SECTION BASIC ELECTRICAL MATERIALS AND METHODS. A. This Section includes basic electrical materials and methods including:

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1 SECTION BASIC ELECTRICAL MATERIALS AND METHODS PART 1 - GENERAL 1.01 SUMMARY A. This Section includes basic electrical materials and methods including: 1. Conduit, fittings and accessories. 2. Wire, cable, connectors and markers. 3. Boxes. 4. Wiring devices. 5. Supporting devices. B. Related Work: 1. Section Trenching and Backfilling for Utilities 2. Section Service and Distribution C. References: 1. American National Standards Institute (ANSI): a. ANSl C Specification for Rigid Steel Conduit, Zinc-Coated. b. ANSl C Fittings for Rigid Metal Conduit and Electrical Metallic Tubing. 2. Federal Specifications (FS): a. FS W-C-586B - PVC Coated Electrical Cast Metal Conduit Outlet Boxes, and Bodies b. FS W-F Fittings for Cable, Power, Electrical and Conduit, Metal, Flexible. 3. National Electrical Manufacturers Association (NEMA): a. NEMA FB 1 - Fittings and Supports for Conduit and Cable Assemblies. b. NEMA RN 1 - Polyvinyl Chloride (PVC) Externally Coated Galvanized Rigid Steel Conduit and Intermediate Metal Conduit. c. NEMA WC 5 - Specific Purpose Wiring. 4. Underwriter's Laboratories, Inc.(UL): 1.02 SUBMITTALS a. UL 1 - Flexible Metal Electrical Conduit. b. UL 6 - Rigid Metal Electrical Conduit. c. UL 486A - Wire Connectors and Soldering Lugs for Use with Copper Wire. A. Submit manufacturer's product data sheets verifying compliance with specified requirements QUALITY ASSURANCE A. Where Underwriter's Laboratories, Inc. has established standards for specified products, provide only products bearing the UL label. B. Comply with NEC requirements as applicable for work of this Section.

2 PART 2 - PRODUCTS 2.01 CONDUIT, FITTINGS AND ACCESSORIES A. Design Requirements: 1. UL listed and labeled conduit, on each length, fittings and accessories. 2. Type and sizes of conduit, fittings and accessories as indicated, specified, or as required by Electrical Codes and Standards. B. Metal Conduit: 1. Rigid steel, threaded type, zinc-coated inside and outside, conforming to ANSl C80.1, FS WW- C-581 and UL Fittings and Conduit Bodies: a. Conform with ANSl C80.4, FS W-F-408 and NEMA FB 1. b. Cast malleable iron, threaded or gland compression type, galvanized or cadmium plated. Compression type may be used only in non-hazardous areas and where necessary to avoid a union. c. Insulating or insulated throat type bushings. d. Steel or malleable iron lock nuts. C. Liquid-Tight Flexible Metal Conduit: 1. Interlocked steel construction with PVC jacket conforming with FS WW-C-566 and UL 1. Rated for outdoor service. 2. Fittings and Conduit Bodies: a. Conform with FS W-F-406. e. Cadmium plated, malleable iron fittings with compression type steel ferrule, neoprene gasketed sealing rings and insulated throat. D. Rigid Nonmetallic Conduit: 1. Schedule 40 PVC conforming with NEMA TC2, Type 3 and FS W-C-1094, for direct burial and normal above-ground duty. 2. Fittings and Conduit Bodies: NEMA TC3, solvent weld type, match to conduit type and material WIRES, CABLES AND ACCESSORIES A. Control and Power Cable: 1. Sizes and types as indicated on the drawings. 2. Single conductor cables 120 volt and above: a. Thermoplastic insulated wire conforming to NEMA WC 5. b. Feeder and Branch Circuits: Type THHNITHWN, 600 volt, soft-drawn annealed stranded copper conductor, PVClnylon insulation with PVC overall jacket, #I2 AWG minimum. c. Control Circuits: Type TC, 600 volt, soft-drawn annealed copper conductor, PVClnylon insulation with PVC overall jacket, #I4 AWG stranded wire for 120 volt controls. 3. Direct burial cable: Type USE cable identified for underground use. Only use where indicated on the drawings.

