1)產品結構與工作原理 Product Structure and Working Principle 電源母線為二根平行絕緣銅線，在內絕緣層上纏繞電熱絲，并將電熱絲每隔一定距離與母線連接，形成連續并聯電阻。母線通電后，各并聯電阻發熱，因而形成一條連續的加熱帶。 The power generatrix wire is 2 parallel insulative copper wires. Heating threads are wound around the inner jacket insulation layer. Every certain distance the heating thread is welded to the generatrix,which makes the continuous parallel connection resistance. When the generatrix is powered, the parallel connection resistance begin to heat. This makes a continuousheating belt. 我公司電伴系列產品符合GB19518.1-2004標準規定，并取得防爆合格證和生產許可證。 The series of our product’s comply witn tne rule of National Stanard, Ana Manufaceure license ana Explosion Proof Certificate have also been obtainea, (2)產品規格和主要技術特性 Product Types and Main Technical Characteristics 表 2-1： JFB-口/2 型電熱帶主要技術參數表 Table 2-1: Main Technical Parameters of JFB- 口 /2 Type Electric heat cable 型號 Type 額定 電壓 Rated Voltage (v) 額定 功率 Rated Power (w/m) 絕緣 電阻 Insulation Resistance (MΩ /hm) 電氣 強度 Electricity Intensity (v/min) 絕緣層 材料 Insulation Material 產品 較高 耐溫 Highest Temp- erature (℃) 防爆 標志 Explo- sion Proof Label 小彎 曲半徑 Min. Bending Radius (mm) 介質 高維持 溫度 Highest Maintenance Temperature of Media (℃) 單電源 較大使 用長度 Max. UseLength of Single Power (m) 加強型 Reinforced JFB-10/2J 220 10 ≥50 2200 F46 200 ExeIIT4 普通型 Common 30 加強型 Reinforced 35 120 330 JFB-20/2J 20 110 160 JFB-30/2J 30 90 110 JFB-40/2J 40 70 80 (3)產品特點及應用場合 Product Characteristics and Applications 恒功率電熱帶單位長度的發熱量恒定，使用的電熱帶越長，輸出的功率越大。該電熱帶在現場能按實際需要長度任意剪切，并具有柔軟性，可以緊貼管道表面敷設。電熱帶外層的編織層能起到傳熱和散熱的作用，提高電熱帶的整體強度，同時還能用作安全接地線。 The heat output per length unit out of the constant wattage heating cable is fixed and constant.The longer the heating cable, the stronger the power is output. The electric heating belt can be cut flexibly according to the actual needs. And it is flexible and can be laid closely on the pipe surface. The outer brade layer can execute the function of heat transmitting and radiating, to enhance the general intensity of the heating belt. It can also be earthed. 一般用于小管線或管網系統短管線的伴熱保溫。 Itiscommonly used for thermal insulation of the small pipes or the short pipes of the pipe