Attachment Q - Technical Specifications Cumberland_Final.pdf

ATTACHMENT- Q

TECHNICAL SPECIFICATIONS

CUMBERLAND COMMUNICATIONS FACILITY

TORFP WORK

1) Summary

This task order is for the purchase and turnkey installation of:

a) one (1) 185-ft monopole tower

b) one (1) 12x26 ft. concrete equipment/generator shelter foundation

c) one (1) 12x26x10-foot two room equipment shelter containing a 30kW backup generator

d) one (1) 1000 gallon propane tank with foundation

e) n at the following

Location:

600 Bishop Walsh Road

Cumberland, Maryland 21502

Grid Coordinates: Latitude39° 39' 48.18" N 83 Longitude -78° 47' 21.63" W

The TO Contractor shall comply with all applicable sections of the MD State Highway

Administration Standards of Construction Specifications for Construction and Materials, July

2024. (MD SHA Standard Specifications for Construction and Maintenance July 2024).

TO Contractors will only use approved tower and shelter designs. The following manufacturers have preapproved designs:

Valmont www.Valmont.com

Cellxion www.cellxion.com

Fibrebond www.fibrebond.com

Thermobond www.thermobond.com

Virginia Fiberglass Products (VFP) www.vfpinc.com

Sabre Towers www.sabreindustriesinc.com

Cell Site Solutions https://cellsitesolutions.com

The State will not accept proposals that use a Generac brand generator.

The TO Procurement Officer’s prior approval must be obtained for use of anything other than the foregoing.

http://www.sabreindustriesinc.com/ https://cellsitesolutions.com/

2) TORFP Specifications

The TO Contractor shall provide all coordination, functions, labor, materials, insurance and purchase items required to install a fully functional microwave and wireless communications site in accordance with the following specifications:

A. Site Preparation Work

1. TO Contractor shall update City of Cumberland’s Plans and Permitting division with appropriate general and electrical contractor information, licenses and insurance to obtain conditionally approved permits. Permits have been paid for, and the permit plans are on file with Cumberland’s plans and permitting division.

2. TO Contractor shall locate any buried electrical and/or telephone cables on all of the property affected by the tower site construction and installation of electrical and communications conduits.

3. The TO Contractor shall follow the approved sequence of constructions as shown in the attached construction drawings- Attachment Y. Any deviations must be approved by the

County or MDE, as required.

4. TO Contractors may use subcontractors who have experience in civil / site work, Erosion and

Sediment Control (E&S) implementation and Storm Water Management (SWM) and Storm

Drain (SD) construction , etc. and meeting MD Dept of the Environment and Allegany

County/Cumberland’s requirements. TO Contractors without white cards must use approved subcontractors to install and maintain soil and erosion controls who do have these certificates.

5. TO Contractor shall, if applicable, coordinate and meet with County or MDE environmental inspectors to obtain and ensure compliance with permits and regulations for maintaining sediment and erosion control. This will be done at least 7 days prior to any construction.

6. The TO Contractor will maintain an A or B rating for the E&S controls for the duration of the project. Grades of C, D or F may result in liquidated damages.

7. The TO Contractor will clear, grade, survey and mark the Limits of Disturbance (LOD) in accordance with the attached construction drawings- Attachment Y.

8. The TO Contractor shall furnish and install sediment and erosion control systems and all storm water management features in accordance with the attached drawings. Sediment and erosion control systems may include but are not limited to: silt fencing, silt stakes, hay bales, etc. Disposition of any spoils shall be conducted in accordance with the most current version of Maryland Dept of the Environment (MDE) policy. Details are provided in Attachment Y-

Construction Drawings. Deviations from the drawings require County or MDE approval as appropriate. A watertight container will be placed on site to contain up to and including the following: Approved Construction drawings, daily completed SWM/ES inspection logs, all applicable permits for construction, and copies of all materials related to the construction of the site (i.e., concrete delivery tickets, stone delivery tickets, MDI, etc.). The container must be placed in a conspicuous location on the site. The site will be subject to random and scheduled inspections. Sites left dormant will be stabilized prior to departure in accordance with County or MDE standards as appropriate. Sites are subject to inspection even during dormant periods. Maintenance of all E&S measures will be required until approval is granted to remove each feature. One individual, designated by the TO Contractor, will be responsible for the supervision of all E&S controls and issues. This individual shall have a current white card.

9. The TO Contractor shall furnish and install a stabilized construction entrance in accordance with the construction drawings. Near completion of the site improvements the stabilized construction entrance will be restored to match the grade of the existing access road in accordance with the approved construction drawings- Attachment Y.

