The conductive body of the Double-Arm Current Collector 1600A is an aluminum profile with an "H" shaped cross-section, hence it is also called "H" type energy-saving sliding wire device. Energy saving is relative to the sliding contact line mainly made of angle steel, as the loss of electrical energy during transmission is greatly reduced. The resistivity of aluminum is much lower than that of steel, and its specific gravity is also smaller. Rolling aluminum into an "H" shape improves overall rigidity and strength while ensuring a certain conductive cross-sectional area. However, the surface hardness of aluminum is low, which greatly extends the service life.
