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1． 要求Demands
2.结构（符合下表）Specifications( In conformity with following table)
|
内导体 Inner conductor |
1.00±0.01mmCCS |
铜包钢导电率为18% CCS rate of velocity 18% |
|
|
绝缘体 Insulation |
4.8±0.1mm |
重量控制为5.8~6.7g/m Weight control about 5.8~6.7g/m |
|
|
外导体Out conductor |
铝箔 Al foil |
单面铝箔 Single Foil Tape |
厚度为0.04±0.005mm Thickness 0.04±0.005mm |
|
编织 Braiding |
4*16/0.12±0.005mm |
4~6 mm/网格 |
|
|
护套 Out jacket |
6.80±0.1mm |
65度。见护套的技术指标。 Look at the technical of out jacket |
|
3.电性能（见下表）Electronic performance( In conformity with following table)
|
名称Type |
特性阻抗（Ω）Impedance |
衰减常数Attenuation |
|
|
|
(≤DB/100M) |
||
|
SYWV-75-5 |
75±2 |
5MHz |
4.2 |
|
55MHz |
5.3 |
||
|
211MHz |
10.0 |
||
|
450MHz |
14.4 |
||
|
550MHz |
16.2 |
||
|
750MHz |
19.0 |
||
|
865MHz |
20.6 |
||
|
1000MHz |
22.2 |
||
