11 LBNL Facilities Master Specifications 260523_Low-Voltage Electrical Power Conductors and Cables.docx

SECTION 07142 - HOT FLUID-APPLIED WATERPROOFING

BUILDING NO. SC#

PROJECT NAME

SECTION 260523 – LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES

(24 VOLT AC/DC OR LESS)

PART 1 - GENERAL

1.1 SUMMARY

A. Related Documents:

1. Drawings and general provisions of the Subcontract apply to this Section.

2. Review these documents for coordination with additional requirements and information that apply to work under this Section.

B. Section Includes:

1. Wire and cable - Instrument and Control System for 24 volts AC/DC and lower.

2. Wiring connections, terminations and labeling.

3. Electrical connections to equipment specified under other Sections or furnished by the University.

C. Related Sections:

1. Division 01, Section 010000, General Requirements.

2. Division 01, Section 013500, Special Procedures.

3. Division 07, Section 018413, Penetration Firestopping.

4. Division 25, Section 255000, Facilities Monitoring and Control System (FMCS).

5. Division 26, Section 260500, Common Work Results for Electrical.

6. Division 26, Section 260501, Inspections and Testing for Electrical Work.

7. Division 26, Section 260533, Electrical Conduit.

8. Division 26, Section 260533.13, Boxes for Electrical Systems.

9. Division 26, Section 260536, Cable Trays for Electrical Systems.

10. Division 26, Section 260923, Lighting Control Devices.

11. Division 26, Section 262726, Wiring Devices.

1.2 REFERENCES

A. General:

1. The following documents form part of the Specifications to the extent stated. Where differences exist between codes and standards, the one affording the greatest protection shall apply.

2. Unless otherwise noted, the edition of the referenced code or standard that is current at the time of the “date of record” for the Work shall be considered the effective code or standard for the duration of the project.

3. Refer to Division 01, Section 010000, General Requirements, for the list of applicable regulatory requirements.

4. Refer to specific Division 26 Sections for additional referenced codes and standards.

B. ANSI/NFPA 70 - National Electrical Code.

C. ASTM International.

D. Institute of Electrical and Electronics Engineers (IEEE).

E. Insulated Cable Engineers Association (ICEA).

F. LBNL Construction Details and Design Guidelines (CDDG), Vol. 3 – Construction Details, Part VI – Electrical Details.

G. LBNL Electrical Authority Having Jurisdiction: Standard Procedure for Safe Electrical Installations (IAHJ Program).

H. LBNL Electrical Safety Manual.

I. LBNL Pub-3000 Chapter 8 – Electrical Safety Program.

J. LBNL Pub-3000 Chapter 14 – Electrical Equipment Safety Program.

K. LBNL Pub-3000 Chapter 18 – Lockout/Tagout Program.

L. NEMA – National Electrical Manufacturers Association:

1. NEMA WC 55 Instrument Cables and Thermocouple Wire.

M. NETA ATS - Acceptance Testing Specifications for Electrical Power Distribution Equipment and Systems.

N. NFPA 70E - Standard for Electrical Safety in the Workplace.

O. UL – Underwriters' Laboratories.

1.3 SUBMITTALS

A. Submit under provisions of Division 01, Section 010000, General Requirements, “Submittals”; Division 01, Section 013500, Special Procedures, “Drawings and Specifications”; Division 26, Section 260500, Common Work Results for Electrical, “Submittals"; and as required by other sections of the Specifications.

B. Shop Drawings: The Subcontractor shall submit for approval Shop Drawings prepared in accordance with Division 01, Section 010000, General Requirements, “Submittals", and as required by other sections of the Specifications.

C. All submittals and shop drawings shall be reviewed and approved by the Facilities Division Utility Group Electrical Engineer before procurement or fabrication of material and equipment.

