Lift Station Rehabilitation Specifications 4-2-26.pdf

DIVISION 22 – PLUMBING

Section 22 13 33 –

Packaged, Submersible Sewerage Pump Units

22 13 33-1

1.00 GENERAL

1.1 SUMMARY

A. The Contractor shall furnish and install one (1) automatic duplex grinder pump station(s) with all needed equipment installed in a prefabricated FRP basin package including wetwell and integral valve vault as shown on plan drawings. FRP basin package shall all be provided by single supplier.

1.2 DESCRIPTION OF SYSTEM

A. The principal items of equipment shall include submersible grinder pumps, slide-away couplings, guide rail system, FRP basin packages with internal piping, valves, and control panel. Pump shall be Barnes

Model XZSGV2092L or approved equal from Zolar or Liberty.

DP Flow GPM Head FT HP Voltage RPM Pump Model Manufacturer

#1

#2

2.0 3-phase 60

Hz 208-

240V

3450 XZSGV2092L

3.75” impeller

Barnes

1.3 QUALIFICATIONS

A. All equipment furnished hereunder shall be the product of one manufacturer experienced in the design and manufacture of grinder pumps designed for use in sewer collection systems. All parts shall be properly stamped for identification and location as shown in the Operation and Maintenance Manuals furnished. Nameplates giving the name of the manufacturer, the rated capacity, head speed and all other pertinent data shall be attached to each basin and pump.

B. All equipment furnished under this Specification shall be new and unused, shall be the standard product of manufacturer’s having a successful record of manufacturing and servicing the equipment and systems specified.

C. Any pump manufacturer not specified, but wishing to be Pre-Bid approved as an acceptable supplier shall submit a complete hydraulic analysis based on the design detailed in the drawings at least fifteen days prior to bid date.

D. The pumping equipment specified shall be a product of a company experienced in the design and manufacture of chopper pumps for the specific use in sewer systems.

1.4 SUBMITTALS

A. After receipt of notice to proceed, the manufacturer shall furnish the Engineer an electronic set of shop drawings of all materials required to establish compliance with the Specifications. Submittals shall include at least the following:

1. Certified shop and erection drawings showing all important details of construction and dimensions.

2. Descriptive literature, bulletins, and/or catalogs of the equipment.

3. A list of manufacturer’s recommended spare parts with the manufacturer’s current price for each item.

4. All submittal data required by the General Conditions.

22 13 33-2

5. Conditions of product warranty.

6. Complete motor data.

7. Engineering Report of Hydraulic Design.

1.5 OPERATING INSTRUCTIONS

A. Two (2) copies of an operating and maintenance manual for the pump station shall be furnished to the

Owner and a digital copy to the Engineer prior to completion. The manuals shall be prepared specifically for this installation and shall include all required cuts, drawings, equipment lists, descriptions, etc. that are required to instruct operating and maintenance personnel unfamiliar with such equipment.

B. A factory service technician or factory-trained service technician, who has complete knowledge of proper operation and maintenance, shall be provided for one (1) day onsite to instruct representatives of the

Owner and/or individual homeowners on proper operation and maintenance. If there are difficulties in the operation of the equipment due to the manufacturer’s design or fabrication, additional service shall be provided at no cost to the Owner.

2.00 PRODUCT

2.1 MATERIALS AND EQUIPMENT

A. The pumps and equipment covered by this Section are intended to be standard pumping equipment of proven ability as manufactured by reputable concerns having long experience in the production of such pumps and equipment. The pumps and equipment furnished shall be designed and constructed in accordance with the best practice and methods.

B. All parts shall be so designed and proportioned as to have liberal strength and stiffness and to be especially adapted for the work to be done. Ample room and facilities shall be provided for inspection, repairs and adjustment.

2.2 PRE-FABRICATED FRP PUMP STATION

A. FRP Basin

1. The basin and integral valve vault shall be a non-sparking fiberglass reinforced polyester resin with a 3” or larger ballast support flange. The basin shall be furnished by the pump manufacturer and be provided with one (1) inlet hub (shipped loose to facilitate field location) to accept a 4” Schedule 80 PVC inlet pipe. Basin capacities and dimensions shall be as shown on the Drawings. The basin shall have a minimum burial that ensures all piping to be below frost line or of the depth as shown on the Drawing, whichever is greater. It shall be furnished with an aluminum cover with access hatches for both the wetwell and valve vault as well as bypass pump connector in the valve vault. The cover assembly shall provide adequate means of venting the basin. Basin wall must withstand the pressure exerted by saturated soil loading at maximum bury depth. Saturated soil weight is assumed to be 120 lb./cubic foot. The basin wall and bottom will withstand 150% the anticipated maximum pressure exerted on the basin. All station components must function normally when exposed to these loadings. Basin must be Nationally Recognized Testing Laboratory (NRTL) approved to U.L. 1951.0

B. Piping

1. All pump discharge piping within the wetwell shall be Schedule 80 PVC.

22 13 33-3

2. Each basin shall be equipped with stainless steel guide rail assembly to facilitate removal of the pump(s) from ground level. A stainless steel chain shall be supplied for pump removal.

All hangers, fasteners, braces, and other such hardware shall be stainless steel.

C. Pump Construction

1. The pump end components including the volute and impeller will be ASTM A48 Class 30

Cast Iron. The volute shall be a single piece non-concentric design, with smooth passages.

The discharge connection shall be a standard 1.25-inch NPT.

2. The pump impeller shall be of the recessed vortex design. Pumps with standard centrifugal semi-open impeller designs shall not be acceptable. The impeller shall be keyed to the shaft.

