Download section 220519 - meters and gauges for plumbing

This master should be used by designers working on Port of Portland construction projects and by designers working for PDX
tenants (“Tenants”). Usage notes highlight a few specific editing choices, however the entire section should be evaluated and
edited to fit specific project needs.
SECTION 337173 - ELECTRIC UTILITY METERS
PART 1 - GENERAL
1.1
DESCRIPTION
A.
1.2
This section describes electric meters used for electric utility cost allocation.
RELATED WORK SPECIFIED ELSEWHERE
A.
Section 260913, Power Monitoring, Analysis and Control (PMAC) System
B.
Section 331233, Water Utility Meters
C.
Section 335133, Natural Gas Utility Meters
1.3
REFERENCES
A.
ANSI/IEEE: American National Standards Institute/Institute of Electrical and Electronics
Engineers
1.
ANSI C12.1: Electricity Meters
2.
ANSI C12.20: Electricity Meters 0.2 and 0.5 Accuracy Class
B.
FCC: Federal Communications Commission
1.
FCC Part 15: Radio Frequency Devices
C.
NEC: National Electrical Code
D.
UL: Underwriters Laboratories
1.
UL 61010-1: Electrical Equipment For Measurement, Control, and Laboratory Use
1.4
SUBMITTALS
A.
Submit technical data sheets, installation manuals, and/or user documentation manuals that
describe product installation, operation and maintenance, physical data, electrical
characteristics, and connection requirements.
B.
Submit shop drawings depicting the meter installation. Shop drawings shall:
1.
Be new, and prepared utilizing AutoCAD and backgrounds of the Port-provided
reference drawings.
2.
Include, but not be limited to, the following:
a.
Complete floor plans with all meter locations, conduit routing and wiring.
b.
Installation and mounting details drawn to scale.
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c.
Power, signal and communication connection schematic diagrams.
C.
Submit data regarding meter voltage and current range.
D.
Submit data regarding meter communication protocol and data tables for remote read by the
Port’s meter data collection system.
E.
Submit manufacturer’s engineering data that describes the pulse output value in kWh/pulse.
F.
Submit hard and soft copies of all configuration programming for reload in the event of an
equipment or memory failure.
PART 2 - PRODUCTS
2.1
SINGLE CIRCUIT, ENCLOSED ELECTRIC METERS
Paragraph A is for Tenant use only. For Port project, delete, “No substitutions,” and replace with, “or pre-bid approved equal.”
A.
Acceptable Manufacturer and Model: Veris Model H8163, no substitutions.
B.
Applications: Provide enclosed electric meters at panelboards feeding tenant spaces.
C.
Description: Enclosed meter with LCD display and three factory matched and calibrated splitcore current transformers (CTs) and potential leads. Meter housing shall be NEMA 1.
D.
Accuracy: Total system end-to-end accuracy shall be a maximum +/- 1% from 2% to 100% of
the rated current over a temperature range of 0 – 50 ºC.
E.
Voltage and Amperage Range: Select meter to match the voltage and amperage rating of the
circuit being metered.
F.
CT Size: Select CTs (Micro, Mini, Small, Medium, or Large) to match the size of conductors
being metered.
G.
Hardwired Output: Provide a normally-open pulse output with selectable pulse output rates.
H.
Communication Board: Provide a Veris Model H8163-CB Modbus RTU communication board
for RS-485 connection to the Port’s meter data collection system.
2.2
SINGLE CIRCUIT, SOCKET ELECTRIC METERS
Paragraph A is for Tenant use only. For Port project, delete, “No substitutions,” and replace with, “or pre-bid approved equal.”
A.
Acceptable Manufacturer and Model: Schneider Electric Model E5600. No substitutions.
B.
Application: Provide socket meters at bus duct taps and replace existing socket meters.
C.
Description: Class 200 Socket meter with LCD display and Modbus RS-485 communication
network. Meter housing shall be NEMA 1.
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D.
Accuracy: Total system accuracy shall be a maximum +/- .2% in conformance to ANSI C12.202010 Class .2.
E.
Voltage and Amperage Range: Select meter to match the voltage and amperage rating of the
circuit being metered.
F.
Socket Base: Provide Form 16S socket base for 3 phase, 4 wire, wye or delta circuit power
monitoring, or as required by the application.
G.
Inputs/Outputs: Provide two pulse counter inputs, external excitation, and guaranteed ON range
9-24 VDC or VAC. Provide two form A outputs, external excitation, load voltage range 12-24
VDC or VAC, and maximum load current 60 mA.
H.
Communication: Provide Modbus RTU RS-485 communication for all meter data including
kW, kWh, kVAR, kVA, volts each phase, current each phase, average voltage, average current,
etc.
PART 3 - EXECUTION
3.1
INSTALLATION
A.
Install all devices as required by code and the Authority Having Jurisdiction, and as
recommended by the equipment manufacturer.
B.
Location: Install electric meters in secure, accessible locations and where shown on the
drawings. Meter display shall be easily read from the floor with the top of the meter no higher
than 72 inches above finished floor. Coordinate mounting elevation and other details with the
Port.
3.2
STARTUP AND TESTING
A.
Follow all manufacturer’s recommendations for startup and testing.
B.
Configure the pulse output rate to operate at less than 5 Hz, based on peak demand, typically set
at 1 kWh/Pulse.
C.
Enclosed Electric Meters:
1.
Verify that the serial numbers on the meter match the numbers on the CTs.
2.
Set jumpers to allow LCD display backlighting and to provide “Plain” data display.
D.
Socket Electric Meters: Configure the meter parameters such as Modbus ID and Baud Rate
using the meter manufacturer’s tool and software.
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E.
After installation is complete, verify that the meter’s displayed kW matches the load as
measured by a true-RMS clamp-on meter such as the Fluke Model 345 or 43B, or equal. Secure
the meter cover by inserting a wire-tie through the security hasp.
END OF SECTION 337173
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