The collector - receiver - power supplier of the sliding contact line The collector (carbon brush) of the sliding contact line is   the main device for picking up electrical energy on the collection side in the   sliding contact line system. It directly conducts electrical energy to the electrical appliances   through the sliding contact   between the collector brush and the rail, thereby achieving mobile power supply of the system. The   collector of the sliding contact line consists of two parts: a tension device with a mechanical structure and a collector brush that slides directly in contact with the guide rail. The collector, receiver, power   supply and conductor of the sliding contact line. Multi-pole sliding contact line collector, single-pole sliding contact line collector, single-pole row sliding contact line collector, combined sliding contact line collector. (Industry: Sliding   contact line, sliding line, sliding conductor, sliding connection mobile power   transmission and supply)