D. Submit shop drawings and product data on Low Volt Electrical Power Conductors and Cable.

1.4 QUALITY ASSURANCE

A. Products shall be tested, approved and labeled/listed by Underwriters Laboratories, Inc., or by a nationally recognized testing laboratory (NRTL) as listed in Division 26, Specification 260500, Common Work Results for Electrical.

B. Electrical equipment and materials shall be new and within one year of manufacture, complying with the latest codes and standards. No used, re-built, refurbished and/or re-manufactured electrical equipment and materials shall be furnished on this project.

1.5 COORDINATION

A. Refer to Division 01, Section 010000, General Requirements, “Coordination of Work”.

B. Refer to Division 01, Section 013500, Special Procedures, “Coordination”; and Section 013500A, Supplement for Equipment Energization Plan: Energization Validation & Authorization Package (EVAP).

C. Refer to the LBNL Electrical Authority Having Jurisdiction: Standard Procedure for Safe Electrical Installations (IAHJ Program) in regards to the Facilities Energization Validation and Authorization Package (EVAP) process necessary before equipment energization.

D. Refer to construction drawings for the type of the cables to be furnished and installed under this project.

1.6 DELIVERY, STORAGE, AND HANDLING

A. Deliver materials to site in unopened cartons, reels or bundles as appropriate, clearly identified with manufacturer's name, Underwriter's or other approved label, grade or identifying number.

B. Store in a clean, dry space. Maintain factory wrapping or provide an additional heavy canvas or heavy plastic cover to protect units from dirt, water, construction debris, and traffic.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Belden Cables.

B. Anixter Cables.

C. Connect Air.

D. Windy City Wire.

E. Okonite Company.

2.2 LOW VOLTAGE CABLE JACKET COLORS

A.

2.3 COMMUNICATION/PUBLIC ADDRESS CABLE

A. All communications wiring shall comply with NEC Article 800. Cable shall be rated NEC type CM for communications general purpose use, or CMP for communications plenum cable.

B. General purpose communications cable shall be tinned copper, solid, PVC insulated conductors; unshielded; single twisted pair with an overall PVC jacket. Jacket insulation shall be rated not less than 300 Volts and 80 C. The cable shall be No 22AWG minimum, Belden 8740 or approved equal.

C. Plenum rated communications cable shall be tinned copper, solid, teflon insulated conductors; unshielded; single twisted pair with an overall teflon jacket. The jacket insulation shall be rated not less than 300 Volts and 200 C. Plenum rated communications cable shall be No. 22 AWG minimum, Belden 6520UE or approved equal.

2.4 FACILITY MONITORING AND CONTROL SYSTEM (FMCS) COMMUNICATION CABLES

A. N2 Bus communication cable run indoors in conduit shall be 3 conductor, bare or tinned copper, stranded, twisted, 18 AWG, foil shielded, 22 AWG drain wire, PVC jacket, UL type CM. Belden 8770 or equal.

B. N2 Bus communication cable run indoors in a plenum or outdoors in conduit shall be 3 conductor, bare or tinned copper, stranded, twisted, 18 AWG, foil shield, 22 AWG drain wire or braid, plenum rated jacket, UL type CMP. Belden 83653, Johnson Controls CBL-18/3BLU-WC or equal.

C. BACnet MS/TP or ARC156 communication cable run indoors in conduit shall be 3 conductor, bare or tinned copper, stranded, twisted, 22 AWG, foil shielded, 22 AWG drain wire, PVC jacket, UL type CM.

D. BACnet MS/TP or ARC156 communication cable run indoors in a plenum or outdoors in conduit shall be 3 conductor, bare or tinned copper, stranded, twisted, 22 AWG, foil shielded, 22 AWG drain wire, PVC jacket, UL type CMP.

2.5 MICROPHONE CABLE

A. Microphone Cable: Microphone cable shall be 24 AWG, 2-coper conductors, braid shielded with an overall black PVC jacket, Belden 1812A or approved equal.