10. All concrete supplied shall originate from a State certified / SHA approved plant. Supplied concrete shall meet SHA, tower designer specifications and comply with Section 902 of the

MD SHA Standard Specifications for Construction and Maintenance July 2024. TO

Contractors shall use an SHA approved concrete mix that complies with the tower and shelter foundation designers’ specifications.

11. Construct the tower foundation per tower manufacturer’s specifications, as outlined in

Attachment Y- Construction Drawings.

12. Construct one (1) 12x26ft. equipment shelter foundation. The foundation designs shall be approved by the shelter manufacturer. At a minimum their footers will extend at least 6 IN below the local frost line. The construction of each concrete foundation shall contain an integrated continuous stoop for the doors.

13. Construct one (1) 4x16ft. Concrete foundation for one (1) 1,000 gallon LP fuel tank. The foundation will be constructed on compacted dirt and no less than 3 IN of #57 stone. The foundation will be at least six inches above final grade and be reinforced with rebar or 6x6 metal mesh.

14. Install tower and shelter ground rings per the latest version of Motorola R56 installation standards. This will include at least two test wells. Test wells shall not interfere with vehicular traffic. Locations will be verified by the Project Manager

15. Upon completion of tower, shelter and site improvements, the TO Contractor will furnish and install surface materials in accordance with Attachment Y - Construction Drawings. TO

Contractor shall restore all areas of grass or existing pavement which have been disturbed during construction.

16. The TO Contractor shall install an six (6) ft. high-galvanized chain link fence with one (1) feet of barbed wire on top, with a twelve (12) ft. wide, double leaf vehicle gate; and one (1) five (5) foot man gate around the site (includes tower, equipment shelter) as shown on

Attachment Y- Construction Drawings. The fence materials will be bonded/ grounded in accordance with the latest version of R56. The fence fabric should be bonded at the corners and only at locations along the length of the fabric where a ground rod is placed. The TO

Contractor shall utilize #2 solid, tinned copper to bond the fence fabric and barbed wire. It will be encapsulated in ¾” non-metallic liquidtite to prevent incidental contact. The TO

Contractor shall provide chains and combination style commercial grade padlocks for the security and man gates. The State TO Manager shall be given the combination and shall control access to the site.

B. Tower Specifications

1. The tower shall be a 185 ft monopole tower. The tower shall be constructed of high-strength steel. All components and hardware are to be hot-dip galvanized with a zinc coating (per EIA standards) after fabrication. A zinc coating shall be permanently fused to the steel, so all surfaces are protected and no painting is required for rust protection. Upon delivery, the tower shall be subject to approval by the State TO Manager.

2. Exact placement of the monopole tower and shelter shall be coordinated by the TO

Contractor with the State TO Manager.

3. The monopole tower shall be required to meet or exceed the latest EIA 222-H standards for this type of tower. It will be designed to carry the number and type of antennas as per attachment Y-Construction drawings. The tower and associated installation shall conform to all local, County, State and Federal Equipment Shelter codes. Federal Aviation

Administration (FAA) approval and permits are included in Attachment Y -Construction

Drawings. The tower will be designed with the following 222-H design criteria:

Three second wind gust 118 MPH

Three second wind gust concurrent with radial ice 30 MPH

Concurrent radial ice 1 inch

Structure classification III

Exposure category C

Topographic category 2

Crest Height 891 ft

4. Proper and thorough grounding and bonding methods in accordance with currently published

Motorola R56 standards shall be employed to provide maximum lightning protection.

5. The TO Contractor shall use soil borings report included in Attachment V for analysis to assure that the engineered tower foundation and the calculated ground loadings are acceptable. The TO Contractor shall furnish two (2) copies of the foundation designs and the ground loading calculations certified by a Maryland registered Professional Engineer (P.E.)

to the Maryland State Department of Information Technology. The TO Contractor shall furnish a statement that the engineered tower foundations and the calculated ground loadings meet the manufacturer’s recommended requirements.

6. Step bolts safety climb and grounding bars are to be furnished and installed by the TO

Contractor as part of the tower. Safety climb standoffs will be of sufficient length to ensure the safety climb does not rub on the flanges. Tower ground bus bars will be grounded to the tower ground ring and bonded directly to the tower structure through the use of stainless-steel hardware. Tower ground bus bars will be a minimum of ¼”x4”x24”, (minimum 33-hole pairs) copper bars. One tower bus bar will be provided for each cable ladder installed.

7. All leg and leg flange PL material is ASTM A-572 grade 50 (Fy >= 50 ksi). All other material is ASTM A36 (Fy >= 36 ksi).

8. Anchor bolts will comply with ASTM A449 and be any number or size determined by the tower designer to comply with the requested load requirements.