3 B. Terminal Lugs: 1. Provide terminal lugs on the ends of feeder and branch circuit conductors unless lugs are provided on the connected device. a. Use solderless, compression type copper locking spade terminal lugs for wires #6 AWG and smaller. b. Two-hole type for connection of wires #4 AWG and larger to copper bus bars. 2. Sizes as recommended by manufacturer for the wire being terminated. C. Connectors: 1. Designed and sized for the specific wire or cable bring connected. 2. Rated current-carrying capacity equal to or greater than, the wire or cable being connected. 3. Equipment feeder or branch circuits: a. Use mechanical compression or bolted type connector for #6 AWG and larger. b. Use compression type ring tongue terminal connectors bolted together for #8 AWG and smaller. c. Cover connector with insulating tape or heat shrinkable insulation equivalent to 150% conductor insulation. 4. Lighting and receptacle circuits: a. Use insulating spring compression connectors for #I0 AWG and smaller. b. Cover splice with insulating tape equivalent to 150% conductor insulation. D. Terminal Blocks: 2.03 BOXES 1. Designed and sized for the wires being terminated. 2. Block rated for 600 volts. 3. Binding screw-type terminals for power and control wires #8 AWG and smaller. 4. Rated current carrying capacity equal to or greater than the wire being terminated. 5. Marking strip. A. Outlet and Device Boxes: 1. Outdoor Boxes or Exposed Indoor Boxes in Wet or Damp Location: PVC coated cast iron, deep type, stainless steel fasteners, watertight, gasketed, threaded hubs. B. Junction Boxes: 1. Galvanized steel with drip lip and galvanized steel covers fastened with stainless steel screws or bolts; or cast iron with galvanized finish and flanged bolt covers. 2. Threaded conduit entrances or rigid conduit hubs on all boxes. 3. Rubber or neoprene gasket for cover. 4. Conform to NEMA 3R unless otherwise indicated. 5. Include stainless steel piano-hinged, gasketed cover and interior back panel when enclosing terminal blocks and control relays. 6. Lockable. C. Pull Boxes:

4 1. Underground type as manufactured by Quazite, Synertec or equal. 2. Constructed of fiberglass reinforced polymer concrete. 3. Open bottom type with standard duty, gasketed, bolt-down cover rated for minimum 7500 pound vertical loading. 4. Cover stamped "Electric" and equipped with stainless steel hold-down bolts and washers. 5. Minimum dimensions of 12" x 18" x 20" depth. 6. Provide with mouse holes for conduit entry as required for specific location. 7. Provide conduit system bonding using ground lug type bushings WIRING DEVICES A. Receptacles: 1. Duplex: Specification grade, 20A,120 volt, straight blade, 3-wire grounding, side wired. 2. Ground Fault Circuit Interrupter: Specification grade, terminal type, UL Class A-Group 1, 20A, 125 volt, solid state,ground fault sensing and signaling, 5mA trip level. Each protected device shall have individual test and reset buttons. B. Device Plates: 1. Stainless steel for flush mounted devices in finished areas. 2. Galvanized steel for surface mounted devices in unfinished areas. 3. Weatherproof, cast metal, gasketed for outdoor mounted devices. Provide spring-loaded cover for receptacles, allowing cord and cap to be inserted with cover closed SUPPORTING DEVICES A. Fabricated from galvanized steel manufactured framing members equal to B-Line as indicated. B. Construct as required to rigidly support all conduit runs, boxes, switches, and panels. C. Support PVC coated metal conduit with conduit clamps, sized for specific conduit size. D. Provide galvanized steel support hardware including anchors, inserts, bolts, washers and nuts ELECTRICAL IDENTIFICATION A. Wires and Cables: 1. Service, Feeder and Branch Circuits and Cable Identification: PART 3 - EXECUTION a. Tag cable insulation for #2 AWG and smaller cables. b. Color-coded self-adhesive vinyl phase designation tape not less than 3 mils thick by inches wide for #6 AWG and larger individual conductors. c. Standard Colors: Conform to NEC INSTALLATION OF CONDUIT A. General: 1. Install conduit sizes and runs as indicated on the drawings. Shift locations as required to avoid interference with other equipment and piping being installed. 2. Where routing of conduit is not indicated, such as for small lighting home run circuits and other systems requiring small conduit runs, route conduit as specified subject to Engineer's approval. 3. Maintain 6-inches clearance between conduit and piping. 4. Unless otherwise indicated no conduit shall be smaller than 314, except 112" flexible conduit

