Attachment Q - Technical Specifications_New Germany.pdf

ATTACHMENT Q

NEW GERMANY COMMUNICATIONS FACILITY

TECHNICAL SPECIFICATIONS

1. SUMMARY

This task order is for the design, purchase and turnkey installation of the underlisted items for the State of Maryland:

one (1) 330-foot self-supporting tower one (1) 12x38 ft. concrete equipment/generator shelter foundation one (1) 12x38x10-foot two room equipment shelter containing a 75kW backup generator one (1) 1000 gallon propane tank and concrete foundation

The project location is:

NEW GERMANY STATE FOREST COMMUNICATIONS FACILITY

Near the intersection of Otto Lane and West Shale Rd, Grantsville, MD, Garrett County

Grid Coordinates: Latitude: 39-37-38.23, Longitude: W79-09-06.75

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

Sabre Towers www.sabreindustriesinc.com

Cellxion www.cellxion.com

Cell Site Solutions https://cellsitesolutions.com/

Fibrebond www.fibrebond.com

Thermobond www.thermobond.com

Virginia Fiberglass Products (VFP) www.vfpinc.com

2. TORFP Specifications

Phase 1

In Phase 1 of the project the TO Contractor shall be responsible for the following Scope of Work

a. Prepare initial permitting and zoning analysis to determine the zoning and permitting process requirements and accompanying time frames, if required.

b. Coordinate zoning and permitting of the new greenfield site such that it is in full compliance with applicable jurisdictional requirements, if required.

c. Prepare, submit and track application for local permit fees (zoning, electrical, building etc.), prepare FAA filings and procure information necessary for filing.

d. Obtain the permits such as electrical, building, and construction permits, and coordinate any inspections with local authorities that may be needed to complete site development work.

e. Prepare site construction drawings showing the layout of various new and existing site components to be used in Phase 2 of the project.

f. Conduct site walks to collect pertinent information from the sites (e.g., location of Telco, power, existing facilities, etc.).

g. Perform a site and topographic survey for the property on which the communication site is located or will be located and includes 2C/1A and 7.5’ quadrangle map for FAA.

Include meets and bounds to confirm property owner and location is within State of Maryland owned property.

h. Prepare a lease exhibit, sketch of the site to communicate to the property owner the proposed lease space, and planned development at the site location.

i. Prepare zoning drawings that can be used to describe the proposed site installation in sufficient detail.

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

j. Conduct a flood plain analysis of the site location.

k. Perform an ASTM E 1527-05 certified Phase I Environmental Site Assessment (ESA), to identify obvious and reasonably likely on-site and/or off-site potential sources of contamination that might pose a potential risk of leasing and building on a piece of property, and whether further environmental investigations are warranted. This study does not include Phase II assessments, risk/cost evaluations, and permitting assistance that may be required if risk factors are indicated. (If required)

l. Prepare photo renderings of how a specific site or sites would look after completion.

m. Conduct a balloon test to prepare site line graphs showing potential visibility of the proposed communication site.

n. Perform NEPA Threshold Screening, including limited literature and records search and brief reporting, as necessary to identify sensitive natural and cultural features referenced in 47 CFR Chapter 1, subsection 1.1307 that may potentially be impacted by the proposed construction activity. This does not include the additional field investigations to document site conditions if it is determined that the proposed communication facility “may have a significant environmental impact” and thus require additional documentation, submittals, or work. Regional Environmental Review (RER) report submittals if required by FEMA have not been included. Perform Cultural Resource study as needed to identify sensitive historical and archaeological monuments that might be impacted by proposed construction. (Does not include tribal or advertising fees)

o. Provide Third Party Tower Inspection after construction of tower

p. Provide Third Party UG Utility Investigation. This should include appropriate passes of

Ground Penetrating Radar (GPR) to investigate any unknown or unmarked utilities such as sewer lines. Any non-conductive utilities such as sewer lines should be rodded and appropriately located. Location should be documented and incorporated in construction drawings.

q. Provide FCC compliance report for zoning/planning.

r. FAA Filing (Air Space Analysis, FAA 7460-1; FCC ASR Notifications, FAA 7460-2 Part 1; FCC

Notification, FAA 7460-2 Part 2; FRN Application; Local Publication)

s. Provide Tribal Consultation Fees (Allowance included and Cultural Resource Report)

t. Provided licensed engineer for zoning and planning board attendance for new tower sites. (Up to two meetings)

u. Perform expedited services for Storm Water Management/Erosion & sediment control plans (MDE) including review & permitting

v. Infiltration test for Storm Water Management facility.

w. Provide a Final Report document that presents all results and information produced in

Phase 1.

Phase 2

In Phase 2 of the project 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 and the approval of deliverables of Phase 1and upon Notification to Proceed with Phase 2:

A. Site Preparation Work

1. Locating of 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.

2. The TO Contractor shall follow the approved sequence of constructions as depicted in the construction drawings produced in Phase 1. Any deviations must be approved by the County or MDE, as required.

