Bid_#2027-09_Outdoor_Emergency_Warning_Siren_Specifications.pdf

Outdoor Emergency Warning Siren

Bid # 2027-09 Specifications

1. General

1.01 The specifications are for the furnishing and installation of two (2) new emergency sirens in place and ready for service and removal of the existing siren and any accessories that are part of the operation of the old siren, this includes the removal of the concrete pad if it is not required to be used for the new siren. This is the replacement of Siren #1 (DB-6) that is located at 2602 Danbury Dr – Pepper Ridge Elementary School Parcel # 21-18-452-012 and Siren #15 (BB-

2) that is located at 614 IAA Dr Parcel #14-35-377-017. The specific location where the siren is to be installed shall be adjusted based on actual JULIE field utility locations and as approved by the City of Bloomington. The project includes all necessary electrical equipment, hardware for installation, concrete pad, pole, and parts to make the siren complete and operational. Power service will come from the existing electrical service for the current siren at this location which is mounted on the existing wood pole.

1.02 The bid includes the removal of the old siren.

The City retains all salvage rights for the portions or pieces not used in the new siren installation. All parts not used in the new siren shall be returned to the City of Bloomington as directed by staff. Any parts which are not fit for salvage shall be properly and legally disposed of by the contractor.

2. Time of Completion

2.01 Work under this contract shall be completed by April 30, 2027.

2.02 It is agreed that for each and every calendar day that elapses between the completion date and the date on which the work is actually completed, the contractor shall pay to the City of Bloomington as liquidated damages, and not as a penalty, the sum of fifty dollars ($50.00).

3. Payment

3.01 Payment shall be made to the contractor as one single payment, in full, when the project is complete and all work is accepted. The contractor shall submit the equipment warranty and waivers of lien from any subcontractors or suppliers before final payment is made.

4. Siren

4.01 The siren shall be furnished and installed by the contractor at the location to be designated by the City of Bloomington. It shall be an American Signal Corporation Tempest Model T-128 operating on DC, or the equivalent in quality and performance.

The siren shall have an optional AC power supply unite, allowing the siren to operate on standard power, using the batteries for back-up power only. Batteries shall be included with the siren installation.

Siren controller shall use an FSA (Frequency Shift Keyed) method for data communication. The FSA data stream will have additional security features available to prevent false siren activation. The data packet format must be compatible with the CompuLert software currently in operation at the Bloomington Dispatch Center and the McLean County Emergency Management Agency. The use of Two-Tone or DTMF communications for the control are not acceptable.

Exact siren location will be determined and provided to the successful bidder prior to installation. The general area location of the proposed site has been provided.

4.02 The siren equipment must utilize an efficient direct drive (no belts) motor design for both sound production and siren head rotation to limit spare part inventory cost and facilitate ease of maintenance. The system shall operate from a 48 volt DC power source of deep cycle rechargeable batteries capable of providing 15 minutes of continuous signal after an AC power failure. The batteries must allow for a five (5) minute signal reserve capacity after 21 days without AC power for charging. Power equipment for the siren is 120 volts AC and shall not exceed 10 amps charging current. A concrete pad shall be used if any part of the siren is housed at grade level, such as the blower in many older installations.

4.03 The siren shall be activated by a Motorola XPR5380e Enabled radio, Model AAM28UMC9RA1AN operating in an analog mode. It should be variable from 10 to 35 watts and supplied with DC power cable kit HKN4191 and expanded accessory connector kit PMLN5072. The radio and antenna system shall be included in the bid. Contact Mobile Communications America (MCA), 5080 N Brush College Rd., Decatur, IL, 62526, phone 217-877-3242 to answer any radio interfacing questions.

Radio communications must be compatible with 800 MHz signaling protocol currently in use in McLean County. The siren controller shall have circuitry which will wait for channel availability before communications are initiated.

4.04 Battery back-up shall be provided for the siren controller and alarm system. It will operate the electronics and radio transceiver in case of AC mains failure. A built-in charger system will keep the battery at full charge during normal operation. The backup battery system shall include a Battery Charge Management System or an approved equal controller for monitoring and maintaining the batteries at optimal condition.

