Attachment_9_Revised_Electrical_Specification_Sections_0002.pdf

OLYM – PMIS 215339 26 05 17 – 1

LOW-VOLTAGE ELECTRICAL

POWER CONDUCTORS AND CABLES

SECTION 26 05 19

LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Copper building wire rated 600 V or less.

2. Connectors, splices, and terminations rated 600 V and less.

1.2 DEFINITIONS

A. MOCP: Maximum overcurrent protection.

B. MCA: Minimum circuit ampacity.

C. Exposed: On or attached to the surface or behind panels designed to allow access. Raceways and cables in unfinished basements in accessible underfloor areas or attics; or behind, above, or below panels designed to allow access; and that may be removed without damage to the building structure or finish are considered exposed.

D. Concealed: Rendered inaccessible by the structure of finish of the building. Raceways and cables supported or located within hollow frames or permanently enclosed by the finish of buildings are considered concealed.

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: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to the following:

1. Southwire Company.

2. Okonite.

C. Standards:

1. Listed and labeled as defined in NEC, 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."

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OLYM – PMIS 215339 26 05 17 – 2

POWER CONDUCTORS AND CABLES

D. Conductors: Copper, complying with ASTM B3 for bare annealed copper and with ASTM B8 or ASTM B496 for stranded conductors.

E. Conductor Insulation:

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

2. Type XHHW-2: Comply with UL 44.

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 NEC, by a qualified testing agency, and marked for intended location and use.

B. Manufacturers: Subject to compliance with requirements, available manufacturers offering

1. 3M Electrical Products.

2. Greaves.

3. Hubbell Power Systems, Inc.

4. Ideal Industries, Inc.

5. ILSCO.

6. NSi Industries LLC.

7. Thomas & Betts Corporation; A Member of the ABB Group.

C. Jacketed Cable Connectors: For steel and aluminum jacketed cables, zinc die-cast with set screws, designed to connect conductors specified in this Section.

D. Lugs: One piece, seamless, designed to terminate conductors specified in this Section.

1. Material: Copper.

2. Type: One or two-hole with standard or long barrels.

3. Termination: Compression.

E. Splices shall be in accordance with the NEC and UL Listing.

PART 3 - EXECUTION

3.1 INSTALLATION

A. Comply with:

1. NEC for Wiring and Protection.

2. NEC for Wiring Methods and Materials.

3. NECA 1: Standard Practices for Good Workmanship in Electrical Construction.

4. NECA 101 Standard for Installing Steel Conduits (RMC, IMC, EMT)

B. The contractor shall verify MOCP and MCA requirements with the listing and labeling of each piece of equipment or device delivered to the field and determine if the feeder or branch circuit http://www.specagent.com/Lookup?ulid=10633 http://www.specagent.com/Lookup?uid=123457116617 http://www.specagent.com/Lookup?uid=123457116611 http://www.specagent.com/Lookup?uid=123457116612 http://www.specagent.com/Lookup?uid=123457116613 http://www.specagent.com/Lookup?uid=123457116614 http://www.specagent.com/Lookup?uid=123457116618

OLYM – PMIS 215339 26 05 17 – 3

POWER CONDUCTORS AND CABLES

is compliant with the listing and labeling. Comply with NEC. The contractor shall inform the COR of any discrepancies.

C. It is assumed that all terminations in the field shall have minimum rated 75°C rated terminals.

The contractor shall field verify all terminals for connection in compliance with NEC. The contractor shall inform the COR of any terminals deviating from 75°C. All conductors are rated for 75°C on plans unless otherwise noted.

3.2 CONDUCTOR MATERIAL APPLICATIONS

A. Branch Circuits and Feeders: THHN/THWN-2 Copper; solid for No. 12 AWG and smaller;

stranded for No. 10 AWG and larger.

3.3 CONDUCTOR INSULATION AND MULTICONDUCTOR CABLE APPLICATIONS AND

WIRING METHODS

A. Feeders: Concealed or exposed: Type THHN/THWN-2, single conductors in raceway.

B. Branch Circuits:

1. General:

a. Branch circuits shall be routed as single conductors in raceway from the panelboard until reaching the room, space, device, or equipment served.

b. The use of flexible raceway to equipment, appliances, surface and lay-in luminaires and devices shall be limited to 6’-0”.

c. The use of metal-clad cable to equipment and appliances is prohibited.

d. Metal-clad cable may be used to serve surface and lay-in luminaires and devices where lengths do not exceed 20’-0” from the junction box served by the raceway.

2. Exposed Branch Circuits not readily visible (typ. above ceiling or other similar spaces) without removal of an access panel: Type THHN/THWN-2 or XHHW-2, single conductors in raceway.

3. Exposed Branch Circuits readily visible: Type THHN/THWN-2 or XHHW-2, single conductors in raceway.

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

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

3.4 INSTALLATION OF CONDUCTORS AND CABLES

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

B. 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.

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

D. Install exposed cables parallel and perpendicular to surfaces of exposed structural members and follow surface contours where possible.

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POWER CONDUCTORS AND CABLES

E. Wiring within Enclosures: Separate power-limited and non-power-limited conductors as recommended by manufacturer with a minimum separation of 0’-6”. Install conductors parallel with or at right angles to sides and back of the enclosure. Bundle, lace, and train conductors to terminal points with no excess. Connect conductors that are terminated, spliced, or interrupted in any enclosure associated with fire-alarm system to terminal blocks. Mark each terminal according to system's wiring diagrams. Make all connections with approved crimp-on terminal spade lugs, pressure-type terminal blocks, or plug connectors.

F. Cable Taps: Use numbered terminal strips in junction, pull, and outlet boxes; cabinets; or equipment enclosures where circuit connections are made.