Progressive cavity pumps shall not be acceptable.

3. The grinder mechanism shall be specifically designed for use in a grinder pump. The mechanism shall consist of an axial cutter that is locked for rotation by a shaft key. The cutter is fixed axially by a socket head cap screw. The cutter plate is held in place by a press fit. The entire cutting mechanism shall be recessed, protecting the mechanism. All grinding mechanism components, including both the cutter plate and radial cutter shall be constructed of 440C stainless steel hardened to a minimum Rockwell C55 and shall have a ground finish for a fine cutting edge. The grinder shall be placed immediately below the pumping elements and shall be direct-driven by a single, one-piece, stainless steel motor shaft. The grinding assembly shall operate without objectionable noise or vibration over the entire range of recommended operating pressures. The grinder shall be constructed so as to eliminate clogging and jamming under all normal operating conditions including starting. In order to demonstrate adequate flow velocity and grinding capability, the grinder pump shall be capable of passing a series of stringy type solids (diapers, rags, feminine products, etc.)

through the pump without roping or winding the material in or immediately below the pump suction. The pump shall be certified to NSF 46 standards.

4. The pump and motor shaft will be a solid, continuous piece of 416 stainless steel. Shafts utilizing a coupling or other attachment method will not be acceptable. The shaft will have a maximum allowable deflection of 0.002 inches at the lower mechanical seal during operation.

5. The mechanical seals will be a double mechanical seal system, consisting of two independent mechanical seals, each with its own single spring system acting in a common direction. The upper seal will have a silicon carbide rotating face and a silicon carbide stationary face and will be located between the seal chamber and the motor housing. The lower seal will have a silicon carbide rotating face and a silicon carbide stationary face. Both seals will have 300 series stainless steel hardware and Buna-N elastomers.

6. Seals must operate in an oil filled chamber which shall provide superior heat transfer & seal cooling. Seal faces shall be lapped and polished to a tolerance of one light band. The seals must not require routine maintenance or adjustment. The seal shall be commercially available and not a pump manufacturer’s proprietary design.

7. The common pump and motor shaft shall rotate on two bearings. These bearings shall be high quality and commercially available. The bearings shall be of the self-lubricated design, with grease for superior lubrication, cooling, and life. The pump shall be a two-bearing design consisting of an upper ball bearing carrying the thrust loads, and lower ball bearing for the purpose of carrying the thrust loads and radial loads. Sleeve bearings will not be considered equal. The lower bearing shall be of the single row ball type, locked in position to accept radial and axial thrust loads and the upper bearing shall be of the single ball type for radial loads as needed to provide a minimum L10 Life of 50,000 hours at -50% to +50% of

BEP.

8. Gaskets except for seal gland and bearing retainer shall be of the angular gland compression

O-ring type eliminating critical slip fits and the possibility of damage during service associated with sliding O-ring sealing arrangements. Mating surfaces where watertight sealing is required shall be machined and fitted with O-rings.

9. The exterior of the pump liquid end shall be coated per Article 2.04 FINISHES below.

22 13 33-4

10. The pump shall be equipped with a stainless-steel nameplate, located in an easily accessible location. The following data will be included on the nameplate:

a. Manufacturer’s Name

b. Pump Part Number, Model Number and Serial Number

c. Motor Horsepower Rating

d. Voltage, Phase, and Frequency

e. Motor Speed

f. Motor Full Load Amps

g. Ambient Temperature Rating

h. Code Letter

i. Impeller Diameter

j. Motor Insulation Class

11. Spare Parts

a. One spare full diameter impeller for each pump model

b. One spare cutter assembly set

c. All gaskets

d. All o-rings

e. Spare set of starting components (for 1 ph only)

12. Motor Components

a. The major driver components will be ASTM A48 Class 30 Cast Iron. The motor shaft shall be of 416 stainless steel.

b. The motor shall be a squirrel cage induction type and shall be dielectric oil filled for optimal thermal management and maximum bearing life. The pump shall be capable of operating in a totally, partially, or non-submerged condition for extended periods of time without damage due to heat being generated. Oil used must be able to be disposed of as nonhazardous waste. Air-filled motors shall not be acceptable. The motor shall be NEMA Type B. The stator windings shall be insulated with moisture resistant and spike resistant Class F varnish and magnet wire insulation, rated for 155°C (311°F). The motor shall be 240 volts, 3 phase, and shall have a voltage tolerance of +/- 10% from nominal voltage. The motor shall be designed to run continuously in a 40° (104°F) ambient environment.

c. Single Phase motors shall be of the capacitor start, capacitor run design. Start and run components will be provided by the pump manufacturer and shall be installed in the control panel.

d. The stator shall be pressed into the motor housing and shall be secured via bolts to the bearing retainer and lower seal chamber.

e. The motor shall have a minimum 1.0 service factor. The motor shall be designed for usage in submersible applications only. The motor horsepower shall be non-overloading of the nameplate rating throughout the entire pump performance curve. The motor shall meet the performance requirements of a NEMA L speed torque curve.

f. The rotor bars shall be die cast aluminum.

g. The motor will be capable of operating continuously at a maximum submergence depth of 66 ft (20m).

h. The motor will be capable of 11.5 starts per hour with a minimum rest time of 77 seconds between starts without overheating.

i. Motor shall be CSA Listed to the CSA 108 / UL 778 harmonized standard and to

CSA 145 / UL 674 harmonized standard for use in Class 1, Division 1 hazardous locations.