4.05 The siren and installation shall comply with the FEMA Outdoor Warning Systems Guide CPGI -17.

4.06 Some of the required performance characteristics of the siren are as follows:

Standard operating voltage may be 120/240 VAC as required The siren shall be a rotating directional alarm type Range shall be a minimum of one (1) mile in radius Sound output shall be 128dCB at 100 feet (on axis) Signal duration shall be three (3) minutes standard Rotation of the siren shall be from 2 to 6 rpm (adjustable)

4.07 The siren control must be UL listed and shall be a magnetic starter type, and shall be capable of being activated by a manual push button, a siren timer, or via radio decoder relay output. It shall be mounted in a fiberglass NEMA rated enclosure suitable for outdoor locations. Cabinets for housing corrosive materials (i.e. storage batteries) shall not have a common wall to any area housing electronic equipment for operation of siren.

4.08 All exposed metal surfaces, unless stainless steel, shall be properly finished to inhibit deterioration and corrosion due to weather and sun.

4.09 All internal wiring for siren operations shall be permanently secured and protected from direct precipitation. All wiring entrance ways to enclosure housing electronic equipment shall not preclude wall mounting.

4.10 The siren shall operate in temperature ranges from -30’C to +600’C while batteries are maintained at 18’C or higher. The effects of rain, ice or snow shall not hinder operations.

4.11 The siren shall have sufficient mechanical strength and sufficient torque to withstand and operate in winds up to 100 MPH.

4.12 In compliance with FEMA CPGI -17 Outdoor Warning Systems Guide, the siren shall not produce sound pressure level greater than 123dB at ground level to prevent hearing damage. Siren shall not produce potentially environmentally hazardous ultrasonic signals. This must be certified by the manufacturer.

4.13 The siren shall include adjustable mounting brackets for varying size poles and be easily removable for mounting on flat surfaces of roofs of buildings.

4.14 A programmable Growl Test Signal with a time duration of ¼ second to 15 seconds must be available for the purpose of siren testing and siren diagnostics. This Growl Test must be compatible with the siren controller and activation hardware and software used by the City of Bloomington. The Siren Control shall be compatible with the American Signal U-RTU and CompuLert CSG-960 encoder. All siren sites must be controlled via radio link using CompuLert computer software.

4.15 A factory pre-installed sensor shall monitor each motor within the siren to provide positive proof that the siren has sounded. The blower motor being the primary concern, but a unit having more than one motor, each motor has to be monitored and a failure reported to the controller. One sensing device can be used so long as it has the ability to report a failure on any motorized devise used at the siren site.

If a siren has more than one motor, each motor shall be monitored with a pre-installed sensor. The sensor(s) will provide proof positive operation in the event the motor winding open circuits due to a failure in the windings or interconnecting cabling.

5. Guarantee

5.01 All equipment to be furnished shall be guaranteed for a period of one

(1) year from the date of formal acceptance by the City of Bloomington against defective materials, design and workmanship.

5.02 Upon the receipt of notice from the City of Bloomington of failure of any part of the guaranteed equipment during the guaranteed period, new replacement part or parts shall be furnished and installed by the contractor at no additional cost to the City, except in cases where it can be established that the failure of the equipment was the result of poor maintenance or improper operation.

6. Plastic Conduit

6.01 Conduit and fittings shall be rigid polyvinyl Chloride (PVC), be UL labeled and MEMA EPC-40-PVC. Material shall permit chemical solvent sealing of joints in field, providing continuity of mechanical strength and water-tightness.

6.02 Plastic conduit shall be Amoco Type 40, Carlon Type 40 or Triangle Schedule 40.

7. Liquid-tight Flexible Metal Conduit

7.01 Liquid-tight flexible steel conduit shall be constructed of a flexible galvanized steel core made from continuous strip metal and an extruded PVC cover. Conduit shall be Anaconda Type EF.

7.02 Fittings shall have insulated throat and be UL labeled. An ‘O’ ring assembly shall be used on each fitting. Fitting shall be manufactured by Appleton Electric, Ideal Industries, Efcor, or Thomas & Betts.

8. Cable

8.01 General use cable shall be NEC type THW of THWN, rated for dry and wet locations, 600 volts, and 75C. All cable shall be copper unless noted otherwise on the drawings.

8.02 Conductors shall be annealed, uncoated copper wire, and shall be stranded.

8.03 Insulation shall be high quality PVC compound in compliance with UL Standard 83, ANSI-C33-80 and Federal Specification VC-30-A.

9. Outdoor Boxes

9.01 Outdoor boxes shall be ‘copper-free’ cast aluminum or cadmium plated, cast or malleable iron with threaded hubs, Type FS or FD. Manufacturer shall be Appleton Electric, Couise-Hinds, Killark, Pyle-National, or Russell & Stoll.

