| 摘要 |
The present invention is a protective pipe for an underground power transmission cable, comprising: a plurality of unit pipe (10, 20); a combination block (30); flanges (12, 22); and stoppers (13, 23). The combination block includes a corrugated pipe (40); a bendable connection pipe (50); a connecting member (60); and a plurality of installation bolts (70). The corrugated pipe (40) includes a main body of the corrugated pipe (41); a cover member (42); and a ring shaped fixing member (43). The bendable connection pipe (50) includes a first and second connection pipe (51, 52); a first and a second rail having a dovetail shape (51a, 52a). The connecting member (60) consists of a first and a second fixing ring (61, 62) and sliders (61a, 62a). |