G. Color-Coding: Color-code Division 27 and Division 28 conductors differently from normal building power wiring.

3.5 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 un-spliced conductors.

1. Comply with NEC.

C. Wiring at Outlets: Install conductor at each outlet, with at least 6 inches of slack.

3.6 IDENTIFICATION

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

Electrical Systems."

3.7 FIELD QUALITY CONTROL

A. Testing Agency: Engage a qualified professional to perform tests and inspections.

B. Perform 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 all conductors #6 AWG and larger.

a. The cabling system shall be certified (inspected, tested and documented) that it is ready for operation.

1) Insulation resistance test:

a) Perform insulation resistance test on each conductor #6 AWG and larger with respect to ground. Applied potential to be 1,000 VDC for one minute.

b) Record test values and submit to the COR. Insulation resistance to be 50 megohm, minimum.

c) Measure insulation resistance of complete circuits with the breakers open.

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POWER CONDUCTORS AND CABLES

b. Forms: Example ORT forms are provided in the supplement at the end of this section.

END OF SECTION

OLYM – PMIS 215339 26 05 26 – 1

GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS

SECTION 26 05 26

1.1 DEFINITIONS

A. Structure: That which is built or constructed, other than equipment.

B. EGC: Equipment ground conductor.

2.1 CONDUCTORS

A. Insulated Conductors: Copper wire or cable insulated for 600 V unless otherwise required by applicable Code or authorities having jurisdiction.

B. Bare Copper Conductors:

1. Solid Conductors: ASTM B3.

2. Stranded Conductors: ASTM B8.

3. Bonding Conductor: No. 4 or No. 6 AWG, stranded conductor.

4. Tinned Bonding Jumper: Tinned-copper tape, braided conductors terminated with copper ferrules; 1-5/8 inches wide and 1/16 inch thick.

2.2 CONNECTORS

A. Listed and labeled by an NRTL acceptable to authorities having jurisdiction for applications in which used and for specific types, sizes, and combinations of conductors and other items connected.

B. Welded Connectors: Exothermic-welding kits of types recommended by kit manufacturer for materials being joined and installation conditions.

C. Bus-Bar Connectors: Mechanical type, cast silicon bronze, solderless compression-type wire terminals, and long-barrel, two-bolt connection to ground bus bar.

D. Conduit Grounding Hubs: Mechanical type, terminal with threaded hub.

E. Ground Rod Clamps: Mechanical type, copper or copper alloy, terminal with hex-head bolt.

2.3 GROUNDING ELECTRODES

A. Ground Rods: Copper-clad steel; 3/4 inch by 10 feet.

OLYM – PMIS 215339 26 05 29 – 1

HANGERS AND SUPPORTS FOR ELECTRICAL SYSTEMS

SECTION 26 05 29

1. Steel slotted support systems.

2. Conduit and cable support devices.

3. Mounting, anchoring, and attachment components, including powder-actuated fasteners, mechanical expansion anchors, concrete inserts, clamps, through bolts, toggle bolts, and hanger rods.

2.1 SUPPORT, ANCHORAGE, AND ATTACHMENT COMPONENTS

A. Steel Slotted Support Systems: Preformed steel channels and angles with minimum 13/32-inch-diameter holes at a maximum of 8 inches one center in at least one surface.

1. Standard: Comply with MFMA-4 factory-fabricated components for field assembly.

2. Material for Channel, Fittings, and Accessories: Stainless steel, Type 304 Stainless steel.

3. Channel Width: Selected for applicable load criteria.

4. Metallic Coatings: Hot-dip galvanized after fabrication and applied according to

MFMA-4.

5. Painted Coatings: Manufacturer's standard painted coating applied according to

MFMA-4.

6. Protect finishes on exposed surfaces from damage by applying a strippable, temporary protective covering before shipping.

B. Conduit and Cable Support Devices: Galvanized Steel hangers, clamps, and associated fittings, designed for types and sizes of raceway or cable to be supported.

C. Mounting, Anchoring, and Attachment Components: Items for fastening electrical items or their supports to building surfaces include the following:

1. Mechanical-Expansion Anchors: Insert-wedge-type, stainless steel, for use in hardened portland cement concrete, with tension, shear, and pullout capacities appropriate for supported loads and building materials where used.

2. Clamps for Attachment to Steel Structural Elements: MSS SP-58 units are suitable for attached structural element.

3. Through Bolts: Structural type, hex head, and high strength. Comply with ASTM F3125/F3125M, Grade A325.

4. Raceway spring steel clamps listed and suitable for the use.

OLYM – PMIS 215339 26 05 29 – 2

3.1 APPLICATION

A. Comply with the following standards for application and installation requirements of hangers and supports, except where requirements on Drawings or in this Section are stricter:

1. NECA 1 (Good Workmanship Standards).

2. NECA 101 (Metallic Raceway Standards).

3. NECA 111 (Nonmetallic Raceway Standards).

4. National Electric Code (NEC) for vertical cable supports.

B. Spring-steel clamps designed for supporting single conduits without bolts may be used for 1-1/2-inch and smaller raceways serving branch circuits and communication systems above suspended ceilings, and for fastening raceways to trapeze supports.

3.2 SUPPORT INSTALLATION

A. Comply with NECA 1 and NECA 101 for installation requirements except as specified in this article.

B. Raceway Support Methods: In addition to methods described in NECA 1, EMT IMC and RMC may be supported by openings through structure members, according to NEC.

C. Strength of Support Assemblies: Where indicated, select sizes of components so strength will be adequate to carry present and future static loads within specified loading limits. Minimum static design load used for strength determination shall be weight of supported components plus 200 lb.

