WCSF Raychem heat-shrinkable heavy-wall flame-retarded tubing ...

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WCSFHeat-shrinkable heavy-wall flame-retarded tubingfor nuclear environmentsRaychem WCSF tubing is a heavywall,flame-retarded, heat-shrinkabletubing. It is pre-coated with a hotmelt, radiation-resistant adhesive toprovide a positive environmental seal.It is designed for electrical insulatingup to 1000 V and general purposesealing applications where flameretardancy, radiation resistance andsevere environmental performanceare required.WCSF tubing is suitable for a widerange of jointing or connection applicationsfor Class 1E wire and cablesystems in accordance with IEEE 383.Each connection is individually insulatedand sealed. Additionally, thesleeves can also be used for a widerange of related applications includingsealing, oversheath replacement andstrain relief throughout the plant.They can also be supplied as kits ofcomponents for specific applications.WCSF tubing is already qualified fora 60-year service life to take intoaccount the requirements of the thirdgeneration of nuclear power plants.The heat-shrinkability of TycoElectronics‘ Raychem WCSF tubingprovides fast and easy installation,positive visual inspection and apre-engineered insulation thicknessto assure consistent installation.WCSF tubing is supplied under thecomprehensive Tyco Electronics´Raychem Quality Assurance Programmewith certified documentationto meet industry requirements forsafety related electrical equipment.WCSF properties Test method RequirementTensile strength ISO 37 8.2 N/mm 2 min.Ultimate elongation ISO 37 250 % min.Density ISO 1183/3 Method A 1.35 g/cm 3 max.Accelerated ageing 200 h at 175° C ISO 1881600 h at 150° CTensile strength ISO 37 7 N/mm 2 min.Ultimate elongation ISO 37 100 % min.Low temperature 4 hours at – 55° C ASTM D2671 no crackingflexibilityProcedure CFlammability ICEA S-19-81 Sec. 6. 19.6 self-extinguishing in < 1 minDielectric strength nominal wall IEC 60243/1+2 75 kV/cm min.thickness 2.5 mmVolume resistivity IEC 60093 1 x 10 13 Ωcm min.Water absorption ISO 60062 < 0.5 % after 24 h at 23° + – 2°CCorrosive effect 16 h at 135° C ASTM D2671 Procedure A no corrosionHeat ageing 200 h at 175° C Raychem internaland radiation followed by 50 Mrad test methodgamma-radiation(0.5 – 1.0 Mrad/h)followed by:Tensile strength ISO 37 5.5 N/mm 2 min.Ultimate elongation ISO 37 50 % min.Additional properties Further details are given in Raychem specification PPS 3010.
WCSFPerformanceFlammabilityThe product has passed the IEEE1202, Section 7.2 (IEEE 383) FlameTest at both 70,000 and 210,000BTU/hour (Test Report EDR 5348).Heat ageing40 and 60-year life at 90°C establishedusing the Arrhenius method(Test Report EDR 5331).RadiationFunctional operability has beenverified after 2180 kGy (218 Mrad)of gamma exposure (Test reportEDR 5336 & EDR 5389).LOCAWCSF tubing has been tested toLOCA/HELB profiles based on theguidelines of IEEE 323 and 383(Test Report EDR 5336 & EDR 5389).Key test parameters include:• 40 and 60 year thermal agingat 90 °C• 2180 kGy (218 Mrad) radiationexposure• 30 day LOCA test• 30 day chemical spray• Double peak profile with:max. temperature 218° Cmax. pressure 8 bar (120 psig)QualificationIndividual qualification tests forspecific customer applications arethe responsibility of the user.LOCA profilesTemperature °F (°C)Pressure psig (MPa)450°(232°)400°(204°)350°(177°)300°(149°)250°(121°)200°(93°)150°(66°)100°(38°)140(0.97)120(0.83)100(0.69)80(0.55)60(0.41)40(0.28)Temperature profile5 10 5 100 0Minutes24Pressure profile68 10 12 14 16 18 20 22HoursTime24 4 8 12 16 20 24 28 32Days20(0.14)0(0)5 10 5 100 02468 10 12 14 16 18 20 22 24 4 8 12 16 20 24 28 32Minutes Hours DaysTime
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WCSF Raychem heat-shrinkable heavy-wall flame-retarded tubing ...

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