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- [42] AMERICAN NATIONAL STANDARD: REQUIREMENTS FOR PAD-MOUNTED COMPARTMENTAL-TYPE SINGLE-PHASE DISTRIBUTION TRANSFORMERS WITH SEPARABLE INSULATED HIGH-VOLTAGE CONNECTORS, HIGH-VOLTAGE, 24 940 Grd Y/14 400 VOLTS AND BELOW: LOW-VOLTAGE, 240/120; 167 kVA AND SMALLER. American National Standards Institute, Standards, 1975,