D. Mounting and Anchorage of Surface-Mounted Equipment and Components: Anchor and fasten electrical items and their supports to building structural elements by the following methods unless otherwise indicated by code:

1. To New Concrete: Bolt to concrete inserts.

2. To Masonry: Approved toggle-type bolts on hollow masonry units and expansion anchor fasteners on solid masonry units.

3. To Existing Concrete: Expansion anchor fasteners.

4. To Light Steel: Sheet metal screws.

5. Items Mounted on Hollow Walls and Nonstructural Building Surfaces: Mount cabinets, panelboards, disconnect switches, control enclosures, pull and junction boxes, transformers, and other devices on slotted-channel racks attached to substrate by means that comply with seismic-restraint strength and anchorage requirements.

E. Drill holes for expansion anchors in concrete at locations and to depths that avoid the need for reinforcing bars.

3.3 CONCRETE BASES

OLYM – PMIS 215339 26 05 29 – 3

A. Construct concrete bases of dimensions indicated, but not less than 4 inches larger in both directions than supported unit, and so anchors will be a minimum of 10 bolt diameters from edge of the base.

B. Use 3000-psi, 28-day compressive-strength concrete. Concrete materials, reinforcement, and placement requirements are specified in specification Division 3. Reference Electrical, Structural, and Architectural plan sheets.

C. Anchor equipment to concrete base as follows:

1. Place and secure anchorage devices. Use supported equipment manufacturer's setting drawings, templates, diagrams, instructions, and directions furnished with items to be embedded.

2. Install anchor bolts to elevations required for proper attachment to supported equipment.

3. Install anchor bolts according to anchor-bolt manufacturer's written instructions.

3.4 PAINTING

A. Touchup: Clean field welds and abraded areas of shop paint. Paint exposed areas immediately after erecting hangers and supports. Use same materials as used for shop painting. Comply with SSPC-PA 1 requirements for touching up field-painted surfaces.

1. Apply paint by brush or spray to provide minimum dry film thickness of 2.0 mils.

B. Touchup: Comply with requirements in Specification Division 09 and Architectural plan sheets for cleaning and touchup painting of field welds, bolted connections, and abraded areas of shop paint on miscellaneous metal.

C. Galvanized Surfaces: Clean welds, bolted connections, and abraded areas and apply galvanizing-repair paint to comply with ASTM A780.

OLYM – PMIS 215339 26 05 26 – 2

3.1 COMPLY WITH NEC REQUIREMENTS.

3.2 APPLICATIONS

A. Conductors: Install solid conductor for No. 8 AWG and smaller, and stranded conductors for No. 6 AWG and larger unless otherwise indicated.

B. Conductor Terminations and Connections:

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

2. Underground Connections: Welded connectors.

C. Grounding Conductors: Green insulation.

3.3 EQUIPMENT GROUNDING

A. Install insulated equipment grounding conductors with all feeders and branch circuits.

B. Underground Equipment Grounding Conductors:

1. Bury at least 30 inches below grade.

2. Bare tinned copper conductor sized according to the largest feeder routed with the underground duct per NEC for pullboxes.

3. Conductor shall run the length of underground trench duct and be exothermically bonded to steel pullbox covers and mechanically bonded to steel, enclosures poles, (etc.) using listed and labeled materials for the use.

4. Pullboxes and parking lot poles are considered structures. For any structure containing more than one circuit (which may be 1Ø or 3Ø in accordance with NEC), provide and install (1) ground rod at each structure in addition to the underground EGC.

a. Provide ground rod within the pullbox. Exothermically weld the EGC to the ground rod.

b. At light pole locations, provide the ground rod within the pole base or coil (1) 20’-

0” UFER ground within the pole base from top to bottom. Exothermically weld the EGC to the ground rod or UFER ground. The bonding conductor from the pole shall be mechanically fastened to the pole and exothermically welded ground rod or UFER ground using #6 bare tinned conductor, minimum. Use non-reversable mechanical direct-bury grounding clamps to bond the #6 bare tinned conductor to all metal materials at the light pole cage. All mechanical fasteners shall be listed and labeled for the use.

c. A ground rod shall not be required for structures having only one circuit as defined by NEC. The EGC shall still be required to bond metal parts in pullboxes and light poles. For light poles, the EGC routed with the branch circuit may be used as the EGC at the light pole. For pullboxes, the underground EGC shall be used to bond the lid.

5. Equipment grounding conductors at pullboxes and vaults that are exothermically welded at the lid shall allow contain 5’-0” of slack so that the lid may be laid adjacent to the pullbox on the ground for service or maintenance within the pullbox.

OLYM – PMIS 215339 26 05 26 – 3

3.4 INSTALLATION

A. Grounding Conductors: Route along shortest and straightest paths possible unless otherwise indicated or required by Code. Avoid obstructing access or placing conductors where they may be subjected to strain, impact, or damage.

B. Ground Rods: Drive rods until tops are 2 inches below finished floor or final grade unless otherwise indicated.

1. Interconnect ground rods with grounding electrode conductor below grade and as otherwise indicated. Make connections without exposing steel or damaging coating if any.

2. Use exothermic welds for all below-grade connections.

C. Bonding Straps and Jumpers: Install in locations accessible for inspection and maintenance except where routed through short lengths of conduit.

1. Bonding to Structure: Bond straps directly to basic structure, taking care not to penetrate any adjacent parts.

2. Bonding to Equipment Mounted on Vibration Isolation Hangers and Supports: Install bonding so vibration is not transmitted to rigidly mounted equipment.

