| 摘要 |
The device (10) has switch devices (50, 52) for switching on or switching off voltage to a set of electricity conducting, insulated heat conductors of a meander-like heating element (12). A control device (40) i.e. thermostat, operates the conductor to achieve an ambient temperature, and a connection unit (30) connects a heat conductor device (11) i.e. heating mat, to a voltage source. The switch devices are formed such that each of the heat conductors is individually applied with voltage or jointly in a predetermined number with common voltage at same time. |
