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SYKV型聚乙烯藕状介质射频同轴电缆
SYKV type polythene cotes
root-shaped medium radio frequency coaxial cable
产品说明 |
PRODUCT INTRODUCTION |
SYKV型聚乙烯藕状介质射频同轴电缆是半空气绝缘的优质电缆。用于通讯具以下优点： 1、传输损耗低，工作频带宽 2、重量轻，便于敷设安兿/font> 3、电气性能稳定可靠 SYKV型同轴电缆适用于CATV，闭路电视等VHF和UHF信号的传输系统，在系统中作为干线，分支线和其他电子装置的反馈电线〿; |
With semi-air as insulation, SYKV type polythene cotus root-shaped medium radio frequency coaxial cable has the following features, when applied to telecommunication: 1.Low transmission loss wide working frequency band 2.Light weight, easy to install 3.Stable &reliable electric properties SYKV type coaxial cable are suit for the transmission system of VHF & UHF signals in CATV and closed circuit television, as feed lines of trunk lines, branch lines and other electronic equipment the system. The structure and electric properties are listed in table 3 and table 4. |
AYKV-75型电缆结构尺寿/font>
垿; 号SYKV- 75 |
-5 | -7 | -9 | -12 |
内导体inner conductor(mm) |
1.00 | 1.60 | 2.00 | 2.60 |
| 绝缘体insulation | 4.80 | 7.25 | 9.00 | 11.50 |
| 外导体outer conductor | 5.80 | 8.30 | 10.10 | 12.60 |
| 外护套over Jacket(mm) | 7.50 | 10.60 | 12.60 | 15.60 |
| 参考重量weight(kg/km) | 46 | 75 | 108 | 165 |
SYKV-75型电缆电器性能
| 型号SYWV(Y)-75 | -5 | -7 | -9 | -12 | |
| 绝缘电阻insulation resistance(MW.km) | 5000 | 5000 | 5000 | 5000 | |
| 介质强度dielectric strength(kV) | 1.6 | 1.6 | 1.6 | 1.6 | |
| 波速比wave velocity rate% | 80 | 80 | 80 | 80 | |
| 电容capacitance PF/M | 56 | 56 | 56 | 56 | |
| 特性阻抗impedance(W) | 75 | 75 | 75 | 75 | |
| 回波损耿dB)return loss | VHF(dB) | 20 | 20 | 20 | 20 |
| UHF(DB) | 18 | 18 | 18 | 18 | |
| 衰减常敷attenuation(±0.5%) (dB/100m) |
5(MHz) | 1.6 | 1.0 | 0.8 | 0.55 |
| 55(MHz) | 5.40 | 3.6 | 2.8 | 2.2 | |
| 83(MHz) | 6.6 | 4.4 | 3.6 | 2.7 | |
| 211(MHz) | 11.0 | 7.0 | 5.8 | 4.5 | |
| 300(MHz) | 13.0 | 8.6 | 7.1 | 5.4 | |
| 450(MHz) | 16.1 | 13.2 | 9.0 | 6.9 | |
| 500(MHz) | 17.0 | 12.0 | 9.3 | 7.5 | |
| 550(MHz) | 17.8 | 12.6 | 10.0 | 8.0 | |
| 865(MHz) | 24.0 | 15.2 | 12.5 | 10.0 | |
| 1000(MHz) | 26.0 | 17.0 | 14.0 | 11.5 | |
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