SECTION 512A ELECTRICAL. A. Electrical materials, installation, testing and miscellaneous.

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1 SECTION 512A ELECTRICAL PART 1 GENERAL 1.1 SECTION INCLUDES A. Electrical materials, installation, testing and miscellaneous. 1.2 STANDARDS AND REFERENCES A. All electrical work shall be executed in strict accordance with the following standards: 1.3 TESTING 1 National Electrical Code (NEC) 2 Underwriters Laboratory (UL Listings)698 3 Local, State and Federal rules and regulations A. The CONTRACTOR shall completely test the electrical system to assure that circuits are wired as called for on the drawings, and shall test the system for grounds and short circuits. B. The CONTRACTOR shall provide an Arc Flash study and appropriate labeling. The label format shall be the same as shown in Figure 1.3 below. 1.4 MISCELLANEOUS FIGRURE 1.3 A. Provide storage for materials and assume complete responsibility for losses. Protect completed work, work underway and materials against

2 loss or damage. Close circuit openings with caps or plugs during installation. Cover fixtures and equipment and protect against dirt or damage caused by water, chemicals or mechanical accident. B. The CONTRACTOR shall coordinate the work under this section with the work being done under other sections. The CONTRACTOR shall promptly notify the DESIGN ENGINEER of any conflicts within the Plans and Specifications. All changes required in the work of the CONTRACTOR as a result of his failure to notify the DESIGN ENGINEER shall be made by the CONTRACTOR at his own expense. C. The CONTRACTOR shall coordinate with the power company for permanent power service and, if necessary, temporary power. The CONTRACTOR shall be solely responsible for any and all costs associated with providing temporary and permanent power to the lift station. D. The DESIGN ENGINEER shall be responsible for review of shop drawings and equipment submittals. Two complete sets of the shop drawings and other submittals shall be submitted to the PUBLIC WORKS DEPARTMENT prior to installation of the lift station and equipment. E. Should the CONTRACTOR fail to comply with the requirements of this section regarding Record Drawings, final approval and acceptance shall be delayed. PART 2 MATERIALS 2.1 SERVICE ENTRANCE AND EQUIPMENT A. CONTRACTOR must provide the following signs at all confined space entry points. They must be on 5 x7 aluminum plates, with permanent weatherproof lettering and attached with S.S. fasteners. 2.2 CONTROL PANEL 1. DANGER CONFINED SPACE; ENTER BY PERMIT ONLY 2. FALL PROTECTION REQUIRED A. Furnish and install a duplex pump station control panel as shown in drawing package. Control Panel shall be have a UL698 listing. The UL698 panel builder shall be located with 100 miles of the job site. It must include all requirements and items as listed below and must be sized large enough to provide unused space for future equipment installed by the City.

3 1. The control panel must be NEMA 4X Stainless steel with latches that require no tool to open, padlocking hasp and matching S.S. drip shield. The panel shall also include internal LED lighting with door mounted switches. 2. The panel must include the line power components, with the following switches accessible without opening the swing out panel door: a. Main breaker b. Lighting/surge protection. 3. Motor feed components; one for each pump circuit breaker, VFD, and pump manufacturer s protective relays, and auxiliary contacts. 4. The panel must include control and monitoring components on a separate circuit breaker (accessible without opening the swing out panel) as noted below; a. Allen Bradley Compact Logix 1769-L33ER PLC b. HMI screen mounted in the front of the swing-out panel Allen Bradley Panel View Plus c. I/O modules 1. Digital Input 1769-IQ16 2. Digital Output 1769-OB16 3. Analog Input 1769-IF4 d. 120V control transformer e. UPS Toshiba UT1A1A010C6 With relay interface module f. Air conditioner with internal heater sized for calculated heat load. g. VFD Allen Bradley Powerflex 755 series with Ethernet communication module and harmonic filters to meet IEEE-519 h. Provide 100% spare fuses.(one of each type and size) 5. Pressure transducer. a. The 15 PSI pressure transducer shall be a KPSI Model 750 with more than adequate cable to reach inside the panel. 6. Back-up high level float switch that meets the following requirements:

4 a. When level in the wet well rises to the float elevation, a timer logic in the PLC will prevent more than one (1) pump from trying to start at the same time after a power outage and providing a float operation alarm. b. The float will be mounted for easy removal, cleaning, and adjustment. B. All components shall be identified with engraved nameplates with a white background. Lettering shall be black and at least 1/4 high. C. Install 20 amp GFCI receptacle on the exterior of the panel. 2.3 NOT USED 2.4 CONDUIT A. All exposed conduit to be rigid galvanized. Provide conduit seal offs where required by NEC for Class 1 Division 1 and Class 1 Division 2 areas. B. All underground conduit to be schedule 80 PVC. C. Minimum conduit size for motor feeders is one and one-half inch (1 ½ ). 2.5 CONDUCTORS A. Conductors shall be copper unless otherwise specified. B. The insulation for conductors, size #8 and smaller, shall be type THWN or THHN. C. Conductors shall be sized according to the drawings. All wire shall be stranded. Minimum wire size shall be #12 except where specified for signal and pilot control conductors. 1. Motor feeders shall be copper, type RHW or TW for sizes 10 and 12, and THWN for larger sizes, installed in rigid galvanized metal conduit. Motors shall be grounded with a visible green ground wire 2. Internal panel wiring shall be color-coded and any wiring leaving the panel shall pass through properly numbered or coded terminal strips. Every switch, control relay, circuit

5 2.6 LOCATING TAPE breaker, wiring and other component, either inside or outside the control panel shall be visibly identified by permanently attached phenolic plates. A. Material: Two inch red 4 mil polyethylene. B. Labeling: Caution Buried Electrical Below in 1 ½-inch minimum black lettering. PART 3 WORKMANSHIP 3.1 SERVICE ENTRANCE AND EQUIPMENT A. Signs 1. Signs as specified in section 2.1 must be posted at all confined space entry points. 2. They must not pose a tripping hazard. B. Grounding 3.2 CONTROL PANEL 1. All electrical panelboards and equipment shall be grounded in accordance with the requirements of the NEC. The neutral bus of panelboards shall be grounded to the system ground and adjoining sections of switchgear bonded together. 2. No portion of the electrical system shall be energized until the service ground has been connected. A. Safety features shall include the ability or devices to Lock Out/Tag out all breakers, all resets and controls accessible without opening swing out panel. B. Contractor shall install the proper I/O legend that comes with each module on the back of the cover. 3.3 CONDUIT A. All systems of conduit must be installed completely before conductors are pulled in. B. Raceway ends shall be capped during construction. Conduits in which

6 water or foreign matter has accumulated shall be thoroughly cleaned to the satisfaction of the Engineer or be replaced. C. A tagged #12 AWG galvanized, or nylon, pull wire shall be provided in all empty conduits with at least eighteen (18) inches coiled free at each end. Only tags with a metal rim, made for this purpose, shall be used. D. All conduit joints shall be cut square, threaded, reamed smooth and made up tight. Bends or offsets shall be made with standard conduit ells. Field bends shall be made with approved hickey, and conform to NEC limitations. E. Provide one spare 1 1/2 inch conduit from wet well to control panel and one spare 1-1/2 inch conduit from control panel to any below grade junction box. Spare conduits must be properly marked. F. All exposed threads on rigid conduit shall be coated with an anticorrosive coating. 3.4 CONDUCTORS A. All conductors shall be installed in conduit. B. Conductors shall not be pulled into conduit until cabinets and outlet boxes are free of foreign matter and moisture. C. Conductors shall be continuous from outlet to outlet. 3.5 SUPERVISORY CONTROL AND DATA ACQUISITION - SCADA A. SCADA shall be provided with a contractor supplied GE MDS-INET II RADIO 900 HL SPREAD SPECTRUM through a contractor supplied 7 element antenna mounted Telewave ANT930Y10-WR at an adequate elevation. SCADA controls and alarms will be determined by the City of Meridian. SCADA programming will be provided by the City of Meridian under a separate contract. B. Monitoring shall be provided with wrap around current transducers for alarm and monitoring of each pump s amps through SCADA. Hour meters for each pump will be displayed on the HMI and through SCADA. Monitoring for each pump, shall be provided on the HMI hour meter, Run indication Seal Fail, Overtemp. High Level Alarm, Low Level Alarm. High and low level alarms to be nonlatching.

7 3.6 SITE LIGHTING A. One 3900 Lumen LED flood light, shall be installed within the fenced lift station area. B. The light shall be mounted on 20ft. square pole above the control panel and shall be operated by an output from the PLC. The PLC will be programmed to automatically turn the light off after 30 min. The exact location will be determined during plan review and approval. END OF SECTION

8 SECTION 512C COMPLETION REQUIREMENTS Prior to Lift Station approval and acceptance the CONTRACTOR shall complete the following: 1.1 FINAL CLEANING A. Prior to final inspection, execute the following final cleaning items. 1. Clean site. 1.2 ADJUSTMENTS 2. Sweep paved areas. 3. Rake and clean landscaped surfaces. 4. Remove waste, surplus materials and construction debris from the site. A. Adjust equipment to ensure smooth and unhindered operation. 1.3 OPERATION AND MAINTENANCE DATA It is recommended that the Contractor submit one (1) copy of completed Operation and Maintenance manual in final form fifteen (15) days prior to the final inspection. This copy will be returned after the final inspection, with PUBLIC WORKS comments. Revise content of documents as required prior to final submittal. A. Prior to final acceptance the following copies of the Operation and Maintenance manuals are required. 1. Four (4) Hard Copies. 2. Two (2) complete copies on CD. C. The manuals must be presented as follows: 1. Bound in D-size, three ring binders with durable plastic covers. 2. Binder covers must be titled "OPERATION AND MAINTENANCE INSTRUCTIONS" and include the name of project.