9. Tower foundation concrete strength will be at least 4500 PSI or the tower foundation designer’s recommendation; whichever is greater. Concrete testing will be conducted in accordance with DoIT’s concrete inspection policy memorandum (see Attachment R). Test cylinders will be crushed and results provided to the State TO Manager prior to stacking the tower. Tower erection will NOT commence until verification is provided that the concrete has reached the minimum compressive strength. Compressive strength can be tested prior to

28 days to expedite the tower erection, but this does not exclude the TO Contractor’s responsibility to supply 28-day crush reports. The tower foundation sub base will be tested and ensured compliant with the tower foundation design. The contractor will protect the sub base appropriately from water infiltration until concrete is poured. In the event, the sub base is not adequately protected then the State project manager may request the retesting and remediation at the contractor’s cost.

10. Non-chloride, non-corrosive concrete set accelerate may be utilized in compliance with

ASTM-C-494 type C and ACI-318.

11. Water reducing admixture may be utilized in compliance with ASTM-C-494.

12. All admixtures should be dispensed into fresh concrete and sufficiently mixed in the concrete truck. All admixtures must be added separately.

13. Minimum concrete cover of 3” on all steel.

14. Crown top of pier for drainage and chamfer all exposed concrete edges 1”.

15. Compact backfill in 8” lifts. Remove all forms prior to backfill.

C. Equipment Shelter Specifications -12’x26’x10’ 2- Room Shelter with 30 Kw Generator:

1) Shelter installations must be in conformance with the manufacturer’s requirements for application of warranties provided by the manufacturer as well as be compliant with the current version Motorola R56 grounding and bonding requirements.

2) The equipment shelter supplied shall be a one-piece concrete communications equipment shelter and include:

(1) A 30 Kw Propane fueled generator.

(2) A load center accommodating no less than 200 amp, 120/240 VAC single-phase input, including:

● A minimum of 48 breaker positions.

● Industrial-grade construction, rated for service entrance.

● Manufactured by Square D.

(3) One (1) Type 2A SAD/MOV Surge Protective Device:

● Compliant with the latest version of Motorola R56, Section 7.5.2.1;

● Integrated with the load center using no less than a 60-amp, two-pole breaker and #6 AWG conductors.

(4) One (1) Manual Transfer Switch (MTS):

● Make-before-break style.

● Double-throw and mechanically interlocked.

● Mounted inside the shelter and fully integrated with the load center.

● Integrated with the supplied Appleton-style receptacle.

● Accommodating no less than a 50 kW external generator.

incorporating the main service disconnect, manual transfer switch, surge protection and load center, and 200-amp sub feed with installation. The supplied equipment shelter shall be nominally sized

12’x26’x10’ (height is inside dimension) and configured with two rooms as depicted in the attached construction drawings- Attachment Y.

3) The double room shelter shall be provided with a NEMA 4, 250 Volt D.C., 600 Volt A.C.

200amp, weatherproof emergency generator receptacle such as Appleton AJA20044-200, mounted on the front of the shelter to allow connection of a 30kW portable Emergency Generator in case of failure of the internal generator during a power outage. The generator receptacle shall be located in such a place that it will not interfere with the operation of the equipment room door.

The receptacle’s operation will be controlled by operating the manual transfer switch inside the equipment shelter.

4) Furnish a compatible Appleton plug such as AP20044CD with 50’ of conductors terminated in a pig tail. The plug will be designed to interface a portable generator with the Appleton receptacle mounted on the building. The plug will be weatherproof, and the conductors will be adequately insulated and weatherproofed. They should be sized to safely connect a 30 KW emergency generator and mitigate any voltage drop. The cable assembly will be provided with each shelter and installed inside the generator compartment on an adequately sized hose bib in accordance with the attached shelter layout. If made of conductive material the cable holder will be bonded per the latest version of R56.

5) Two 16-port cable entry points complete with weatherproof caps shall be provided for antenna cable entry. One entry point will be located on the long side of the Equipment Shelter and the second entry point will be located on the end wall of the Equipment Shelter between the air conditioner units. These locations are shown in the construction drawings developed in Phase 1.

Each port within both assemblies shall be 4” in diameter and shall be located with the top of the assembly located directly under the cable rack, in four (4) rows of four (4) ports each. In addition to the cable entry points, one single four-inch PVC conduit sleeve for communications conduits and one single two-inch PVC conduit sleeve for installation of S.O. cables to the tower lighting system, both with temporary end caps shall be installed. The actual location of these penetrations and sleeves must be confirmed with the Project Manager prior to the fabrication of the shelter.

