PTC heating element: element intended for heating consisting mainly of positive temperature coefficient resistors that are thermally sensitive and have a rapid non-linear increase in resistance when the temperature is raised through a particular range. As the temperature increases, the resistance of the heating element of the PTC heating element increases. The relationship between temperature…
We are discussing here the second structure of the PTC heating element, PTC heating element structure please refer to the explanation of its definition. How is the creepage distance of the functional insulation at the location of the red circle in Figure 1 determined? We all know that NOTE 1 of TABLE 18 section has…
thermal link: thermal cut-out which operates only once and requires partial or complete replacement It is a temperature sensing device, but it can only be operated once, when the temperature is higher than its set value, it will disconnect, and after disconnection, the current can not pass through, so as to play the role of…
tool: screwdriver, coin or any other object that may be used to operate a screw or similar fixing means. I’d like to explain the intent of the standard, which defines a separate tool, in order to distinguish between operations that use a tool and those that do not. For example, if a tool is used…
