|
COMMERCE BUSINESS DAILY ISSUE OF MAY 23,2000 PSA#2606Bureau of Reclamation, Snake River Area Office, 214 Broadway Avenue,
Boise, ID 83702 36 -- CRANE CONTROL REPLACEMENT EQUIPMENT SOL 00SQ110007 DUE 062300
POC Bruce Mccarthy, 208-365-2600 Ex.15, Marie Day, Purchasing Agent
208-334-1744 E-MAIL: MDAY@PN.USBR.GOV, MDAY@PN.USBR.GOV. This is a
combined synopsis/solicitation for a commercial item requirement in
accordance with the format FAR Subpart12.6 as supplemented with
additional information included in this notice. This announcement
constitutes Solicitation 00SQ110007 issued as an RFQ and incorporates
provisions and clauses in effect through FAC 97-16. NAICS code is
335314, and the size standard is 750 employees. Anderson Ranch
Powerplant Bridge Crane Control Upgrade a. General -- The contractor
shall supply all equipment necessary to upgrade the control equipment
for the existing 60 ton overhead bridge crane at the Anderson Ranch
Powerplant. Cable between cabinets will be supplied by the government,
except where specified below. The contractor is responsible for
providing all other electrical equipment necessary to make the crane
operational. If the contractor supplied equipment requires additional
components from what is described in these specifications, the
contractor shall provide them as part of the bid price for the
contract. (1) Reclamation will have the existing wound rotor motors
converted to squirrel cage type motors. Any special requirements needed
to make the motors compatible with the contractor provided equipment
shall be submitted within one week after notice to proceed. The
contractor is not responsible for any modifications to the motors. (2)
Reclamation personnel will install the equipment provided using
detailed instructions supplied by the contractor. These instructions
shall include a written description and appropriate electrical and
mechanical drawings of the installation procedure, including all common
problems with an installation of this type. (3) Upon completion of the
installation Reclamation will contact the Contractor to schedule a
contractor supplied onsite technician who specializes in all types of
equipment being supplied. This technician will train government
personnel in maintenance and configuration of the systems provided and
assist in a final configuration and testing of the equipment. It is
expected that the technician will be required onsite for five
eight-hour days. If the contractor expects this work to take more time
than the forty hours indicated, he will submit a schedule of
activities with time required to complete each activity. If additional
time is required to complete these activities the cost will be
included in the bid for the project at a daily rate as specified in the
bid schedule. b. Submittals. -- Unless otherwise specified, the
Contractor shall submit the following drawings and data complete in
accordance with these specifications within 30 days after notice to
proceed. The government shall approve or disapprove the submittals
within 30 calendar days. Submittals that are not approved or that
require changes or revisions shall be revised and resubmitted for
approval, and shall show changes and revisions with revision date. All
requirements specified for the initial submittal shall apply to any
resubmittals required. Unless otherwise specified, all submittals which
are to be resubmitted shall be resubmitted by the Contractor within 30
calendar days after the Contractor has received the Government's
comments. (1) Approval drawings and data (a) Commercial products data.
(b) Electrical control schematic and operation description. (c)
Installation instructions as specified in paragraph a(1). (d) Special
motor modification instructions as specified in paragraph a(1) if
required. (e) Estimated time required and schedule of activities for
onsite technician if time is other that specified in paragraph a(3).
(g) Complete data including manufacturer, type, size, and rating for
the following: (aa) Adjustable frequency crane controls.(bb)
Disconnecting device. (cc) Festooned conductors and support equipment.
(dd) Radio control equipment (2) Final data. -- (a) Service manuals
for commercial products. Data not applicable to equipment furnished
shall be marked out. Service manuals shall also contain: (aa) General
arrangement drawings including all drawings, electrical control
schematics and wiring diagrams updated for the as-installed condition.