5 may be used where indicated. 5. Cut conduit square, properly ream to remove burrs, and cut threads for RGS conduit, deep and clean. Coat all field cut threads with zinc rich paint. 6. Bring conduit to shoulder of fittings and fasten securely. 7. Field-bend conduit with benders designed for purpose so as not to distort nor vary internal diameter. 8. Provide nylon pull cord in conduits to be installed but left empty. 9. Indoors, fasten conduit terminations in sheet metal boxes by 2 locknuts, and terminate with insulated bushing. Outdoors, use threaded hub or sealing locknuts. 10. Use of running threads at conduit joints and terminations is prohibited. 11. Use suitable conduit caps to protect installed conduit against entrance of dirt and moisture during construction. 12. Complete installation of conduit before starting installation of conductors. 13. Comply with applicable requirements of NEC pertaining to installation of conduit systems. 14. Bond electrical boxes, fittings and enclosures to conduit to provide electrical continuity. B. Metal Conduit: 1. lnstall in locations as indicated. 2. Make all joints watertight by field-applied coat of vinyl plastic compound. C. Liquid-Tight Flexible Metal Conduit: 1. Use between RGS conduit and motor terminal boxes or other equipment subject to vibration. 2. Install at points of connection to equipment mounted on supports to allow for expansion and contraction. 3. lnstall at locations where rigid connections are impractical. 4. Use minimum length required for the application, not to exceed 3 feet unless otherwise approved by the Engineer. 5. lnstall an external bonding jumper to conform to NEC on conduit sized inches and larger. D. Rigid Nonmetallic Conduit: 1. lnstall at locations indicated. 2. Solvent weld PVC conduit joints with solvent recommended by conduit manufacturer. 3. Follow manufacturer's solvent welding instructions to provide watertight joints WIRES AND CABLES A. General Wiring Methods: 1. Install wires and cables of types, sizes and groups indicated and specified. 2. Use no wire smaller than #I2 AWG for feeder and branch circuits. Stranded wire unless otherwise allowed. 3. Use no wire smaller than #I4 AWG for 120 volt control circuits; stranded wire. 4. Unless otherwise indicated, use #I0 AWG for 20A, 120-volt branch circuits home runs longer than 60 feet and #8 AWG for runs longer than 130 feet. 5. Install separate neutral conductor for each branch circuit. Unless otherwise indicated, combining neutrals will not be permitted. 6. Neatly train and lace wiring inside boxes, equipment and panelboards. 7. Make wire lengths for parallel circuits equal. 8. Terminate spare conductors with electrical tape and roll up in box. B. Wiring Installation In Conduits:

6 Thoroughly clean and swab conduits before installing wire. Pull wires simultaneously where more than one is being installed in same conduit. Use UL listed wire pulling lubricant for pulling #4 AWG and larger. Use of soap, oil, or grease as pulling lubricant will not be permitted. Use pulling means including fish tape, cable, rope and basket weave wirelcable grips which will not damage wire or conduit. Do not subject cable to pulling tension in excess of manufacturer's recommendations. Attach pulling grips over the wire sheath to prevent slipping the cable insulation. Do not subject wire to bending radius of less than 8 times the wire outside diameter during or after installation. Sealing of Conduits: a. After wires are installed and connected, seal conduit ends by forcing non-hardening sealing compound into the conduits to a depth at least equal to the conduit diameter. Seal conduit ends at junction boxes, pull boxes and conduit connections to equipment. b. Provide NEMA 7 conduit seal with sealing compound in conduits entering corrosive or hazardous areas. C. Wiring Connections and Terminations 1. Keep conductor splices to a minimum. Splice only in accessible junction boxes. 2. Make splices with enough spare wire for a minimum of two splices to be remade with the wire. 3. Install splices which possess equivalent, or better, mechanical strength and insulation ratings than conductor being spliced. 4. Make splices, taps and connections to carry full ampacity of conductors without perceptible temperature rise. 5. Thoroughly clean wires before installing lugs and connectors. 6. Tighten electrical connectors and terminals, including screws and bolts, in accordance with manufacturer's published torque tightening values. Where manufacturer's torquing requirements are not indicated, tighten connectors and terminals to comply with tightening torques specified in UL Standard 486A. 7. #I0 AWG and smaller, splice using permanently mounted terminal strips and ring tounge connectors. No more than 3 ring connectors will be permitted under 1 terminal. D. Electrical Identification: 3.03 BOXES 1. Feeder and Branch Circuits a. Provide color-coded markers for each conductor as specified in Part 2.06 A.1. this Section. b. Attach to each conductor in junction boxes, pull boxes, panelboards, switchgear enclosures and motor control centers. 2. Control Circuits: A. General: a. Tag each individual wire with marker as specified in Part 2.06 A.2. this Section. b. With terminal designation indicated on schematic diagrams or given on manufacturer's equipment drawings. I. Provide electrical boxes as indicated on the drawings, and as required for splices, taps, wire pulling, equipment connections and code compliance. 2. Coordinate with conduit installation work.

