SECTION 26 0913.13

Electrical Power Monitoring andCONTROLS

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The following should be noted in using this specification:

  • To assist in product selection and further research, hypertext links to those organizations whose standards are referenced within the text are included.
  • To identify items that require action or input from the user brackets [] are used. The brackets house either optional text requiring a selection by the user or user input. For example: choosing a communication protocol applicable for a project such asBACNet Ethernet BACNet IPLonWorks.
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PART 1 - GENERAL

1.01SECTION INCLUDES

  1. Manufactured system network devices and accessories to control and monitor architectural lighting systems and plug load devices.

Additional subsections are provided in hidden text below. Specifier should select the appropriate sub-sections as appropriate for the project.

1.02RELATED REQUIREMENTS

  1. Section 12 25 00–Window Treatment Operating Hardware
  2. Section 25 00 00 – Integrated Automation
  3. Section 26 01 00 – Operation and Maintenance of Electrical Systems
  4. Section 26 05 00 – Common Work Results for Electrical
  1. Section 26 05 19 - Low-Voltage Electrical Power Conductors and Cables
  2. Section 26 05 23 - Control-Voltage Electrical Power Cables
  3. Section 26 05 33 - Raceway and Boxes for Electrical Systems
  4. Section 26 05 35 - Manufactured System Wiring Assemblies: Distribution of electrical power.
  5. Section 26 05 36 - Cable Trays for Electrical Systems
  6. Section 26 05 39 - Underfloor Raceways for Electrical Systems
  7. Section 26 05 43 - Underground Ducts and Raceways for Electrical Systems
  8. Section 26 05 46 - Utility Poles for Electrical Systems
  9. Section 26 06 00 – Schedules for Electrical
  1. Section 26 06 10 - Schedules for Medium-Voltage Electrical Distribution
  2. Section 26 06 20 - Schedules for Low-Voltage Electrical Distribution
  3. Section 26 06 20.13 - Electrical Switchboard Schedule
  4. Section 26 06 20.16 - Electrical Panelboard Schedule
  5. Section 26 06 20.19 - Electrical Motor-Control Center Schedule
  6. Section 26 06 20.23 - Electrical Circuit Schedule
  7. Section 26 06 20.26 - Wiring Device Schedule
  8. Section 26 06 30 - Schedules for Facility Electrical Power Generating and Storing Equipment
  9. Section 26 06 40 - Schedules for Electrical and Cathodic Protection Systems
  10. Section 26 06 50 - Schedules for Lighting
  11. Section 26 06 50.13 - Lighting Panelboard Schedule
  12. Section 26 06 50.16 - Lighting Fixture Schedule
  13. Section 26 08 00 – Commissioning of Electrical Systems
  14. Section 26 09 00 – Instrumentation and Control for Electrical Systems
  1. Section 26 09 23 - Lighting Control Devices
  2. Section 26 09 26 - Lighting Control Panelboards
  3. Section 26 09 33 - Central Dimming Controls
  4. Section 26 09 33.13 - Multichannel Remote-Controlled Dimmers
  5. Section 26 09 33.16 - Remote-Controlled Dimming Stations
  6. Section 26 09 36 Modular - Dimming Controls
  7. Section 26 09 36.13 - Manual Modular Dimming Controls
  8. Section 26 09 36.16 - Integrated Multipreset Modular Dimming Controls
  9. Section 26 09 43 - Network Lighting Controls
  10. Section 26 09 43.13 - Digital-Network Lighting Controls
  11. Section 26 09 43.16 - Addressable Fixture Lighting Control
  12. Section 26 27 00 – Low-Voltage Distribution Equipment
  13. Section 26 27 13 - Electricity Metering
  1. Section 26 27 16 - Electrical Cabinets and Enclosures
  2. Section 26 27 19 - Multi-Outlet Assemblies
  3. Section 26 27 23 - Indoor Service Poles
  4. Section 26 27 26 - Wiring Devices

1.03REFERENCES

NECA 1 describes industry best practices for good workmanship in electrical construction. NECA 1 is approved as an American National Standard (ANSI). For additional information, please see the NECA website:

  1. NECA 1 - Standard Practices for Good Workmanship in Electrical Contracting; National Electrical Contractors Association; 2000.
  2. NFPA 70 - National Electrical Code; National Fire Protection Association; 2005.