2.6 MONITORING AND CONTROL SYSTEMS:

A. Conductors for Class 1 remote-control and signal circuits and Class 2 power-limited circuits shall comply with NEC 725.

B. Control Cable for Class 1 Remote Control and Signal Circuits: Copper conductor, 600V PVC insulation, rated 60 C; individual conductors twisted together [100 percent shielded], and covered with [an overall PVC jacket.] [an aluminum sheath.] [interlocked] [aluminum] [steel] armor with an overall PVC jacket.

C. Control Cable for Class 2 or Class 3 Remote Control and Signal Circuits: Copper conductor, 300V PVC insulation, rated 60 C; individual conductors twisted together, [100 percent shielded,] and covered with an overall PVC jacket; and listed by a Nationally Recognized Testing Laboratory (NRTL) recognized by LBNL.

D. Plenum Cable for Class 2 or Class 3 Remote Control and Signal Circuits: Copper conductor; 300V insulation, rated 60 C; individual conductors twisted together [100 percent shielded,] and covered with a nonmetallic jacket; and listed by recognized NRTL for use in air handling ducts, hollow spaces used as ducts, and plenums.

E. Minimum size shall be No. 18AWG.

2.7 ANALOG AND DIGITAL SIGNAL CABLES:

A. Analog and digital signal wiring shall comply with NEC Article 725. Cable shall be rated NEC type CL2, Class 2 for general purpose; or type CL2P, Class 2 plenum for plenum rated cables, or substitutions allowed by NEC Articles 725.

B. General purpose signal cables shall be tinned copper, stranded, polyethylene insulated conductors; twisted pair or triad; 100 percent aluminum-polyester shield with a No. 20AWG stranded, tinned copper drain wire; and an overall PVC jacket. Jacket insulation shall be rated not less than 300 Volts and 60 C. Single pair or triad signal cables shall be No. 18 AWG. The twisted single pair cable shall be type Belden 8760, and twisted single triad, type Belden 8770 or approved equal.

C. Signal plenum cable shall be tinned copper, stranded, teflon insulated conductors; single twisted pair; 100 percent aluminum-polyester shield; with a No. 20AWG stranded, tinned copper drain wire; tape wrapped; and an overall teflon insulated jacket. Jacket insulation shall be rated not less than 300 Volts and 150 C. The plenum cable shall be No. 18 AWG, Belden 88760 for single pair, and Belden 6301FE for single triad cable or approved equal.

2.8 TRAY CABLES

A. Cables installed in trays shall be TC rated for such application. The cables shall be installed in accordance with the requirements of NEC - 392.

2.9 CARD ACCESS SYSTEM CABLES

A. Lock Power Cable: Unless otherwise specified, 24VDC lock power cabling shall be 18 AWG, single twisted pair with cable assembly similar to as specified in Paragraph 2.3.B., this Section. Plenum cable assembly for single twisted pair shall be similar to as specified in Paragraph 2.3.C., this Section.

B. Card Reader Cable: Unless otherwise specified, card reader cable shall be 20 AWG, four (4) twisted individually shielded pairs with an aluminum-polyester shield and PVC insulation; assembled with a stranded, tinned copper drain wire; and an insulated overall PVC jacket. Jacket insulation shall be rated not less than 300 Volts and 60 C. The cable shall be Belden 8725 or approved equal.

C. Plenum rated cable for the card reader shall be 20 AWG, four (4) twisted individually shielded pairs with an aluminum-polyester shield and teflon insulation; assembled with a stranded, tinned copper drain wire; and an insulated overall fluorocopolymer (PVDF) jacket. Jacket insulation shall be rated not less than 300 Volts and 60 C. The cable shall be Belden 89901 or approved equal.

PART 3 - EXECUTION

3.1 INSPECTION AND VERIFICATION

A. Verify that system components are installed and ready for wiring and terminations.

B. Verify that field measurements are as shown on Drawings and report discrepancies to the University.

C. Verify locations of electrical panels, field processing units (FPU), enclosures, sensors, transducers, relays, actuators, and other devices to be interconnected as shown on the drawings prior to rough-in.

