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20055No.52005ElectricWire&Cable200510Oct.,200567(,215234):67,,67:;;;:TM248.2:A:167226901(2005)0520009204DesignandManufactureofCategory6and7CablesHUAIPing(HengtongGroup,GeneralPlantofOpticalfiberandElectricCommunicationsWiresandCables,Wujiang215234,China)Abstract:Thedesignessentialsandconstructionalcharacteristicsofcategory6and7cablesfordigitalcommunicationsarepresented.Theprocesscontrolandequipmentrequirementsaredescribed.Itisindicatedthatcategory6and7cableshavegreatpotentialmarkets.Keywords:categorycables;construction;processcontrol;market:2004212216:(1967-),,,.:[215234].1,,,()55,67,6250MHz,(),,250MHz,600MHz7(),266,52.5,,,YDPT1019-2001,6,6,6,,6:2.1665,250MHz,,,6250MHz,[1],,,61,,YDPT1019-20012.266,,,,,30%,50%164Pmm0.57(HDPE)Pmm1.02Pmm0.23Pmm816P%3050Pmm5.0Pmm150P%50100Pmm0.9Pmm6.8(PVC)6:;,,,,,,,6,,4,,,,,,,,373.176,,100m,7,7,600MHz,1.2GHz,(CATV),;,,7,,,73.27,,,,,2002IEC61156-5,77SSTP(),7227Pmm0.58P%25(22):LLDPEMDPE+HDPEPmm0.02Pmm0.06Pmm1.45Pmm2040P%3050Pmm130P%50100PVC:LLDPE;MDPE3.37,0120055No.52005ElectricWire&Cable200510Oct.,2005,22,,,,,,,;;,;,,,,46767,,4.1;,1%;0.002mm0.01mm1.5pFPm;96%;,,,,4.210%50mm,,0.5mm,10%4.3,10%,75mm4,,10%4,150mm5,:,:,,,,,0%50%,,,0%100%,,,,1GHz,,6,67,6,5,66,6,200566,2006,(13)1120055No.52005ElectricWire&Cable200510Oct.,2005,4,,,,,,,,,,3.2,,,,,,,3.3MT818-19992.5mm24mm2,,,,,,,,11()PMPa25482800206275PGPa50.9663.712.0P(gPcm3)1.448.9P%451035,8,2,,,,,,,,4,,,,,,,:[1].2[M].:,2001.(11)7,7,,,7,7,,,,,,,,,,:[1].[J].,2001,(6):20223.[2]YDPT1019-2001,[S].[3]IEC61156-5,MulticoreandsymmetricalpairPquadcablesfordigitalcommunication2part5:symmetricalpairPquadcableswithtransmissioncharacteristicsupto600MHz2Horizontalfloorwiring2sectionalspecification[S].[4]RafaelLaballeJr.Cat.5+andCat.6LANcablestheworldwidemarketsituationandnewtrends[J].WireTechnologyInternational.1997,(5):47251.3120055No.52005ElectricWire&Cable200510Oct.,2005