ABSTRACT
The following tables give the maximum dis tance allowed for selected copper wire sizes and currents. The tables are for 12 V, 48 V, and 120 V systems and the voltage drop is lim ited to 3%. The wire size is in AWG (Ameri can Wire Gage) with its equivalent in wire sec tion in square millimetres (mm2). These tables can be adjusted to reflect a different voltage drop percentage or different wire sections which are not noted in the table by using sim ple ratios. For example, a 5% table can be cal culated by multiplying the values in the table by 5/3, or a 10 mm2 section can be calculated by dividing any column by its section size and multiplying by 10.