13. Sensors

a. Motors shall have built-in thermal overload protection.

22 13 33-5

b. For single phase pumps, an automatically resetting, heat sensing thermal device that interrupts current flow if excessive temperature and/or current is detected shall provide protection against excessive temperature.

c. For three phase pumps, Protection against excessive temperature shall be provided by heat sensor thermostat attached to the stator windings and connected in series with the contactor coil in the control panel.

d. The moisture sensor detection system shall consist of a dual probe system in the seal chamber. The probes shall monitor conductivity of the oil. It is recommended to use a pump monitor relay (PMR) installed inside the control panel which will trigger a warning light and shut down the pump when pumped fluid is detected.

14. Power Cord

a. The pumps shall be equipped with 75 ft. of type SOW power cord. The power and sensor cords and motor shall be connected via quick disconnect pin terminals located within the motor housing. Pin receptacles shall be molded in an elastomeric puck. The power and sensor cord cables will be connected via male receptacle pins, and potted in place. A neoprene grommet will provide strain relief, secured by a stainless-steel washer and gland nut. The plug shall be secured with a stainless-steel compression plate to prevent water from entering the motor housing at the point of cord entry. A Valox® 457, or approved equal, terminal block with brass pin inserts shall connect the power cord leads with motor leads. The ground pin shall be longer than the other pins such that the ground connection is the first connection made and the last connection broken when the plug is inserted and removed, respectively. A Buna-N O-ring shall provide isolation sealing between terminal block and the motor housing. The cord assembly shall be guaranteed by the manufacturer to meet UL approval for submersion.

b. The pumps shall be capable of being easily removed and replaced without the removal of the pump power cord from the electrical conduit.

2.3 FINISHES

A. The pump (s) shall be powder coated with an epoxy primer and polyester top coat.

2.4 ACCESSORIES

A. The pump shall be supplied with a Break Away Fitting assembly (BAF), which will allow the pump to be installed and operate continuously in a vertical submerged condition. The stationary portion of the

BAF shall be installed in the wet pit, thus removing the need for personnel to enter the wet well. The stationary portion of the BAF shall consist of a cast iron base elbow, guide rails, an upper guide bracket, and an optional intermediate guide bracket. The intermediate guide bracket is only required for depths of 13 ft (4m) or more. The cast iron base elbow shall be bolted to the wet well floor. The movable portion of the BAF shall consist of a brass, non-sparking slide, which bolts to the pump discharge flange. On all models, this slide guides the pump up and down the guide rails, and includes a gasket, which ensures a complete seal. The two guide rails must be provided by others, and should be schedule 40 metallic pipe in a non-corrosive material, such as stainless steel. These guide rails shall be attached to the base elbow at one end, and the upper guide bracket at the other. The upper guide bracket shall be attached to the underside of the wet well cover. The bracket shall have elastomer plugs, which reduce noise and rail vibration. The guide rails serve only to guide the pump, and do not carry the weight of the pump. Designs that do not use a movable gasket, use guide chain, or use a single guide rail shall not be accepted.

22 13 33-6

2.5 INSTALLATION

A. Install in accordance with manufacturer’s printed instructions (and state/municipal, and other governing standards).

1. The pump shall be capable of operating continuously in a vertical submerged condition.

2. Contractor shall complete all piping and supports, make all electrical power and control connections, and install all safety devices and instrumentation prior to equipment start-up.

3. All anchor bolts, nuts, washers, and sleeves shall be Type 316 stainless steel furnished by the contractor and shall be of ample size and strength for the purpose intended.

4. See also 2.4 ACCESSORIES above.

2.6 QUALITY CONTROL

A. Factory Tests:

1. The pump manufacturer shall perform a pump performance test to verify hydraulic performance as standard. The pump shall be completely submerged and run to determine that the unit meets three pre-determined hydraulic performance points.

2. If certified testing is required, the manufacturer shall offer to perform tests in accordance with Grades B, E, or U of Hydraulic Institute standards 11.6 and 14.6.

3. A check of the motor voltage and frequency shall be made as shown on the name plate.

4. A motor and cable insulation test for moisture content or insulation defects, in accordance with CSA criteria.

5. Each motor shall be dielectric tested to verify the motor insulation integrity.

B. Controls

1. Controls shall be provided by the pump manufacturer.

2. The installing Contractor shall install the new panel on a wall as denoted on the design drawings. The panel shall be a Barnes Stealth Duplex Wall mounted XR Series for XZSGV pumps, or approved equal. All necessary conduit from the primary power feed through the new panel and to the pump and wetwell (level sensors) shall be the responsibility of the

Contractor.

3. The control equipment shall be a Barnes duplex control panel (Represented by Gasvoda and

Associates), or approved equal.

3.00 EXECUTION

3.1 START UP SERVICES

A. The pump manufacturer shall include the cost of a field inspection trip and a startup trip of one day each.

The manufacturer shall advise in writing of any irregularities which will void warranty.

3.2 WARRANTY

A. The manufacturer shall warrant all equipment supplied for a period of one year from the date of acceptance by the Owner.

3.3 EQUIPMENT SUPPLIER

A. The equipment supplier through the installing contractor shall be responsible to provide a digital set of complete factory authentic submittal data for approval of the Engineer and the Owner prior to placing any equipment on order. The successful equipment supplier must demonstrate complete factory authorized service capability via the use of in-house service personnel and provide such service as a normal scope of his business. Further, these services must be available as a 24-hour emergency

22 13 33-7 service every day. The supplier shall visit the job site two times, at six month intervals after start up and provide a complete inspection of the equipment and a written status report.

