| 摘要 |
A method of leading away static electricity in mutually joined plastic pipes of the kind intended for the transportation of gasoline or other hydrocarbons and with which the inner walls of the pipes are provided with an inner barrier layer. According to the method, an electrically conductive substance is mixed with the inner barrier layer of respective pipes so as to make the whole of the layer or longitudinally extending strings thereof electrically conductive. A sleeve-like body of conductive material is placed in the ends of two pipe-parts to be joined end-to-end, so as to internally bridge the intermediate joint; and a contact pressure is generated between the sleeve-like body and the inner surfaces of the barrier layers at the ends of the two pipe-parts so as to provide an inner, electrically conductive connection between the conductive barrier layers of the mutually joined pipe-parts. |
