1、12-09 22 05 12 - 1 SECTION 22 05 12 GENERAL MOTOR REQUIREMENTS FOR PLUMBING EQUIPMENT PART 1 - GENERAL 1.1 DESCRIPTION: This section describes the general motor requirements for plumbing equipment. 1.2 RELATED WORK: A. Section 26 05 11, REQUIREMENTS FOR ELECTRICAL INSTALLATIONS: General electrical r
2、equirements common to more than one section of Division 26. B. 26 29 11, LOW-VOLTAGE MOTOR STARTERS: Starters, control and protection of motors: Section C. Section 26 24 19, MOTOR-CONTROL CENTERS: Motor Control Centers. 1.3 SUBMITTALS: A. In accordance with Section 26 05 11, REQUIREMENTS FOR ELECTRI
3、CAL INSTALLATIONS, submit the following: B. Shop Drawings: 1. Sufficient information, clearly presented, shall be included to determine compliance with drawings and specifications. 2. Motor nameplate information shall be submitted including electrical ratings, dimensions, mounting details, materials
4、, horsepower, power factor, current as a function of speed, current efficiency, speed as a function of load, RPM, enclosure, starting characteristics, torque characteristics, code letter, full load and locked rotor current, service factor, and lubrication method. 3. Motor parameters required for the
5、 determination of the Reed Critical Frequency of vertical hollow shaft motors shall be submitted. C. Manuals: 1. Companion copies of complete maintenance and operating manuals, including technical data sheets and application data shall be submitted simultaneously with the shop drawings. D. Certifica
6、tion: Two weeks prior to final inspection, unless otherwise noted, four copies of the following certification shall be submitted to the Resident Engineer: 1. Certification shall be submitted stating that the motors have been properly applied, installed, adjusted, lubricated, and tested. 1.4 APPLICAB
7、LE PUBLICATIONS: A. The publications listed below (including amendments, addenda, revisions, supplements and errata) shall form a part of this Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-12-09 22 05 12 - 2 specification to the extent referenced.
8、Publications are referenced in the text by designation only. B. National Electrical Manufacturers Association (NEMA): MG 1-07 Motors and Generators MG 2-01 Safety Standard and Guide for Selection, Installation and Use of Electric Motors and Generators C. National Fire Protection Association (NFPA):
9、70-08 National Electrical Code (NEC) PART 2 - PRODUCTS 2.1 MOTORS: A. For alternating current, fractional and integral horsepower motors, NEMA Publications MG 1 and MG 2 shall apply. B. Voltage ratings shall be as follows: 1. Single phase: a. Motors connected to 120-volt systems: 115 volts. b. Motor
10、s connected to 208-volt systems: 200 volts. c. Motors connected to 240 volt or 480 volt systems: 230/460 volts, dual connection. 2. Three phase: a. Motors connected to 208-volt systems: 200 volts. b. Motors, less than 74.6 kW (100 HP), connected to 240 volt or 480 volt systems: 230/460 volts, dual c
11、onnection. c. Motors, 74.6 kW (100 HP) or larger, connected to 240-volt systems: 230 volts. d. Motors, 74.6 kW (100 HP) or larger, connected to 480-volt systems: 460 volts. e. Motors connected to high voltage systems: Shall conform to NEMA Standards for connection to the nominal system voltage shown
12、 on the drawings. C. Number of phases shall be as follows: 1. Motors, less than 373 W (1/2 HP): Single phase. 2. Motors, 373 W (1/2 HP) and larger: 3 phase. 3. Exceptions: a. Hermetically sealed motors. b. Motors for equipment assemblies, less than 746 W (1 HP), may be single phase provided the manu
13、facturer of the proposed assemblies cannot supply the assemblies with three phase motors. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-12-09 22 05 12 - 3 D. Horsepower ratings shall be adequate for operating the connected loads continuously in the
14、 prevailing ambient temperatures in areas where the motors are installed, without exceeding the NEMA standard temperature rises for the motor insulation. E. Motor designs, as indicated by the NEMA code letters, shall be coordinated with the connected loads to assure adequate starting and running tor
15、que. F. Motor Enclosures: 1. Shall be the NEMA types shown on the drawings for the motors. 2. Where the types of motor enclosures are not shown on the drawings, they shall be the NEMA types, which are most suitable for the environmental conditions where the motors are being installed. 3. Enclosures
16、shall be primed and finish coated at the factory with manufacturers prime coat and standard finish. 4. All motors in hazardous locations shall be approved for the application and meet the Class and Group as required by the area classification. G. Electrical Design Requirements 1. Motors shall be con
