| 摘要 |
The invention relates to a long body, for example a gas-insulated electric line (1), the condition of which is tested by an electronic signal that is supplied to said body and can be received by a receiver unit. The electronic signal has a predefined duration and form. According to the method, the receiver unit receives signals, evaluates them in terms of duration and/or form and identifies said signals as the supplied signals or discards them as interference signals. |