6) Cable ladders (24” wide) shall be mounted from the ceiling using all- thread and “cherry” insulators eight feet above the finished floor as measured from the floor to the bottom of the cable ladder, as depicted in the attached construction drawings- Attachment Y

7) Two 5-ton 230/208V-Single-phase, dual (redundant) wall-mounted, vertical, self-contained

HVAC units with 5-kw heat strips shall be installed at the locations specified on the equipment shelter drawing. Separate circuit breakers for each unit shall be installed in the main load circuit panel. The provided HVAC units shall have sufficient capacity for the Equipment Shelter size supplied, fully loaded with equipment. Each unit shall contain a time delay startup relay, low ambient control, and a forced air resistive heat strip. The HVAC controller will include a humidity control feature. The outside portions of the units will be weather/rodent and tamper proof.

8) All shelters shall be equipped with 16” ventilation fans with gravity operated back draft louvers and 16” gravity intake damper with filter and hood (bug and rodent intrusion resistant). Each fan shall be connected to a thermostatic device to allow automatic fan on-off control. The openings will be provided with shutters and weather hoods. All required exhaust piping and intake and exhaust plenums required for the manufacturer’s recommended air flow shall be included as part of the installed equipment. All openings in the shelter structure for the provision of entry or exit of cables, equipment, ventilation, etc. must be sealed to prevent the invasion of the shelter interior by insects, rodents and external moisture.

9) Electric baseboard heater strips shall supply heating for the generator room. A thermostat mounted on the wall opposite the heater shall control the heater strips. The heater strips shall be of sufficient size for the generator room to maintain a room temperature of 72 degrees F.

10) Insulation shall be non-combustible, with a vapor barrier. Wall and floor thickness shall provide an R-11 (minimum) rating, and the roof shall have an R-19 (minimum) rating.

11) Concrete Construction – The wall outer finish will be natural stone aggregate finish with an aesthetically pleasing earth tone.

12) Each foundation shall be comprised of concrete piers or concrete pad with steel reinforcement.

The top of the finished foundation shall be 6 inches above finished grade. The foundations shall level each shelter such that all foundation to shelter contact points shall have equal loads. The equipment shelter is to rest flush on the poured concrete foundation without showing any gaps between shelter and pad and to be level to within ½ degree. The shelter shall have an integrated continuous stoop for the doors, and steps, if necessary, to provide safe entry into the shelter.

Installations requiring stoops more than 24 inches above grade shall have safety rails installed.

13) The minimum floor live load design for the equipment room shall be 500 pounds per square foot in one reinforced area measuring the full interior width of the shelter (nominally 12 feet) by 24 inches. This reinforced section shall be located beneath one equipment row, with the final location approved during the submittal process. All remaining portions of the equipment room floor shall have a minimum live load design of 300 pounds per square foot. The minimum live loading design for any generator rooms will be a minimum of 300 lbs, but appropriately adjusted for the final generator design. The minimum roof loading design will be 100lbs. per square foot.

The minimum wall loading design will be 34 lbs. per square foot. The minimum wind loading design will be 50 lbs. per square foot.

14) Two reinforced steel finished doors shall be located on the shelter, per Attachment T - Shelter

Layout 2 Room Shelter. The doors will be finished to match the appearance of the shelter. The doors shall be pre-hung, gasket sealed, insulated, and in a metal frame. The equipment room door will be approximately 3’ x 7’. The generator room door will be sized to allow for the removal and service of the generator, but in no case will be smaller than the equipment room door. Doors will be supplied with door- closer, magnetic weather stripping, drip strip over door, doorstop, door sweep and a 42” door canopy. Door checks and doorstops shall be provided along with a three (3) point locking system for maximum security. The doors will have non-removable ball bearing hinges and deadbolt locks with tamper plates installed. These deadbolt locks shall be security type with removable cylinders, such as “Best” locks. The generator and equipment room doors will be bonded to their frames with welding cable of an appropriate gauge in accordance with the latest version of R56. Braided cables will not be used. All hoods provided should be non-metallic

15) The equipment shelter floor shall be covered with 1/8”, 12” x 12” vinyl tile, light in color (beige, tan or white). The walls will be trimmed with a 4” high and 1/8” thick rubber base trim against the floor.

16) The walls will be covered with a minimum of white wood-grained paneling or white vinyl over

½ inch plywood. The equipment shelter shall have a ¾” X 4’ X 8’ plywood telephone mounting board installed as depicted in the attached construction drawings- Attachment Y.

17) Electrical installation and wiring shall conform to the latest version of the National Electrical

Code. Surface-mounted, grounded, duplex outlets shall be provided at five (5) foot intervals

(where possible) around the interior walls. All wiring shall be installed in surface mount EMT conduit. Outlets shall be installed 18” above finished floor. Horizontal runs of conduit will be installed a minimum of 7 1/2 ‘above the floor whenever possible with vertical connections to the surface mounted devices to minimize interference with installing equipment against the wall.

