Specification_(Atch_2_-_12_Pages).pdf

DKGV 11-2192 Design Upgrade Primary Electrical Service, Northside

Section 26 27 13.10 30 Page 1

SECTION 26 27 13.10 30

ELECTRIC METERS

10/07

PART 1 GENERAL

Section 26 08 00 APPARATUS INSPECTION AND TESTING applies to this section, with the additions and modifications specified herein.

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)

IEEE 100 (2000; Archived) The Authoritative Dictionary of IEEE Standards Terms

IEEE C2 (2012; Errata 2012; INT 1-4 2012; INT 5-7

2013) National Electrical Safety Code

IEEE C37.90.1 (2012) Standard for Surge Withstand

Capability (SWC) Tests for Relays and Relay

Systems Associated with Electric Power

Apparatus

IEEE C57.13 (2008; INT 2009) Standard Requirements for

Instrument Transformers

INTERNATIONAL ELECTROTECHNICAL COMMISSION (IEC)

IEC 61000-4-5 (2005; ED 2.0; CORR 2009) Electromagnetic

Compatibility (EMC) - Part 4-5: Testing and

Measurement Techniques - Surge Immunity Test

IEC 62053-22 (2003; ED 1.0) Electricity Metering Equipment

(a.c.) - Particular Requirements - Part 22:

Static Meters for Active Energy (Classes 0,2

S and 0,5 S)

NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA)

ANSI C12.18 (2006) Protocol Specification for ANSI Type 2

Optical Port

ANSI C12.20 (2010) Electricity Meters - 0.2 and 0.5

Accuracy Classes

ANSI C62.61 (1993) American National Standard for Gas

Tube Surge Arresters on Wire Line Telephone

Circuits

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

FA4418-15-R-0011

Atchnt 2-12 pages Addendum 1- Dated 28Jul15

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Section 26 27 13.10 30 Page 2

NFPA 70 (2014; AMD 1 2013; Errata 1 2013; AMD 2 2013;

Errata 2 2013) National Electrical Code

1.2 DEFINITIONS

Unless otherwise specified or indicated, electrical and electronics terms used in this specification and on the drawings shall be as defined in IEEE

100.

1.3 SUBMITTALS

Submit the following in accordance with Section 01 33 00 SUBMITTAL

PROCEDURES:

a. Maintenance manual shall provide:

1. Condensed description of how the equipment operates.

2. Block diagram indicating major assemblies.

3. Troubleshooting information

4. Preventive maintenance.

5. Spare parts information.

b. Provide operation and maintenance manuals required by submittal item "SD-

10 Operation and Maintenance Data."

SD-02 Shop Drawings

SD-03 Product Data

Power meters; G

Current transformers; G

Potential transformer; G

Communications module; G

Protocol modules; G

Data recorder; G

Submittals shall include manufacturer's information for each component, device, and accessory provided with the meter, protocol module or communications module.

SD-06 Test Reports

Acceptance checks and tests; G

SD-10 Operation and Maintenance Data

Power meters; G

Communications module; G

Protocol modules; G

Data recorder; G

SD-11 Closeout Submittals

System function verification; G

1.4 QUALITY ASSURANCE

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Section 26 27 13.10 30 Page 3

1.4.1 Installation Drawings

Drawings shall indicate but not be limited to the following:

a. Elementary diagrams and wiring diagrams with terminals identified of meter, current transformers, communications modules,.

b. One-line diagram, including meters.

1.4.2 Standard Products

Provide materials and equipment that are products of manufacturers regularly engaged in the production of such products which are of equal material, design and workmanship. Products shall have been in satisfactory commercial or industrial use for 2 years prior to bid opening. The 2-year period shall include applications of equipment and materials under similar circumstances and of similar size. The product shall have been on sale on the commercial market through advertisements, manufacturers' catalogs, or brochures during the 2-year period. Where two or more items of the same class of equipment are required, these items shall be products of a single manufacturer;

however, the component parts of the item need not be the products of the same manufacturer unless stated in this section.

1.4.3 Alternative Qualifications

Products having less than a 2-year field service record will be acceptable if a certified record of satisfactory field operation for not less than 6000 hours, exclusive of the manufacturers' factory or laboratory tests, is furnished.

1.4.4 Material and Equipment Manufacturing Data

Products manufactured more than 2 years prior to date of delivery to site shall not be used, unless specified otherwise.

1.5 WARRANTY

The equipment items shall be supported by service organizations which are reasonably convenient to the equipment installation in order to render satisfactory service to the equipment on a regular and emergency basis during the warranty period of the contract.

