A wire harness includes a first conductor path having a high priority in protection, a second conductor path having a priority in protection which is lower than that of the first conductor path, and an external member having a tubular shape and accommodating the first conductor path and the second conductor path altogether so as to protect them. The external member has a form in which the first conductor path is positioned farther away from a road surface than the second conductor path within a predetermined range in a longitudinal direction thereof.
1. A wire harness comprising:
a first conductor path having a high priority in protection;
a second conductor path having a priority in protection which is lower than that of the first conductor path; and
an external member having a tubular shape and accommodating the first conductor path and the second conductor path altogether so as to protect them,
wherein the external member has a form in which the first conductor path is positioned farther away from a road surface than the second conductor path within a predetermined range in a longitudinal direction thereof, and
wherein the external member has a ceiling wall, a bottom wall, a left wall, and a right wall, in which the ceiling wall has a larger radius of curvature than the bottom wall.
2. The wire harness according to claim 1 , wherein a portion of the wire harness corresponding to the predetermined range of the external member is formed according to a routing length on an underside of a vehicle floor.
3. The wire harness according to claim 1 , wherein a voltage value of the first conductor path is higher than that of the second conductor path.
4. The wire harness according to claim 1 , wherein the first conductor path includes two conductor paths and the second conductor path includes one conductor path.
5. The wire harness according to claim 1 , wherein the first conductor path includes three conductor paths and the second conductor path includes two conductor paths.
6. The wire harness according to claim 5 , wherein the three conductor paths of the first conductor path are aligned laterally side by side.
7. The wire harness according to claim 1 , wherein upon an event that a vehicle rides on a curb or in an event that a foreign matter comes to collide with the wire harness from a road surface side, the second conductor path having the lower priority in protection is affected before the first conductor path having the high priority in protection is affected.
8. The wire harness according to claim 7 , wherein the second conductor path functions as it were a shield for the first conductor path, and when the second conductor path is subjected to impact, the impact so received is absorbed and dispersed by the second conductor path.