7 3. Locate and install boxes to allow access. 4. Fasten electrical boxes firmly and rigidly to substrates, or structural surfaces to which attached, or solidly embed in concrete or masonry. 5. Support boxes independent of conduit system. 6. Provide stainless steel boxes for outdoor locations. 7. Provide electrical connections for installed boxes. 8. Protect from construction debris and damage. B. Pull and Junction Boxes: 1. Provide pull and junction boxes of type and size indicated and specified WIRING DEVICES A. Provide wiring devices as indicated on the drawings and as specified. B. Install wiring devices only in electrical boxes which are clean and free from excess construction debris. C. Install wiring devices after wiring work is complete. D. Tighten connectors and terminals, including screws and bolts, in accordance with equipment manufacturer's published torque tightening values for wiring devices. Where manufacturer's torquing requirements are not indicated, tighten connectors and terminals to comply with the tightening torques specified in UL Standard 486A. E. Install device plates as indicated and specified. F. Unless otherwise indicated, install outdoor weatherproof receptacles: 2'-0" to 4'-0" above grade SUPPORT DEVICES A. Provide equipment supports as indicated on the drawings and as specified. B. Construct with sufficient rigidity to hold all mounted equipment and material in permanent and neat alignment FIELD QUALITY CONTROL A. Prior to energization of circuitry, check installed wiring with megohm meter to determine insulation resistance levels to ensure requirements are fulfilled. B. Prior to energization, test wiring for electrical continuity and for short-circuits. Ensure proper polarity of connections is maintained. C. Subsequent to completing wiring connections, energize circuitry and demonstrate functioning in accordance with requirements. Where necessary, correct malfunctioning units and then retest to demonstrate compliance. END OF SECTION

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9 SECTION SERVICE AND DISTRIBUTION PART 1 - GENERAL 1.01 SUMMARY A. Section includes electrical service and distribution systems including: 1. Service entrance. 2. Disconnect switches. 3. Secondary grounding. 4. Over-current protective devices. 5. Motor starters. B. Related Work: 1. Section Basic Electrical Materials and Methods C. References: 1. National Electrical Code (NEC). 2. National Electrical Manufacturers Association (NEMA). a. NEMA KS 1 - Enclosed Switches. b. NEMA AB 1 - Molded-Case Circuit Breakers. c. NEMA ICS 2 - Industrial Control Devices, Controllers and Assemblies. 3. Underwriter's Laboratories, Inc. (UL) SUBMITTALS A. Submit as specified in Section B. Furnish manufacturer's product data indicating electrical characteristics and verifying compliance with specified requirements. C. Furnish dimensional drawings of equipment including spatial relationship to proximate electrical equipment. D. Furnish power and control wiring diagrams. Clearly differentiate between portions of wiring that are manufacturer-installed and portions that are field-installed QUALITY ASSURANCE A. Where Underwriter's Laboratories, Inc. has established standards for specified products, provide only products bearing the UL label. B. Comply with NEC requirements as applicable to construction and installation of service and distribution systems. PART 2 - PRODUCTS 2.01 GENERAL: A. Provide service and distribution equipment and accessories of types, sizes, ratings and electrical characteristics indicated on the drawings.

