Compensation Lead Used For Thermocouples (cable)

Jiangsu Chaoyang High-Temperature Cable Co.,Ltd is one of the leading China compensation lead used for thermocouples (cable) manufacturers,Website:http://www.jscables.com, equipped with one of the famous compensation lead used for thermocouples (cable) brands, welcome to wholesale good products from our factory.Jiangsu Chaoyang high temperature cable Co., Ltd.Compensation lead used for thermocouples (cable)The thermocouple is used to extend thermode, move the cold end of thermocouple. It connects with the display instrument to form a temperature measuring system. This product uses national standards GB/T4989-94 “compensation lead used for thermocouples” (equivalent to use international standards IEC584-3 “thermocouple the third part, compensation lead”). The insulation layer and protection layer are made of high quality imported fluorine plastics by an integral continuous extrusion new technology. The product has excellent acid, alkali, wear-resistant and incombustibility performance, also it can be immersed into water or oil for a long time. Using temperature is -60 ~ 205 ~ 260 ℃,which reached international advanced level. The products are mainly used in all kinds of temperature measuring device, also have been widely used in, petroleum, chemical industry, metallurgy , electrical power and other departments.Product diagrammatic sketch HFFBFPFB modelModel meaningsStandard number    Shield layer  (None mark)Core flexible wire (None mark for rigid line)Sheath material V  PolyvinylchlorideF46 Fluorinated ethylenepropyleneB  Alkali-free fiberglassF  PolytetrafluoroethyleneInsulating layer materialV  PolyvinylchlorideF46 Fluorinated ethylenepropyleneB  Alkali-free fiberglassF  PolytetrafluoroethyleneCore single core cross section  Core no (Single pair or muti- pair)    Tolerance class (None mark for general level)Thermal class(G,H)Model (RC,SC,KCA,KCB,NC,KX,EX,JX,TX)Technical IndicatorCompensation lead can be classified as ,SC,KC,KX,EX,JX,TX and NC according to products types.a)  The first letter of the model corresponds to the degree of the thermocouple.b)  Letter  X  indicates extension type compensation lead (model class).c)  Letter  C  indicates compensation type compensation lead(model class).Structure characteristics, insulating layer, sheath material, using temperatureR multi strand flexible wire core  P shielding typeInsulating layer and protective layerUsing temperatureMaterialsymbol-25~70-25~105PolyvinylchloridePVCFluorinated ethylenepropyleneFEP-60~205Solubility poly tetra fluoro ethylenePFA60~260Insulating layer and protective layerProtectivelayerInsulatinglayerAlloywireprotective layershieldinglayerInsulating layerAlloy wireUsing classification, tolerance class , protective layer color markUsing classificationMarktolerance class and protective layer color markGeneral classPrecision classGeneral useG(black)S(gray)heat-resistingH(black)S(gray)For example:For K type coupling compensation lead, its single line nominal cross section is 1.5mm2 .Compensation lead of normal used general level is indicated as KC-G-VV2 X 1.5GB/T 4989-94.compensation type compensation lead of heat-resisting used precision class is indicated as KCA-HS-FFP2 X 1.5GB/T 4989-94.Shielding flexible wire extension type compensation lead of heat-resisting used precision class is indicated as KX-HS-FFRP2 X 1.5GB/T 4989-94.Note: The insulation resistances between the wire core and the ones between wire core and shield of finished compensation lead should be no less than 5M at 20 .The finished compensation wire perform 5 multiple winding test at heat-resistant aging temperature around 275 (24 hours), under the voltage of 500 V/1 minutes without breakdown.Waterproof testing of heat resistant compensation lead: Removed 1.5m specimen from the finished product end exposed it into the thermostat of 40  2 . After 240 hours (10) days, the insulation resistances between the wire core and the ones between wire core and shield Heat compensation lead should be no less than 5M per meter.Acid resistance test testing of heat resistant compensation lead: Removed 1.5m specimen from the finished product end exposed it into the 95% sulfuric acid solution of 40  2 . After 240 hours (10) days, the insulation resistances between the wire core and the ones between wire core and shield Heat compensation lead should be no less than 5M per meter.Compensation lead technical requirements GB/T4989-94 standard, equivalent to standards IEC-584-3.