3. Use exothermic-welded connectors for outdoor locations.

D. Grounding and Bonding for Piping:

1. Metal Water Service Pipe: Install insulated copper grounding conductors, in conduit, from building's main service equipment, or grounding bus, to main metal water service entrances to building. Connect grounding conductors to main metal water service pipes;

use a bolted clamp connector or bolt a lug-type connector to a pipe flange by using one of the lug bolts of the flange. Where a dielectric main water fitting is installed, connect grounding conductor on street side of fitting. Bond metal grounding conductor conduit or sleeve to conductor at each end.

2. Water Meter Piping: Use braided-type bonding jumpers to electrically bypass water meters. Connect to pipe with a bolted connector.

3. Bond each aboveground portion of gas piping system downstream from equipment shutoff valve.

E. Connections: Make connections so possibility of galvanic action or electrolysis is minimized.

Select connectors, connection hardware, conductors, and connection methods so metals in direct contact are galvanically compatible.

3.5 FIELD QUALITY CONTROL

A. Perform tests and inspections.

B. Tests and Inspections:

OLYM – PMIS 215339 26 05 26 – 4

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 a calibrated torque wrench according to manufacturer's written instructions.

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

a. Measure ground resistance no fewer than two full days after last trace of precipitation and without soil being moistened by any means other than natural drainage or seepage and without chemical treatment or other artificial means of reducing natural ground resistance.

b. Perform tests by fall-of-potential method according to IEEE 81.

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

D. Report measured ground resistances that exceed the following values:

1. Power and Lighting Equipment or System with Capacity of 500 kVA and Less: 10 ohms.

2. Power Distribution Units or Panelboards Serving Electronic Equipment: 3 ohm(s).

E. Prepare test and inspection reports.

F. Excessive Ground Resistance: If resistance to ground exceeds specified values, notify Architect promptly and include recommendations to reduce ground resistance.

G. See attached Supplement No. 1 for ORT Forms.

OLYM – PMIS 215339 26 05 33 – 1

RACEWAYS AND BOXES FOR ELECTRICAL SYSTEMS

SECTION 26 05 33

1.1 REFERENCES

A. See Specification Section 260544, “SLEEVES AND SLEEVE SEALS FOR ELECTRICAL

RACEWAYS AND CABLING”.

B. See Specification Section 260519, “LOW VOLTAGE ELECTRICAL POWER

CONDUCTORS AND CABLES”. Specification section 260519 may supersede specification section 260533, Part 3, Section 3.1.

1.2 SUMMARY

1. Metal conduits and fittings.

2. Nonmetallic conduits and fittings.

3. Metal wireways and auxiliary gutters.

4. Boxes, enclosures, and cabinets.

5. Pull boxes.

1.3 DEFINITIONS

A. RMC: Rigid Metallic Conduit.

B. VC: Rigid Polyvinyl Chloride Conduit.

C. LFMC: Liquid-tight Flexible Metal Conduit.

D. Concealed: Rendered inaccessible by the structure of finish of the building. Raceways and cables supported or located within hollow frames or permanently enclosed by the finish of buildings are considered concealed.

E. Exposed: On or attached to the surface or behind panels designed to allow access. Raceways and cables in unfinished basements in accessible underfloor areas or attics; or behind, above, or below

F. Auxiliary Gutter: A sheet metal enclosure used to supplement wiring spaces at meter centers, distribution centers, switchgear, switchboards, and similar points of wiring systems. The enclosure has hinged or removable covers for housing and protecting electrical wires, cables and busbars. The enclosure is designed for conductors to be laid or set in place after the enclosures have been installed as a complete system.

G. Gutter: A sheet metal enclosure used for wiring spaces at meter centers, distribution centers, switchgear, switchboards, and similar points of wiring systems.

OLYM – PMIS 215339 26 05 33 – 2

H. Cabinet: A space in which to mount devices or other equipment. Cabinets and enclosures are typically equipped with hinged doors that may be lockable, or gasketed.

I. Enclosure: a space within an above ground box to which raceways terminate and wire space is given to redirect, splice, or terminate to power distribution blocks. Cabinets and enclosures are typically equipped with hinged doors that may be lockable, or gasketed.

J. Pull Box: Underground box to which raceways terminate and wire space is given to redirect or splice conductors.

1.4 ACTION SUBMITTALS

A. Product Data: For all products.

2.1 METAL CONDUITS AND FITTINGS

A. Metal Conduit:

1. Listing and Labeling: Listed and labeled as defined in NEC, by a qualified testing agency, and marked for intended location and application.

2. RMC: Comply with ANSI C80.1 and UL 6.

3. LFMC: Flexible steel conduit with PVC jacket and complying with UL 360.

B. Metal Fittings:

1. Comply with NEMA FB 1 and UL 514B.

2. Listing and Labeling: Listed and labeled as defined in NEC, by a qualified testing agency, and marked for intended location and application.

3. Fittings, General: Listed and labeled for type of conduit, location, and use.

4. Conduit Fittings for Hazardous (Classified) Locations: Comply with UL 1203 and NEC.

5. Fittings for EMT:

a. Material: Steel.

b. Type Indoor:

1) RMC: Rigid galvanized threaded.

c. Type Outdoor:

1) RMC: Rigid galvanized threaded.

2) RNC: Rigid Non-metallic push-in couplings and connectors for joining PVC lengths and push in threaded couplings and connectors for transitions from PVC to RMC, or EMT.

3) LFMC: Liquid tight steel or iron.

C. Joint Compound for RMC: Approved, as defined in NEC, by authorities having jurisdiction for use in conduit assemblies, and compounded for use to lubricate and protect threaded conduit joints from corrosion and to enhance their conductivity.

