| 摘要 |
Heating elements (4, 5) are provided in the inside of a water container (1) with walls made of steel. In order to prevent corrosion, the water container (1) is allocated a sacrificial anode which consists of a pipe element (8) which is introduced in a liquid-tight manner between two sections (7a, 7b) of the water supply pipe (7). The pipe element (8) consists of a material which is inferior to steel in terms of the electrochemical series. In this way the galvanic voltages occurring have an effect particularly on this material. In order to prevent an escape of water in the area of the pipe element (8), this pipe element (8) is surrounded by a pressure-resistant tube element (9), whose ends are secured in a liquid-tight manner in each case on one adjacent section (7a and 7b) of the water supply pipe (7). <IMAGE> |
