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(2)²úÆ·¹æ¸ñºÍÖ÷Òª¼¼ÊõÌØÐÔProduct Types and Main Technical Characteristics
±í 2-2£º JFB-¿Ú/3Ð͵çÈÈ´øÖ÷Òª¼¼Êõ²ÎÊý±íTable 2-2: Main Technical Parameters of JFB- ¿Ú /3 Type Electric heat cableÐͺÅType¶î¶¨µçѹRated Voltage(v)¶î¶¨¹¦ÂÊRatedPower(w/m)¾øÔµµç×èInsulation Resistance(M¦¸ /hm)µçÆøÇ¿¶ÈElectricity Intensity(v/min)¾øÔµ²ãÖÊÁÏInsulation Material²úÆ·ºÜ¸ßÄÍÎÂHighest Temp-erature(¡æ)·À±¬±ê¼ÇExplo-sion Proof LabelºÜСÍäÇú°ë¾¶Min.BendingRadius(mm)½éÖʺܸßά³ÖζÈHighestMaintenance Temperature of Media(¡æ)µ¥µçÔ´ºÜ´óʹÓó¤¶ÈMax. UseLengthof SinglePower(m)ÔöÇ¿ÐÍReinforcedJFB-30/3J38030¡Ý502750F46200ExeIIT4ÆÕͨÐÍCommon30ÔöÇ¿ÐÍReinforced35120320JFB-40/3J40100240JFB-50/3J5080190JFB-60/3J6060160(3)²úÆ·Ìص㼰ӦÓó¡ºÏProduct Characteristics and Applications
ÈýÏàµçÈÈ´ø³ýÓе¥ÏàµçÈÈ´øÏàͬÌصãÍ⣬ÁíÓÐÒÔÏÂÓŵ㣺Besides the above characteristics the three phase heating cables have following advantages:¢ÙÂʵÄÈýÏàµçÈÈ´øµÄºÜ´óÔÊÐíʹÓó¤¶ÈÊǵ¥ÏàµçÈÈ´øµÄÈý±¶¡£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.¢ÚÈýÏà´ø½ØÃæ´ó£¬´«Èȵ¼Ãæ»ý´ó£¬ÄÜÌá¸ß´«ÊäЧÂÊ¡£Bigger section area of three phase heating cable can broaden heat transmitting area and thisincreases the transmitting efficiency.ÈýÏಢÁª´øÒ»°ãÊÊÓÃÓÚ´ó¹Ü¾¶£¬¹ÜÍøϵͳ¹ÜÏߺ͹ÞÌåµÄ°éÈȱ£Î¡£Three phase parallel connection heating cables are suitable forthethermal insulation of pipes with big diameters, pipe lines in nets and tanks.
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