A. Unless more stringent requirements are specified in Contract Documents or manufacturers' published instructions, comply with NFPA 70 for selection of duct raceways. Consult Architect for resolution of conflicting requirements.

B. Outdoors:

1. Concealed Aboveground PVC-40.

2. Direct Buried: PVC-40.

3.2 INSTALLATION OF CONDUITS FOR ELECTRICAL SYSTEMS

A. Comply with manufacturer's published instructions.

B. Reference Standards for Installation: Unless more stringent installation requirements are specified in Contract Documents or manufacturers' published instructions, comply with the following:

CONDUITS FOR ELECTRICAL SYSTEMS 260533.13 - 6

1. Type ERMC-S: Article 344 of NFPA 70 and NECA NEIS 101.

2. Type PVC: Article 356 of NFPA 70 and NECA NEIS 111.

3. Consult Architect for resolution of conflicting requirements.

C. Special Installation Techniques:

1. General Requirements for Installation of Duct Raceways:

a. Complete duct raceway installation before starting conductor installation.

b. Provide stub-ups through floors with coupling threaded inside for plugs, set flush with finished floor. Plug coupling until conduit is extended above floor to final destination or a minimum of 2 ft above finished floor.

c. Install no more than equivalent of three 90-degree bends in conduit run except for control wiring conduits, for which no more than equivalent of two 90-degree fewer bends are permitted. Support within 12 inch of changes in direction.

d. Make bends in duct raceway using large-radius preformed ells except for parallel bends. Field bending must be in accordance with NFPA 70 minimum radii requirements. Provide only equipment specifically designed for material and size involved.

e. Support conduit within 12 inch of enclosures to which attached.

f. Install duct sealing fittings at accessible locations in accordance with NFPA 70 and fill them with listed sealing compound. For concealed duct raceways, install fitting in flush steel box with blank cover plate having finish similar to that of adjacent plates or surfaces. Install duct sealing fittings in accordance with NFPA 70.

g. Install devices to seal duct raceway interiors at accessible locations. Locate seals so no fittings or boxes are between the seal and the following changes of environments. Seal interior of duct raceways at the following points:

1) Where an underground service duct raceway enters a building or structure.

2) Conduit extending from interior to exterior of building.

3) Where otherwise required by NFPA 70.

h. Cut conduit perpendicular to the length. For conduits metric designator 53 (trade size 2) and larger, use roll cutter or a guide to make cut straight and perpendicular to the length. Ream inside of conduit to remove burrs.

i. Install pull wires in empty duct raceways. Provide polypropylene or monofilament plastic line with not less than 200 lb tensile strength. Leave at least 12 inch of slack at both ends of pull wire. Cap underground duct raceways designated as spare above grade alongside duct raceways in use.

j. Install duct raceways square to the enclosure and terminate at enclosures without hubs with locknuts on both sides of enclosure wall. Install locknuts hand tight, plus one-quarter turn more.

1) Termination fittings with shoulders do not require two locknuts.

k. Terminate threaded conduits into threaded hubs or with locknuts on inside and outside of boxes or cabinets. Install bushings on conduits up to metric designator 35 (trade size 1-1/4) and insulated throat metal bushings on metric designator 41 (trade size 1-1/2) and larger conduits terminated with locknuts. Install insulated throat metal grounding bushings on service conduits.

CONDUITS FOR ELECTRICAL SYSTEMS 260533.13 - 7

2. Types ERMC:

a. Threaded Conduit Joints, Exposed to Wet, Damp, Corrosive, or Outdoor Conditions: Apply listed compound that maintains electrical conductivity to threads of duct raceway and fittings before making up joints. Follow compound manufacturer's published instructions.

3. Type ERMC-S-PVC:

a. Follow manufacturer's installation instructions for clamping, cutting, threading, bending, and assembly.

b. Provide PVC-coated sealing locknut for exposed male threads transitioning into female NPT threads that do not have sealing sleeves, including transitions from PVC couplings/female adapters to Type ERMC-S-PVC elbows in direct-burial applications. PVC-coated sealing locknuts must not be used in place of conduit hub. PVC-coated sealing locknut must cover exposed threads on Type ERMC-S- PVC duct raceway.

c. Coat field-cut threads on PVC-coated duct raceway with manufacturer-approved corrosion-preventing conductive compound prior to assembly.

4. Types PVC:

a. Do not install Type PVC conduit where ambient temperature exceeds 122 deg F.

