| 摘要 |
<p>In the case of an electrical welding collar having a collar sleeve (2) consisting of thermoplastic material and having a heating conductor (3) which is embedded therein, an indicating device is provided in the form of recesses (10) which fill with material when the collar sleeve (2) is welded to the ends (8) of the line elements and thus indicate satisfactory welding. The recesses (10) are holes which are directed either axially on the inner wall (30) of the collar sleeve (2) or inwards from the outside (6) of the collar sleeve (2), and whose base (11) is located in the vicinity of the heating conductor (3). <IMAGE></p> |