3. 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. in the context of DNR projects and meeting MD Dept of the Environment requirements. TO Contractors without green and yellow cards must use approved subcontractors to install and maintain soil and erosion controls for those who have these certificates.

4. 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.

5. 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.

6. The TO Contractor will clear, grade, survey and mark the Limits of Disturbance (LOD) in accordance with construction drawings produced in Phase 1.

7. 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 the Construction Drawings developed in Phase 1.

- 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 green and yellow card.

8. 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 produced in Phase 1.

9. 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.

10. Construct the tower foundation per tower manufacturer’s specifications, based on the deliverables of Phase 1.

11. Construct one (1) 12x38ft. 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.

12. Construct one (1) 4x20ft. 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.

13. 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

14. Upon completion of tower, shelter and site improvements, the TO Contractor will furnish and install surface materials in accordance with the Construction Drawings developed in Phase 1.

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

15. The TO Contractor shall install an eight (8) ft. high-galvanized chain link fence with two (2) feet of barbed wire on top, with a twenty (20) ft. wide, double leaf vehicle gate; and one (1) five (5) foot man gate around the site (includes tower, equipment shelter) as shown on Construction Drawings developed in Phase 1. 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 solid steel leg constructed, self-supporting, 330-ft 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 tower and shelter shall be coordinated by the TO Contractor with the State TO Manager.

3. The 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 attached 330-ft State Tower loading plan (see TORFP Attachment S- Typical 330-ft State Tower Loading Plan). The tower and associated installation shall conform to all local, County, State and Federal Equipment Shelter codes. The TO Contractor shall be responsible for obtaining Federal Aviation Administration (FAA) approval and permits as part of Phase 1. The tower will be designed with the following 222-I design criteria:

Three second wind gust 90 MPH Three second wind gust concurrent with radial ice 40 MPH Concurrent radial ice ¾ inch Structure classification III Exposure category C Topographic category 3 Crest Height 2,880 ft

4. The bottom 20 feet (minimum) of the tower shall have K-bracing construction to allow for ingress and egress under the tower. The top 60 ft. (minimum) of the tower shall contain no slope.

5. Spacing between tower legs shall not exceed 40 ft. Pad and pier, caissons, driven pile or rock anchor foundations are acceptable designs if the proposed design is approved by the tower manufacturer. Suitable documentation from the tower manufacturer will be supplied to confirm their approval.

6. Proper and thorough grounding and bonding methods in accordance with currently published Motorola R56 standards shall be employed to provide maximum lightning protection.

7. The TO Contractor shall use soil borings report provided in Attachment V – Geotechnical Report 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.

8. Step bolts on at least one leg, 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. Step bolt mounts will be permanently attached to the side of the climbing leg instead of the face/apex of the climbing leg. 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.

9. The tower will be designed to accommodate two (2)” State” cable ladders (supplied by the TO Contractor) and one (1) “Cellular” cable ladder (supplied by others). The “State” cable ladders will be designed in accordance with the Tower Layout (Attachment U). The “State” cable ladders will be a “rail” configuration with cable ladder side rails and rungs to accommodate at least fifteen (15) ¾ IN snap-ins and be at least three (3) FT wide. If the cable ladders are required to meet, a single ladder will extend to the top of the tower. The single cable ladder will accommodate at least fifteen (15) ¾ IN snap-ins and be at least three (3) FT wide. The project manager will determine where the two cable ladders meet and transition to the single cable ladder. The cable ladders will be mounted on the same face and the outside edge of the tower.

The ladders will each originate on opposite outer edges of the face of the tower. They will originate approximately one foot from the leg of the tower and will remain one foot from the edge of the tower. One foot edge spacing will be maintained to the point where both cable ladders meet. From that point, a single cable ladder will extend, centered on the face, to the top of the tower. Cable ladders will not be positioned back-to-back. The “Cellular” cable ladder will be designed in accordance with the Tower layout (Attachment U). The cellular cable ladder will be a “rail” configuration with cable ladder side rails and rungs to accommodate at least fifteen

(15) ¾ in. snap-ins and be at least three (3) ft. wide and will extend the full height of the tower.

The feed lines will be arranged in accordance with the Tower Loading Plan (Attachment S). Feed Lines heights will terminate at its corresponding antenna on the Tower Loading Plan. The tower will be designed in compliance with the state loading plan, the above configuration and all other applicable sections of this task order. The Design will ensure all cable ladders are considered.

However, only one (1) cable ladder will be furnished and installed for each equipment shelter that is provided.

10. 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).

11. 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.

12. 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 subbase will be tested and ensured compliant with the tower foundation design. The contractor will protect the subbase appropriately from water infiltration until concrete is poured. In the event, the subbase is not adequately protected then the State project manager may request the retesting and remediation at the contractor’s cost.