3.4 SERVICE/WARRANTY

A. The supplier of the equipment shall demonstrate complete service capability. Supplier shall be a factory-authorized service center with a stock of replacement parts (in inventory) and a repair shop with 24-hour service at its location.

END 15 09 4

DIVISION 26 – ELECTRICAL

Section 26 05 00 – Common

Work Results for Electrical

26 05 00-1

1.01 WORK INCLUDES

A. Base Bid

1. The Contractor shall provide electrical work, complete and operable, in accordance with the Contract Documents.

2. The provisions of this section apply to all sections in Division 16, except as indicated otherwise.

3. The work of this section is required for operation of electrically-driven equipment provided under specifications in other divisions. The Contractor's attention is directed to the requirement for proper coordination of the work of this section with the work of equipment specifications and the work of instrumentation sections.

4. Concrete, excavation, backfill, and steel reinforcement required for encasement, installation, or construction of the work of the various sections of Division 16 is included as a part of the work under the respective sections, including manholes, handholes, and equipment housekeeping pads.

1.02 REFERENCE STANDARDS

A. The work of this section and all sections in Division 16 shall comply with the following as applicable:

1. NEC (NFPA 70) National Electrical Code

2. NETA International Electrical Testing Association

3. NEMA 250 Enclosure for Electrical Equipment (1000 Volts Maximum)

B. Electrical equipment shall be listed by and shall bear the label of Underwriters' Laboratories, Inc.

(UL) or an independent testing laboratory acceptable to the local code enforcement agency having jurisdiction.

C. Installation of electrical equipment and materials shall comply with OSHA Safety and Health

Standards (29 CFR 1910 and 29 CFR 1926, as applicable), state building standards, and applicable local codes and regulations.

D. Where the requirements of the specifications conflict with UL, NEMA, NFPA, or other applicable standards, the more stringent requirements shall govern.

1.03 SIGNAGE AND MARKINGS

A. Identification: Provide danger, caution, and warning signs and equipment identification markings in accordance with applicable federal and state OSHA and NEC requirements.

B. Local Disconnect Switches:

1. Each local disconnect switch for motors and equipment shall be legibly marked to indicate its purpose unless the purpose is indicated by the location and arrangement.

C. Warning Signs:

1. 600 volts nominal, or less: Entrances to rooms and other guarded locations that contain live parts shall be marked with conspicuous signs prohibiting unqualified persons to enter.

Section 26 05 00 – Common Work Results for Electrical

26 05 00-2

D. Isolating Switches: Isolating switches not interlocked with an approved circuit interrupting device shall be provided with a sign warning against opening them under load.

1.04 PERMITS AND INSPECTION

A. Permits shall be obtained and inspection fees shall be paid according to the General Conditions.

1.05 CONTRACTOR SUBMITTALS

A. Furnish submittals in accordance with Division 01.

B. Shop Drawings: Include the following:

1. Complete material lists stating manufacturer and brand name of each item or class of material.

2. Shop drawings for all grounding work not specifically indicated.

3. Front, side, rear elevations, and top views with dimensional data.

4. Location of conduit entrances and access plates.

5. Component data.

6. Connection diagrams, terminal numbers, internal wiring diagrams, conductor size, and cable numbers.

7. Method of anchoring, weight.

8. Types of materials and finish.

9. Nameplates.

10. Temperature limitations, as applicable.

11. Voltage requirement, phase, and current, as applicable.

12. Front and rear access requirements.

13. Test reports.

14. Grounding requirements.

15. Catalog cuts or photocopies of applicable pages of bulletins or brochures for mass produced, non-custom manufactured material. Catalog data sheets shall be stamped to indicate the project name, applicable

Section and paragraph, model number, and options. This information shall be marked in spaces designated for such data in the Engineer's stamp.

C. Shop drawings shall be custom prepared. Drawings or data indicating "optional" or "as required" equipment are not acceptable. Options not proposed shall be crossed out or deleted from shop drawings.

D. Owner's Manuals: Complete information in accordance with Division 01.

E. Record Drawings: The Contractor shall show invert and top elevations and routing of all concealed below-grade electrical installations. Record drawings shall be prepared, be available to the Engineer, and be submitted according to Division 01.

1.06 AREA DESIGNATIONS

A. General

1. Raceway system enclosures shall comply with Section 26 05 33 - Electrical Raceway Systems.

Electric work specifically indicated in sections within any of the Specifications shall comply with those requirements.

AREA NEMA ENCLOSURE CLASSIFICATION

1 3R 4X 7 9 12 Notes

Facility Exterior X X Wet Location

Sanitary Wet Well X X Wet Location /

26 05 00-3

Classified Space

B. Material Requirements

1. NEMA 1, 3R, and 12 enclosures shall be steel coated with ANSI 61 grey paint unless noted otherwise on plans.

2. NEMA 4X: stainless steel unless specified otherwise.

3. NEMA 7: Explosion-proof

1.07 TESTS

A. The Contractor shall be responsible for factory and field tests required by specifications in Division 16 and by the Engineer or other authorities having jurisdiction. The Contractor shall furnish necessary testing equipment and pay costs of tests, including replacement parts and labor, due to damage resulting from damaged equipment or from testing and correction of faulty installation.

B. Where test reports are indicated, proof of design test reports for mass-produced equipment shall be submitted with the shop drawings, and factory performance test reports for custom-manufactured equipment shall be submitted and be approved prior to shipment. Field test reports shall be submitted for review prior to

Substantial Completion.