Two weatherproof outlets will be installed on the exterior of the shelter. These outlets are to be located at both ends of the shelter. In addition, circuits supplying power to equipment racks # 3-

16 in the shelter shall extend downward six (6) feet from boxes mounted at 22” intervals on the ceiling as depicted in the attached construction drawings – Attachment Y.

18) Wiring for these drops shall be housed in “Sealtite” flexible conduit, and each drop shall be terminated in a quad receptacle box. Each quad box shall contain two circuits, and each circuit shall have its own dedicated 20- amp circuit breaker. These drops shall be planned to fall immediately adjacent to the edge of the cable tray. The exact location for each drop must be confirmed with the State TO Manager before the shelter is fabricated. The circuit breakers for the

240 VAC quad boxes supplying power to equipment racks # 1-3 shall be located in the main load center. Racks #1-3 shall be supplied with one junction box each containing one 240 Volt 20-amp circuit. The junction box will be fastened to the wall in accordance with the shelter drawings and supplied photos. All circuits will have a dedicated neutral installed in accordance with the latest

Motorola R56 standard. The junction boxes will be mounted in line vertically.

19) All low voltage wiring (i.e. alarm, control, etc.) shall be routed in separate conduits in accordance with the national electrical code.

20) Power to the shelter shall be fed through a properly sized 240-Volt, fused single-phase disconnect switch mounted on the exterior wall of the shelter (See Attachment T - Shelter Layout

2 Room Shelter).

21) Shelter is to be provided with 200-amp, 20-position (minimum) main load center, equipped with a minimum of twenty (20) 20-amp breakers. Breakers shall be “high magnetic” or high inrush current type (Square D, HM or equivalent). This box shall be installed at one end of the equipment area within five (5) feet of the primary cable entry port. In addition to the 200-ampere main load center, a minimum 20-position quad box load center shall be installed, fed from the main load center; the quad box load center shall be located on the generator room wall and shall supply power to quad boxes above rack positions 3-12. Load centers, circuit breakers and quad boxes shall be properly marked.

22) An interior ground (halo) system with a single #2 AWG stranded wire will be provided with proper connections to the shelter and, in turn, to the tower ground system. The halo will have a 6-inch break roughly opposite the Master Ground Bar. The #2 AWG ground wire for each row of racks will be suspended on independent ground lead stand offs as outlined in the typical shelter drawing. They will be positioned to ensure the #2 AWG lead is isolated from the main cable racks. No electrical conduit is allowed to bridge the 6” gap in the halo ground. The internal ground system will be mounted on the wall using 2-inch (2”) standoff insulators, connected to two (2) minimum ¼” x 5”x 24”, (33-hole pairs) minimum copper master ground bus bars that are installed directly under each cable entry port. The ground bus system shall be a Harger

EPK16MOT bus bar system or an approved substitute. The copper ground bars on the back interior wall of the shelter will be connected to the corresponding exterior ground bar with stainless steel insulated feed through. The external ground bar will be connected through a minimum of three (3) 2-inch copper straps to the external building ground ring and tower grounding system. All exterior connections shall be exothermically welded to ensure proper connection. Electrical ground will be bonded to the RF ground.

23) Purchase and installation of the following lightning protection devices in the equipment shelter:

i) An IEEE Type 2A SAD/MOV protection device shall be part of the integrated load center and approved for use in the latest version of R56.

ii) An IEEE Type 2B MOV protection device will be installed at the main power input inside the shelter, by means of a 60-Ampere (per “leg”) breaker or fused disconnect, across the utility lugs of the transfer switch. The device will be installed inside of the equipment shelter and approved for use in the latest version of R56 such as Transtector

IMAX series. Its installation will comply with the latest version of R56 and maintain the device’s UL1449 (latest edition) listing.

iii) All surge suppression devices will have the ability to create a dry contact alarm (contact closure upon alarm). This alarm will be integrated with the shelter alarm wiring. The dry contact alarms will be enabled from the factory.

24) The Air conditioning units shall be connected to the internal (halo) grounding system and to the external equipment shelter grounding system.

25) 48-inch, two or four-tube, energy efficient LED fixtures shall provide sufficient lighting

(minimum 50-foot candles) for the shelter in accordance with the construction drawings. The lights shall be controlled by a wall switch / timer internal to the shelter and located next to the entry door. An exterior entry light shall be installed outside the main doorway of the structure.

This light shall be controlled by a motion sensor wired through a wall switch inside the shelter.

26) The shelter shall be pre-wired, with the following functions, to a common point in the equipment room and terminated with a split 66 Block. The 66 Block shall be mounted in the upper right-hand side of the punch block board. All alarms shall be punched down on the left-hand side of the punch block using solid wire. The 66 block will not be enclosed in any box or enclosure. All functions/alarms will be programmed to be normally closed. Upon alarm they will open.