1.6 SYSTEM DESCRIPTION

1.6.1 System Requirements

The metering and reading system, consisting of commercial, off-the-shelf meters, protocol modules, communications modules, and communication channels, will be used to record the electricity consumption and other values as described in the sections that follow and as shown on the drawings.

1.6.2 Selection Criteria

Metering components are part of a system that includes the physical meter, data recorder function and communications method. Every building site identified shall include sufficient metering components to measure the

Section 26 27 13.10 30 Page 4 electrical parameters identified and to store and communicate the values as required in the following sections. Contractor shall verify that the metering system installed on any building site is compatible with the facility-wide communication and meter-reading protocol system.

PART 2 PRODUCTS

2.1 POWER METERS

2.1.1 Physical and Common Requirements

a. Metering system components shall be installed according to the Metering

System Schedule shown on the drawings.

b. Power meter shall be socket-mount design.

c. Use Class 200 meters for direct current reading without current transformers.

d. Meter shall be a Class 20, transformer rated design.

e. Meter shall be rated for use at temperature from -40 degrees Centigrade to +70 degrees Centigrade.

f. Meter shall have NEMA 3R enclosure for surface mounting.

g. Surge withstand shall conform to IEEE C37.90.1.

h. Meter shall have a standard 4 -year warranty.

i. Meter shall comply with IEC 62053-22 (Part 21: Static Meter for Active

Energy, classes 0.2S and 0.5S), certified by a qualified third party test laboratory.

2.1.2 Voltage Requirements

a. Meter shall be capable of connection to the service voltage phases and magnitude being monitored. If the meter is not rated for the service voltage, provide suitable potential transformers to send an acceptable voltage to the meter.

b. Meter shall be capable of connection to the service voltage indicated in the Metering System Schedule:

c. Meter shall accept independent voltage inputs from each phase. Meter shall be auto-ranging over the full range of input voltages.

d. Voltage input shall be optically isolated to 2500 volts DC from signal and communications outputs. Components shall meet or exceed IEEE

C37.90.1 (Surge Withstand Capability).

e. The Contractor shall be responsible for determining the actual voltage ratio of each potential transformer. Transformer shall conform to IEEE

C57.13 and the following requirements.

1. Type: Dry type, of two-winding construction.

Section 26 27 13.10 30 Page 5

2. Weather: Outdoor or Indoor rated for the application.

3. Frequency: Nominal 60Hz, 50Hz for those bases that operate on

50Hz.

4. Accuracy: Plus or minus 0.3% at 60Hz or 0.3% for those systems that operate at 50Hz.

2.1.3 Current Requirements

a. Meter shall accept independent current inputs from each phase. Current transformer shall be installed with a full load rating as shown in the schedule.

b. Single ratio current transformer shall have an Accuracy Class of 0.6 with a maximum error of +/- 0.6% at 5.0 amps.

c. Current transformer shall have:

1. Insulation Class: All 600 volt and below current transformers shall be rated 10 KV BIL. .

2. Frequency: Nominal 60Hz, 50Hz for bases that operate on 50Hz.

3. Burden: Burden class shall be selected for the load.

4. Phase Angle Range: 0 to 60 degrees.

d. Meter shall accept current input from standard instrument transformers

(5A secondary current transformers.)

e. Current inputs shall have a continuous rating in accordance with IEEE

C57.13.

f. Multi-ratio current transformer where indicated shall have a top range equal to or greater than the actual load. The Contractor shall be responsible for determining the actual ratio of each transformer.

Current transformer shall conform to IEEE C57.13.

2.1.4 Electrical Measurements

Power meter shall measure and report the following quantities:

a. Kilowatt-hours ("kWh" in Metering Systems Schedule) of consumption.

Cumulative.

b. Kilowatts of demand ("kW" in Metering Systems Schedule). Peak average over a selectable demand interval between 5 and 60 minutes (typically

15 minutes).

c. Reactive power ("kVAR" in Metering Systems Schedule). Measured over the same interval as the peak kW reading.

d. Power factor ("PF" in Metering Systems Schedule). Measured over the same interval as the peak kW reading.

Section 26 27 13.10 30 Page 6

f. Interval recording ("IR" in Metering Systems Schedule). Kilowatt-hours shall be recorded for each 15 minute interval and shall accumulate for

30 days. Memory for recording the interval readings shall be internal to the meter and ANSI C12.19 compliant. Meter shall provide time-stamped readings for every measured parameter.

g. Meter readings shall be true RMS.