10 2.02 DISCONNECT SWITCHES A. Acceptable Manufacturers: 1. Square D. 2. Cutler Hammer. 3. Allen Bradley. 4. Approved equal. B. Fusible and Nonfusible Disconnect Switches: 1. Heavy duty type conforming with NEMA KS Quick-make, quick-break, load interrupter, enclosed knife switch with externally operable handle interlocked to prevent opening front cover with switch in ON position. Handle lockable in OFF position. 3. Fused type where indicated. Designed to accommodate Class R Fuses. C. Enclosures: Provide NEMA Type 1 in interior locations and NEMA Type 3R in exterior locations, unless otherwise indicated on the drawings GROUNDING MATERIALS A. Conductors: 1. Solid copper in #6 AWG and smaller. 2. Stranded copper in #4 AWG and larger. B. Connections: 1. Above grade: Compression type bronze clamps or grounding lugs OVER-CURRENT PROTECTIVE DEVICES A. Acceptable Manufacturers: 1. Circuit Breakers: a. Square D. b. Cutler-Hammer. c. General Electric. d. Approved equal. 2. Fuses: a. Bussmann. b. Gould-Shawmut c. Approved equal. B. Circuit Breakers: 1. Factory assembled molded-case type conforming to NEMA AB Of electrical characteristics indicated on the drawings, with interrupting rating to meet available fault current. If available fault current is not indicated on the drawings, contact servicing utility. 3. Permanent thermal and instantaneous magnetic trips in each pole.

11 4. Provide fault current limiting protection to comply with series rated fault protection. 5. Constructwith over-center, trip-free, toggle-type operating mechanism with quick-make, quickbreak action and positive handle trip indication. 6. Provide push-to-trip button on cover for mechanical tripping circuit breakers. 7. Equip with mechanical screw type removable connector lugs for number, size and material of conductors indicated. C. Fuses: 1. Unless otherwise indicated on the drawings, provide UL Class RK5 current-limiting,time delay fuses with 100,000 RMS amperes interrupting rating for protecting service entrance, feeder or branch circuits of 600 amperes or less. Bussman FRN-R for 250 volt and FRS-R for 600 volt MAGNETIC MOTOR STARTERS A. Acceptable Manufacturers: 1. Square D 2. Cutler Hammer 3. General Electric 4. Approved equal B. Comply with applicable requirements of NEMA ICS 2. C. Open or enclosed, full voltage, non-reversing or reversing type as indicated. D. Electrical and mechanical interlocks on reversing starters to prevent both contactors from closing simultaneously. E. Provide with disconnect switch or thermal-magnetic circuit breaker in common enclosure where indicated or specified as combination starter. F. Enclosure: NEMA 1 indoors and NEMA 3R outdoors. G. Equip starters with block type manual reset overload relays. Provide with thermal units to match motor nameplate data. H. 120 volts, 60 hertz, coil operating voltage unless otherwise indicated or specified. I. Built-in volt control transformer on 480volt units of adequate capacity for all control devices as indicated on wiring diagrams. J. Provide auxiliary contacts as required by means of starter or relay. K. Provide operating handle for disconnect switch mechanism with indication and control of switch position, with enclosure door either opened or closed, and capable of being locked in OFF position. L. Accessories: 1. Push Buttons, Selector Switches and Pilot Lights: UL rated, heavy-duty, oil-tight type. 2. Auxiliary Relays a. 8 or 11 pin plug-in type relays and sockets. b. Coil voltage as indicated. c. Contacts rated 10 amperes up to 300 volts. d. Contacts as required for control of associated equipment 3. Timing Relays: a. Solid state plug-in type. b. Digitally adjustable timing range as indicated. c. On delay, off delay, or on-and-off delay as indicated. d. Contact arrangement as indicated. e. Contacts rated 5 amperes continuous at 75% power factor at 120 vac, except as otherwise