2.2 NONMETALLIC CONDUITS AND FITTINGS

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A. Nonmetallic Conduit:

1. Listing and Labeling: Nonmetallic conduit shall be listed and labeled as defined in NEC, by a qualified testing agency, and marked for intended location and application.

2. Fiberglass:

a. Comply with NEMA TC 14.

b. Comply with UL 2515 for aboveground raceways.

c. Comply with UL 2420 for belowground raceways.

3. PVC: Type EPC-40-PVC, complying with NEMA TC 2 and UL 651 unless otherwise indicated.

B. Nonmetallic Fittings:

1. Fittings, General: Listed and labeled for type of conduit, location, and use.

2. Fittings for PVC: Comply with NEMA TC 3; match to conduit or tubing type and material.

a. Fittings for LFNC: Comply with UL 514B.

3. Solvents and Adhesives: As recommended by conduit manufacturer.

2.3 BOXES, ENCLOSURES, AND CABINETS

A. General Requirements for Boxes, Enclosures, and Cabinets:

1. Boxes, enclosures, and cabinets installed in wet locations shall be listed for use in wet locations.

B. Sheet Metal Outlet and Device Boxes: Comply with NEMA OS 1 and UL 514A.

C. Small Sheet Metal Pull and Junction Boxes: NEMA OS 1.

D. Box extensions used to accommodate new building finishes shall be of same material as recessed box.

E. Cast-Metal Outlet and Device Boxes: Comply with NEMA FB 1, ferrous alloy, Type FD, with gasketed cover.

2.4 PULL BOXES

A. General Requirements for Underground Pull Boxes and Hand Holes:

1. Pull Boxes for use in underground systems shall be designed and identified as defined in NEC, for intended location and application.

2. Boxes installed in wet areas shall be listed and labeled as defined in NEC, by a qualified testing agency, and marked for intended location and application.

B. Underground polymer-Concrete Pullboxes

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1. Polymer-Concrete Cover: Molded of sand and aggregate, bound together with polymer resin, and reinforced with steel, fiberglass, or a combination of the two.

2. Configuration: Designed for flush burial with open bottom unless otherwise indicated.

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

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

5. Cover Legend: Molded lettering, "ELECTRIC”, or “FIRE ALARM” or

“COMMUNICATION” as shown on Drawings.

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

7. Precast concrete structures shall be designed and constructed in accordance with ASTM

C857 and ASTM c858. Concrete compressive strength at 28 days shall not be less than

3,000 PSI.

8. Extension rings: as required.

3.1 RACEWAY APPLICATION

A. Outdoors: Apply raceway products as specified below unless otherwise indicated:

1. Exposed Conduit Subject to damage: RMC.

2. Underground Conduit: PVC Type 40.

3. Connection to Vibrating Equipment (Including Transformers and Hydraulic, Pneumatic, Electric Solenoid, or Motor-Driven Equipment): LFMC.

4. Boxes, Wireways and Enclosures, Aboveground: NEMA 250, Type 3R.

B. Raceway Fittings: Compatible with raceways and suitable for use and location.

1. Rigid Steel Conduit: Comply with NEMA FB 2.10.

2. Flexible Conduit: Comply with NEMA FB 2.20.

3.2 INSTALLATION

A. Comply with NECA 1 and NECA 101 for installation requirements except where requirements on Drawings or in this article are stricter. Comply with NEC limitations for types of raceways allowed in specific occupancies and number of floors.

B. Wireways shall be installed per NEC requirements.

C. Raceways shall be installed in compliance with the the manufacturer installation instructions, this Specification Section and relevant NEC requirements:

D. Keep raceways at least 6 inches away from parallel runs of flues and steam or hot-water pipes.

Install horizontal raceway runs above water and steam piping.

E. Complete raceway installation before starting conductor installation.

F. Arrange stub-ups so curved portions of bends are not visible above finished slab.

OLYM – PMIS 215339 26 05 33 – 5

G. Install no more than the equivalent of three 90-degree bends in any conduit run except for control wiring conduits, for which fewer bends are allowed. Support within 12 inches of changes in direction.

H. Make bends in raceway using large-radius preformed ells. Field bending shall be according to

NEC minimum radii requirements. Use only equipment specifically designed for material and size involved.

I. Conceal conduit within finished walls, ceilings, and floors unless otherwise indicated. Install conduits parallel or perpendicular to building lines.

J. Support conduit within 36” inches of boxes, cabinets and enclosures to which attached.

K. Raceways Embedded in Slabs:

1. Run conduit larger than 1-inch trade size, parallel or at right angles to main reinforcement. Where at right angles to reinforcement, place conduit close to slab support. Secure raceways to reinforcement at maximum 10-foot intervals.

2. Arrange raceways to cross building expansion joints at right angles with expansion fittings.

3. Arrange raceways to keep a minimum of 2 inches of concrete cover in all directions.

4. Do not embed threadless fittings in concrete unless specifically approved by Architect for each specific location.

L. Threaded Conduit Joints, Exposed to Wet, Damp, Corrosive, or Outdoor Conditions: Apply listed compound to threads of raceway and fittings before making up joints. Follow compound manufacturer's written instructions.

M. Raceway Terminations at Locations Subject to Moisture or Vibration: Use insulating bushings to protect conductors including conductors smaller than No. 4 AWG.

N. Terminate threaded conduits into threaded hubs or with locknuts on inside and outside of boxes or cabinets. Install insulated throat metal grounding bushings on service conduits.

O. Install raceways square to the enclosure and terminate at enclosures with locknuts. Install locknuts hand tight plus 1/4 turn more.

P. Do not rely on locknuts to penetrate nonconductive coatings on enclosures. Remove coatings in the locknut area prior to assembling conduit to enclosure to assure a continuous ground path.

