| 摘要 |
In connection with an arrangement in a drainage system, especially in connection with a drainage pipe (B) of originally electrically non-conductive material, for example plastic, it is according to the invention suggested that the pipes or a part of a pipe (10A) included in the drainage system (A) are provided with an electrically conductive layer (11A) for the connection of the inner layer (C) of the drainage system to the grounding system (J1). |