D. Verify that the electrical boxes shown on Drawings are in approximate locations unless dimensioned.

E. Verify that the wire and cable routing shown on Drawings is approximate unless dimensioned.

F. Where wire and cable routing is not shown, and only destination is indicated, subcontractor shall determine the exact routing and lengths required, and shall prepare conduit and wiring diagram for University’s review and approval before installing conduit and wiring.

G. Subcontractor shall be fully responsible for complete installation and modifications and comply with the requirements of project construction drawings and specifications.

3.2 INSTALLATION

A. Conduit and wiring shall be installed in compliance with the applicable Codes and Standards as listed in “References” (Paragraph 1.2., this Section) and other pertinent sections of these specifications.

B. Review equipment submittals prior to installation and electrical rough-in. Verify location, size, and type of connections. Coordinate details of equipment connections with supplier and installer.

C. Wires and cables shall be installed in a professional workmanlike manner, suitable for the intent of the device and consistent with generally accepted industry standards. Installation shall be subject to University's approval as to location and wiring method.

D. All NEC Class 1 (line voltage) wiring shall be UL Listed in approved raceway according to NEC and Division 16 requirements.

E. All low-voltage wiring shall meet NEC Class 2 requirements. (Low-voltage power circuits shall be sub-fused when required to meet Class 2 current limit.)

F. Where NEC Class 2 (current-limited) wires are in concealed and accessible locations, including ceiling return air plenums, approved cables not in raceway may be used provided that cables are UL Listed for the intended application. For example, cables used in ceiling plenums shall be UL Listed specifically for that purpose.

G. All wiring in mechanical, electrical, or service rooms—or where subject to mechanical damage— shall be installed in raceway.

H. Do not install Class 2 wiring in raceway containing Class 1 wiring. Boxes and panels containing voltage greater than 50 volts may not be used for low-voltage wiring except for the purpose of interfacing the two (e.g., relays and transformers).

I. Where Class 2 wiring is run exposed, wiring is to be run parallel along a surface or perpendicular to it and neatly tied at 3 meter (10 foot) intervals. Where plenum cables are used without raceway, they shall be supported from or anchored to structural members. Cables shall not be supported by or anchored to ductwork, electrical raceways, piping, seismic restraint wires, or ceiling suspension systems.

J. All wire-to-device connections shall be made at a terminal block or terminal strip. All wire-to-wire connections shall be at a terminal block.

K. Use of existing raceway systems, including wireways and cable trays, requires written permission by the University.

L. All wiring shall be installed as continuous lengths, with no splices permitted between termination points. Install plenum wiring in sleeves where it passes through walls and floors. Maintain fire rating at all penetrations.

M. Control and status relays are to be located in designated enclosures only. These enclosures include packaged equipment control panel enclosures unless they also contain Class 1 starters.

N. The contractor shall terminate all control and/or interlock wiring and shall maintain updated (as- built) wiring diagrams with terminations identified at the job site.

O. Class I wiring entering the FPUs, control panels or instrument devices shall be isolated from low voltage wire and cable by means of a physical barrier or in a slotted wall wire duct separate from the Class 2 and 3 wiring system.

P. All wiring shall be identified with permanent wire labels, using alphanumeric designations. Terminations shall be identically labeled for the same wire (i.e., common conductors terminated in multiple locations). Wire labels shall agree with the wire designations provided on the as-built termination diagrams and interconnection diagrams. Utilize yellow plastic slip-on jackets for wiring and permanently stenciled identification on terminals or approved equal labeling. Subcontractor shall submit a description of the proposed labeling method for the University's approval prior to installation of wire or cable.

Q. All wiring within enclosures shall be neatly bundled and strapped or fastened to sub-panels or enclosure surfaces with T&B Ty-Rap, Virginia Plastics, or equal. Wiring connected to hinged doors shall be bundled and sleeved in a flexible plastic tubing to permit opening and closing of the door without straining wiring and without abrasion of wire insulation.