13. Non-chloride, non-corrosive concrete set accelerate may be utilized in compliance with ASTM-C- 494 type C and ACI-318.

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

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

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

17. Crown top of piers for drainage and chamfer all exposed concrete edges 1”.

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

19. The TO Contractor shall purchase and install tower lighting equipment on the 330’ tower (Total finished height of the tower including all appurtenances will be 348 ft.) as per FAA Advisory Circular AC70/7460-1-G or latest revision according to the following specifications:

i. The TO Contractor shall use tower lighting manufacturer trained and certified personnel to install tower lighting equipment on the 330’ tower.

ii. The side markers shall be installed using manufacturer approved mounting materials.

iii. The tower lighting system shall be an all-LED system by Flash Technology Systems (http://www.flashtechnology.com/) (Part # FTS370d LED SMART IR with NVG compatibility using infrared “IR” LEDs) or approved equivalent and manufactured to specifications for FAA type L-864/ L-865 and FAA-AC 150/5345- 43E.

iv. The TO Contractor shall install a dual, medium-intensity Type E-1 LED system that provides white flashing LEDs for day operation and red flashing LEDs ( with IR LEDs) for night operation as per FAA requirements. The L-810 side markers will also utilize NVG-compatible LED technology. A 18’ beacon extension assembly, with safety climb, shall be installed with flash head and lightning rod mounts and step bolts spaced alternately at approximately 15” intervals from the tower flange to the beacon. The beacon extension will be anchored to one tower leg. The beacon extension can be solid like the other legs on the tower or hollow, but no less than 4 ½” outside diameter and ¼ “wall thickness. The design must be approved by the State TO Manager prior to shipment. The beacon extension will be man rated and allow for the proper maintenance of the top strobe.

v. The lightning rod will extend at least 4’ above the top of the beacon. No part of the lightning rod or mount that obstructs the beacon will be larger than 7/8” in diameter.

vi. The tower lighting system shall be supplied with remote and onsite diagnostics capabilities including software and direct connect cable.

vii. TO Contractor will supply temporary power to the lighting controller until permanent power is supplied. This will include all materials and labor to install temporary power and may include the use of a portable generator or a utility approved metering device, means of disconnect and receptacles. Delays in permanent power will be evaluated on a case-by-case basis, and solutions will be directed by the State TO Manager. Typically, the state will apply for temporary service from the utility, and the Contractor can supply the appropriate temporary backboard and its removal when complete.

viii. The supplied tower lighting system shall include 5-year parts warranty.

ix. The lighting controller will be bonded to the internal halo inside the generator room.

C. Equipment Shelter Specifications -12’ x38’ x10’ 2- Room Shelter with 75 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 a 75 Kw natural gas fueled generator, 400-amp integrated load center, such as a Transtector ISP Series, 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’x38’x10’ (height is inside dimension) and configured with two rooms as depicted in the construction drawings developed in Phase 1.

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 50kW 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 50 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 construction drawings developed in Phase 1.

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 loading design will be 500lbs. per square foot in the equipment room.

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 construction drawings developed in Phase 1.

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 construction drawings developed in Phase 1.

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 400-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 400-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 3-16. 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. Type III Lighting Controller Surge Suppressor Alarm

21. Strobe White Alarm (per strobe controller)

22. Strobe Red Alarm (per strobe controller)

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 construction drawings developed in Phase 1.

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 75-kilowatt, liquid cooled, LP gas fueled, 1800-RPM generator, 60 Hz, 120 / 240 volt, single phase with a 400-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 normally open 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) 12x38x10 ft. concrete equipment two (2) room shelter (height is inside dimension) with a 75kW 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, 75 kW LP fueled generator complete with a 400-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 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.

5 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.

6 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.

7 Purchase and installation of two (2) 4-inch conduits, approx. 200 ft. in length from the utility power source to the power company supplied pad mounted transformer location.

8 Purchase and installation of two (2) 4-inch conduits, approx. 60 ft. in length from the power company supplied pad mounted transformer, to the Contractor supplied electrical backboard, and from the backboard into the disconnect switch, located on the back of the equipment shelter.

9 Purchase and connection of electrical wiring, 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 400-amp load center.

Electrical work must be completed by a State of Maryland certified electrician.

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 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 shall supply and install 6” dia. bollards as needed in accordance with the deliverables of Phase 1.

14 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.” A 7”x5” aluminum placard shall be affixed to the side of the equipment shelter, 5’ above ground level, directly above the point at which the gas pipe enters the equipment shelter, that reads:

“WARNING – Underground Gas Line” (Text shall be a black, bold font on a yellow background).

Additionally, a 12”x2” placard shall be attached to the main gate that reads: “For tower site information call: 1-410-697-9757”.

E. Inspection schedule/requirements

1 Sediment and Erosion Controls – A…