2.1.5 Meter Accuracy

Power meter shall provide the following accuracies. Accuracies shall be measured as percent of reading at standard meter test points.

a. Power meter shall meet ANSI C12.20 for Class 0.2 and IEC 62053-22 accuracy requirements.

2.1.6 An on the Meter Display, Output and Reading Capabilities

Meter shall include the following output signals.

a. The meter will have a face display plate and shall display every electrical parameter indicated to be recorded. Meters shall not be required to indicate interval data collected in a data logger with a communications output feature. Peak values, instantaneous and cumulative values shall be displayed.

b. Meter shall include optical output port capable of 9600 bps communication with a hand-held reading device. Optical device shall be compatible with ANSI C12.18

c. Meter shall include output options for analog milliamp signals.

d. Meter shall have two channels of analog output, 0-1mA or 4-20mA, for positive and negative watt/hour readings.

e. Meter shall include output option for pulse output. KYZ pulse output related to kWatts/HR.

f. Meter shall have two form C, dry contact relay outputs for alarm or control.

2.1.7 Installation Methods

a. Transformer mounted

1. Meter base shall be located outside on the secondary side of the pad-mounted transformer.

b. Building mounted )

1. Meter base shall be mounted on the side of the existing building near the service entrance. See detail on the drawings.

c. Common features.

1. PTs (if required for proper voltage range) and CTs shall be physically connected to the service entrance cables inside the service entrance disconnect enclosure.

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2.1.8 Disconnecting Switches

a. Disconnecting wiring blocks shall be provided between the current transformer and the meter. A shorting mechanism shall be built into the wiring block to allow the current transformer wiring to be changed without removing power to the transformer. The wiring blocks shall be located where they are accessible without the necessity of disconnecting power to the transformer. For multi-ratio current transformers, provide a shorting block from each tap to the common lead.

2.1.9 Meter Programming

a. Power meter shall be programmable by software supplied by the meter manufacturer.

b. Software shall have a user-friendly, Windows-compatible interface.

c. Software shall operate on Windows operating systems.

d. Software shall allow the user to configure the meter, troubleshoot meter, query and display meter parameters and configuration data and stored values.

e. Meter firmware shall be upgradeable through one of the communications ports without removing the unit from service.

2.2 COMMUNICATIONS

2.2.1 Communications Methods

2.2.1.1 Optical Port

The optical port shall communicate with a hand-held reading device according to the following requirements.

a. Communications standards

1. ANSI C12.18

2. MV90 protocol

3. ANSI C12.20

b. Read operations

1. Current kWh values

2. Demand (kW) values since last reset

3. Last reset value

4. Meter status

c. Write operations

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1. Meter setup

2.2.1.2 Serial Port

Provide serial port for connection to modem module where required in this specification.

a. On-Board serial port types

1. RS232

2. RS485

2.2.1.3 Ethernet

For those meters using the Ethernet, logged information shall be sent using open standard Internet Protocols.

a. On-board Ethernet port support

1. HTTP

2. SMTP

(a) Modbus

b. Distribute stored data by

1. FTP

2.2.2 Communications Protocols and Methods

Communications protocols and methods shall be native to the meter. Provide communications module(s) as required to accomplish the following.

a. Meter shall include an IR port ("IR" in Metering Systems Schedule) for communication to external devices such as handheld readers that support a minimum speed of 9600 baud.

b. Meter shall include one digital communication port. Each port shall be user configurable with regard to speed, protocol, address, and other communications parameters. Ports shall support a minimum communication speed of 9600 baud for the RS232 port.

c. Meter shall have a port that can be configured as a 10/100 Base-T

Ethernet port ("BaseT" in Metering Systems Schedule)

1. A communication module that converts serial RS232 or RS485 to

Ethernet will be acceptable.

d. Auto Answer minimum 1200 baud internal modem ("A56K" in Metering Systems

Schedule). Internal modem shall include automatic data buffering to provide faster, more reliable communications and the ability to automatically answer on a connected line.

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e. Meter shall be equipped with one pulse output channel ("Pulse" in

Metering Systems Schedule) that can be configured for operation as KYZ pulse output.

2.2.3 Communications Channels Surge Protection

Communications equipment shall be protected against surges induced on its communications channels. Communication interfaces to all field equipment shall be protected to meet the requirements of IEEE C37.90.1 or the requirements of IEC 61000-4-5, test level 4, while the equipment is operating. Fuses shall not be used for surge protection. Metallic cables and conductors which serve as communications channels between buildings shall have surge protection installed at equipment rated for the application installed at each end, within 3 feet of the building cable entrance. Surge protectors shall meet the requirements of the applicable extension of ANSI

C62 (for example, ANSI C62.61).