(bb) operation instructions, maintenance requirements and intervals,
and a list of spare parts. c. Existing Crane Specifications. All
existing equipment is supplied power from a 100 amp breaker off the 480
VAC station service system. Crane lighting is supplied from this source
through a 2 KVA 480 to 120 lighting transformer. (1) Main Hoist -- The
main hoist has a travel of 35 ft and operates at speeds of up to 5 ft
per minute. This 60-ton rated hoist is equipped with an electrical
brake system utilizing 480v power and is driven by a 25-hp motor with
a nameplate as follows. Westinghouse Type -- CI Sleeve Bearing Motor,
Frame #405, 25HP 878 RPM, 220/440 volt 55 amps -- Measured maximum
no-load current 3 phase 60 HZ Style No. 1-N-5242 (2) Auxiliary Hoist --
The auxiliary hoist has a travel of 44 ft and operates at speeds of up
to 31.5 ft per minute. This 10-ton hoist is equipped with an
electrical brake system utilizing 480v power and is driven by a motor
with the same nameplate as the Main Hoist. (3) Crane Trolley -- The
trolley can travel at speeds of up to 29.2 ft per minute and is driven
by a 5-hp motor with a nameplate as follows. The crane trolley has an
electrical brake system utilizing 480v power. Westinghouse Type -- CI
Ball Bearing Motor Frame #324 5HP 850 RPM, 220/440 volt, 9 amps --
Measured maximum no-load current, 3 phase 60 HZ, The Span of the Bridge
is 50'-0 (4) Crane Bridge -- The bridge can travel at speeds of up to
70.5 ft per minute and is driven by a 25-hp motor with a nameplate as
follows. Westinghouse Type -- CI Sleeve Bearing Motor, Frame #405,
25HP, 860 RPM, 220/440 volt, 47 amps -- Measured maximum no-load
current, 3 phase, 60 HZ, Style No. 1082 735. The existing bridge brake
is hydraulic and is operated by a pedal in the cab. A new electrical
brake shall be provided to replace the old system. The dimensions of
the Bridge Brake Assembly are shown on Drawing 1. (5) Cab controls --
The existing cab controls are Westinghouse AC powered Type A Drum
Controllers. d. Minimum Equipment Supplied (1) Panel or panels with all
motor control brake control and adjustable frequency drive controllers
to be mounted in the crane cab shall be provided. These panels should
include all components necessary to drive the existing motors
including resistors and other power filtering equipment. Cab dimensions
are provided in Drawing 2. Wireways can be utilized, as long as the
access opening area and an operating area are maintained. (2) A control
box or boxes to replace cab drum controllers shall be provided.
Controls shall be as specified in paragraph e(1). Cab dimensions are
provided in Drawing 2. Wireways can be utilized, as long as the access
opening area and an operating area are maintained. (3) Electric brake
assembly to replace hydraulic bridge brakes shall be provided. See
Drawing 1 for dimensions of the existing brake drum and mounting area.
(4) Radio control, shoulder hung, operating console with all equipment
required to operate the crane. This shall include any peripheral
equipment such as battery chargers and wall hangers. Radio controls
shall be as specified in subparagraph e(1)(d). (5) Equipment required
to upgrade the existing mainline runway collector assembly shall be
provided as required. Equipment provided shall be compatible with the
existing collector rails. For details on the existing equipment see
Drawing 1. Mainline runway collector assembly shall be as specified in
subparagraph e.(2). (6) Festooned conductors with supports for
suppling power and controlling motors and brakes on the moving trolley
shall be provided. This conductor must have sufficient length to cover
full travel of the trolley. A termination box with terminal blocks
shall be provided for each end of the Festooned conductors. Loops in
the cable shall not hang down more than 1.5 feet from support cable.
(7) Six full sets of maintenance and operations manuals including
written description and appropriate electrical and mechanical drawings
shall be provided. Written installation procedure, including all
common problems with an installation of this type shall also be
provided. e. Electrical equipment. -- All electrical equipment shall be
designed for operation within its rated temperature limits in an
ambient temperature of 40 C. (1) Controls (a) General. -- Controls for
the crane motions shall be an adjustable frequency speed control for
a squirrel cage motor with speed control ranges as indicated in
subparagraph c. Existing Crane Specifications. Simultaneous operation
of the main hoist, trolley, and bridge drives is required. The controls
for the crane shall have overload protection for each motor and
undervoltage protection for motors over 20 horsepower. Control circuit
voltage shall be 120 volts. The loss of control voltage shall cause
the brakes to set. Master control equipment, whereby the operator may
control the functions of the crane, located in the operator's cab shall
be arranged to give the operator maximum convenience and view. The
master controllers shall have ball and rod handles mounted on vertical
radial arms and shall return to neutral if not held. Detents or other
means shall be provided to indicate each speed step. An individual
controller shall be furnished for each motion of the crane. The handle
of the hoist controller shall pull back to hoist. The travel
controllers, located in the cab, shall be arranged so the handle moves
in the direction of travel. Preliminary operation of controller to set
up control circuits prior to initiating motion will not be permitted.
