Line installation device for a high-voltage battery of a motor vehicle, line arrangement, high-voltage battery and motor vehicle

A line installation device is provided for a high-voltage battery of a motor vehicle for installing lines of the high-voltage battery on at least one battery module of the high-voltage battery. At least one line clip retains at least one first line in the form of an electrical line and retains at least one second line in the form of a coolant line. The line clip is designed to guide the lines as a line bundle over a side of the at least one battery module having degassing openings of battery cells of the at least one battery module. The line clip has a refractory material for protecting the lines against a hot gas passing out of the degassing openings.