发热电缆
JFB 三相恒功率并联电热带
三根平行的绝缘铜线为电源母线，在内护套绝缘层外缠绕电热丝，并将该电热丝每隔一定距离分别依次与三根电源母线循环连接，在每二相间形成连续并联电阻。当母线通以三相电后，各并联电阻同时发热，因而形成一条连续的加热带。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.
(2)产品规格和主要技术特性Product Types and Main Technical Characteristics
表 2-2： JFB-口/3型电热带主要技术参数表Table 2-2: Main Technical Parameters of JFB- 口 /3 Type Electric heat cable型号Type额定电压Rated Voltage(v)额定功率RatedPower(w/m)绝缘电阻Insulation Resistance(MΩ /hm)电气强度Electricity Intensity(v/min)绝缘层材料Insulation Material产品很高耐温Highest Temp-erature(℃)防爆标志Explo-sion Proof Label很小弯曲半径Min.BendingRadius(mm)介质很高维持温度HighestMaintenance Temperature of Media(℃)单电源很大使用长度Max. UseLengthof SinglePower(m)加强型ReinforcedJFB-30/3J38030≥502750F46200ExeIIT4普通型Common30加强型Reinforced35120320JFB-40/3J40100240JFB-50/3J5080190JFB-60/3J6060160(3)产品特点及应用场合Product Characteristics and Applications
三相电热带除有单相电热带相同特点外，还有以下优点：Besides the above characteristics the three phase heating cables have following advantages:①率的三相电热带的很大允许使用长度是单相电热带的三倍。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.②三相带截面大，传热导面积大，能提高传输效率。Bigger section area of three phase heating cable can broaden heat transmitting area and thisincreases the transmitting efficiency.三相并联带一般适用于大管径，管网系统管线和罐体的伴热保温。Three phase parallel connection heating cables are suitable forthethermal insulation of pipes with big diameters, pipe lines in nets and tanks.
- 自限式电热带 自限温电伴热带
- QTVR2-CT型自限温电伴热带
- 电伴热带，卫生间供暖电热带
- 硅胶电加热带 硅橡胶电加热电缆
- JMI 加热电缆 伴热电缆
- JFBC 船用电热带 JFBC
- JPB并联式高温电热带
- JFC 恒功率串联电热带
- JFB 三相恒功率并联电热带
- 电热带 伴热带 自控温电伴热带