C. Equipment or material that fails a test shall be removed and replaced.

1.08 CONSTRUCTION SEQUENCING

A. Continuance of existing Pump Station operation during construction is critical. Work shall be scheduled, subject to Owner's approval, to minimize any required shutdown time. The Contractor shall submit a written request, including sequence and duration of activities to be performed during any shutdown.

B. Switching, safety tagging, etc., required for equipment shutdown and power outages shall be performed by the

Contractor. In no case shall the Contractor begin any work without written authorization by the Engineer.

C. The Contractor shall visit the Site before submitting a Bid to better acquaint itself with the work of this

Contract. Lack of knowledge will not be accepted as a reason for granting extra compensation to perform the work.

2.00 PRODUCTS

2.01 GENERAL

A. Equipment and materials shall be new, shall be listed by UL, and shall bear the UL label where UL requirements apply. Equipment and materials shall be the products of experienced and reputable manufacturers in the industry. Similar items in the work shall be products of the same manufacturer. Equipment and materials shall be of industrial grade standard of construction.

B. Where a NEMA enclosure type is indicated in a non-hazardous location, the Contractor shall utilize that type of enclosure, despite the fact that certain modifications such as cutouts for control devices may negate the NEMA rating.

C. On devices indicated to display dates, the year shall be displayed as 4 digits.

2.02 MOUNTING HARDWARE

A. Miscellaneous Hardware:

1. Nuts, bolts, and washers shall be stainless steel.

2. Threaded rods for trapeze supports shall be continuous threaded, stainless steel, 3/8" dia. minimum.

3. Strut for mounting of conduits and equipment shall be stainless steel. Where contact with concrete or dissimilar metals may cause galvanic corrosion, suitable non-metallic insulators shall be utilized to prevent

26 05 00-4 such corrosion. Aluminum strut shall not be utilized for free standing support frames. Strut shall be as manufactured by Unistrut, B- Line, or equal.

4. Anchors for attaching equipment to concrete walls, floors and ceilings shall be stainless steel expansion anchors, such as "Rawl-Bolt," "Rawl-Stud" or "Lok-Bolt" as manufactured by Rawl; similar by Star, or equal. Wood plugs shall not be permitted.

5. Refer to Section 26 05 29 – Hangers and Supports for additional details.

2.03 ELECTRICAL IDENTIFICATION

A. Nameplates: Nameplates shall be fabricated from white-letter, black-face laminated plastic engraving stock, Formica type ES-1, or equal. Each shall be fastened securely, using fasteners of brass, cadmium plated steel, or stainless steel, screwed into inserts or tapped holes as required. Engraved characters shall be block style with no characters smaller than 1/8" top to bottom.

B. Conductor and Equipment Identification: Conductor identification devices shall be either imprinted plastic-coated cloth marking devices such as manufactured by Brady, Thomas & Betts, or equal, or shall be heat-shrink plastic tubing, imprinted split-sleeve markers cemented in place, or equal.

3.00 EXECUTION

3.01 GENERAL

A. Incidentals: The Contractor shall provide all materials and incidentals required for a complete and operable system, even if not required explicitly by the Specifications or the drawings. Typical incidentals are terminal lugs not furnished with vendor supplied equipment, compression connectors for cables, splices, junction and terminal boxes, and control wiring required by vendor furnished equipment to connect with other equipment indicated in the Contract Documents.

B. Field Control of Location and Arrangement: The drawings diagrammatically indicate the desired location and arrangement of conduit runs, equipment, and other items. Exact locations shall be determined by the Contractor in the field based on the physical size and arrangement of equipment, finished elevations, and other obstructions. Locations on the drawings, however, shall be followed as closely as possible.

1. Where "home runs" are shown, the Contractor shall route the conduits in accordance with the indicated installation requirements. Routings shall be exposed or encased as indicated, except that conduit in finished areas shall be concealed unless specifically indicated otherwise. Conduits encased in a slab shall be sized for conduit OD to not exceed one-third of the slab thickness and be laid out and spaced to not impede concrete flow.

2. Conduit and equipment shall be installed in such a manner as to avoid all obstructions. Where the drawings do not indicate exact locations, such locations shall be determined by the Engineer. If equipment is installed without instruction and must be moved, it shall be moved without additional cost to the Owner.

3. Wherever conduits and wiring for power circuits, lighting and receptacles are not indicated, it shall be the

Contractor's responsibility to provide required conduits and wiring, based on the actual installed fixture layout and the circuit designations as indicated. Wiring shall be #12 AWG minimum, conduits shall be

3/4" minimum (exposed) and 1" minimum (encased). When circuits are combined in the same raceway, the Contractor shall derate conductor ampacities in accordance with NEC requirements.

C. Workmanship: Materials and equipment shall be installed in strict accordance with printed recommendations of the manufacturer. Installation shall be accomplished by workers skilled in the work. Installation shall be coordinated in the field with other trades to avoid interferences.

Protection of Equipment and Materials: The Contractor shall fully protect materials and equipment against damage from any cause. Materials and equipment, both in storage and during construction, shall be covered in such a manner that no finished surfaces will be damaged, marred, or splattered with water, foam, plaster, or paint. Moving parts shall be kept clean and dry. The Contractor shall replace or refinish damaged materials or equipment, including faceplates of panels and switchboard sections as part of the work.

