levation Designed for operation at 1000 m (3300 ft) above sea level Sound Level NEMA TR1 Standard Efficiency Standard DOE 2010, 10 CFR Part 431 Primary Voltage 13800GY/7970 BIL 95 kV kV Class 15 kV Primary Configuration Dead Front Primary Configuration Loop Feed Taps 2 - 2.5% taps above and 2 - 2.5% ta