A raceway of at least two channel modules (2, 16, 18, 20) for fastening, guiding and/or protecting electric cable means along or on top of at least one structural part, particularly along or on top of at least one structural part of an aircraft, said channel modules (2, 16, 18, 20) comprising: essentially longitudinal channel sections (2 A, 2 B, 15 A, 15 B, 19 A, 19 B, 21 A, 21 B) each with a base wall integral with essentially parallel side walls (8, 9), said base wall and said side walls (8, 9) providing an open end at both ends of each of said at least two essentially longitudinal channel sections (2 A, 2 B, 15 A, 15 B, 19 A, 19 B, 21 A, 21 B), said at least two essentially longitudinal channel sections (2 A, 2 B, 15 A, 15 B, 19 A, 19 B, 21 A, 21 B) being movable telescopically into one another at said open ends by means of complementary male element means (3, 14, 23, 25) and female element means (4, 13) and each of said essentially longitudinal channel sections (2 A, 2 B, 15 A, 15 B, 19 A, 19 B, 21 A, 21 B) is provided with at least one fixation hole, wherein said male element means project from a central part of the open end of one essentially longitudinal channel section (2 A, 15 A, 19 A, 21 A) and said female element means are spared from another central part of the open end of an opposed essentially longitudinale channel section (2 B, 15 B, 19 B, 21 B), said essentially longitudinal channel sections (2 A, 2 B, 15 A, 15 B, 19 A, 19 B, 21 A, 21 B) are made of thermoplastic material and said at least one fixation hole is inside each one of said channel sections (2 A, 2 B, 15 A, 15 B, 19 A, 19 B, 21 A, 21 B) through said base wall of each essentially longitudinal channel section (2 A, 2 B, 15 A, 15 B, 19 A, 19 B, 21 A, 21 B), characterized in that pairwise slots are provided inside the channel sections (2 A, 2 B, 15 A, 15 B, 19 A, 19 B, 21 A, 21 B) respectively next to each of the side walls (8, 9) through the base wall to a clearance in the base wall essentially longitudinal channel sections (2 A, 2 B, 15 A, 15 B, 19 A, 19 B, 21 A, 21 B) each with a base wall integral with essentially parallel side walls (8, 9), said base wall and said side walls (8, 9) providing an open end at both ends of each of said at least two essentially longitudinal channel sections (2 A, 2 B, 15 A, 15 B, 19 A, 19 B, 21 A, 21 B), said at least two essentially longitudinal channel sections (2 A, 2 B, 15 A, 15 B, 19 A, 19 B, 21 A, 21 B) being movable telescopically into one another at said open ends by means of complementary male element means (3, 14, 23, 25) and female element means (4, 13) and each of said essentially longitudinal channel sections (2 A, 2 B, 15 A, 15 B, 19 A, 19 B, 21 A, 21 B) is provided with at least one fixation hole, said male element means project from a central part of the open end of one essentially longitudinal channel section (2 A, 15 A, 19 A, 21 A) and said female element means are spared from another central part of the open end of an opposed essentially longitudinale channel section (2 B, 15 B, 19 B, 21 B), said essentially longitudinal channel sections (2 A, 2 B, 15 A, 15 B, 19 A, 19 B, 21 A, 21 B) are made of thermoplastic material and said at least one fixation hole is inside each one of said channel sections (2 A, 2 B, 15 A, 15 B, 19 A, 19 B, 21 A, 21 B) through said base wall of each essentially longitudinal channel section (2 A, 2 B, 15 A, 15 B, 19 A, 19 B, 21 A, 21 B), characterized in that pairwise slots are provided inside the channel sections (2 A, 2 B, 15 A, 15 B, 19 A, 19 B, 21 A, 21 B) respectively next to each of the side walls (8, 9) through the base wall to a clearance in the base wall