Q. Cut conduit perpendicular to the length. For conduits 2-inch trade size and larger, use roll cutter or a guide to make cut straight and perpendicular to the length.

R. Install pull wires in empty raceways. Use polypropylene or monofilament plastic line with not less than 200-lb tensile strength. Leave at least 12 inches of slack at each end of pull wire. Cap underground raceways designated as spare above grade alongside raceways in use.

S. Mount boxes at heights indicated on Drawings. If mounting heights of boxes are not individually indicated, give priority to ADA requirements. Install boxes with height measured to center of box unless otherwise indicated.

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T. Horizontally separate boxes mounted on opposite sides of walls, so they are not in the same vertical channel.

U. Locate boxes so that cover or plate will not span different building finishes.

V. Support boxes of three gangs or more from more than one side by spanning two framing members or mounting on brackets specifically designed for the purpose.

W. Fasten junction and pull boxes to or support from building structure. Do not support boxes by conduits.

3.3 INSTALLATION OF UNDERGROUND CONDUIT

A. Direct-Buried Conduit:

1. All work performed in the field shall comply with NEC requirements.

2. Comply with minimum coverage in accordance with NEC.

3. Compacted trench backfill shall be 95% relative compaction per ASTM D1557

Maximum Dry Density.

4. After installing conduit, backfill and compact. Start at tie-in point, and work toward end of conduit run, leaving conduit at end of run free to move with expansion and contraction as temperature changes during this process. Firmly hand tamp backfill around conduit to provide maximum supporting strength. After placing controlled backfill to within 12 inches of finished grade, make final conduit connection at end of run and complete backfilling with normal compaction as specified in contract documents.

5. Install manufactured duct elbows for stub-ups at poles and equipment and at building entrances through floor unless otherwise indicated. Encase elbows for stub-up ducts throughout length of elbow.

6. Install manufactured rigid steel conduit elbows for stub-ups at poles and equipment and at building entrances through floor.

a. Couple steel conduits to ducts with adapters designed for this purpose and encase coupling with 3 inches of concrete for a minimum of 12 inches on each side of the coupling.

b. For stub-ups at equipment mounted on outdoor concrete bases and where conduits penetrate building foundations, extend steel conduit horizontally a minimum of 60 inches from edge of foundation or equipment base. Install insulated grounding bushings on terminations at equipment.

3.4 INSTALLATION OF UNDERGROUND PULL BOXES

A. Install pull boxes level and plumb and with orientation and depth coordinated with connecting conduits to minimize bends and deflections required for proper entrances.

B. Unless otherwise indicated, support units on a level bed of crushed stone or gravel, graded from

1/2-inch sieve to No. 4 sieve and compacted to same density as adjacent undisturbed earth.

C. Elevation: In paved areas, set so cover surface will be flush with finished grade. Set covers of other enclosures 1 inch above finished grade.

D. 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.

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E. Field-cut openings for conduits according to enclosure manufacturer's written instructions. Cut wall of enclosure with a tool designed for material to be cut. Size holes for terminating fittings to be used, and seal around penetrations after fittings are installed.

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IDENTIFICATION FOR ELECTRICAL SYSTEMS

SECTION 26 05 53

1. Labels.

2. Tape.

3. Cable ties.

4. Underground warning tape.

2.1 COLOR AND LEGEND REQUIREMENTS

A. Color-Coding for Phase-Identification, 600 V or Less: Use colors listed below for ungrounded feeder and branch-circuit conductors.

1. Color shall be factory applied or field applied for sizes larger than No. 8 AWG if authorities having jurisdiction permit.

2. Colors for 240VAC or 208VAC, 3Ø Systems and Circuits:

a. Phase A: Black.

b. Phase B: Red.

c. Phase C: Blue.

d. Neutral: White.

e. Ground: Green.

2.2 LABELS

A. Single-Sided Plastic Equipment Label:

1. Thickness: 1/16” or greater.

2. Font: Times New Roman, 3/16” H.

3. Mounting: Permanent double sided outdoor mounting tape covering the entire back of label.

4. Placement: Centered at top of equipment.

5. White letters on a black field.

6. Size as required, but minimum shall be 1”H x 3”W.

2.3 TAPE

A. Underground-Line Warning Tape:

1. Tape:

a. Recommended by manufacturer for the method of installation and suitable to identify and locate underground electrical and communications utility lines.

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b. Printing on tape shall be permanent and shall not be damaged by burial operations.

c. Tape material and ink shall be chemically inert and not subject to degradation when exposed to acids, alkalis, and other destructive substances commonly found in soils.

2.4 CABLE TIES

A. General-Purpose Cable Ties: Fungus inert, self-extinguishing, one piece, self-locking, and

Type 6/6 nylon.

1. Minimum Width: 3/16 inch.

2. Tensile Strength at 73 Deg F according to ASTM D638: 12,000 psi.

3. Temperature Range: Minus 40 to plus 185 deg F.

4. Color: Black, except where used for color-coding.

B. UV-Stabilized Cable Ties: Fungus inert, designed for continuous exposure to exterior sunlight, self-extinguishing, one piece, self-locking, and Type 6/6 nylon.

1. Minimum Width: 3/16 inch.

2. Tensile Strength at 73 Deg F according to ASTM D638: 12,000 psi.

3. Temperature Range: Minus 40 to plus 185 deg F.

4. Color: Black.

3.1 PREPARATION

A. Self-Adhesive Identification Products: Before applying electrical identification products, clean substrates of substances that could impair bond, using materials and methods recommended by manufacturer of identification product.

