2005 NEW MEXICO ELECTRICAL CODE States:
210.19 (A). General. Voltage drop. Add: “Conductors for branch circuits shall be sized to prevent excessive voltage drop. Conductors on 15 amp branch circuits, between the overcurrent protection device and the farthest outlet served, shall not exceed 75 feet for # 14 AWG copper circuit conductors, or 150 feet for # 12 AWG copper, measured along the branch circuit conductors. Conductors on 20 amp branch circuits, between the overcurrent protection device and the farthest outlet served, shall not exceed 75 feet for # 12 AWG copper, or 150 feet for # 10 AWG copper, measured along the branch circuit conductors. Branch circuits exceeding 150 feet from the overcurrent device to the farthest outlet served measured along the branch circuit conductors, shall be sized so that the voltage drop does not exceed 5%.”