26 05 00-5

3.02 CORE DRILLING

A. The Contractor shall perform core drilling required for installation of raceways through concrete walls and floors. Locations of floor penetrations, as may be required, shall be based on field conditions. Verify all exact core drilling locations based on equipment actually furnished as well as exact field placement. To the extent possible, identify the existence and locations of encased raceways and other piping in existing walls and floors with the Owner prior to any core drilling activities. Damage to any encased conduits, wiring, and piping shall be repaired as part of the work. Conduit penetrations to stormwater wet well and field wiring manholes shall be adequately sealed with mechanical Link Seal or equivalent.

3.03 CONCRETE HOUSEKEEPING PADS

A. Concrete housekeeping pads shall be provided for indoor floor standing electrical equipment. Housekeeping pads for equipment, including future units, shall be 4" above surrounding finished floor or grade and 2" larger in both dimensions than the equipment, unless otherwise indicated.

B. Concrete housekeeping curbs shall be provided for conduit stub-ups in indoor locations that are not concealed by equipment enclosures. Such curbing shall be 3" above finished floor or grade.

3.04 EQUIPMENT ANCHORING

A. Floor supported, wall, or ceiling hung equipment and conductors shall be anchored in place by methods that will meet seismic requirements in the area where the project is located. Wall-mounted panels that weigh more than 500 lbs. or that are within 18" of the floor shall be provided with fabricated steel support pedestals. If the supported equipment is a panel or cabinet enclosed within removable side plates, it shall match supported equipment in physical appearance and dimensions. Transformers hung from 4" stud walls and weighing more than 300 lbs. shall have auxiliary floor supports.

B. Leveling channels anchored to the concrete pad shall be provided for switchgear and pad-mounted transformer installations.

C. Anchoring methods and leveling criteria in the printed recommendations of the equipment manufacturers are a part of the work of this Contract. Such recommendations shall be submitted as shop drawings under Section 01

30 00 - Submittals.

3.05 EQUIPMENT IDENTIFICATION

A. Equipment and devices shall be identified as follows:

1. Nameplates shall be provided for panel boards, control and instrumentation panels, starters, switches, and pushbutton stations. In addition to nameplates, control devices shall be equipped with standard collar-type legend plates.

2. Control devices within enclosures shall be identified as indicated. Identification shall be similar to the subparagraph above.

3. Toggle switches which control loads out of sight of switch and multi-switch locations of more than 2 switches shall have suitable inscribed finish plates.

4. Equipment names and tag numbers, where indicated on the drawings, shall be utilized on nameplates.

5. The Contractor shall furnish typewritten circuit directories for panel boards; circuit directory shall accurately reflect the outlets connected to each circuit.

26 05 00-6

3.06 CLEANING

A. Before final acceptance, the electrical work shall be thoroughly cleaned. Exposed parts shall be thoroughly cleaned of cement, plaster, and other materials. Oil and grease spots shall be removed with a non-flammable cleaning solvent. Such surfaces shall be carefully wiped and cracks and corners scraped out. Touch-up paint shall be applied to scratches on panels and cabinets. Electrical cabinets or enclosures shall be vacuum-cleaned.

END 26 05 00.

Section 26 05 19 – Wires and Cables

26 05 19-1

A. Base Bid

1. The Contractor shall provide wires and cable, complete and operable, in accordance with the

Contract Documents.

1.02 CONTRACTOR SUBMITTALS

A. The Contractor shall submit shop drawings in accordance with Division 01 and Section 26 05 00 -

Electrical Requirements.

A. Conductors, include grounding conductors, shall be copper. Aluminum conductor wire and cable will not be permitted. Insulation shall bear UL label, the manufacturer's trademark, and identify the type, voltage, and conductor size. All conductors except flexible cords and cables, fixture wires, and conductors that form an integral part of equipment such as motors and controllers shall conform to the requirements of Article 310 of the National Electric Code, latest edition, for current carrying capacity. Flexible cords and cables shall conform to Article 400, and fixture wires shall conform to

Article 402. Wiring shall have wire markers at each end.

2.02 POWER AND LIGHTING WIRE

A. Wire rated for 600 volts in duct or conduit for all power and lighting circuits shall be Class B Type

XHHW cross-linked polyethylene conforming to UL-44 - UL Standard for Thermoset-Insulated

Wires and Cables. THHN/THWN for all wires smaller than or equal to No. 4 AWG; XHHW insulation for all wires larger than

No. 4 AWG.

B. Conductors for feeders as defined in Article 100 of the NEC shall be sized to prevent a voltage drop exceeding 3% at the farthest outlet of power, heating, and lighting loads, or combinations of such loads, and where the maximum total voltage drop on both feeders and branch circuits to the farthest connected load does not exceed 5%.

C. Conductors for branch circuits as defined in Article 100 of the NEC, shall be sized to prevent voltage drop exceeding 3% at the farthest connected load or combinations of such loads and where the maximum total voltage drop on both feeders and branch circuits to the farthest connected load does not exceed 5%.

D. Wiring for 600 volt class power and lighting shall be as manufactured by General Cable, Okonite, or Rome

Cable.

2.03 CONTROL WIRE

A. Control wire in duct or conduit shall be the same type as power and lighting wire indicated above.

B. Control wiring shall be No.14 AWG.

C. Control wires at panels and cabinets shall be machine tool grade type MTW, UL approved, rated for 90 C.

at dry locations, and be as manufactured by American, Carol Cable, or equal.

26 05 19-2

2.04 INSTRUMENTATION CABLE

A. Instrumentation cable shall be rated at 300 volts.

B. Instrumentation cables shall be composed of two 18 gauge stranded tinned copper conductors, 0.19” thick polyethylene insulation, an aluminum polyester foil outer shield, a No. 20 AWG stranded tinned copper drain wire, and a pvc outer jacket with a thickness of 0.028".

