BHFS series Conductor rail / Mobile power rail supply as new type of conductive device for construction elevator ,the surface of sliding contact line use high quality insulating material ,embedded 5 transmission aluminum conductors as transmission mother line ,configuration mobile flexible current collector, its structure is simple and compact ,safe and reliable ,save energy The line itself is 3.016 meter long (about the same height as two standard section ),with fixed parts installed directly to the standard section , its birth ,effectively solves the problem that have plagued customers for years for short device life ,easy to be stolen ,,high wind weather easy to fracture and affect safety construction