選購商城：http://www.ahlh99.com/ProductList.asp，：（免長話），：。
廠家地址：安徽省天長市銅城綠環工業園
1）產品結構與工作原理
Product Structure and Working Principle
三根平行的絕緣銅線為電源母線，在內護套絕緣層外纏繞電熱絲，并將該電熱絲每隔一定距離分別依次與三根電源母線循環連接，在每二相間形成連續并聯電阻。當母線通以三相電后，各并聯電阻同時發熱，因而形成一條連續的加熱帶。
Three parallel insulation copper wires form power generatrix. Electric heating threads are wound around the inner jacket insulation layer ln every certain distance, the heating thread is welded in turn to the three power generatrix circularly. This makes every 2 phases into acontinuous parallel connection resistance. When the generatrix is connected to 3 -phase power supply, the every parallel resistance heats at the same time This makes a continuous heating belt.
Product Types and Main Technical Characteristics
表 2-2： JFB-口/3型電熱帶主要技術參數表
Table 2-2: Main Technical Parameters of JFB- 口 /3 Type Electric heat cable
型號
| 額定 電壓
| 額定 功率
| 絕緣 電阻
| 電氣 強度
| 絕緣層 材料
| 產品 zui高 耐溫
| 防爆 標志
| zui小彎 曲半徑
| 介質zui 高維持 溫度
| 單電源 zui大使 用長度
| |||||||||||
加強型
| |||||||||||||||||||||
| JFB-30/3J | 380 | 30 | ≥50 | 2750 | F46 | 200 | ExeIIT4 | 普通型
加強型
| 120 | 320 | |||||||||||
| JFB-40/3J | 40 | 100 | 240 | ||||||||||||||||||
| JFB-50/3J | 50 | 80 | 190 | ||||||||||||||||||
| JFB-60/3J | 60 | 60 | 160 |
（3）產品特點及應用場合
Product Characteristics and Applications
三相電熱帶除有單相電熱帶相同特點外，還有以下優點：
Besides the above characteristics the three phase heating cables have following advantages:
①率的三相電熱帶的zui大允許使用長度是單相電熱帶的三倍。
The most tolerable length of the three-phase heat cable is three times longer than the length of the single-phase heating cable of the same wattage.
②三相帶截面大，傳熱導面積大，能提高傳輸效率。
Bigger section area of three phase heating cable can broaden heat transmitting area and thisincreases the transmitting efficiency.
三相并聯帶一般適用于大管徑，管網系統管線和罐體的伴熱保溫。
Three phase parallel connection heating cables are suitable forthethermal insulation of pipes with big diameters, pipe lines in nets and tanks.