Generator alarms will be transported to a remote relay / annunciator panel via a RS485 circuit and associated 12VDC. Individual alarms will not be transported via single pairs.

1. High Temperature Alarm – Adjustable for over-temperature alert (may be integrated with HVAC system).

2. Low Temperature Alarm – Adjustable for under-temperature alert (may be integrated with HVAC system).

3. HVAC Failure Alarm- derived from the HVAC controller

4. Generator Running Alarm – Closure when generator is running.

5. Remote Generator Start – No transfer to load (a dry contact closure will remote start the generator but will not transfer to the load if commercial power is good)

6. Generator transfer to Load (a dry contact closure will initiate a transfer to load. If the generator is off, it will start the generator)

7. Low Oil Pressure Alarm

8. Low Coolant Alarm

9. Generator Over-crank Alarm

10. High Coolant Temperature alarm

11. Transfer Panel Switched- indicates that the transfer panel has switched to backup power

12. Equipment Room Door Alarm

13. Generator Room Door Alarm

14. Equipment Room Smoke Alarm

15. Equipment Room Heat Detector Alarm

16. Generator Room Smoke Alarm

17. Generator Room Heat Detector Alarm

18. Type 2a Surge Suppressor Alarm

19. Type 2b Surge Suppressor Alarm

20. Tr Alarm

21. Spare

22. Spare

23. Marker Alarm (per strobe controller)

24. Spare

25. Spare

27) On this double room shelter, there shall be a partition wall separating the emergency generator from the room containing the RF equipment. This partition wall shall have a one (1) hour fire rating (from the inside out and outside in). The floor under this section shall be reinforced to handle additional loading. Two gravity intake louvers and one exhaust fan with gravity louvers shall be installed. All louvers and openings will be wire covered for security and prevention of entry by rodents. A separate outside door shall be installed on this room and shall be identical to the equipment room door as depicted in the attached Construction drawings – Attachment Y.

28) The lighting for this room shall be controlled by a separate wall switch / timer internal to the room and located next to the entry door.

29) The TO Contractor shall supply with each equipment shelter a 30-kilowatt, propane fuled 1800-

RPM generator, 60 Hz, 120 / 240 volt, single phase with a 200-amp Automatic Transfer Switch

(ATS). Generac generators are not acceptable for this procurement. The final choice of generator must be approved by the TO Manager.

30) Installation shall include all materials, parts, labor, etc. to provide a fully functional generator back-up system. Included in the installed price is the transfer switch and all associated wiring as well as generator alarm programming in accordance with state requirements. Block heaters with the necessary wiring are to be included. Fuel hookup, and fuel supply piping to the shelter shall be provided by the site work Contractor. Fuel supply piping shall be non-metallic to comply with

R56 single point grounding requirements.

31) Fuel strainers on the fuel systems must be installed for proper drainage to prevent moisture buildup in the line. Proper sized flex fuel lines shall be installed on all generators and the fuel line so as to not impede the proper flow of fuel and must not be sharply bent or crimped. The flex jumper must be placed to ensure minimal engine vibration is transferred to the fuel solenoid assemblies to prevent rupture. The fuel line from the fuel source to the manifold shall not be less than 1” to minimize fuel pressure drop from no load to full load. The metal fuel line inside the room will be bonded to the internal halo where it enters the room. This can be done with a c-clamp style device at the fuel line. Proper venting of the fuel system must be installed to ensure no buildup of pressure and safe venting will occur. Fuel lines run in conduit or sleeves must be sealed from moisture. All exhaust piping that can come in contact with personnel will have a heat shield installed. Proper battery chargers must be installed for the appropriate system, either 12

VDC or 24 VDC, 110 VAC.

32) The Contractor must perform on-site startup of the generator under full load, using a load bank.

The original of the startup form must be completed and submitted prior to submission of an invoice for work performed. The TO Manager or designee must be notified in advance to attend the event at their discretion. The load bank test will be at least two hours in duration and conducted under half load for the first hour and full load for the second hour. The startup will also include the programming of all generator related alarms/functions.

33) All alarm outputs from the generator are to be extended to the radio compartment via a data cable and terminated in a remote annunciator panel which provides both visual and audible alarm indications for each circuit monitored. The annunciator panel will also provide either or normally closed dry contacts which can be field selectable as needed to provide the proper inputs to the existing “66 block” for the dissemination of alarm information to the system. The annunciator panel will be located directly below the existing “66 block” in the radio compartment.

34) All wiring for the generator must be routed overhead. It is unacceptable to cross the floor with conduits.