Wiremold assemblies can be used with a Walkerflex factory wired modular wiring system. For this the assemblies had to be evaluated which required testing under UL 183, Standard for Manufactured Wiring Systems. These requirements cover field-installed wiring assemblies using manufactured subassemblies for branch circuits and remote-control circuits.

  1. UL 183 - Standard for Manufactured Wiring Systems; 2003.

The Wiremold assemblies are listed to UL 244A, Standard for Solid-State Controls for Appliances. These requirements cover component electronic controls intended to be factory installed on or in appliances and other utilization equipment rated 600 V or less. This standard covers a single device or a series of separate components with interconnecting wiring employing one or more input power and possibly signal ports, solid-state circuitry, and one or more output switching components to directly control end-use product load.

  1. UL 244A– Standard for Solid-State Controls for Appliances; 2003.

The Energy Measuring Board is UL recognized to UL 916, Energy Management equipment. This standard covers energy management equipment and associated sensing devices rated 600 volts or less and intended for installation in accordance with the National Electrical Code. This evaluation determines the Energy Measuring Boards suitability for use as a sub-metering device in a listed control circuit.

  1. UL 916 – Energy Management Equipment; 2002.

Since Wiremold assemblies may be installed in air handling pathways, they are subject to the requirements of UL 2043, Standard for Fire Test for Heat and Visible Smoke Release for Discrete Products and Their Accessories Installed in Air-Handling Spaces. This is a fire test method for determining the fire performance response of discrete products intended to be installed in air handling spaces, such as above suspended ceilings or below floors. In this test, the units are subject to intense flame for several minutes and the heat intensity and the density of smoke are measured. Should the smoke density be too great or heat build-up be too high, the unit will fail.

  1. UL 2043 - Standard for Fire Test for Heat and Visible Smoke Release for Discrete Products and Their Accessories Installed in Air-Handling Spaces; 1996.

1.04SUBMITTALS

  1. Submit under provisions of Section 01 33 00
  2. Certificates: Certify that submitted equipmenteither meets specification as stated meets specification through an alternate means and indicate the specific methodology used.
  3. Meets specification as stated.
  4. Meets specification through an alternate means and indicate the specific methodology used.
  5. Product Data: Provide data on manufactured system network devices showing dimensions, colors, power requirements, and configurations.
  6. Shop Drawings: For power monitoring equipment, include:
  7. Schematic (one-line diagram) of system indicate planned locations and relationships of electrical components, network devices, and accessories in manufactured system.
  8. Sequence of Operation to describe how system operates and performs in the building.
  9. Manufacturer's Instructions: Indicate application conditions and limitations of use. Include instructions for storage, handling, protection, examination, preparation, and installation of product.

1.05QUALITY ASSURANCE

  1. Manufacturer Qualifications: Minimum five (5) years experience in the manufacturing of power management and control systems.
  2. Installer Qualifications: Company certified and approved by the power monitoring controls equipmentmanufacturer.

Retain as many of the bracketed reference standards in the first paragraph below as are applicable on a specific project and delete the ones that are not used.

  1. Electrical Components, Devices, and Accessories: Listed and labeled as defined in [NFPA 70][UL 183][UL 244A][UL 916][UL 2043] by a qualified testing agency and marked for intended location and application.

1.06WARRANTY

A.Provide manufacturer’s fulltwo (2)insert number year warranty covering 100 percentparts and 100 percentlabor from the date of system startup completion.

PART 2 - PRODUCTS

2.01MANUFACTURERS

  1. Acceptable Manufacturer: [Legrand® / Wiremold Inc. a Legrand Company][Convia®/A Herman Miller Company].

****OR****

  1. Basis of design, and with prior approval including the specified requirements of this section, one of the following:
  2. [Legrand® / Wiremold Inc. a Legrand Company.]
  3. [Convia®/AHerman Miller Company.]
  4. [Insert manufacturer’s name].
  5. Substitutions: [Not permitted.][Under provisions of Division 01.]

Delete items 1 through 3 if substitutions are not permitted.