2.3 METER DATA PROTOCOL

Power meters shall have communicating data protocols native or provided in supplemental modules to communicate with the communications methods that follow.

2.3.1 Open Protocol

Power meter shall support the following open protocols. Contractor shall verify that the meter native protocol is consistent with the facility data recording and communication and data storage system. Contractor shall provide additional converters and modules as required for a complete measurement, recording, communicating and data storage system.

a. Meter shall be fully supported by MV-90 software system or existing AMR software that is MV-90 compatible.

b. For systems that use proprietary software, an alternative, competitive software system must be available.

Systems capable of using more than one brand of commercially available meters are expected. In addition, if proprietary meter reading software is used, meters are to be capable of being read by more than one manufacturer's software.

PART 3 EXECUTION

3.1 INSTALLATION

Electrical installations shall conform to IEEE C2, NFPA 70, and to the requirements specified herein. Provide new equipment and materials unless indicated or specified otherwise.

3.2 FIELD APPLIED PAINTING

Where field painting of enclosures is required to correct damage to the manufacturer's factory-applied coatings, provide manufacturer's recommended coatings and apply in accordance with manufacturer's instructions.

Section 26 27 13.10 30 Page 10

3.3 FIELD QUALITY CONTROL

3.3.1 Performance of Acceptance Checks and Tests

3.3.1.1 Meter Assembly

a. Visual and mechanical inspection

1. Compare equipment nameplate data with specification and approved shop drawings.

2. Inspect physical and mechanical condition.

3. Inspect all bolted electrical connections for high resistance using low-resistance ohmmeter, verifying tightness of accessible bolted electrical connections by calibrated torque-wrench method.

4. Verify grounding of metering enclosure.

5. Verify the presence of surge arresters.

6. Verify that the CT ratio and the PT ratio are properly included in the meter multiplier or the programming of the meter.

b. Electrical tests

1. Calibrate watthour meters according to manufacturer's published data.

2. Verify that correct multiplier has been placed on face or meter where applicable.

3. Prior to system acceptance, the Contractor will demonstrate and confirm the meter is properly wired and is displaying correct and accurate electrical information.

3.3.1.2 Current Transformers

1. Compare equipment nameplate data with specification and approved shop drawings.

2. Inspect physical and mechanical condition.

3. Verify correct connection.

4. Inspect all bolted electrical connections for high resistance using low-resistance ohmmeter, verifying tightness of accessible bolted electrical connections by calibrated torque-wrench method.

5. Verify that required grounding and shorting connections provide good contact.

Section 26 27 13.10 30 Page 11

1. Perform resistance measurements through all bolted connections with low-resistance ohmmeter, if applicable.

2. Perform insulation-resistance test.

3. Perform a polarity test.

4. Perform a ratio-verification test.

3.3.1.3 Potential Transformers

1. PT's are rigidly mounted.

2. PT's are correct voltage.

3. Verify that adequate clearances exist between primary and secondary circuit.

1. Perform a ratio-verification test.

3.3.2 Follow-Up System Function Verification

Upon completion of acceptance checks and tests, the Contractor shall show by demonstration in service that circuits and devices are in good operating condition and properly performing the intended function. As an exception to requirements stated elsewhere in the contract, the Contracting Officer shall be given 5 working days' advance notice of the dates and times of checking and testing.

3.3.3 Training

The Contractor shall conduct a training course for meter configuration, operation, and maintenance of the system as specified. The training shall be oriented for all components and systems installed under this contract.

Training manuals shall be delivered for trainees with two additional copies delivered for archiving at the project site. The Contractor shall furnish all audiovisual equipment and all other training materials and supplies. A training day is defined as eight hours of classroom instruction, including two 15-minute breaks and excluding lunchtime, Monday through Friday, during the daytime shift in effect at the training facility. For guidance in planning the required instruction, the Contractor shall assume that attendees have a high school education or equivalent, and are familiar with utility systems. Approval of the planned training schedule shall be obtained from the Government at least 30 days prior to the training.

a. Training: The course shall be taught at the project site within thirty days after completion of the installation for a period of one day(s).

A maximum of 6 personnel will attend the course. The training shall include:

1. Physical layout of each piece of hardware.

2. Meter configuration, troubleshooting and diagnostics procedures.

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3. Repair instructions.

4. Preventive maintenance procedures and schedules.

5. Testing and calibration procedures.

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