35) An external minimum of ¼” x 4” x 24”, (36-hole pairs) copper ground bar is to be installed on the outside of the shelter directly under the main cable entry port and attached with three (3), solid tinned copper, 2-inch ground straps, to the single ground point directly below the main cable entry port. Refer to Harger EPK16MOT.

36) The shelter shall be designed and installed per the latest version of Motorola R56 to include eye wash station, first aid kit, chemical and CO2 type fire extinguishers mounted on the partition wall in the radio compartment.

37) The shelter shall include one broom and dustpan (mounted to the wall), one six-foot step ladder, one (1) 30 gallon (plastic) garbage can and one box of 30 gallon garbage can liners. (Comment:

this is what we currently have in all of our shelters.)

38) An external ground ring shall be provided around the shelter foundation. Above grade ground tails will be provided. The buried external ground ring shall be in direct contact with the earth at a depth of 30 inches below the earth’s surface with ground rods driven into the earth at intervals not to exceed twice the ground rod length. In the event 10-foot ground rods cannot be driven, shorter rods are acceptable if driven at the proper intervals. The external ground ring is to be placed 3 feet outside the shelter foundation in order to be outside the drip line of the shelter.

39) All grounds must be bonded together. This includes the generator, shelter, fencing, and equipment shelter grounding systems, the ice bridge and the tower. The ground test reading must not normally exceed 5 OHMS. The State TO Manager or designee will test all grounds using a fall-of-potential method test to determine compliance. In the event 5 OHMS cannot be reached by reasonable means and through no fault of the Contractor, the State TO Manager will determine the course of action to be taken by the Contractor at an additional cost to the State.

Grounds must test fewer than 10 OHMS for the site to be acceptable for reasons of personal safety.

D. Specifications for Installation

1 Purchase and installation of one (1) 12x26x10 ft. concrete equipment two (2) room shelter

(height is inside dimension) with a 30kW generator. The equipment shelter must rest flush on the poured concrete foundation without showing any gaps between the equipment Shelter and pad and leveled to within ½ degree. A typical Equipment Shelter drawing is provided by in Attachment T - Shelter Layout 2 Room Shelter.

2 An approved/certified shelter manufacturer representative must be on site for each shelter delivery to supervise the setting of the shelter. This individual will correct any foundation gaps or any deficiencies found due to shipment. This individual will also supervise the installation of any field installable items (e.g. hoods, light fixtures, etc.).

3 Provision and installation of a liquid cooled, 1800 RPM, 30 kW propane fueled generator complete with a 200-Amp automatic transfer switch capable of zero cross-over (in-phase switching) and time-delay neutral switching to eliminate service interruptions of the electronic equipment and the tower lighting system. Underground fuel piping shall be

“plastic” high-performance polyethylene piping or equivalent. The above ground piping must be UV-rated rubber jacketed corrugated metallic piping. Both underground and above ground piping shall be sized so that the flow of fuel is not impeded with the system operating at full load. The transfer switch will also have a programmable exercise timer. Time delay neutral will be programmable from at least 0-3 seconds. The exercise timer will allow preprogramming of time and date of weekly generator runs. The transfer switch will allow the weekly generator runs to be conducted with or without load.

4 Purchase and install one (1) extruded metal, 24-inch wide, cantilever ice- bridge with a four tier “tee” or “tree” trapeze cable management system to facilitate easy installation and removal of cables, such as Andrew WB-T24-4 or suitable equivalent. Ice bridge posts will be no less than 3” in diameter, spaced no more than 6’ apart. Posts will be buried 36” encased in concrete. The ice bridge will be routed in accordance with the construction drawings produced in Phase 1 and electrically insulated from the tower. The trapeze sections will be no more than four (4) feet apart. The ice bridge will be bonded to the external ground bus bar.

5 Purchase and installation, per local utility standard, of an electrical backboard of steel post and Unistrut construction to include CT cabinet if required, wire trough, main disconnect, at least one (1) electric company approved meter socket with room to accommodate a minimum of three (3) additional meters.

6 Purchase and installation of two (2) 3-inch conduits, approx. 230 ft. in length from the utility power source to the power company supplied pad mounted transformer location.

7 Purchase and installation of two (2) 4-inch conduits, approx. 20 ft. in length from the power company supplied pad mounted transformer, to the Contractor supplied electrical backboard

8 Purchase and connection one (1) 3-inch conduit, per local electrical code, from the

Contractor installed backboard to the fused disconnect on the back of the shelter and from fused disconnect located on the back of the shelter into the equipment shelter’s 200-amp load center. This is approximately 120 ft. in length. Electrical work must be completed by a State of Maryland certified electrician.