C. Manufacturer and model number: Belden 8760, or equal.

2.05 CABLE TERMINATIONS

A. Compression connectors shall be Burndy "Hi Lug", Thomas & Betts "Sta-Kon,", or equal. Threaded connectors shall be split bolt type of high strength copper alloy. Pressure type, twist-on connectors will not be acceptable.

B. Pre-insulated fork tongue lugs shall be Thomas & Betts, Burndy, or equal.

C. General purpose insulating tape shall be Scotch No. 33, Plymouth "Slip-knot", or equal. High temperature tape shall be polyvinyl as manufactured by Plymouth, 3M, or equal.

D. Labels for coding 600 volt wiring shall be computer printable or pre-printed, self-laminating, self-sticking, as manufactured by W.H. Brady, 3M, or equal.

A. The Contractor shall provide and terminate all conductors except where indicated.

3.02 INSTALLATION

A. Conductors shall not be pulled into raceway until raceway has been cleared of moisture and debris.

B. Pulling tensions on raceway cables shall be within the limits recommended by the cable manufacturer. Wire pulling lubricant, where needed, shall be UL approved.

C. Instrumentation cables shall not be run in the same raceway with power and control wiring except where specifically indicated.

D. Wire in panels, cabinets, and wire ways shall be neatly grouped using nylon tie straps and shall be fanned out to terminals.

3.03 SPLICES AND TERMINATIONS

A. General:

1. Wire taps and splices shall be properly taped and insulated according to their respective classes.

2. In general, there shall be no cable splices in underground manholes or pull boxes. If splices are necessary, the cables shall be brought aboveground and terminated in a NEMA 4X, stainless steel terminal or splice cabinet on a concrete pad. Splices in underground manholes and pull boxes may be made only with the approval of the Engineer.

3. Stranded conductors shall be terminated directly on equipment box lugs making sure that all conductor strands are confined within lugs. Use forked-tongue lugs where equipment box lugs have not been provided.

4. Excess control and instrumentation wire shall be properly taped and terminated as spares.

B. Control Wire and Cable:

1. Control conductors shall be spliced or terminated only at the locations indicated and only on terminal strips

26 05 19-3

2. or terminal lugs of vendor furnished equipment.

3. In junction boxes, motor control centers, and control panels, control wire and spare wire shall be terminated to terminal strips.

C. Instrumentation Wire and Cable:

1. Shielded instrumentation cables shall be grounded at one end only, preferably the receiving end on a 4-20 mA system.

2. Two- and three-conductor shielded cables installed in conduit runs which exceed available standard cable lengths may be spliced in pull boxes. Such cable runs shall have only one splice per conductor.

D. Power Wire and Cable:

1. All 120/208-volt, 120/240-volt, and 480/277-volt branch circuit conductors may be spliced in suitable fittings at locations determined by the Contractor.

2. Splices to motor leads in motor terminal boxes shall be wrapped with mastic material to form a mold and then shall be taped with a minimum of 2 layers of varnished cambric tape overtaped with a minimum of 2 layers of high temperature tape.

3.04 CABLE IDENTIFICATION

A. General: Wires and cables shall be identified for proper control of circuits and equipment and to reduce maintenance effort. Identification shall appear within 3" of conductor terminals and at each pull or junction box.

B. Identification Numbers: The Contractor shall assign to each control and instrumentation wire and cable a unique identification number. Numbers shall be assigned to all conductors having common terminals and shall be shown on "as built" drawings. "Control Conductor" shall be defined as any conductor used for alarm, annunciator, or signal purposes.

1. Multiconductor cable shall be assigned a number which shall be attached to the cable at intermediate pull boxes and at stub-up locations beneath free-standing equipment. It is expected that the cable number shall form a part of the individual wire number. Individual control conductors and instrumentation cable shall be identified at pull points as described above. The instrumentation cable numbers shall incorporate the loop numbers assigned in the Contract Documents.

2. All 120/208-volt conductors shall be color coded as follows: Phase A - black, Phase B - red, Phase C -blue, and Neutral - white.

3. All 120/240-volt system conductors shall be color coded as follows: Line 1 - Black, Line 2 - Red, and

Neutral - White.

4. All 480/277- volt system conductors shall be color coded as follows: Phase A - Brown, Phase B - Orange, Phase C - Yellow, and Neutral - Gray.

5. Color coding tape shall be used where colored insulation is not available. Branch circuit switch shall be yellow. Insulated ground wire shall be green, and neutral shall be gray. Color coding and phasing shall be consistent throughout the Site, but bars at panelboards, switchboards, and motor control centers shall be connected Phase A-B-C, top to bottom, or left to right, facing connecting lugs.

6. General purpose AC control cables shall be red. General purpose DC control cables shall be blue.

7. Spare cable shall be terminated on terminal screws and shall be identified with a unique number as well as with destination.

8. Terminal strips shall be identified by computer printable, cloth, self-sticking marker strips attached under the terminal strip.

26 05 19-4

3.05 TESTING

A. Cable Assembly and Testing: Cable assembly and testing shall comply with applicable requirements of ICEA

Publication No. S-68-516 - Ethylene-Propylene-Rubber Insulated Wire and Cable for the Transmission and

Distribution of Electrical Energy. Factory test results shall be submitted with the shop drawings. The following field tests shall be the minimum requirements:

1. Power cable rated at 600 volts shall be tested for insulation resistance between phases and from each phase to a ground using a megohmeter.

