| 摘要 |
<p>In order to enable a switch to be shipped to a customer, ready for termination at his premises, the housing or a lid (2) thereof has a through-hole (3) for the clamping screw (1) to enter a threaded hole (4) in the terminal block (5). The threaded hole has been filled with interference material produced from an inwardly projecting annular lip (7) around the housing through-hole (3). The screw is turned fully home, then backed-off by a predicted number of turns, so that its end (9) just enables clamping wire (6) to be inserted; or alternatively is screwed in by a predicted number of turns, to achieve the same position of its end (9).</p> |