9.02 Exterior boxes shall also be gasketed.

10. Pole

10.01 The siren shall be mounted a minimum of 50 feet above the ground.

The pole shall comply with the manufacturer’s specifications

11. Installation Butt Base Poles

11.01 Butt base poles shall be buried 10% of pole height plus 2 feet. Hole shall be 12 inches in diameter greater that the largest diameter of the butt. Pole shall be centered and aligned in hole prior to back-fill. Back-fill shall be hand-tamped 1 ½ inch limestone road pack. Hand tamp back-fill in 12 inch layers. Pour five (5) gallons of water in hole for every 12 inch lift.

11.02 The pole shall be installed plumb.

11.03 Any pole being moved due to site relocation can be reused at contractor’s discretion. Hardware attached to existing pole shall be moved to new proposed location as needed. Any wood pole being moved but not totally removable shall be cut off at least 12 inches below grade. All electrical supply to the pole shall be disconnected at the transformer supplying the electricity. All in ground wire supplying the pole shall be cut back 3 feet from the pole base and may be left in the ground. Existing pole may be disposed of as the contractor wishes.

12. Fuses and Surge Protection

12.01 All fuses up to 600 volts and 600 amperes shall be Bussman dual-element ‘Low-Peak’ with 60,000 ampere interrupting capacity.

12.02 A Square D SDSA1175 Secondary Surge Arrester or approved equivalent shall be installed at the main power disconnect nearest the electrical service.

13. Conduit Systems

13.01 All risers and conduit at the pole base shall be galvanized steel rigid conduit. Underground conduit shall be installed a minimum of 36 inches below grade. Conduit shall be installed prior to placement of concrete. All risers and conduit at the pole base and for the first 8 feet up the pole shall be galvanized steel rigid conduit. Other conduit used as required to the pole or above the 8 foot level may be PVC as specified in 6.01.

13.02 Raceways located on exterior surface of pole shall be galvanized rigid conduit.

13.03 The contractor shall perform all trenching and back-fill. The contractor shall verify locations of all existing underground utilities and shall protect same from damage during construction. In the event existing utilities are damaged, the contractor shall bear the responsibility of repairing or replacing the damaged utility.

14. Cable Installation

14.01 All conductors shall be copper and minimum No. 10, except where noted in these specifications and/or on the drawings. Stranding of copper wires shall conform to ASTM B8 (Class B) ‘Concentric Lay-Stranded Copper Conductors’.

14.02 The inside of conduit and raceways shall be dry and clean before cables are pulled. Care shall be exercised in pulling to avoid damage to the cable.

An approved type of lubricant may be used.

14.03 Cables terminating in outlet boxes shall be a minimum of eight (8) inches long.

15. Cable Connections

15.01 All splices, T-taps and free ends of 600volt cables shall be insulated.

15.02 Cable connections for 600 volt No. 8 and smaller for making terminations, T-taps, and splices shall be with a compression or bolted type pressure connector or wire nuts. Connector shall be copper and as manufactured by Buchannan Products, Burndy, Thomas & Betts or Ideal.

15.03 Cable connections for 600 volt No. 6 and larger to making terminations, T-taps, and splices shall be with a compression or bolted type pressure connector. Connections shall be insulated with 3M No. 33 tape, Permacel or Plymouth and an outer layer of friction tape.

16. Inspection and Tests

16.01 General – Test shall be performed on all electrical equipment and complete systems as required under the various sections of these specifications.

All tests shall be made after notification to and in the presence of the City’s representative. All labor, materials, instruments, and supplies of any kind required for testing shall be supplied by the contractor. Operational and performance tests on equipment which normally operates only during certain times of the day or month, shall be made during the appropriate time and at such time when ability of the equipment to perform can be demonstrated. Material and equipment damaged or shown to be defective during tests or unable to perform at design or rated capacity shall be repaired or replaced to the satisfaction of the City’s representative.

16.02 Testing

(a) After wires are in place and connected to devices, the systems shall be tested for shorts and grounds.

(b) All hot wires, if shorted or grounded, shall be removed and replaced if trouble is within the conduits.

17. Intentions

17.01 These specifications are not intended to include any proprietary items, components, circuits, or devices which would preclude any outdoor warning siren manufacturer from producing equipment to meet these specifications. All ratings, power outputs, and specific criteria are currently being met by commercially available equipment. The fact that a manufacturer chooses not to produce equipment to meet these specifications, providing the above criteria are met, will not be sufficient cause to adjudge these specifications as restrictive.

18. Exceptions

18.01 All bidders must meet or exceed the specifications. No exceptions, unless authorized by the City’s designated representative.