test shall include mechanical balancing of rotating parts.
2.12
INSTRUMENTATION AND CONTROLS
Furnish a control system to provide safe, reliable, and efficient operation
of the Flue Gas Cleaning System through integrated control of system
processes and equipment. The control system shall perform safe boiler
start-up and shutdown and shall respond to dynamic variations in boiler
operating conditions including steam sootblowing while maintaining required
emission levels. The control system shall include a vertical control and
graphic system panelboard located in the Steam Plant control room and
system cabinets located in the control equipment room. The Control system
shall integrate local controls provided with the lime slurry preparation
equipment, and other equipment, as specified, so that complete system
operation can be remotely monitored and controlled from the Steam Plant
control room. The Contractor shall provide instrumentation and control
equipment, as specified and as required for a complete and operational
system. Furnish instrumentation required to monitor the process variables.
Furnish flow, pressure, and temperature instrumentation for each pump, to
monitor operating conditions and indicated performance. Furnish flow,
level, pressure, and temperature switches for alarm actuation in process
lines, tanks, vessels, and heat exchangers. Furnish transmitters required
to transmit the process variable to the control systems. Furnish
instrumentation required to transmit the status of the process and
equipment to control room panels. Furnish analyzers and sensors required
to monitor and to control process reagents, flue gas influent and effluent,
and waste products. Furnish supports, hardware, enclosures, and
accessories required to mount, protect, and operate the instrumentation.
Furnish instruments, meters, gages, switches, controllers, thermometers,
thermocouples, transmitters, analyzers, panels, and gage boards as
required. Furnish metal instrument identification tags on field devices.
Furnish tubing, piping, and fittings required for a complete
instrumentation and control system. Furnish electronic control systems to
control and monitor continuous time-varying processes using either split
architecture analog controllers or direct-digital control techniques to
emulate analog controllers. Furnish electronic digital control systems to
control and monitor sequential processes. Provide necessary control
program software and hardware. Furnish control drives and control valve
operators required for control of the FGD system including induced draft
fan inlet damper control drives. Furnish control boards for at least the
following areas or functions: FGD system control panelboard in Steam Plant
control room, lime slurry preparation equipment, lime unloading, and at
each spray dryer penthouse. Control panels in each area shall include the
necessary control devices and instruments required to operate and monitor
the equipment specified for control from that panel. Equipment which is
specified to have both local control and control from the main system
panelboard in the control room shall be provided with control mode selector
switches at the main panelboard. Panelboards shall conform to UL 67.
Analog loops shall be controlled from the main system panelboard only. Tag
each field-mounted device and panel-mounted device using the following tag
numbering scheme. Instruments shall be tagged according to contract number
and type of device using standard device abbreviations. Tag numbers shall
be prefixed with the number [_____] to signify this contract. Instruments
furnished in multiples for multiple equipment shall have identical tag
numbers suffixed by the letters A, B, C, etc., to correspond to the
multiple equipment. Tag each device prior to shipment. Device tags shall
be permanently attached (not with string or tape) to the stem or case of
each device. Tags shall be fabricated of solid brass or aluminum with
correct tag number stamped clearly on into the metal. Each tag shall be
SECTION 15864N
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