1)產(chǎn)品工作原理
Working Principle
　 JFC 串聯(lián)型電熱帶是一種由芯線作發(fā)熱體的電伴熱產(chǎn)品，由于芯線單位長度的電阻和通過的電流均恒定，所以整根電伴熱帶首尾發(fā)熱均勻，輸出功率恒定。
Jfc type series connection heating cable is electric heating trace product which core wires act as heater.As the resistance per unit length and the current are constant,the power output of the whole heating cable from beginning to end is meaning and constant.

(2)產(chǎn)品規(guī)格和主要技術特性
Product Types and Main Technical Characteristics

表 2-3： JFC-口/3型電熱帶主要技術參數(shù)表
Table 2-3: Main Technical Parameters of JFC- 口 /3 Heating Cable

　　★注： 實際選用時應根據(jù)管道長度、散熱量、工作電壓和芯線數(shù)，計算芯線截面而定。
Note:When actually applying,choose suitable type cable according to the pipe lenght,heat loss,work voltage,number of core wires.ａnd core wire's section areas.

(3)產(chǎn)品應用場合
Applications
　　主要適用于長距離和超長距離單一管線的伴熱保溫，一個電源點***大使用長度為幾百米到數(shù)千米。
Mainly applying to thermal insulation of single long legnth pipe,The longest use length with one power suppply circuit from hundreds meters to thousands meters.