ANSI C57.12.25 : 1990
ANSI C57.12.25 : 1990
TRANSFORMERS - PAD-MOUNTED, COMPARTMENTAL-TYPE, SELF-COOLED, SINGLE-PHASE DISTRIBUTION TRANSFORMERS WITH SEPARABLE INSULATED HIGH-VOLTAGE CONNECTORS; HIGH VOLTAGE, 34 500 GRDY/19 920 VOLTS AND BELOW; LOW VOLTAGE, 240/120 VOLTS; 167 KVA AND SMALLER - REQUIREMENTS
Institute of Electrical & Electronics Engineers