| 摘要 |
The present invention relates to a protection device for underground power transmission and distribution cables and, more specifically, to a support device for underground power transmission and distribution cables, which is installed in a power transmission and distribution tunnel type common duct formed underground to install cables underground and prevents damage to sheaths of the cables during expansion and contraction of the cables. The protection device for underground power transmission and distribution cables of the present invention has an advantage of enhancing the durability of a cable by preventing the damage to the sheaths of the cables by reducing friction with a tray during expansion and contraction of the cable. |
