| 摘要 |
<p>A low voltage distribution system comprises a two-conductor track (10, 70) of which one conductor is an outer conductor formed by its casing (12, 72) and the other conductor is an inner copper strip (14) held by insulation (16). An adaptor (20) can be fitted anywhere along the track and interlocked by closing pivoted members (30) so that portions (36) displace resilient arms (26) outwardly to interlock lips (28) of the adaptor with lips (19) of the track. A fully rotatable contact assembly (40) includes a centre contact (44) inside a sleeve contact (46) as well as a lamp bracket (56) which rotates as one with the contact assembly so that wires (60) to the lamp never get twisted. For ease of mounting, a fixing device (74) comprises a rotatable member (76) which can be mounted to a support by a centre screw (78) and having a slot or opening (88) to receive a connecting piece (80) which is slidably connected to the back of the track casing (12, 72) by undercut tongue (82) and groove (84).</p> |