17、tinuous duty. 2. The insulation system shall be rated minimum of class B, 130 C (266 F). 3. The maximum temperature rise by resistance at rated power shall not exceed Class B limits, 80 C (176 F). 4. The speed/torque and speed/current characteristics shall comply with NEMA Design A or B, as specifie
18、d. 5. Motors shall be suitable for full voltage starting, unless otherwise noted. 6. Motors for variable frequency drive applications shall adhere to NEMA standards publication MG 1, Part 30, Application considerations for Constant Speed Motors Used on a Sinusoidal Bus with Harmonic Content and Gene
19、ral Purpose Motors Used with Adjustable voltage or Adjustable frequency controls, or both, or Part 31, Definite Purpose Inverter Fed Polyphase Motors. H. Mechanical Design Requirements 1. Bearings shall be rated for a minimum of 26,280 hours L-10 life at full load direct coupled, except vertical hig
20、h thrust motors. 2. Vertical motors shall be capable of withstanding a momentary up thrust of at least 30% of normal down thrust. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-12-09 22 05 12 - 4 3. Grease lubricated bearings shall be designed for e
21、lectric motor use. Grease shall be capable of the temperatures associated with electric motors and shall be compatible with Polyurea based greases. 4. Grease fittings, if provided, shall be Alemite type or equivalent. 5. Oil lubricated bearings, when specified, shall have an externally visible sight
22、 glass to view oil level. 6. Vibration shall not exceed 0.15 inch per second, unfiltered peak. 7. Noise level shall meet the requirements of the application. 8. Motors on 180 frames and larger shall have provisions for lifting eyes or lugs capable of a safety factor of 5. 9. All external fasteners s
23、hall be corrosion resistant. 10. Condensation heaters, when specified, shall keep motor windings at least 5 C (41 F) above ambient temperature. 11. Winding thermostats, when specified shall be normally closed, connected in series. 12. Grounding provisions shall be in the main terminal box. I. Additi
24、onal requirements for specific motors, as indicated in other sections, shall also apply. J. NEMA Premium Efficiency Electric Motors, Motor Efficiencies: All permanently wired polyphase motors of 746 Watts (1 Horsepower) or more shall meet the minimum full-load efficiencies as indicated in the follow
25、ing table, and as specified in this specification. Motors of 746 Watts (one horsepower) or more with open, drip-proof or totally enclosed fan-cooled enclosures shall be NEMA premium efficiency type, unless otherwise indicated. Motors provided as an integral part of motor driven equipment are exclude
26、d from this requirement if a minimum seasonal or overall efficiency requirement is indicated for that equipment by the provisions of another section. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-12-09 22 05 12 - 5 Minimum Efficiencies Open Drip-Pr
27、oof Minimum Efficiencies Totally Enclosed Fan-Cooled Rating kW (HP) 1200 RPM 1800 RPM 3600 RPM Rating kW (HP) 1200 RPM 1800 RPM 3600 RPM 0.746 (1) 82.5% 85.5% 77.0% 0.746 (1) 82.5% 85.5% 77.0% 1.12 (1.5) 86.5% 86.5% 84.0% 1.12 (1.5) 87.5% 86.5% 84.0% 1.49 (2) 87.5% 86.5% 85.5% 1.49 (2) 88.5% 86.5% 8
28、5.5% 2.24 (3) 88.5% 89.5% 85.5% 2.24 (3) 89.5% 89.5% 86.5% 3.73 (5) 89.5% 89.5% 86.5% 3.73 (5) 89.5% 89.5% 88.5% 5.60 (7.5) 90.2% 91.0% 88.5% 5.60 (7.5) 91.0% 91.7% 89.5% 7.46 (10) 91.7% 91.7% 89.5% 7.46 (10) 91.0% 91.7% 90.2% 11.2 (15) 91.7% 93.0% 90.2% 11.2 (15) 91.7% 92.4% 91.0% 14.9 (20) 92.4% 9
29、3.0% 91.0% 14.9 (20) 91.7% 93.0% 91.0% 18.7 (25) 93.0% 93.6% 91.7% 18.7 (25) 93.0% 93.6% 91.7% 22.4 (30) 93.6% 94.1% 91.7% 22.4 (30) 93.0% 93.6% 91.7% 29.8 (40) 94.1% 94.1% 92.4% 29.8 (40) 94.1% 94.1% 92.4% 37.3 (50) 94.1% 94.5% 93.0% 37.3 (50) 94.1% 94.5% 93.0% 44.8 (60) 94.5% 95.0% 93.6% 44.8 (60)
30、 94.5% 95.0% 93.6% 56.9 (75) 94.5% 95.0% 93.6% 56.9 (75) 94.5% 95.4% 93.6% 74.6 (100) 95.0% 95.4% 93.6% 74.6 (100) 95.0% 95.4% 94.1% 93.3 (125) 95.0% 95.4% 94.1% 93.3 (125) 95.0% 95.4% 95.0% 112 (150) 95.4% 95.8% 94.1% 112 (150) 95.8% 95.8% 95.0% 149.2 (200) 95.4% 95.8% 95.0% 149.2 (200) 95.8% 96.2%
31、 95.4% K. Minimum Power Factor at Full Load and Rated Voltage: 90 percent at 1200 RPM, 1800 RPM and 3600 RPM. Power factor correction capacitors shall be installed unless the motor is controlled by a variable frequency drive. The power factor correction capacitors shall be able to withstand high vol
32、tage transients and power line variations without breakdown. PART 3 - EXECUTION 3.1 INSTALLATION: Install motors in accordance with manufacturers recommendations, the NEC, NEMA, as shown on the drawings and/or as required by other sections of these specifications. Provided by IHSNot for ResaleNo rep
33、roduction or networking permitted without license from IHS-,-,-12-09 22 05 12 - 6 3.2 FIELD TESTS Megger all motors after installation, before start-up. All shall test free from grounds. - - - E N D - - - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
