Specifications include, but are not limited to: Sealed proposals for furnishing Three (3) New Substation 72.5kV SF6 Dead Tank Circuit Breakers, Type SPS2. A. The breaker shall meet the following ratings and electrical characteristics: Required maximum voltage 72.5 kV, RMS Insulation level: Low Frequency 160kV, RMS Impulse Crest 350kV, RMS Chopped Wave, 2 microsec. 452kV, RMS Chopped Wave, 3 microsec. 402kV, RMS Rated Continuous Current 1200 Amps Rated Short Circuit Current at rated maximum voltage 40 kA, RMS Rated Interrupting Time 3 cycles Rated Reclosing Time 12 cycles Rated Permissible Tripping Delay, Y 2 seconds Maximum Symmetrical Interrupting Current 40 kA, RMS 3-Second Short Time Current Rating 40 kA, RMS Duty Cycle OCO-10 sec-CO Closing Control Voltage 125 V DC Tripping Control Voltage 125 V DC Motor Voltage 120 V AC Heater Voltage 240 V AC B. The breaker shall be rated for an ambient temperature range of –40 degrees to +55 degrees Celsius. C. The breaker shall be tested for the highest IBC-2000 seismic standard as described by ANSI/IEEE 693-1984. D. The breaker shall be rated to withstand a wind load of 90 mph imposed upon the structure supporting the terminal connection per ANSI C37.04 Section 6.2. E. The breaker shall be rated for use at altitudes up to 5000 feet above sea level per ANSI C37.04 Section 4.2.2. For altitudes over 3300 feet, the rated dielectric strength and rated maximum voltage and current shall be multiplied by altitude correction factors to obtain values at which applications may be made.