| 摘要 |
An arrangement for converting electrical energy to heat energy, comprising a resistance wire (16), which can be connected to an electrical energy source, and a covering (11, 18) which screens the wire off from the environment. The covering comprises an electrically insulating sleeve (18) surrounding the resistance wire (16), and a plate-shaped support (11) cast from concrete and surrounding the sleeve. A method for producing the arrangement comprises casting a first concrete plate half with a channel (20) designed for drawing through of the resistance wire (16) and its sleeve (18). Thereafter, the resistance wire is placed with its sleeve in the channel (20) and a second concrete plate half is cast on top of the first one. |