The operator shall be able to stop the motors, without time delay, from
any position of the master controllers. The motor controllers shall
have definite speed control points in each direction of operation.
Instantaneous forward and reverse jog buttons shall be provided for the
trolley controllers. The drift point of the trolley is bypassed on jog.
Each of the speed points shall be capable of 60 minute continuous
operation without overheating or overloading any part of the crane
system. The starters for the motors shall be the full voltage, magnetic
type. The overload protection shall be provided in each phase of all
the motors and shall be automatic resetting. The overload device shall
provide sufficient time delay to permit the motor to draw starting
current during a normal starting period with rated or lesser loads
applied to the hoist without causing the relays to trip. Operation of
an overload device shall deenergize the motor. The control circuit
shall be such that the controls must be released before the motor can
be restarted. (b) Disconnecting device. -- A disconnecting device with
overcurrent protection shall be provided between the runway collectors
and the electrical equipment on the crane and shall be electrically
operable (open and close) from the remote radio control pushbutton
station or the operator's cab. The device shall provide means for being
locked in the open position and shall be rated to interrupt a minimum
fault current of 10,000 amps, symmetrical at rated voltage. (c)
Adjustable frequency control. -- The adjustable frequency controls
shall be microprocessor-based. Software must include inverter plug
reverse operation, load check function for hoist applications, and
automatic data write-protection. Inverters shall have
stepless/infinitely variable control. The method shall provide for any
speed between a programmed minimum and maximum speed by using detent
points for each direction of motion. as follows: 1st Detent: Motor soft
starts (ramps up) to a field programmable minimum speed. Direction
shall be selected by lst detent. To 2nd Detent: Motor speed holds To
3rd Detent: Motor speed increases over a field programmable time ramp
until desired speed is attained (Note: Maintaining the 3rd detent
position -- maximum speed will ultimately result.) Back to 2nd: Motor
speed holds Detent Back to lst Motor speed decreases down a field
programmable Detent: time ramp until desired speed is attained. (Note:
Maintaining the lst detent position—minimum speed will
ultimately result.) Release to An electrically released, spring-set
motor Off Position: holding brake shall be released by means of an
electromechanical contactor that supplies full voltage to the brake
coil. The adjustable frequency speed control shall equal "IMPULSE G+,
with Open Loop Vector Mode" as manufactured by Electromotive Systems,
Inc, PO Box 13616, Milwaukee "Smartorque," as manufactured by
Harnischfeger, P.O. Box M-2015, Milwaukee, WI 53201; or Toshiba
Tosvert-130G2, as manufactured by Toshiba International Corporation,
13131 West Little York Road, Houston, TX 77041. (d) Radio control. --
Radio control shall operate through the static controllers provided for
cab control; however, simultaneous control from both cab and remote
radio shall not be possible. Radio control shall be provided for all
crane motions with complete range of speed control and remote control
of the crane disconnect means. Specific requirements for the radio
control are as follows: (aa) Controlled rangeon all functions with a
maximum of 200 feet adjustable down to 50 feet. (bb) Solid-state,
fail-safe electronic control circuits on all remote control devices and
receiver equipment. (cc) The crane disconnect device shall be operable
from the radio transmitter via electrical means. (dd) The radio
controlled crane shall be under the full control of the operator on the
floor at all times. A special additional safety channel shall be built
into the transmitter. The absence of a signal on this channel shall
cause all crane motion to stop. The failure of an electronic part shall
not result in runaway of a crane motion. All circuits up to the output
relays shall be designed so that the failure of an electronic
component will result in the immediate stopping of the crane or the
involved motion. All crane motions shall stop automatically when the
receiver is out of range of the control transmitter. The station shall
be capable of controlling the main or auxiliary hoists, trolley and
bridge in the same manor as the equipment in the cab. Markings on the
station shall clearly identify the load will travel when a function is
activated. The controls for the hoist shall be marked "UP" and "DOWN";
for the bridge, "FORWARD" and "REVERSE"; for the trolley, "UP STREAM
and "DOWN STREAM"; and for the disconnect device, "START and "STOP".