12 indicated. f. Operating voltage as indicated. g. Timing indication provided by LED which flashes during timing, glows steadily after timing, and is off when timer is de-energized ELECTRICAL IDENTIFICATION A. Engraved phenolic nameplates, black face with white core lettering, punched for mechanical fastening. B. Minimum size of 1" x 3" x 1/16" thickness with 318" letters. C. Stainless steel fasteners. D. Coordinate names and other designations with corresponding designations shown, specified or scheduled. Provide numbers, lettering or wording as indicated or approved by Engineer. PART 3 - EXECUTION 3.01 GENERAL A. Install service and distribution equipment, materials and devices as indicated, in accordance with the manufacturer's written instructions and with recognized industry practices to ensure that equipment, materials and devices fulfills requirements. B. Comply with applicable installation requirements of NEC and NEMA standards INSTALLATION OF DISTRIBUTION EQUIPMENT A. Install distribution equipment including disconnect switches, circuit breakers, starters and combination starters at locations indicated and as follows: 1. Surface mount on walls or support devices approximately 4 feet to center line above floor or grade when possible. Anchor enclosures firmly, ensuring that they are permanently and mechanically secure. 2. Arrange with proper clearances from other equipment and material to obtain accessibility for operation and maintenance. 3. Coordinate with installation of conduits and wires. B. Provide properly wired electrical connections within enclosures. C. Provide engraved phenolic nameplates on cover of each device identifying the loads connected. D. Provide type-written circuit directory card for existing panelboards upon completion of installation work INSTALLATION OF ELECTRICAL GROUNDING SYSTEM A. General: 1. Install grounding system as indicated on the drawings. 2. Ground metal conduits and electrical equipment. 3. Bond together system neutrals, service entrance enclosures, exposed non-current carrying metal parts of electrical equipment, metal conduit systems, grounding conductor in conduits and cables, and receptacle ground connectors. B. Connections: 1. Conform to manufacturer's instructions for grounding system connections. 2, Install clamp-on connectors only on thoroughly cleaned metal contact surfaces, to ensure

13 electrical conductivity and circuit integrity. 3. Make connections to equipment clean and tight to assure a low-resistance connection with resistance not exceeding 3 ohms. Install so as not to be susceptible to mechanical damage during operation or maintenance of equipment. C. Equipment Grounding Conductors: 1. Install a separate, continuous, insulated equipment grounding conductor in all feeder and branch circuits. 2. Route in same conduit as phase conductors. 3. Bond grounding conductor to all boxes and equipment enclosures through which they pass and at each end of conduit run by means of grounding bushings FIELD QUALITY CONTROL A. Upon completion of installation of distribution equipment, energize circuitry and demonstrate capability and compliance with requirements. B. Prior to energization of over-current protective devices, test devices for continuity of circuitry and for short-circuits. C. Upon completion of electrical connections and after circuitry has been energized with rated power source, test connections to demonstrate capability and compliance with requirements. Ensure that direction of rotation of each motor fulfills requirements. D. Where possible, correct malfunctioning units, then retest to demonstrate compliance. Otherwise, remove and replace with new units and retest. END OF SECTION

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15 SECTION PRE-WIRED MOTOR CONTROL PANEL PART 1 - GENERAL 1.01 SUMMARY A. Section includes devices, features, and installation requirements for pre-wired motor control panel to operate an existing duplex submersible sewage pump station as indicated on the drawings. Principal control panel components include the following: 1. Enclosure. 2. Starter units. 3. Disconnects. 4. Overload protection. 5. Over-current protection. 6. Accessory devices and features. B. Related Work: 1. Section Basic Electrical Materials and Methods 2. Section Service and Distribution C. References: 1. National Electrical Code (NEC). 2. National Electrical Manufacturers Association (NEMA): a. NEMA ICS 2 - Industrial Control Devices, Controllers and Assemblies. 3. Underwriter's Laboratories, Inc. (UL): 1.02 SUBMITTALS a. UL 486A - Wire Connections and Soldering Lugs for Use with Copper Conductors. A. Submit as specified in Section B. Submit manufacturer's technical product data indicating electrical characteristics and verifying compliance with specified requirements. C. Submit dimensional drawings of control panel showing basic layout of panel components. D. Submit power and control wiring diagrams. Clearly differentiate on wiring diagrams those conductors which are factory-installed and those which are field-installed QUALITY ASSURANCE A. Comply with requirements of NEC as applicable to motor control equipment and components. B. Coordinate with pump manufacturer to insure compatibility of pumps and control panel components. PART 2 - PRODUCTS 2.01 GENERAL: A. Provide pre-wired motor control panel to operate an existing duplex submersible sewage pump