Conductor ratings must be limited to 75 deg C except where installed in a trench outside buildings with concrete encasement, where 90 deg C conductors are permitted.

b. Comply with manufacturer's published instructions for solvent welding and fittings.

5. Duct Raceway Terminations at Locations Subject to Moisture or Vibration:

a. Provide insulating bushings to protect conductors, including conductors smaller than 4 AWG. Install insulated throat metal grounding bushings on service conduits.

6. Duct Fittings: Install fittings in accordance with NEMA FB 2.10 guidelines.

a. ERMC-S-PVC: Provide only fittings listed for use with this type of conduit. Patch and seal joints, nicks, and scrapes in PVC coating after installing conduits and fittings. Provide sealant recommended by fitting manufacturer and apply in thickness and number of coats recommended by manufacturer.

7. Identification: Provide labels for conduit assemblies, duct raceways, and associated electrical equipment.

a. Provide warning signs.

CONDUITS FOR ELECTRICAL SYSTEMS 260533.13 - 8

3.3 PROTECTION

A. Protect coatings, finishes, and cabinets from damage and deterioration.

1. Repair damage to galvanized finishes with zinc-rich paint recommended by manufacturer.

2. Repair damage to PVC coatings or paint finishes with matching touchup coating recommended by manufacturer.

END OF SECTION 260533.13

UNDERGROUND DUCTS AND RACEWAYS FOR ELECTRICAL SYSTEMS 260543 - 1

SECTION 260543

UNDERGROUND DUCTS AND RACEWAYS FOR ELECTRICAL SYSTEMS

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Type ERMC-S raceways, elbows, couplings, and nipples.

2. Type PVC raceways and fittings.

3. Fittings for conduit, tubing, and cable.

4. Electrically conductive corrosion-resistant compounds for threaded conduit.

5. Solvent cements.

6. Duct accessories.

7. Handholes and boxes for exterior underground wiring.

8. Duct sealing.

B. Related Requirements:

1. Section 260519 "Low-Voltage for Electrical Power Conductors and Cables" for nonmetallic underground conduit with conductors (Type NUCC).

1.2 DEFINITIONS

A. Duct: A single raceway or multiple raceways, installed singly or as components of a duct bank.

B. Duct Bank: Two or more ducts installed in parallel, direct buried or with additional casing materials such as concrete.

C. Handhole: An underground chamber containing electrical cables, sized such that personnel are not required to enter in order to access the cables.

1.3 ACTION SUBMITTALS

A. Product Data:

1. Type ERMC-S raceways, elbows, couplings, and nipples.

2. Type PVC raceways and fittings.

3. Fittings for conduit, tubing, and cable.

4. Electrically conductive corrosion-resistant compounds for threaded conduit.

5. Solvent cements.

6. Duct accessories.

7. Handholes and boxes for exterior underground wiring.

8. Duct sealing.

UNDERGROUND DUCTS AND RACEWAYS FOR ELECTRICAL SYSTEMS 260543 - 2

B. Shop Drawings:

1. Factory-Fabricated Handholes and Boxes Other Than Precast Concrete:

a. Include dimensioned plans, sections, and elevations, and fabrication and installation details.

b. Include duct entry provisions, including locations and duct sizes, and methods and materials for waterproofing duct entry locations.

c. Include cover design.

d. Include grounding details.

e. Include dimensioned locations of cable rack inserts, pulling-in and lifting irons, and other accessories.

C. Field quality-control reports.

1.4 INFORMATIONAL SUBMITTALS

A. Certificates: For concrete and steel used in precast concrete handholes, as required by

ASTM C858.

B. Manufacturers' published instructions.

PART 2 - PRODUCTS

2.1 TYPE ERMC-S RACEWAYS, ELBOWS, COUPLINGS, AND NIPPLES

A. Performance Criteria:

1. Regulatory Requirements: Listed and labeled in accordance with NFPA 70 and marked for intended location and use.

2. General Characteristics: UL 6 and UL CCN DYIX.

B. Galvanized-Steel Electrical Rigid Metal Conduit (ERMC-S-G), Elbows, Couplings, and Nipples:

1. Manufacturers:

a. Allied Conduit.

b. Republic Conduit.

c. Rymco.

d. Or approved equal.

2. Exterior Coating: Zinc.

3. Options:

a. Interior Coating: Zinc with organic top coating.

b. Minimum Trade Size: Metric designator 21 (trade size 3/4).