  1. All proposed substitutions (clearly delineated as such) must be submitted in writing for approval by the design professional a minimum of 10 working days prior to the bid date and must be made available to all bidders. Proposed substitutes must be accompanied by a review of the specification noting compliance on a line-by-line basis.
  2. Any substitutions provided by the contractor shall be reviewed at the contractor’s expense by the electrical engineer at a rate of $150.00 per hour.
  3. By using pre-approved substitutions, the contractor accepts responsibility and associated costs for all required modifications to circuitry, devices, and wiring. The contractor shall provide complete engineered shop drawings (including power wiring) with deviations for the original design highlighted in an alternate color to the engineer for review and approval prior to rough-in.

2.02GENERAL

  1. Products included in this specification include all Modular Network Components. See Section[26 05 00][insert section number]for additional Power Delivery Components.

2.03ENERGY MANAGEMENT SYSTEM PERFORMANCE

For additional information on the features and benefits of intelligent lighting control, please see:

Lighting Control

  1. Integrated Lighting Control:

Use with switching (on / off) ballasts / systems. Retain options in the following subparagraph that are required for a project and delete the others.

  1. [Manual at wall station][Computer enabled software][Occupancy Sensor(s)][Vacancy Sensors] to implement On/Off control.

Use with dimming ballasts / systems. Retain options in the following subparagraph that are required for a project and delete the others.

  1. [Manual at wall station][Computer enabled software][Daylight Sensor(s)] to implement dimming control.

As lighting designs evolve to providing light at the task level and the increasing use of electronic power charging devices, the electric load consumed at the receptacle will further increase. Controlling both the plug loads and overhead lighting loads can provide the greatest benefits of peak load demand management and energy efficiency.

Plug Load Control

  1. Integrated Plug Load Control:
  1. [Manual at wall station][Computer enabled software][Occupancy Sensor(s)][Vacancy Sensor(s)] to implement On/Off control of designated wall outlets, workstation outlets, floor boxes, or Poke-thrus.

Occupancy / Vacancy sensors can provide a higher level of energy savings by enabling thermostat setback during normally occupied hours in the building. Communication with the Building Management System is possible with the ConviaNet® system and should be integrated with the HVAC system.

HVAC

  1. Integrated HVAC Control:
  1. Provide integration of occupancy / vacancy sensors with HVAC building automation control system to implement occupancy based thermostat setback.
  2. Provide direct temperature control of [serial][IP] digital thermostatsin accordance with requirements in Section 25 00 00 – Integrated Automation.
  3. Compatibility of occupancy sensors [and Convia-enabled Wiremold™] network with all HVAC / Building Management System [thermostats][temperature sensors] to be verified byall manufacturers prior to product purchase and installation.

To maximize the benefits of daylight control, the ConviaNET® system can work with leading manufacturers of automatic shading systems to minimize glare and solar heat gain in the conditioned space.

  1. Integrated Shade Control:
  1. Provide integration of lighting system with the [MechoShade][Somfy] automatic mechanical shading systems. See the requirements in Section 12 25 00.

As electric loads increase within the building, the Convia-enabled network redistributes the energy efficiency / demand response commands to ensure that the energy consumption does not exceed the engineered high limit.

Dynamic Load Balancing™

  1. Dynamic Load Balancing™:
  1. Provide the ability to specify a maximum energy consumption level for the building lighting system and maintain that level as the building occupancy and usage changes.
  2. Provide the ability to specify a maximum energy consumption level for the building plug load consumption and maintain that level as the building occupancy and usage changes.

The Convia-enabled network allows the building owner / facilities manager to establish which rooms / areas will be affected first, second, etc. to maintain a maximum energy usage. The building owner / facilities manager can define their own priority scale (i.e. 1 – 10, 1 – 100, or 1 – 200) For example, a critical area / room / circuit / device can opt out of the dynamic load balancing feature altogether.

  1. A participating critical room would have a priority ranking of 10.
  2. An “average room” would have a priority ranking of 5.
  3. The least critical area / room / circuit / device would have a priority of 1.
  1. Provide policy based prioritizationof electrical loads to establish energy and load shedding saving strategies.

