Specifications include, but are not limited to: CLIMATE, ATMOSPHERE AND ENVIRONMENT: A. Design for outdoors conditions: 1. Windblown dust 2. High UV 3. High and Low temperatures B. Maximum Ambient Temperature: plus 40 degrees C C. Minimum Ambient Temperature: minus 30 degrees C D. Wind Minimum Design Requirements 90mph, 3 second gust per ANSI/ASCE Std. 7-05. E. Wind and Ice Minimum Design Requirements per ANSI/ASCE Std. 7-05 (NESC Medium Loading District) F. Design Seismic load per IEEE std. 693, low qualification level. Withstand lateral seismic forces generated by a ground acceleration up to 0.1g. IV. 69 KV CURRENT TRANSFORMER RATINGS: A. Wound type, oil filed current transformer for revenue metering purpose. B. Primary connection is line-to-ground, rated 42kV, for use on a 69kV lineto-line circuit. C. Basic impulse level: 350kV D. Frequency: 60 Hertz E. Ratio: Single Ratio 150:5 F. Meter Accuracy Class: 0.15% or lower for all burdens thru 1.8 ohms G. Continuous Thermal Current Rating Factor: 4 or higher at 30⁰C ambient H. Accuracy Range: Current Transformer maintains 0.15% or lower accuracy from 1% to 400% of rated current (3 to 1200A)