16 station as indicated on the drawings. 1. Existing electrical service is volt, 3-phase, 4-wire. 2. Existing pumps are AuroralHydromatic Model S4NX200JB. B. Pump control panel shall be manufactured by a UL panel builder and the assembly shall bear a serialized UL label for "Enclosed Industrial Control Panels" CONTROL LOGIC A. Control system shall automatically start and stop pump motors in response to liquid level variations in the wet well through direct acting float switches (4-required). B. Rising Wet Well Level: The lead pump shall be started when the liquid level in the wet well rises to a predetermined elevation. The lag pump will be started and operate in conjunction with the lead pump when the liquid level in the wet well rises above the lead pump on elevation. The high level alarm system shall be activated when the liquid level in the wet well rises above the lag pump on elevation. C. Descending Wet Well Level: The high water alarm system will deactivate when the liquid level in the wet well descends below the lag pump on elevation. When the wet well level descends to a point below the lead pump on elevation, both pumps will be stopped. D. Active pump will alternate each pumping cycle. Normal alternation will occur when the lead pump stops. Include provisions to select automatic alternation or lock-in either pump in the lead position. E. Provide adjustable time delay relay (0-60 sec) to prevent simultaneous starting of pumps after power restoration. F. Provide intrinsically safe circuit extensions for float switches. G. The following conditions will cause an alarm which will be indicated at the control panel. 1. Seal Failure (Amber pilot light for each pump mounted on enclosure inner door). 2. High Wet Well Level (NEMA 4X red lexan alarm light mounted on top of enclosure) PANEL ENCLOSURE A. NEMA 3R, dead-front type suitable for rack mounting as indicated. Enclosure door shall be hinged with a continuous stainless steel hinge pin and secured with fast-operating clamp assembly. Equip with hasp and staple for padlocking. B. Provide removable inner swing panel fabricated of 14 gauge steel witkwhite enamel finish to accommodate specified operator controls and instruments. Panel shall have a minimum horizontal swing of 90 degrees and be held in the closed position with quarter-turn latches. Include bolted-on engraved name plates indicating functions of all operating controls and instruments. C. Provide removable back panel of 14 gauge steel with white enamel finish attached to enclosure with collar studs, to accommodate specified control components. Mount components securely to back panel utilizing screws and washers. Tap back panel to accept mounting screws. Do not use self-tapping screws to mount any components PANEL DEVICES AND FEATURES A. Equip panel with the following devices and features, logically arranged with separate power and control sections. Locate intrinsically area so that no other wiring comes within 2-inches of intrinsically safe wiring. Conform with applicable requirements of Sections and 16400, except as modified herein. 1. Main Disconnect:

17 a. Provide non-fused disconnect to interrupt incoming power supply to panel for maintenance or repairs. b. Operating handle operable without opening the inner swing panel. 2. Branch Circuit Breakers: a. Provide properly sized heavy duty thermal-magnetic trip circuit breakers for branch circuit disconnect service and short circuit protection of all motor, control and auxiliary circuits. b. Circuit breaker operating handles shall be operable without opening the inner swing panel. 3. Motor Starters: a. Provide properly sized NEMA rated magnetic motor starter for each pump motor. b. Furnish starter contacts which can be easily replaced without removing starter from its mounted position. c. Provide overload reset device operable without opening the inner swing panel. 4. Pump Selection Mode: a. Provide UL rated, heavy duty, oil-tight "H-0-A" switches for each pump motor. b. Momentary in hand position. c. Hand position not to override motor overload shutdown. 5. Alternator Relay: a. Provide relay of electronic design, plug-in type. b. Equip with 3-position selector switch to select automatic alternation or lock-in either pump in the lead position. 6. Elapsed Time Meter: a. Equip panel with elapsed time meter for each pump motor. b. Connect to motor starter to indicate total running time. c. Six digit, non-resettable type reading in hours and tenths of hours. d. Mount in inner panel swing door. 7. Pilot Lights: Equip panel with UL rated, heavy duty, oil-tight pilot light indicators for each pump as follows: a. Run, green light. b. Seal failure, amber light. 8. AudioNisual Alarm: Provide audio/visual alarm system to signal high water level. System to be activated by a "fault closing" contact initiated by a float switch installed in pump station wet-well. Alarm system to reset automatically when alarm condition has been cleared. a. Audible Alarm Device: Vibratone horn or bell suitable for outdoor mounting with an audio output of at least 85 db. b. Visual Alarm Device: Vapor-proof light fixture with at least 50 watt lamp suitable for outdoor mounting with red globe and guard. 9. Push Buttons: Equip panel with UL rated, heavy duty, oil-tight push buttons for the following

