| 摘要 |
The building (1) has a connecting box (11) located in the vicinity of a down pipe (14). From the box, the cable (15) is fed through the down pipe wall, and downwards into the conduit connecting the down pipe to an adjacent clearing well (6). The cable is then fed through this well, and outwards towards a surface water pipe (16) laid under the road. - The pipe passes a road drain well (17) and is connected to the main drain well (5), along the wall of which the cable (15) is fed to a point located above the highest water level, where a special cable pipe (18) is fitted through the well wall and sealed in relation to it. The upper end of the cable pipe ends in a coupling box (9). A feeder cable (10) is also connected to the coupling box, passing through the cable pipe and well, and likewise is laid in the surface water pipe (16). (Provisional basic advised week 87/43)(/2) |
