Given: The following 480 volt, 3 phase, 3 wire intermittent use equipment is in a commercial kitchen: 2 – 5,000 watt water heaters 4 – 3,000 watt fryers 2 – 6,000 watt ovens . Do NOT use the optional method. Each ungrounded conductor in the service must be a minimum of ______.

Given: The following 480 volt, 3 phase, 3 wire intermittent use equipment is in a commercial kitchen: 2 – 5,000 watt water heaters 4 – 3,000 watt fryers 2 – 6,000 watt ovens . Do NOT use the optional method. Each ungrounded conductor in the service must be a minimum of ______.