| 摘要 |
<p>The invention relates to a low voltage AC triple-pole disconnector switch with increased functional safety. According to the invention, the triple-pole disconnector switch comprises some front contacts (CF) mounted by means of some support-insulators (Iz) on a rigid metal frame (CR) which ensures the mechanical strength necessary to a good functioning and which may be placed to the upper part of a pole (S), and some contact blades (Ct) firmly fastened on some back contacts (CS) mounted by means of some support-insulators (Iz) on a metallic rod (TM) which may rotate about its own axis, there resulting a mobile assembly (CS-M) of back contacts, which carries out the switching off or on of some electric circuits when it is actuated by an actuation mechanism (MA).</p> |
