DUCT STRUCTURE FOR BUS DUCT

摘要

PURPOSE: A duct structure for a booth duct is provided to improve economical efficiency by omitting coupling devices. CONSTITUTION: A booth duct comprises a first duct(61), a second duct(62), and insulated conductors(21,22,23). The booth duct comprises elastic packings(71,72) of a rubber type. The first duct and second duct form spot symmetry based on the central point of a cross section. The first duct and second duct comprise an upper arm(101), a lower arm(102), and a rod arm(103). The upper arm, lower arm, and rod arm comprise a first hook and a second hook.