3.2 PANELBOARD AND SWITCHBOARD CIRCUIT DIRECTORIES

A. Circuit directories shall be typed or computer-generated using Times New Romans font.

B. Circuit directories shall meet minimum NEC requirements. The contractor shall identify each circuit with room number, room name and equipment served. Standard abbreviations from the NEC and Webster’s dictionary are allowed. (E.g., “207 Janitor WH” or “102,103 RR RCPT”).

3.3 INSTALLATION

A. Coordinate identification with Project Drawings.

B. Elevated Components: Increase sizes of labels, signs, and letters to those appropriate for viewing from the floor.

C. Service equipment at other than dwelling units shall be legibly marked in the field with the maximum available fault current. The field marking(s) shall include the date of the fault-current calculation was performed and be of sufficient durability to withstand the environment involved. The calculation shall be documented and made available to those authorized to design, install, inspect, maintain, or operate the system.

OLYM – PMIS 215339 26 05 53 – 3

D. Electrical equipment, such as switchboards, switchgear, panelboards, industrial control panels, meter socket enclosures, and motor control centers, that is in other than dwelling units, and is likely to require examination, adjustment, servicing, or maintenance while energized, shall be field or factory marked to warn qualified persons of electric arc flash hazards. The marking shall meet the requirements in NEC and shall be located so as to be clearly visible to qualified persons before examination, adjustment, servicing, or maintenance of the equipment.

E. Each service disconnect shall be permanently marked to identify it as a service disconnect.

F. Single-Sided Equipment Labels:

1. Adhere labels to equipment using an optically clear two-part epoxy mix. Do not screw or use rivets fasten labels to equipment.

2. All existing and new panelboards, switchgear, and disconnect nameplates shall follow the examples below:

PANEL A

FED FROM MSB

400A, 277/480, 3Ø, 22kAIC

XFMR B

FED FROM PANEL A

480:120/208V, 3Ø, 75Kva

FIRE ALARM CONTROL PANEL

FED FROM PANEL A, CKT 22

3. Motor enclosures shall follow the example below:

MOTOR CONTACT ENCLOSURE

FED FROM Panel A

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PANELBOARDS

SECTION 26 24 16

PANEL BOARDS

1. Lighting and appliance branch-circuit panelboards.

2. Disconnecting and overcurrent protection devices.

A. ATS: Acceptance testing specification.

B. GFCI: Ground-fault circuit interrupter.

C. MCCB: Molded-case circuit breaker.

1.3 ACTION SUBMITTALS

A. Product Data: For each type of panelboard.

1. Include materials, switching and overcurrent protective devices, [SPDs, ]accessories, and components indicated.

2. Include dimensions and manufacturers' technical data on features, performance, electrical characteristics, ratings, and finishes.

3. Product Selection for Restricted Space: Drawings indicate maximum dimensions for panelboards including clearances between panelboards and adjacent surfaces and other items. Comply with indicated maximum dimensions.

1.4 QUALITY ASSURANCE

A. Manufacturer Qualifications: ISO 9001 or 9002 certified.

1.5 FIELD CONDITIONS

A. Environmental Limitations:

1. Do not deliver or install panelboards until spaces are enclosed and weathertight, wet work in spaces is complete and dry, work above panelboards is complete, and temporary HVAC system is operating and maintaining ambient temperature and humidity conditions at occupancy levels during the remainder of the construction period.

B. Interruption of Existing Electric Service: Do not interrupt electric service to facilities occupied by Owner or others unless permitted under the following conditions and then only after arranging to provide temporary electric service according to requirements indicated:

OLYM – PMIS 215339 26 24 16 – 2

1. Notify Owner no fewer than two days in advance of proposed interruption of electric service.

2. Do not proceed with interruption of electric service without Owner's written permission.

2.1 PANELBOARDS AND LOAD CENTERS COMMON REQUIREMENTS

A. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NEC, by a qualified testing agency, and marked for intended location and application.

B. Comply with NEMA PB 1.

C. Comply with NEC.

D. Enclosures: As indicated on Drawings.

1. Rated for environmental conditions at installed location.

a. Outdoor Locations: NEMA 250, Type 3R.

2. Front: Secured to box with concealed trim clamps. For surface-mounted fronts, match box dimensions; for flush-mounted fronts, overlap box. Trims shall cover all live parts and shall have no exposed hardware.

3. Hinged Front Cover: Door-in-door hinged trim. Trims shall cover all live parts and shall have no exposed hardware.

4. Gutter Extension and Barrier: Same gage and finish as panelboard enclosure; integral with enclosure body. Arrange to isolate individual panel sections.

5. Finishes:

a. Panels and Trim: Steel, factory finished immediately after cleaning and pretreating with manufacturer's standard two-coat, baked-on finish consisting of prime coat and thermosetting topcoat.

b. Back Boxes: Galvanized steel.

E. Phase, Neutral, and Ground Buses:

1. Phase & Neutral: Tin-plated aluminum.

2. Ground: Copper.

3. Interiors shall be factory assembled into a unit. Replacing switching and protective devices shall not disturb adjacent units or require removing the main bus connectors.

4. Equipment Ground Bus: Adequate for feeder and branch-circuit equipment grounding conductors; bonded to box.

5. Full-Sized Neutral: Equipped with full-capacity bonding strap for service entrance applications. Mount electrically isolated from enclosure. Do not mount neutral bus in gutter.

F. Conductor Connectors: Suitable for use with conductor material and sizes.

1. Material: Tin-plated aluminum.

2. Terminations shall allow use of 75 deg C rated conductors without derating.

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3. Size: Lugs suitable for indicated conductor sizes, with additional gutter space, if required, for larger conductors.

