| 摘要 |
<p>A protective device (10) for use with DC-powered electrical equipment (14) and including a main electrical switch (16) in series along at least one DC power supply line (18), and a series combination of a secondary electrical switch (22) connected in series with a resistance (24), the series combination (18, 22, 24) being connected in parallel to the main electrical switch (16).</p> |