UNDERGROUND DUCTS AND RACEWAYS FOR ELECTRICAL SYSTEMS 260543 - 3

2.2 TYPE PVC RACEWAYS AND FITTINGS

A. Performance Criteria:

1. Regulatory Requirements: Listed and labeled in accordance with NFPA 70 and marked for intended location and use.

2. General Characteristics: UL 651 and UL CCN DZYR.

B. Schedule 40 Rigid PVC Conduit (PVC-40) and Fittings:

1. Manufacturers:

a. Allied Conduit.

b. Republic Conduit.

c. Rymco.

d. Or approved equal.

2. Dimensional Specifications: Schedule 40.

3. Options:

a. Minimum Trade Size: Metric designator 21 (trade size 3/4).

b. Markings: For use with maximum 90 deg C wire.

2.3 FITTINGS FOR CONDUIT, TUBING, AND CABLE

A. Performance Criteria:

1. Regulatory Requirements: Listed and labeled in accordance with NFPA 70 and marked for intended location and use.

B. Metallic Fittings for Type ERMC, Type IMC, Type PVC, Type EPEC, and Type RTRC Raceways:

1. Manufacturers:

a. Thomas & Betts.

b. Raco.

c. Bridgeport.

d. Or approved equal.

2. General Characteristics: UL 514B and UL CCN DWTT.

3. Options:

a. Material: Steel.

b. Coupling Method: Compression coupling or Raintight compression coupling with distinctive color gland nut.

c. Conduit Fittings for Hazardous (Classified) Locations: UL 1203.

d. Expansion and Deflection Fittings: UL 651 with flexible external bonding jumper.

UNDERGROUND DUCTS AND RACEWAYS FOR ELECTRICAL SYSTEMS 260543 - 4

2.4 ELECTRICALLY CONDUCTIVE CORROSION-RESISTANT COMPOUNDS FOR

THREADED CONDUIT

A. Performance Criteria:

1. Regulatory Requirements: Listed and labeled in accordance with NFPA 70 and marked for intended location and use.

2. General Characteristics: UL Subject 2419 and UL CCN FOIZ.

B. Manufacturers:

1. Thomas & Betts.

2. Burndy.

3. 3M.

4. IDEAL.

5. Or approved equal.

2.5 SOLVENT CEMENTS

A. Performance Criteria:

1. Regulatory Requirements: Listed and labeled in accordance with NFPA 70 and marked for intended location and use.

2. General Characteristics: As recommended by conduit manufacturer in accordance with UL 514B and UL CCN DWTT.

B. Solvent Cements for Type PVC Raceways and Fittings:

1. Manufacturers:

a. Thomas & Betts.

b. Old Castle.

c. Arrow Fastener.

2.6 DUCT ACCESSORIES

A. Duct Spacers: Factory-fabricated, rigid, PVC interlocking spacers; sized for type and size of duct with which used, and selected to provide minimum duct spacing indicated while supporting duct during concreting or backfilling.

1. Manufacturers:

a. Thomas & Betts.

b. Old Castle.

c. Quazite.

B. Underground-Line Warning Tape: In accordance with Section 260553 "Identification for Electrical Systems."

UNDERGROUND DUCTS AND RACEWAYS FOR ELECTRICAL SYSTEMS 260543 - 5

C. Concrete Warning Planks: Nominal 12 by 24 by 3 inch in size, manufactured from polymer concrete.

1. Mark each plank with "ELECTRIC" in 2 inch high, 3/8 inch deep letters.

2.7 HANDHOLES AND BOXES FOR EXTERIOR UNDERGROUND WIRING

A. Performance Criteria:

1. Regulatory Requirements: Listed and labeled in accordance with NFPA 70 and marked for intended location and use.

2. General Characteristics:

a. ASTM C858 for design and manufacturing processes.

b. SCTE 77.

B. Traffic Rated Concrete Galvanized Steel Welded Frame Handholes and Steel Diamond Cover:

1. Description: Molded of concrete and reinforced with steel frame.

2. Manufacturers:

a. Brooks.

b. Old Castle.

c. Quazite.

3. Configuration: Units must be designed for flush burial and have open bottom unless otherwise indicated.

4. Cover: Weatherproof, secured by tamper-resistant locking devices and having structural load rating consistent with enclosure and installed location.

a. Cover Finish: Nonskid finish must have minimum coefficient of friction of 0.50.

b. Cover Legend: Molded lettering, "ELECTRIC".

5. Conduit Entrance Provisions: Conduit-terminating fittings must mate with entering ducts for secure, fixed installation in enclosure wall.

2.8 DUCT SEALING

A. Manufacturers:

a. Hydra Seal S 60.

b. MD3 FiloSeal.

c. NOFIRNO.

d. Or approved equal.

