| 摘要 |
THE INVENTION RELATES TO A HOUSING COMPRISING TWO HALF-SCHELLS (26-26a) FOR A SWITCHING DEVICE, SUCH AS ESPECIALLY A CIRCUIT-BREAKER, HAVING AN ELECTRIC ARC PATH (30) WITH TWO ELECTRIC ARC RUNNING RAILS (2a, 32) WHICH CONNECT TO CONTACT POINTS (7, 7'). A DEIONISING CHAMBER (34) COMPRISING A PILE OF QUENCHING PLATES (35) IS ARRANGED BETWEEN THE END SECTIONS OF SAID RAILS. A BLOW-OUT CHAMBER (36) PROVIDED WITH A BLOW-OUT OPENING (37) IS CONNECTED TO THE DEIONISING CHAMBER. SINGLE-ELEMENT WALLS (38) FORMED ON THE LOWER SHELL (26) AND SINGLEELEMENT WALLS (38a) FORMED ON THE UPPER SHELL (26a) ARE PROVIDED INSIDE THE BLOW-OUT CHAMBER (36), SAID WALLS (38, 38a) RESPECTIVELY EXTENDING UP TO THE CENTRAL PLANE (39) OF THE HOUSING AT THE MOST. VIEWED FROM THE HORIZONTAL PROJECTION, THE WALLS (38) FORMED ON THE LOWER SHELL (26) ARE EMBODIED IN A DIFFERENT MANNER FROM THOSE (38a) FORMED ON THE UPPER SHELL (26a) AND THE WALLS (38) FORMED ON THE LOWER SHELL (26) ARE STAGGERED IN SECTIONS IN RELATION TO THE WALLS (38a) FORMED ON THE UPPER SHELL (26a) AND ARE ALIGNED IN SECTIONS WITH SAID WALLS (38a) FORMED ON THE UPPER SHELL (26a). |