(ee) No electrical interference or extraneous signal from within or
without the plant shall result in unsafe operation of the system. Also,
the radio system shall not generate any signal which will interfere
with the powerplant control, excitation, protection, or communication
systems. The radio system shall provide safe, reliable, fail-safe
operation under all conditions including substantial momentary voltage
drops on the system supplying crane power. (ff) System shall give
positive operation under all conditions of temperature, humidity, and
vibration encountered in the plant. This system shall be designed to
have an extremely long service life, commensurate with the service life
of the crane. (gg) Response to the operator's signals of the complete
radio control system shall be virtually instantaneous. No noticeable
lag shall be encountered. (hh) Components of the system shall withstand
normal handling by lay users. Mechanical design shall be conservative.
Rugged, industrial type parts and construction shall be used
throughout. Operator shall require no special training or electronic
knowledge. (ii) All electronic circuits and mechanical work shall be
designed at the outset to be troubleproof. No vacuum tubes shall be
used. Long-lived semiconductor active elements shall be used throughout
the system. Other long-lived electronic components shall be used to
complement the long service life of the semiconductor elements. As far
as is practical, electronic circuits shall be fabricated in module
form and be readily replaced should they ever require service. No
in-plant maintenance beyond the occasional replacement of plug-in
relays or plug-in circuit module shall be required. Transmitter shall
be completely self-contained with battery low voltage light or gauge.
No wires or external antennas shall be attached to the transmitter.
Control shall be entirely by means of radio signals. Battery pack shall
be self-contained. (jj) The batteries for the remote transmitter shall
be rechargeable batteries designed to provide a minimum of 8 hours of
continuous operation before recharging. Each remote transmitter shall
have spare rechargeable batteries, and a charger capable of charging
all batteries at one time. This battery system shall be capable of
continuous operation of the radio system for an indefinite period of
time. Low voltage of these batteries shall not cause misoperation of
the crane. (kk) Motion switches shall be especially designed with
spring return to neutral when the operator's hand is removed for full
"deadman" operation. Spring restoring force shall be light to minimize
fatigue. Operator shall be able to readily control crane without
looking at switch positions so that his full attention may be given to
the crane and its load. (ll) An additional safety channel shall be
built into the control box. It shall automatically come on when the
operator throws the master-on toggle switch. In addition to any motion
command, this safety channel shall be on for the crane to move in any
direction. A crane light shall also be tied to this control safety
channel in the receiver. The operator then knows he has full control of
the crane when the crane light is on. (mm) A pushbutton switch shall be
provided to sound a crane warning gong, or horn. (nn) Preferably, an
FCC license shall not be required. Contractor shall certify in writing
to the owner that transmitter fulfills all pertinent FCC regulations
in effect at the time of delivery. There shall be no wait for the
assignment of special frequencies by FCC. (oo) The control switches
shall give directional commands and control all speeds in each
direction. The crane control must respond to the radio commands
properly, regardless of how rapidly the transmitter levers are
manipulated including plugging operation. The transmitter shall be
capable of transmitting the master command, all motion commands, and
all auxiliary function commands simultaneously. The receiver shall be
equally capable of simultaneous control. (pp) The enclosure which
houses the receiver shall be a NEMA type 12 box providing protection
against dust, moisture, etc. The enclosure door shall be neoprene
gasketed. The door shall have a special key to prevent access by
unauthorized personnel. (qq) A lockable selector switch shall be
provided in the cab for transmitting (transforming) the control from
radio to cab backup station. (rr) System design shall provide for rapid
identification of faults to the module involved by operating or
electrical maintenance personnel. Test lights shall be provided on all
decoding/relay-driving modules to indicate whether or not those
modules are functioning properly. A simple portable test device, the
use of which shall require no interpretive readings, shall be provided
with thesystem to test the transmitter. (ss) The radio system shall
operate through, yet be separable from, the regular control system.
Radio control system malfunction or failure shall not prevent normal
cab control operation. The radio control system shall equal Series 9000
by Telemotive, as manufactured by Maxtec International Corp., 6470 W.
Cortland Street, Chicago IL 60635. (2) Collectors. -- The collectors
shall be of the double-shoe pantograph type (parallel hinged Posted
05/19/00 (W-SN456907). (0140) Loren Data Corp. http://www.ld.com (SYN# 0187 20000523\36-0003.SOL)
36 - Special Industry Machinery Index Page
|
|