4. Main and Neutral Lugs: Mechanical type, with a lug on the neutral bar for each pole in the panelboard.

5. Ground Lugs and Bus-Configured Terminators: Mechanical type, with a lug on the bar for each pole in the panelboard.

G. NRTL Label: Panelboards or load centers shall be labeled by an NRTL acceptable to authority having jurisdiction for use as service equipment with one or more main service disconnecting and overcurrent protective devices. Panelboards or load centers shall have meter enclosures, wiring, connections, and other provisions for utility metering. Coordinate with utility company for exact requirements.

H. Panelboard Short-Circuit Current Rating: Fully rated to interrupt symmetrical short-circuit current available at terminals. Assembly listed by an NRTL for 100 percent interrupting capacity.

1. Panelboards and overcurrent protective devices rated 240 V or less shall have short-circuit ratings as shown on Drawings, but not less than 10,000 A rms symmetrical.

2. Panelboards and overcurrent protective devices rated above 240 V and less than 600 V shall have short-circuit ratings as shown on Drawings, but not less than 14,000 A rms symmetrical.

2.2 PERFORMANCE REQUIREMENTS

A. Seismic Performance: Panelboards shall withstand the effects of earthquake motions determined according to ASCE/SEI 7.

2.3 POWER PANELBOARDS

A. Manufacturers: Subject to compliance with requirements, available manufacturers offering

1. Eaton.

2. Siemens Industry, Inc., Energy Management Division.

3. Square D.

B. Panelboards: NEMA PB 1, distribution type.

C. Doors: Hinged door-in-door, secured with vault-type latch with tumbler lock; keyed alike.

D. Mains: As indicated on Drawings.

E. Branch Overcurrent Protective Devices: Bolt-on circuit breakers.

F. Branch Overcurrent Protective Devices for Circuit-Breaker Frame Sizes Larger Than 125 A:

Bolt-on circuit breakers.

2.4 DISCONNECTING AND OVERCURRENT PROTECTIVE DEVICES

A. MCCB: Comply with UL 489, with interrupting capacity to meet available fault currents.

http://www.specagent.com/Lookup?ulid=11316 http://www.specagent.com/Lookup?uid=123457087242 http://www.specagent.com/Lookup?uid=123457087244

OLYM – PMIS 215339 26 24 16 – 4

1. Thermal-Magnetic Circuit Breakers:

a. Inverse time-current element for low-level overloads.

b. Instantaneous magnetic trip element for short circuits.

c. Adjustable magnetic trip setting for circuit-breaker frame sizes 250 A and larger.

2. Adjustable Instantaneous-Trip Circuit Breakers: Magnetic trip element with front-mounted, field-adjustable trip setting.

3. Handle Clamp: Loose attachment, for holding circuit-breaker handle in on position.

4. Circuit breaker lockouts allowing for lock-out-tag-out.

5. GFCI Circuit Breakers: Single- and double-pole configurations with Class A ground-fault protection (6-mA trip).

6. MCCB Features and Accessories:

a. Standard frame sizes, trip ratings, and number of poles.

b. Breaker handle indicates tripped status.

c. UL listed for reverse connection without restrictive line or load ratings.

d. Lugs: Mechanical style, suitable for number, size, trip ratings, and conductor materials.

3.1 EXAMINATION

A. Verify actual conditions with field measurements prior to ordering panelboards to verify that equipment fits in allocated space in, and comply with, minimum required clearances specified in NEC.

B. Examine panelboards before installation. Reject panelboards that are damaged, rusted, or have been subjected to water saturation.

C. Examine elements and surfaces to receive panelboards for compliance with installation tolerances and other conditions affecting performance of the Work.

D. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 INSTALLATION

A. Coordinate layout and installation of panelboards and components with other construction that penetrates walls or is supported by them, including electrical and other types of equipment, raceways, piping, encumbrances to workspace clearance requirements, and adjacent surfaces.

Maintain required workspace clearances and required clearances for equipment access doors and panels.

B. Comply with NECA 1.

C. Temporary Lifting Provisions: Remove temporary lifting eyes, channels, and brackets and temporary blocking of moving parts from panelboards.

D. The center of the operating handle of switches or circuit breakers used as switches shall not be mounted higher than 79” above the floor or working platform per NEC.

E. Mount panelboard cabinet plumb and rigid without distortion of box.

OLYM – PMIS 215339 26 24 16 – 5

F. Install overcurrent protective devices and controllers not already factory installed.

1. Set field-adjustable, circuit-breaker trip ranges.

2. Tighten bolted connections and circuit breaker connections using calibrated torque wrench or torque screwdriver per manufacturer's written instructions.

G. Make grounding connections and bond neutral for services and separately derived systems to ground. Make connections to grounding electrodes, separate grounds for isolated ground bars, and connections to separate ground bars.

H. Install filler plates in unused spaces.

I. Arrange conductors in gutters into groups and bundle and wrap with wire ties.

J. Examine the area where panelboard(s) and/or loadcenter(s) shall be installed. Ensure compliance with NEC 110.26 for spaces about electrical equipment.

K. Comply with NEC. Circuit breaker lockouts allowing for lock-out-tag-out shall be provided for all:

1. Motors.

3.3 IDENTIFICATION

A. Create a directory to indicate installed circuit loads; incorporate Owner's final room designations. Handwritten directories are not acceptable. Install directory inside panelboard door. All directories shall be typed or computer printed.

3.4 FIELD QUALITY CONTROL

A. Acceptance Testing Preparation:

1. Test insulation resistance for each panelboard bus, component, connecting supply, feeder, and control circuit.

2. Test continuity of each circuit.

3.5 ADJUSTING

A. Adjust moving parts and operable components to function smoothly and lubricate as recommended by manufacturer.

OLYM – PMIS 215339 26 28 16 – 1

ENCLOSED…