| 摘要 |
PURPOSE:To prevent the increase in sliding resistance even under high moisture atmosphere for enabling the enhancement in current collecting characteristics, when sufficient moisture can be contained under high moisture conditions, by directly or indirectly heating brushes to raise the temperature to a prescribed temperature higher than the ambient temperature. CONSTITUTION:When a current collecting equipment is placed under a high moisture atmosphere exceeding approximately 80%, heat radiators 10 are started to irradiate radient heat to brushes 1, so that the temperature of the brushes 1 is raised to a prescribed temperature higher than the ambient temperature. Since the brushes 1 are raised to the prescribed temperature, moisture is not easily contained in the hygroscopic carbon which is included in the brushes, and even if moisture is contained, it is easily evaporated so as to maintain a low moisture value, thus the degree of dryness is improved, and the frictional coefficient between a trolley conductor 9 and the brushes at the time of sliding can be reduced to a lower value. |
