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1、12六、 LT、HT型自限式电热带 LT HT Self regulating heating cableLT、 HT型自限式电热带的基带系我公司引进美国NELSON公司产品, NELSON公司是世界著名电伴热产品制造厂商之一,本产品采用国际IEEE标准制造,产品水平据国际一流。本自限式电热带功率衰减小, 使用寿命长。 它能根据伴热温度调正其输出功率, 这种自控温特性在产品长度上处处存在,即使是电热带交叉安装,也不会产生交叉点过热。它适用于较复杂热场的伴热系统。LT、HT型自限式电热带适用的最高温度分别为85和185,最高流体维持温度分别为65和120的场合,并且可根据管道长度任意切割,正因为
2、它的自控温特性,所以伴热的热场比较均匀。它在工业上应用广泛,主要适用于电厂、海洋平台、石油化工厂、高层建筑的配套设施以及食品加工等,它们分普通型(/TC-),加强型(/T-)两种。加强型适合于有腐蚀性的场合。The products of based strip are imported from NELSON company in USA, one of the major electric surface heatingcompanies in the world. The products are manufacutred according to IEEE international
3、of standard, The products qualitycome to the recently world advanced stage.NELSONs products power drop(self-regulating) is very small and longlived, It can auto-adjust the power output tothe varying conditions along the pipe. Self regulating properties occurs at every point along the length of cable
4、, The selfregulating effect allows the cable to be overlapped without creating hot spots or burnout. It is suitable for requiring heating-trace in comprehensive heat field.LT(HT) is suitable for industrial applications where temperature excursions to 85 (185) or process temperaturemaintenance to 65
5、(120) may be experienced and can be cut at any point to fit pipework, Owing to self-regulatingproperties. It produce a uniform heat field. It has been widely used in power stations, off-shore installations, petrochemical,building services and food processing, It has ordinary range (/TC-) and strengt
6、hen range (/T-). strengthen range is suitablefor use in corrosive areas.1、 型号含义 Type number nomenclature例e.g:LT/TC-30:220V 30W/m : 低温普通型自限式电热带。 220V 30W/m Low-temp self-regulating cable HT/T-50:220V 50W/m : 高温加强型自限式电热带。 220V 50W/m High-temp self-regulating cable额定功率 watts : W/m (10)自限式电热带SRLT: 低温型 L
7、ow-temp range HT: 高温型 High-temp range/编织材料 TC : 镀锡铜丝编织 (普通型) Tinned copper braid (ordinary range) T : 镀锡铜丝编织加外护套 (加强型) Tinned copper braid and over jacker (strengthe range)母线 bus wire发热芯heating core护套outer insulation铜编织overbraid加强护套 oversheath电伴热产品 Introduction13额定电压 service voltage: 220V介电强度 dielec
8、tric test: 2.5kv/min绝缘电阻 insulation resistance 20M最高耐温 max withstand temperature: LT: 85 HT: 185尺寸(包括编织和外护套) Size : 11.7 5.4mm(LT 规格) 10.3 5mm(HT 规格)注: LT加强型的接线盒请选用CH型系列接线盒最小弯曲半径 minimum bend radius: 19mm最低安装温度 min install temp: -40最高维持温度 max maintenance temperature: LT: 65 HT: 120额定发热量 rated power output(10) LT: 30W/m,25W/m,15W/mHT: 60W/m,50W/m,40W/m,30W/m,25W/m,20W/m,10W/m4、 断路器(熔丝)规格 Fuse/circuit breaking sizing3、 热力值曲线 Heat output curves2、 技术指标 Rating data(LT 型)表 2-6(HT 型)表 2-7图 2-2 图 LT 型图 2-3 图 HT 型输出功率W/mWatts per metre heat outputWatts per metre heat output电伴热产品 Introduction输出功率W/m