| 摘要 |
<p>This unit comprises two independent rectangular prismatic parts, fitted into each other by superposition, the top or head of the unit involving a flap cover articulated on one of its sides, which carries on its top face, a handle for activation and on the lower face, the continuity bridges. The continuity is established among the service and the couple terminals, two by two, in such a manner, that when the cover is rotated during the opening movement it carries said continuity bridges with it, simultaneously emerging from end grooves for insertion of said service and couple terminals, remaining joined to the cover and the latter, to the head of the unit by means of its hinge. <IMAGE></p> |
