| 摘要 |
An underground distribution line connector for distributing an extra-high voltage is provided to maintain electric connection between connection terminals regardless of extraction/contraction of a power line due to a temperature change. A connection device(10) includes a protective case(11), a first connection terminal(12), and a second connection terminal(13). The protective case is installed inside an underground pipe. A tip end part(12a) of the first connection terminal is inserted in an insertion groove(11a) of the first connection terminal of the protective case. A back end part of the first connection terminal is fixed to a power line inserted into a distribution panel. A tip end part(13a) is inserted in an insertion groove(11b) of the second connection terminal of the protective case. A back end part(13b) of the second connection terminal is fixed to the power line which drawn from the distribution panel. A fixing device(20) includes a fixing bar(22) and a solenoid(21). The solenoid horizontally moves the fixing bar. A switch(30) controls ON/OFF of the solenoid. |
