Abstract: A wire harness is arranged between a vehicle body and a sliding door in a vehicle, in which: a protector is mounted on a bent region of the wire harness having a shape in which a middle of the wire harness in a longitudinal direction is bent in a crank shape; the protector includes a groove having a shape corresponding to the bent shape of the wire harness and has a larger width than a radial size of the wire harness; a bottom surface of the groove has a hole into which a pin is detachably inserted, the pin constraining the wire harness in a state where the wire harness has looseness so as not to contact an inner angle portion at a bent site of the groove; and one side of the bent region of the wire harness is fixed to the protector using a fastening member.

Abstract: In a semiconductor relay system for supply a power source to a lamp load under the on/off control by a microcomputer using a semiconductor relay, a method of cutting off a circuit under an overcurrent, a first prescribed value is which is a current value higher than a rated load current for the load and a maximum current value supplied to the lamp load, and a second prescribed value is set which is a current value between said first prescribed value and said rated current value; the current value flowing through the lamp load is sampled at predetermined time intervals and comparing the current value thus sampled with the second prescribed value; and when a higher current than said first prescribed value flows through the lamp load, the current supplied to the lamp load is controlled within a prescribed range between said first prescribed value and said second prescribed value, and when the sampled current value higher that said second prescribed value is counted by a prescribed number of times, the sampled cu