9 3. Internally subdivide the binder contents with permanent page dividers, logically organized as described in this section with tab titling clearly printed under reinforced laminated plastic tabs. 4. Text pages must be on 8-1/2 x 11 sheets on thirty (30) pound bond white paper. C. TABLE OF CONTENTS 1. Prepare a Table of Contents for each volume, with each product or system description identified. Organization must be in the following general layout: PART 1: PART 2: Directory listing names, addresses, and telephone numbers of DESIGN ENGINEER, CONTRACTOR, subcontractors, and major equipment suppliers. Operation and maintenance instructions must be arranged by process flow and subdivided by specification section. For each category, identify names, address and telephone numbers of subcontractors and suppliers. Identify the following: a. Significant design criteria. b. List of equipment. c. Parts list for each component. d. Operating instructions. e. Maintenance instructions for equipment and systems. f. Electrical to include: switchgear, manufacturer's recommended maintenance and operation instructions, parts list with name, address and phone number of local source of replacement parts PART 3: Project documents and certificates, including the following: 1.4 WARRANTIES a. Shop drawings and product data. b. Certificates. c. Photocopies of warranties. A. Warranties must be provided for the entire lift station for two (2) years from the date of the final acceptance letter issued by the City of Meridian. 1. Additional manufacturer s warranties must be submitted for all components:

10 B. Provide duplicate notarized copies. C. Submit prior to request for final approval and acceptance. D. For items of Work delayed beyond date of Substantial Completion, provide updated submittal within ten (10) days after acceptance, listing date of acceptance as start of warranty period. 1.5 SPARE PARTS AND MAINTENANCE MATERIALS A. Provide products, spare parts, maintenance and extra materials in quantities specified in individual specification sections. B. Deliver spare parts, extra materials and other required products to WASTEWATER DIVISION; obtain receipt prior to final approval and acceptance. 1.6 STATEMENT OF COMPLIANCE THE CONTRACTOR MUST SUBMIT A LETTER OF COMPLIANCE TO THE CITY OF MERIDIAN PUBLIC WORKS DEPARTMENT PRIOR TO REQUESTING A CERTIFICATE OF OCCUPANCY FOR ANY BUILDING. END OF SECTION

11 1.1 GENERAL The CONTRACTOR shall: SECTION 512D SYSTEM START UP 1. Coordinate a schedule for start-up of various equipment and systems. 2. Notify the DESIGN ENGINEER, the PUBLIC WORKS DEPARTMENT and WASTEWATER SUPERINTENDENT seven (7) days prior to start-up of each item. 3. Clean wet well of all construction debris prior to starting pumps. 4. Verify that each piece of equipment or system has been checked for proper lubrication, drive rotation, belt tension, control sequence, or other conditions which may cause damage. 5. Verify that tests, meter readings, and specified electrical characteristics agree with those required by the equipment or system manufacturer. 6. Verify wiring and support components for equipment are complete and tested. 7. Execute start-up under supervision of responsible Manufacturer's representative, City Representative and CONTRACTOR'S personnel in accordance with manufacturer's instructions. 8. Submit a written report that equipment or system has been properly installed and is functioning correctly. 1.2 DEMONSTRATION AND INSTRUCTION In addition to the requirements of Section 1.1 above, the CONTRACTOR shall: 1. Demonstrate operation and maintenance of the system to City personnel prior to final acceptance. The CONTRACTOR shall provide the equipment manufacturer's representative for a minimum of one (1) day of training to City personnel. The CONTRACTOR shall coordinate and schedule demonstration of the system with the WASTEWATER DIVISION.

12 2. Utilize operation and maintenance manuals as basis for instruction. Review contents of manual with City personnel in detail to explain all aspects of operation and maintenance. 3. Demonstrate start-up, operation, control, adjustment, troubleshooting, servicing, maintenance, and shutdown of each item of equipment at agreed-upon times, at equipment location. 4. Prepare and insert additional data in operations and maintenance manuals when need for additional data becomes apparent during instruction. END OF SECTION