| 摘要 |
A lagging device, comprises a flexible and insulating pad; anode plate and cathode plate arranged in parallel on the top surface of the pad; a plurality of PTC ceramic resistor arranged cross the anode plate and the cathode plate. Each resistor has anode and cathode in contact with the anode plate and the cathode plate, respectively. The lagging device further has an isolation layer covering at least the topside of the pad. The inventive lagging device can be easily applied to curve surface.
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