9 Purchase and installation of a handhole with approx 100ft of 4inch conduit to terminate in the 12x12x10 telco box.

10 Purchase and installation of a 12x12x12 IN or larger communications cable pull box on the exterior of the shelter. The pull box will accommodate at least three (3) 4” diameter schedule

40 conduits. This box will be weatherproof and constructed of plastic or other non-conductive materials. The location of the pull box will be determined by the State TO

Manager. There is no requirement to connect this box to any underground conduits at this point. Locator tape shall be installed in all telco and electric trenches one (1) ft. above the new conduits.

11 Supplied materials, including, but not limited to, the monopole tower, ice bridge, and propane tank, etc. shall be new, unused and shall meet the latest design and fabrication standards of the Electronics Industry Association (EIA). The State may consider refurbished shelter buildings that meet these specifications.

12 All supplied materials shall be purchased, not leased.

13 The Contractor will provide placards affixed to every equipment and generator room door stating there is Electro Magnetic Energy dangers. These signs will comply with the latest version of Motorola’s R56. The Contractor shall provide aluminum placards conspicuously affixed to the equipment shelter and main gate indicating the site is alarmed and under 24 hour surveillance. The signs will read: ““No trespassing. This site is monitored by remote surveillance equipment. Equipment and entrances are alarmed and will notify local police of any intrusion.”

E. Inspection schedule/requirements

1 Sediment and Erosion Controls – A preconstruction meeting will be conducted if applicable with the required inspectors at least 7 days prior to any disturbance. Controls will be randomly inspected by the appropriate inspectors having jurisdiction (County or State), but emphasis is placed after rain events. Corrections/repairs must be made within time limits specified by County or State requirements.

2 Compaction tests – Construction inspectors will inspect each lift required for site grading, retaining wall footers, road work and fill (to include the tower foundation). Noncompliance may require the removal of fill and/or halting work.

3 Storm Water Management – To Contractor will provide evidence of the installation of Storm

Water Management materials and techniques. This is outlined in the construction drawings developed in Phase 1 and will be done at the TO contractor’s expense.

4 Cylinder break reports – The tower and shelter foundations will require PE certified crush reports at a minimum of 28 days. Tower erection or shelter installation may not occur until compressive strength is tested and verified in compliance with manufacturer and task order specification. Concrete used for the wall foundation will require tests. This will be coordinated through a private party at the TO Contractor’s expense.

5 Electrical inspection – Final wiring will be inspected prior to energizing the site. An approved third-party inspection agency can be utilized if recognized by the local utility. This will be supplied by the TO Contractor.

6 Tower Inspection – The tower’s structural integrity, galvanizing condition and assembly will be inspected by a third-party inspector furnished by DoIT.

7 R56 Inspection – the site, tower and shelter will be subject to a R56 inspection.

Discrepancies will be corrected at the TO Contractor’s expense. The inspector will be furnished by DoIT.

8 Punch-list – A final inspection will be conducted by DoIT personnel to ensure all items in the task order are completed to the satisfaction of the State.

F. Commencement of Work

Work in response to this Task Order shall be initiated only upon issuance of a fully executed Notice to Proceed, authorized by the State TO Manager.

G. Approvals

Prior to ordering the tower or shelter, the following drawings/designs shall be approved by the State TO Manager:

1. Tower profile (Final drawings will have PE stamp)

2. Tower foundation design (Final drawings will have PE stamp)

3. Shelter drawings (Final drawings will have PE stamp)

4. Foundation design (Final drawings will have PE stamp)

5. Shop drawings for LP tank foundation

6. Shop drawings for fence

H. Final Acceptance Sign-off

The TO Contractor will provide all items as outlined in Attachment W – Closeout Process Final. The following is required to be demonstrated to the State TO Manager upon project completion:

1 The State receives a satisfactory inspection report from an independent tower vendor, funded by the State to perform a tower inspection, and all deficient items identified in the inspection report have been corrected to the State’s satisfaction. The inspector will mark all deficiencies with blue, permanent paint pens. All corrections will be marked with yellow, permanent paint pens. The correction will be initialed and dated by the crew. Photos will be taken showing the correction to include the initials as proof that the correction was made. The State reserves the right to perform additional tower inspections to verify that deficient items have been corrected. Should the State require two (2) or more tower inspections to verify correction of deficient items, all costs of the additional inspections, beyond the second inspection, shall be deducted from the TO Contractor’s final payment.

2 All other deficiencies noted by the State have been corrected to the State’s satisfaction.

3 All construction materials, equipment, excess tools and other materials will be removed from the site. The shelter interior (equipment and generator room) will be swept and all protective paper removed from the floors. The site should be neat and organized.

4 If applicable final acceptance by MDE that all work has been completed in accordance with the MDE permit.

5 All warranty information pertinent to various site items such as tower, shelter, tower lighting, generator and transfer switch, etc. is supplied to the State TO Manager.