18 functions: a. Test seal failure detection system. b. Test high level alarm system. c. Silence audible alarm. 10. Lugs and Terminal Blocks: a. Provide tin or silver plated copper lugs for connection of incoming power supply and pump power leads. b. Provide terminal blocks suitable for use with locking fork or ring tongue connectors for control inputs/outputs. c. Mount lugs and terminal blocks to allow wire bending space in accordance with NEC. d. Locate such that no field wiring will cross factory wiring. 11. Wiring: a. Control panel shall be completely factory wired, except for field connections. All wiring, workmanship, and schematic wiring diagrams shall conform to applicable NEC standards. b. All user serviceable wiring shall be type THHNITHWN, 600 volts, stranded copper, color coded as follows: 1) Line and Load Circuits, AC powerblack 2) AC Control Circuits Less Than Line VoltageRed 3) Equipment Grounding ConductorGreen 4) Current Carrying GroundWhite 5) Hot with Circuit Breaker Openorange 6) Intrinsically Safe CircuitsBaby Blue c. Wire Identification and Sizing: 1) Control circuit wiring inside panel, except internal wiring of individual components, shall be 14 gauge minimum. Power wiring shall be 12 gauge minimum. 2) Wires shall be clearly numbered at each end in accordance with the schematic wiring diagram. d. Wire Bundles: 1) All internal wiring shall be neatly routed in bundles and tied in accordance with good commercial practice. 2) Bundles routed to components mounted on inner swing panel shall be made flexible at the hinged side. Provide adequate length and flex to allow swing panel to fully open without undue stress or abrasion on the wire or insulation. Secure bundles in place on each side of hinge with mechanical fastening devices. e. Schematic Wiring Diagrams: 1) Provide a laminated electrical schematic diagram of the pump controls including terminal block connections. 2) Permanently mount on the inside of the enclosure door.

19 2.05 SPARE PARTS A. Provide the following spare parts: 1. One Alternating Relay. 2. One Control Relay (Each Type Used). 3. Three Fuses (Each Size and Type Used). B. Packaged for long term storage and properly labeled for easy identification. PART 3 - EXECUTION 3.01 INSPECTION A. Examine area and conditions under which motor control panel is to be installed. Do not proceed with work until unsatisfactory conditions have been corrected in manner acceptable to installer INSTALLATION A. Install motor control panel as indicated, in accordance with manufacturer's written instructions and with recognized industry practices to ensure that equipment fulfills requirements. B. Coordinate with other electrical work including conduit and wiring work, as necessary to interface installation of motor control panel with other work. C. Provide all necessary materials, components and adjustments as required for a complete and operating pumping system. D. Make all electrical and control connections. E. Tighten connectors and terminals, including screws and bolts, in accordance with manufacturer's published torque tightening values for equipment connectors. Where manufacturer's torque requirements are not indicated, tighten connectors and terminals to comply with tightening torques specified in UL standard 486A GROUNDING A. Provide equipment grounding connections for motor control panel as indicated. B. Tighten connections to comply with tightening torques specified in UL Standard 486A to assure permanent and effective ground FIELD QUALITY CONTROL A. Prior to energizing motor control panel, check with insulation resistance tester for proper values of phase-to-phase and phase-to-ground insulation resistance. B. Subsequent to completing wiring connections, energize motor control panel, check each motor for proper phase rotation and demonstrate capability and compliance with requirements. C. Make all necessary equipment adjustments and corrective work indicated by tests. Repeat testing as necessary. END OF SECTION

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