R. Identify conductors in junction and similar locations where conductors are accessible with Thomas and Betts, Brady, or equal, printed plastic adhesive tapes to show circuit loop number. Wrap tapes at least two turns around conductor. Use numbered adhesive tapes, tags or insulation color to permit identification of individual wire or cable for communication, alarm, and control conductors. Subcontractor shall submit a description of the proposed labeling method for the University's approval prior to installation of wire or cable.

S. Following polarity shall be maintained with the insulation color of the conductors:

3.3 TERMINATIONS

A. Electrical connections shall be made on the terminal strips/blocks inside housings, boxes, or enclosures, and shall be screw terminal connections. Twisted and taped connections, wire splices using wire nuts, and compression-type splice connectors designed to cut through insulation are specifically prohibited.

B. The conductor shield drain wire shall only be terminated at the power source end. In no case shall cable shield drain wire be terminated in more than one location, or not terminated at all.

3.4 INTERFACE WITH OTHER SYSTEMS

A. Existing fire and smoke detection system functions, firemen's control station functions, electrical overloads and proof of flow switches, and other safety features and functions of the existing systems shall not be compromised during or after the control system installation, unless the modification is shown on the construction documents. The contractor shall coordinate and obtain written approval from the University before disabling life safety system.

B. Identify each conductor with its control loop number or other designation as indicated on the Drawings.

3.5 TESTING

A. Tests shall be made in the presence of an LBNL Inspector or the Electrical AHJ’s designated representative. The application or interruption of power shall be programmed and directed in accordance with the approved EVAP, inclusive of the Equipment Energization Plan and necessary permits, work tasks and safety compliance steps.

B. As minimum, installation and testing of the signal cables shall include the following:

1. Each signal pair and triad shall be tested for electrical continuity. The Subcontractor shall measure loop resistance of each pair and triad. For pair or triad with loop resistance of more than 50 Ohms, including the intrinsically safety barriers (if installed), the Subcontractor shall take remedial action to meet the requirement of not exceeding loop resistance of 50 Ohms.

2. Each shield conductor shall be tested for continuity. Shield drain resistance shall not exceed the loop resistance of the pair or triad cable.

C. The Subcontractor shall submit to the Project Manager five (5) copies of test results, certified in writing, witnessed, signed and dated, immediately upon completion of work for review and acceptance by the University. An unsatisfactory condition revealed by these test results, or unsatisfactory methods of tests and/or testing apparatus and instruments, shall be brought to the attention of the Project Manager, Responsible Design Professional (RDP), and the Facilities Division Utilities Group Electrical Engineer and/or the AHJ designated representative. Corrections by the Subcontractor shall be validated by re-tests to the satisfaction of the Project Manager, the RDP, and the Facilities Division Utilities Group Electrical Engineer and/or the AHJ designated representative.

D. The Project Manager reserves the right to require that the Subcontractor perform and repeat tests that are deemed necessary to complete or check the tests or the certified records of the Subcontractor at any time during the course of the work. The Subcontractor shall correct unsatisfactory portion of his work that is revealed by the tests or that may be due to progressive deterioration during this period, unless the item in question was a direct specification.

3.6 ACCEPTANCE AND ENERGIZATION/ACTIVATION

A. Final acceptance shall depend upon the satisfactory test results as performed in accordance with the manufacturer’s instructions. After tests have been reviewed and approved by the University, energization/activation may proceed in accordance with the approved Equipment Energization Plan and the Energization Validation and Authorization Package (EVAP).

B. Upon energization/activation perform tests and record readings for the proper voltage, current or signal required. Provide the University with five (5) certified copies of field test reports.

END OF SECTION 260523

Page - RMW MASTER SECTION – Issued OCT 99 – AIA Masterspec 2-99

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