2. Field testing shall be done after cables are installed in the raceways.

3. Field tests results shall be submitted to the Engineer for review and acceptance.

4. Cables failing the tests shall be replaced with a new cable or be repaired. Repair methods shall be as recommended by the cable manufacturer and shall be performed by persons certified by the industry.

B. Continuity Test: Control and instrumentation cables shall be tested for continuity, polarity, undesirable ground, and origination. Such tests shall be performed after installation and prior to placing cables in service.

END 26 05 19.

Section 26 05 26 – Grounding

26 05 00-1

A. The Contractor shall provide the electrical grounding system, complete and operable, in accordance with the Contract Documents.

B. The requirements of Section 26 05 00 - Electrical Requirements apply to this section.

C. Single Manufacturer: Like products shall be the end product of one manufacturer in order to achieve standardization of appearance, operation, maintenance, spare parts and manufacturer's services.

A. Furnish submittals in accordance with Division 01 and Section 26 05 00 - Electrical Requirements.

B. Shop Drawings: Manufacturer's product information for connections, clamps, and grounding system components, showing compliance with the requirements of this section.

A. Components of the grounding electrode system shall be manufactured in accordance with ANSI/UL

467 - Standard for Safety Grounding and Bonding Equipment, and shall conform to the applicable requirements of National Electrical Code Article 250 and local codes.

2.02 GROUNDING SYSTEM

A. Grounding loop conductors shall be bare annealed copper conductors suitable for direct burial.

Conductors shall be No. 2/0 unless indicated otherwise.

B. Ground Rods:

1. Unless indicated otherwise, the ground rod shall be a minimum of 3/4" in diameter, 10' long, and have a uniform covering of electrolytic copper metallically bonded to a rigid steel core. The copper to steel bond shall be corrosion resistant.

2. Conform to ANSI/UL 467.

3. Sectional type joined by threaded copper alloy couplings.

C. Buried cable-to-cable and cable-to-ground rod connections shall be made using exothermic welds by

Cadweld, Enrico Products, or equal.

D. Exposed grounding connectors shall be of the compression type (connector to cable), made of high copper alloy, and be manufactured specifically for the particular grounding application. The connectors shall be

Burndy, O.Z. Gedney, or equal.

E. Grounding clamps shall be used to bond each separately derived system to the grounding electrode conductors.

F. Equipment Grounding Circuit Conductors:

1. These conductors shall be the same type and insulation as the load circuit conductors. The minimum size shall be as outlined in Table 250.122 of the National Electrical Code, unless indicated otherwise.

2. Metallic conduit systems shall have equipment grounding wires as well as being equipment grounding conductors themselves.

26 05 00-2

G. Manufacturers of grounding materials shall be Copperweld, Blackburn, Burndy, or equal.

3.01 GROUNDING

A. Provide a separate grounding conductor, securely grounded in each raceway independent of raceway material.

B. Provide a separate grounding conductor for each motor and connect at motor box. Do not use bolts securing motor box to frame or cover for grounding connectors.

C. Size as given on the conduit schedule and in accordance with the NEC-Article 250.

D. Route conductors inside raceway.

E. Provide a grounding type bushing for secondary feeder conduits which originate from the secondary section of each MCC section, switchboard, or panelboard.

F. Individually bond these raceways to the ground bus in the secondary section.

G. Provide a green insulated wire as grounding jumper from the ground screw to a box grounding screw and, for grounding type devices, to equipment grounding conductor.

H. Measure ground impedance in accordance with IEEE STD 81 after installation but before connecting the electrode to the remaining grounding system.

I. Low Voltage Grounded System (600V or less): A low voltage grounded system is a system where the local power supply is a transformer with the transformer secondary grounded.

1. Grounding system connections for a premises wired system supplied by a grounded AC service shall have a grounding electrode connector connected to the grounded service conductor at each service, in accordance with the NEC.

2. The grounded circuit conductor shall not be used for grounding non-current carrying parts of equipment, raceways, and other enclosures except where specifically listed and permitted by the NEC.

J. Embedded Ground Connections:

1. Underground and grounding connections embedded in concrete shall be UL listed compression type ground grid connectors.

2. The connection shall be made in accordance with the manufacturer's instructions.

3. The Contractor shall not conceal or cover any ground connections until the Engineer or authorized representative has established that every grounding connection conforms to the Contract Documents and has given the Contractor written confirmation.

K. Ground Ring:

1. Furnish trenching and materials necessary to install the ground ring as indicated.

2. Bonding conductor shall be in direct contact with the earth and be of the size indicated.

3. Minimum burial depth 36" or as indicated on the drawings, whichever is greater.

4. Re-compact disturbed soils to original density in 6" layers.

L. Ground Rods:

1. Locations shall be as indicated.

2. Rods forming an individual ground array shall be equal in length.

M. Shield Grounding:

26 05 00-3

1. Shielded instrumentation cable shall have its shield grounded at one end only unless shop drawings indicate the shield will be grounded at both ends.

2. The grounding point shall be at the control panel or otherwise at the receiving end of the signal carried by the cable.

3. Termination of shield drain wire shall be on its own terminal screw.

4. Terminal screws shall be jumpered together using manufactured terminal block jumpers.

5. Connection to the ground bus shall be via a green No. 12 conductor to the main ground bus for the panel.

END 26 05 26.

Section 26 05 33 – Electrical

Raceway Systems

26 05 33-1

A. The Contractor shall provide electrical raceway systems, complete and in place, in accordance with the Contract Documents.

A. Furnish submittals in accordance with Division 01, and Section 26 05 00 -…