The invention relates to an electrical ribbon conductor (40, 60, 80, 100) for motor vehicles, comprising a ribbon conductor core (42, 62, 82, 102) which is composed of
electrically conductive ribbon conductor material, and comprising an insulation which sheaths the ribbon conductor core (42, 62, 82, 102) and is composed of an insulating material, wherein the height (Hk) of the ribbon conductor core (42, 62, 82, 102) is lower than the width (Bk) of the ribbon conductor core, wherein the ribbon conductor core (42, 62, 82, 102) has at least one narrow side (46a-b, 68a-b, 86a-b, 106a-b) which limits the width of the ribbon conductor core (42, 62, 82, 102) on one side, wherein the at least one narrow side (46a-b, 68a-b, 86a-b, 106a-b) of the ribbon conductor core (42, 62, 82, 102) has a partial surface (52a-b, 70a-b, 114a-b) at least over sections of the length of the ribbon conductor (40, 60, 80, 100), the contour of said partial surface, in cross section of the ribbon conductor core (42, 62, 82, 102), forming a straight section (46a-b, 54a-b, 72a-b, 116a-b) which extends over part of the height of the ribbon conductor core (42, 62, 82, 102), wherein the straight section (46a-b, 54a-b, 72a-b, 116a-b) extends over at least 75% of the height of the ribbon conductor core (42, 62, 82, 102). The invention further relates to an electrical ribbon conductor (40, 60, 80, 100) for motor vehicles, comprising a ribbon conductor core (42, 62, 82, 102) which is composed of
electrically conductive ribbon conductor material, and comprising an insulation (44, 64, 84, 104) which sheaths the ribbon conductor core (42, 62, 82, 102) and is composed of an insulating material, wherein the height (Hk) of the ribbon conductor core (42, 62, 82, 102) is lower than the width (Bk) of the ribbon conductor core (42, 62, 82, 102), and wherein the insulation (44, 64, 84, 104) has a greater wall thickness at least over sections of the length of the ribbon conductor (40, 60, 80, 100) on at least one side (46a-b, 48a-b, 68a-b, 86a-b, 88a-b, 106a-b, 108a-b) of the ribbon conductor core (42, 62, 82, 102) than on at least one other side (46a-b, 48a-b, 68a-b, 86a-b, 88a-b, 106a-b, 108a-b) of the ribbon conductor core (42, 62, 82, 102).