| 摘要 |
<p>The fire alarm casing (30) has a fastener (31, 61) for securing it to a standard fuse mounting rail inside a cabinet (81, 82). The nose of a fuse protrudes through an opening (12) in the exposed main side (11) of the cabinet when the fuse is mounted on the rail. The casing also has a nose (32) protruding through this opening when the casing is mounted on the rail. The casing nose contains at least one opening (33, 34) and the part of the casing inside the cabinet also contains at least one opening (35, 36).</p> |