B. Duct-Sealing Compound: Nonhardening, safe for contact with human skin, not deleterious to cable insulation, and workable at temperatures as low as 35 deg F. Compound must be capable of withstanding temperature of 300 deg F without slump and adhering to clean surfaces of

UNDERGROUND DUCTS AND RACEWAYS FOR ELECTRICAL SYSTEMS 260543 - 6

plastic ducts, metallic conduit, conduit and duct coatings, concrete, masonry, lead, cable sheaths, cable jackets, insulation materials, and common metals. Duct sealing compound must be removable without damaging ducts or cables.

C. Inflatable Duct-Sealing System: Wraparound inflatable bladder that seals ducts that are empty or containing conductors against air and water infiltration. System is suitable for use in steel, plastic, or concrete ducts and penetrations.

2.9 SOURCE QUALITY CONTROL

A. Product Data: Prepare and submit catalog cuts, brochures, and performance data illustrating size, physical appearance, and other characteristics of product.

1. Duct-bank materials, including spacers and miscellaneous components.

2. Ducts, conduits, and their accessories, including elbows, end bells, bends, fittings, and solvent cement.

3. Accessories for handholes.

4. Underground-line warning tape.

5. Warning planks.

B. Factory Tests for Handholes and Boxes:

1. Factory Tests and Inspections: Perform the following tests and inspections on handholes and boxes, by, or under supervision of, qualified electrical testing laboratory recognized by authorities having jurisdiction, before delivering to site. Affix label with name and date of manufacturer's certification of system compliance.

a. Concrete Handhole: Test prototypes of handholes for compliance with SCTE 77.

Strength tests must be for specified tier ratings of products supplied. Testing machine pressure gages must have current calibration certification, complying with ISO 9000 and ISO 10012, and traceable to NIST standards.

2. Nonconforming Work:

a. Equipment that does not pass tests and inspections will be considered defective.

3. Factory Test Reports: Prepare and submit factory test and inspection reports.

PART 3 - EXECUTION

3.1 PREPARATION

A. Coordinate layout and installation of duct, duct bank, handholes with final arrangement of other utilities, site grading, and surface features as determined in field. Notify Architect if there is conflict between areas of excavation and existing structures or archaeological sites to remain.

UNDERGROUND DUCTS AND RACEWAYS FOR ELECTRICAL SYSTEMS 260543 - 7

B. Coordinate elevations of duct and duct-bank entrances into handholes with final locations and profiles of duct and duct banks, as determined by coordination with other utilities, underground obstructions, and surface features. Revise locations and elevations as required to suit field conditions and to ensure that duct and duct bank will drain to manholes and handholes, and as approved by Architect.

C. Clear and grub vegetation to be removed, and protect vegetation to remain in accordance with Section 311000 "Site Clearing." Remove and stockpile topsoil for reapplication in accordance with Section 311000 "Site Clearing."

3.2 SELECTION OF UNDERGROUND DUCTS

A. Duct for Electrical Feeders 600 V and Less: PVC-40 unless otherwise indicated.

B. Duct for Electrical Branch Circuits: PVC-40, direct buried unless otherwise indicated.

C. Underground Ducts Crossing Driveways: PVC-40 encased in reinforced concrete.

D. Stub-ups: Concrete encased, PVC-40 and or ERMC-S.

3.3 SELECTION OF UNDERGROUND ENCLOSURES

A. Handholes:

1. Units in Driveway, Parking Lot, and Off-Roadway Locations, Subject to Occasional, Nondeliberate Loading by Heavy Vehicles: Precast concrete, AASHTO HB 17, H-20 structural load rating.

2. Cover design load must not exceed load rating of handhole.

3.4 EARTHWORK

A. Excavation and Backfill: Comply with requirements of drawings and specifications, but do not use heavy-duty, hydraulic-operated, compaction equipment.

B. Cut and patch existing pavement in path of underground duct, duct bank, and underground structures in accordance with drawings and specifications.

3.5 INSTALLATION OF DUCTS AND DUCT BANKS

A. Reference Standards:

1. Unless more stringent requirements are specified in Contract Documents or manufacturers' published instructions, comply with NEMA TCB 2 for installation of underground ducts and duct banks.

2. Consult Architect for resolution of conflicting requirements.

UNDERGROUND DUCTS AND RACEWAYS FOR ELECTRICAL SYSTEMS 260543 - 8

B. Special Techniques:

1. Where indicated on Drawings, install duct, spacers, and accessories into duct-bank configuration shown. Duct installation requirements in this Section also apply to duct bank.

