Specifications include, but are not limited to: 2.1 SERVICE CONDITIONS A. All equipment shall be designed and built for industrial service and be capable of operating successfully under the following applicable conditions. 1. 40 degrees C maximum ambient temperature. 2. Voltage variations to + 10% of nameplate rating. 3. Frequency variations to + 5% of nameplate rating. 4. Combined voltage and frequency variations to + 10% total, as long as frequency does not exceed + 5%. 5. 3,300-foot maximum altitude. 2.2 ELECTRIC MOTORS A. General: Electric motor driven pumps shall be premium efficiency with vertical hollow shaft electric motors, design B, high thrust, squirrel cage, induction type having TEFC enclosures unless otherwise specified. Motors shall be suitable electrically and mechanically to efficiently and effectively drive pumps. Motors shall operate in accordance with these specifications. Motors shall be sized such that the pump BHP shall not exceed the nameplate data at any location on the full-speed operating curve.
