| 摘要 |
PROBLEM TO BE SOLVED: To improve ease of handling by attaching a hollow gas valve to a through-hole protrudingly-formed at the side wall of a closure body, and then attaching an internal earth terminal and an external earth terminal to the gas valve. SOLUTION: A connection terminal e' to an internal earth line wired inside a closure body 1 with a nut 33 is fitted onto a hollow gas valve 31 which is air-tightly-attached to a through-hole protrudingly-formed at the top side wall of the closure body 1 and whose outer periphery has a threaded groove. The other connection terminal of an internal earth line (e) is fitted onto an earth bar 30. The connection terminal E' of an external earth line E is fitted onto the gas valve 31 with a nut 34 to earth the whole closure B for communication cable. It is thus possible to attain simplification of a closure B for communication cable and the increase in an effective space as well as reduction in the weight of the closure B for communication cable. |