2. Curves and Bends:

a. Use 5-degree angle couplings for small changes in direction. Use manufactured long sweep bends with minimum radius of 48 inch, both horizontally and vertically, at other locations unless otherwise indicated.

b. Field bending must be in accordance with NFPA 70 minimum radii requirements, except bends over 45 degrees must be made with minimum radius of 48 inch. Use only equipment specifically designed for material and size involved. Use PVC heating bender for bending PVC conduit.

c. Duct must have maximum of 180 degrees of bends between pull points.

3. Joints: Use solvent-cemented joints in nonmetallic duct and fittings and make watertight in accordance with manufacturer's published instructions. Stagger couplings so those of adjacent duct do not lie in same plane. Couple steel conduits to ducts with adapters designed for this purpose, and encase coupling with minimum 3 inch of concrete for minimum of 12 inch on each side of coupling.

4. Direct-Buried Duct and Duct Bank:

a. Excavate trench bottom to provide firm and uniform support for duct. Comply with requirements in Section 312000 "Earth Moving" for preparation of trench bottoms for pipes less than 6 inch in nominal diameter.

b. Width: Excavate trench 12 inch wider than duct on each side.

c. Depth: Install top of duct at least 24 inch below finished grade unless otherwise indicated.

d. Set elevation of top of duct bank below frost line.

e. Place minimum 3 inch of sand as bed for duct. Place sand to minimum of 6 inch above top level of duct.

f. Support ducts on duct spacers coordinated with duct size, duct spacing, and outdoor temperature.

g. Spacer Installation: Place spacers close enough to prevent sagging and deforming of duct, with not less than five spacers per 20 ft of duct. Place spacers within 24 inch of duct ends. Stagger spacers approximately 6 inch between tiers. Secure spacers to earth and to ducts to prevent floating during concreting. Tie entire assembly together using fabric straps; do not use tie wires or reinforcing steel that may form conductive or magnetic loops around ducts or duct groups.

h. Install manufactured duct elbows for stub-ups, at building entrances, and at changes of direction in duct direction unless otherwise indicated. Encase elbows for stub-up ducts throughout length of elbow.

i. Install manufactured steel elbows for stub-ups, at building entrances, and at changes of direction in duct.

1) Stub-ups to Outdoor Equipment: Extend concrete-encased steel raceway horizontally minimum of 60 inch from edge of base. Install insulated grounding bushings on terminations at equipment.

UNDERGROUND DUCTS AND RACEWAYS FOR ELECTRICAL SYSTEMS 260543 - 9

a) Stub-ups must be minimum 4 inch above finished base and minimum 3 inch from conduit side to edge of base.

2) Stub-ups to Indoor Equipment: Extend concrete-encased steel raceway horizontally on exterior of wall minimum of 60 inch from edge of wall.

Install insulated grounding bushings on terminations at equipment.

3) Stub-ups through interior floors must be minimum 4 inch above finished floor and no less than 3 inch from conduit side to edge of equipment pad or floor slab.

j. After installing first tier of duct, backfill and compact. Start at tie-in point and work toward end of duct run, leaving ducts at end of run free to move with expansion and contraction as temperature changes during this process. Repeat procedure after placing each tier. After placing last tier, hand place backfill to 4 inch over duct and hand tamp. Firmly tamp backfill around ducts to provide maximum supporting strength. Use hand tamper only. After placing controlled backfill over final tier, make final duct connections at end of run and complete backfilling with normal compaction. Comply with requirements in Section 312000 "Earth Moving" for installation of backfill materials.

5. Warning Planks: Bury warning planks approximately 12 inch above direct-buried duct, placing them 36 inch o.c. Align planks along width and along centerline of duct or duct bank. Provide additional plank for each 12 inch increment of duct-bank width over nominal 18 inch (450 mm). Space additional planks 12 inch apart, horizontally across width of ducts.

6. Underground-Line Warning Tape: Bury nonconducting underground line specified in Section 260553 "Identification for Electrical Systems" no less than 12 inch above concrete-encased duct and duct banks and approximately 12 inch below grade. Align tape parallel to and within 3 inch of centerline of duct bank. Provide additional warning tape for each 12 inch increment of duct-bank width over nominal 18 inch (. Space additional tapes 12 inch apart, horizontally across width of ducts.

