Method and arrangement for de-icing a transparent window using an electric heating device

A method for de-icing a transparent window with an electric heating device, the method comprising, on a basis of a manual or automatically initiated de-icing process, the following steps:

• Step A):
• measuring a window temperature before an initial application of a first heating voltage of more than 100 volts, wherein
• i) the method is terminated when the window temperature exceeds a lower temperature threshold value,
• ii) or the first heating voltage of more than 100 volts is applied to the heating device over a first heating period of a maximum of 2 minutes, when the window temperature is equal to or less than the lower temperature threshold value, and wherein the first heating voltage and the first heating period are selected such that a first heating power of at least 2 kilowatts (kW) per square meter (m2) of window area is generated, and step B) is executed;
• Step B):
• measuring the window temperature after a beginning of the first heating period, wherein a de-icing process
• iii) is terminated when the window temperature reaches an upper temperature threshold value,
• iv) or step C) is carried out when the window temperature is lower than the upper temperature threshold value;
• and
• Step C):
• applying a second heating voltage of more than 100 volts to the heating device over a second heating period of a maximum of 2 minutes with the second heating voltage and the second heating period selected such that a second heating power of at least 2 kilowatts (kW) per square meter (m2) of window area is generated, and repeating step B);
• wherein in step A), duration of the first heating period is selected as a function of the window temperature measured in step A), with a shorter first heating period selected in case of a higher window temperature and a longer first heating period selected in case of a lower window temperature;
• and
• wherein in step C) duration of the second heating period is selected as a function of the window temperature measured in step B), with a shorter second heating period selected in case of a higher window temperature and a longer second heating period selected in case of a lower window temperature.