r 物理发泡聚乙烯绝缘同轴电缆SYWV(Y)r
rr 产品描述r
rr 物理发泡聚乙烯绝缘同轴电缆是由单根园铜线或单根铜包钢线作为导体,由聚乙烯塑料经物理发泡构成绝缘,外导体由铝塑复合膜与镀锡圆铜线编织或铝塑复合膜与铝合金编织线构成,外面挤包聚氯乙烯或聚乙烯塑料构成。r
rr r
rr 适用范围r
rr 适用于1GHz以下闭路电视系统、共用天线电视系统、有线电视系统作干线、分支线及其他电子装置。r
rr r
rr 产品特点r
rr ❶阜新信通线缆有限公司生产的同轴电缆,具有更优良的高频性能。r
rr ❷采用物理发泡技术生产绝缘,保证电缆电气性能优良稳定、不易受潮。r
rr ❸阜新信通线缆有限公司生产的同轴电缆,它具有衰减低、一致性好的突出优点。r
rr ❹阜新信通线缆有限公司生产的同轴电缆的外导体铝带为双面涂塑,屏蔽性能更优,传输更稳定。r
rr r
rr 技术指标r
rr 有线电视系统射频同轴电缆结构尺寸:r
r r r r rr 规格型号r
rr 项目r
r r rr SYWV(Y)r
r r rr SYWV(Y)r
r r rr SYWV(Y)r
r r rr SYWV(Y)r
r r r r rr —75—5r
r r rr —75—7r
r r rr —75—9r
r r rr —75—12r
r r r r rr 内导体直径(mm)r
r r rr 1.00±0.02r
r r rr 1.66±0.02r
r r rr 2.15±0.03r
r r rr 2.77±0.03r
r r r r rr 发泡绝缘直径(mm)r
r r rr 4.80±0.20r
r r rr 7.25±0.25r
r r rr 9.00±0.25r
r r rr 11.50±0.30r
r r r r rr 铝塑复合膜+镀锡圆铜线r
r r rr r
r r rr r
r r rr r
r r rr r
r r r r rr 或铝镁合金丝编织(mm)r
r r rr ≤5.80r
r r rr ≤8.30r
r r rr ≤10.30r
r r rr ≤12.80r
r r r r rr 填充系数(最小)r
r r rr 0.42r
r r rr 0.42r
r r rr 0.42r
r r rr 0.42r
r r r r rr 护套直径(mm)r
r r rr 7.20±0.30r
r r rr 10.30±0.30r
r r rr 12.30±0.30r
r r rr 15.10±0.30r
r r r r rr r
r r r r rr 发泡聚乙烯绝缘同轴电缆电气性能:r
r r rr r
r r rr r
r r rr r
r r rr r
r r r r rr 规格型号r
rr 项目r
r r rr SYWV(Y)r
r r rr SYWV(Y)r
r r rr SYWV(Y)r
r r rr SYWV(Y)r
r r r r rr —75—5r
r r rr —75—7r
r r rr —75—9r
r r rr —75—12r
r r r r rr 绝缘电阻(MΩ·Km)20℃500V(直流)≥r
r r rr 5000r
r r r r rr 缆芯介电强度40~60Hz(KV)(有效值)≥r
r r rr 1.6 r
r r rr 1.6 r
r r rr 1.6 r
r r rr 1.6 r
r r r r rr 护套介电强度(KV)r
r r rr 浸水试验(40~60Hz)r
r r rr 2.0 r
r r rr 3.0 r
r r rr 5.0 r
r r rr 5.0 r
r r r r rr (有效值)≥r
r r rr 火花试验(40~60Hz)r
r r rr 3.0 r
r r rr 5.0 r
r r rr 8.0 r
r r rr 8.0 r
r r r r rr 特性抗阻(Ω)r
r r rr 75.0±3.0r
r r rr 75.0±2.5r
r r rr 75.0±2.5r
r r rr 75.0±2.0r
r r r r rr r
r r rr 50MHzr
r r rr 4.8 r
r r rr 3.2 r
r r rr 2.4 r
r r rr 1.9 r
r r r r rr 衰减常数r
r r rr 200MHzr
r r rr 9.7 r
r r rr 6.4 r
r r rr 5.0 r
r r rr 3.9 r
r r r r rr (dB/100m)≤r
r r rr 550MHzr
r r rr 16.8 r
r r rr 10.7 r
r r rr 8.5 r
r r rr 6.7 r
r r r r rr r
r r rr 800MHzr
r r rr 20.3 r
r r rr 20.0 r
r r rr 20.0 r
r r rr 20.0 r
r r r r rr 回波损耗r
r r rr VHFr
r r rr 20.0 r
r r rr 20.0 r
r r rr 20.0 r
r r rr 20.0 r
r r r r rr (dB)≥r
r r rr UHFr
r r rr 18.0 r
r r rr 18.0 r
r r rr 18.0 r
r r rr 18.0 r
r r r r r r r r r r r r r r r r r r r r r r r r r r rr r
rr 有线电视系统射频同轴电缆屏蔽性能技术要求:r
r r r r rr 序号r
r r rr 电缆类型r
r r rr 单位r
r r rr 被测射频r
r r rr 技术指标r
r r r r rr 屏蔽衰减r
r r rr 屏蔽效能r
r r r r rr 电缆甩动前r
r r rr 电缆甩动后r
r r r r rr 1r
r r rr 二屏蔽电缆r
r r rr dBr
r r rr 5MHzr
r r rr ≥60r
r r rr ≥60r
r r rr ≥55r
r r r r rr 50MHzr
r r rr ≥60r
r r rr ≥60r
r r rr ≥55r
r r r r rr 200MHzr
r r rr ≥70r
r r rr ≥70r
r r rr ≥65r
r r r r rr 500MHzr
r r rr ≥70r
r r rr ≥70r
r r rr ≥65r
r r r r rr 800MHzr
r r rr ≥70r
r r rr ≥70r
r r rr ≥65r
r r r r rr 1000MHzr
r r rr —r
r r rr ≥70r
r r rr ≥65r
r r r r rr 2r
r r rr 四屏蔽电缆r
r r rr dBr
r r rr 5MHzr
r r rr ≥85r
r r rr ≥90r
r r rr ≥85r
r r r r rr 50MHzr
r r rr ≥85r
r r rr ≥90r
r r rr ≥85r
r r r r rr 200MHzr
r r rr ≥90r
r r rr ≥95r
r r rr ≥90r
r r r r rr 500MHzr
r r rr ≥90r
r r rr ≥95r
r r rr ≥90r
r r r r rr 800MHzr
r r rr ≥90r
r r rr ≥95r
r r rr ≥90r
r r r r rr 1000MHzr
r r rr —r
r r rr ≥95r
r r rr ≥90r
r r r r r rr r
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