7. Ground ducts and duct banks in accordance with Section 260526 "Grounding and Bonding for Electrical Systems."

3.6 INSTALLATION OF HANDHOLES AND BOXES OTHER THAN PRECAST CONCRETE

A. Reference Standards:

1. Consult Architect for resolution of conflicting requirements.

B. Special Techniques:

1. Install handholes and boxes level and plumb and with orientation and depth coordinated with connecting duct, to minimize bends and deflections required for proper entrances.

Use box extension if required to match depths of duct, and seal joint between box and extension as recommended by manufacturer.

2. Elevation: In paved areas and trafficways, set cover flush with finished grade. Set covers of other handholes 1 inch above finished grade.

UNDERGROUND DUCTS AND RACEWAYS FOR ELECTRICAL SYSTEMS 260543 - 10

3. Install removable hardware, including pulling eyes, cable stanchions, cable arms, and insulators, as required for installation and support of cables and conductors and as indicated. Select arm lengths to be long enough to provide spare space for future cables, but short enough to preserve adequate working clearances in enclosure.

4. Field cut openings for duct in accordance with enclosure manufacturer's published instructions. Cut wall of enclosure with tool designed for material to be cut. Size holes for terminating fittings to be used, and seal around penetrations after fittings are installed.

5. Some manufacturers recommend structural protection similar to that described below for enclosures other Ground handholes and boxes in accordance with Section 260526 "Grounding and Bonding for Electrical Systems."

3.7 FIELD QUALITY CONTROL

A. Field tests and inspections must be witnessed by Owner.

B. Tests and Inspections:

1. Demonstrate capability and compliance with requirements on completion of installation of underground duct, duct bank, and utility structures.

2. Pull solid aluminum or wood test mandrel through duct to prove joint integrity and adequate bend radii, and test for out-of-round duct. Provide minimum 12 inch long mandrel equal to duct size minus 1/4 inch. If obstructions are indicated, remove obstructions and retest.

3. Test handhole grounding to ensure electrical continuity of grounding and bonding connections. Measure and report ground resistance as specified in Section 260526 "Grounding and Bonding for Electrical Systems."

C. Nonconforming Work:

1. Underground ducts, raceways, and structures will be considered defective if they do not pass tests and inspections.

2. Correct deficiencies and retest as specified above to demonstrate compliance.

D. Field Quality-Control Reports: Collect, assemble, and submit test and inspection reports.

E. Manufacturer Services: Engage factory-authorized service representative to supervise field tests and inspections.

1. Manufacturer's Field Reports for Field Quality-Control Support: Prepare and submit report after each visit by factory-authorized service representative, documenting activities performed at Project site.

3.8 CLEANING

A. Pull leather-washer-type duct cleaner, with graduated washer sizes, through full length of duct until duct cleaner indicates that duct is clear of dirt and debris. Follow with rubber duct swab for final cleaning and to assist in spreading lubricant throughout ducts.

UNDERGROUND DUCTS AND RACEWAYS FOR ELECTRICAL SYSTEMS 260543 - 11

B. Clean internal surfaces of manholes, including sump, and building interiors affected by Work.

1. Sweep floor, removing dirt and debris.

2. Remove foreign material.

END OF SECTION 260543

UNDERGROUND DUCTS AND RACEWAYS FOR ELECTRICAL SYSTEMS 260543 - 12

VIBRATION AND SEISMIC CONTROLS FOR ELECTRICAL SYSTEMS 260548 - 1

SECTION 260548

VIBRATION AND SEISMIC CONTROLS FOR ELECTRICAL SYSTEMS

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Concrete inserts.

B. Related Requirements:

1. Section 260529 "Hangers and Supports for Electrical Systems" for commonly used electrical supports and installation requirements.

1.2 DEFINITIONS

A. OSHPD: Office of Statewide Health Planning and Development (for the State of California owned and regulated medical facilities).

1.3 ACTION SUBMITTALS

A. Product Data:

1. Concrete inserts.

B. Shop Drawings:

1. Detail fabrication and assembly of equipment bases.

2. Vibration Isolation Base Details: Detail fabrication including anchorages and attachments to structure and to supported equipment. Include adjustable motor bases, rails, and frames for equipment mounting.

3. Show coordination of seismic and wind-load bracing for components with other systems and equipment in the vicinity, including other supports and seismic restraints.

C. Field quality-control reports.

VIBRATION AND SEISMIC CONTROLS FOR ELECTRICAL SYSTEMS 260548 - 2

PART 2 - PRODUCTS

2.1 PERFORMANCE REQUIREMENTS

A. Component Supports:

1. Load…