Automatic demand response / load shedding occurs when a utility sends a signal to its customer / building owner, and the electric power consumption is automatically reduced to avoid blackouts and brownouts. Typically the utility will provide additional incentives to its customers who participate in the “Auto-DR” feature. Please check with your local utility for incentives and specific requirements.

Demand Response

  1. [Automatic Demand] Response / Load Shedding:
  1. Provide the ability to receive a proprietary signal from the local electric utility to reduce lighting energy (kW) consumption and provide verification back to the utility of electric (kW) reduction.
  2. Provide dynamic load balancing of lighting systems to maintain the required kW reduction during the demand response period.

Semi-Automatic demand response / load shedding occurs when a facility manager makes a decision to reduce the electric power consumption and enacts a command via the software. This is different from the automatic sequence in that the building owner makes the decision and manages how much and when.

  1. [Semi-Automatic] Demand Response / Load Shedding:
  1. Reduce lighting energy (kW) consumption and provide local verification of (kW) electric reduction.
  2. Provide start time and end time for electric demand response / load shed.
  3. Provide dynamic load balancing of lighting systems to maintain the required kW reduction during the demand response period.

Daylight harvesting can significantly reduce the need for electric lighting along the perimeter areas of a building and those interior spaces that utilize sky lights. The daylight sensors are programmed to dim / turn off the lighting in those areas where the natural light meet the required / desired light levels of the space.

  1. Daylight Harvesting:
  1. Provide automatic dimming zoned switching control to implement energy saving strategy through the use of daylight sensors.

The Convia-enabled system meters the electric consumption to give real-time energy usage at a granular level below the circuit panel level. Other devices can be added / expanded without impacting the ability to meter the energy consumption of the new or existing devices. The system measures energy usage every 60 seconds. Every 15 minutes the information is uploaded to the Energy Track™.

In order for other systems to provided circuit level metering, a supplemental system must be installed which adds additional costs to the project. Moreover, other control systems provide calculated estimates with a lesser degree of accuracy which can be +/-20%.

  1. Energy Sub Metering:
  1. Provide metered / apparent lighting and plug load actual energy consumption measured with an accuracy rate of 98 percentor greater for each lighting plug load zone.
  1. Multiple Site Management:
  1. Provide ability to manage, meter, and control multiple sites from a single location.

The ConviaNET system provides a custom report feature that documents the overall performance of the system. Please see the following web sites for energy reporting and the benefits of ongoing commissioning:

Energy Track™

Ongoing Commissioning

  1. [EnergyTrack™]System Performance and Energy Reporting:
  1. Provide dashboard display of the building floor plan with visual display to indicate conformance to established energy efficiency benchmarks and real time status / performance.
  2. Building occupancy status and trends and lighting and plug load control system performance accessible from the Internet.
  3. Provide report generating capabilities for lighting and plug loads for custom time periods with the ability to filter for work days and work hours.
  4. System historical performance database to be accessiblefor period of seven (7) years.
  5. Provide ability to integrate [Heating][Ventilating][Air Conditioning][energy][Water] consumption into the [reporting][visual dashboard display].
  6. Provide visual dashboard to display [carbon][kWh][barrels of oil][gallons of gas][custom] equivalent energy savings saved by the control strategies implemented from the system.

After personnel, real estate is the single largest expense for most businesses. As space occupancy costs continue to increase, facility managers seek methods to lower these expenses through improved workplace productivity and overall real estate reductions.

By understanding how rooms in a building are being used, hour after hour, day after day, and month after month, usage patterns emerge.

Convia’s Energy Track reporting tool records electrical use and occupancy of any space in the system. This data tells managers how the space is being used and for what duration. Moreover, these details can be stored and called up later to compare with future space utilization reports.

Based on space utilization trends over time, facility managers gain insight into what are the most productive areas in a building. More importantly, they are given insight into which areas are low-producing spaces in terms of real estate value.

For more information, please see the following web site:

Space Utilization

  1. Occupancy and Space Utilization:
  1. Provide dashboard display of the historical building occupancy patterns for period of seven (7) years.

For additional product and system information, please see the following document:

Convia® Enabled Walkerflex® Modular Wiring System

For additional technical resource information, please see the following web site: