Application
用于数据和视频传输的同轴电缆,专为安装在船舶及其他海洋环境中而设计。其钢丝编织铠装符合电磁兼容性指令的要求。该设计与RG 12相同,但在电气性能方面稍有提升。
Construction
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Inner conductor
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Solid bare copper
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Inner conductor diameter
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1.63 ± 0.01 mm
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Insulation
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Foam PE
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Insulation diameter
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7.11 ± 0.10 mm
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Screen
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Al-polyester-Al tape 100 % optical coverage
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Outer conductor
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Tinned copper wire braid ≥95%
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Inner jacket
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SHF1 or SHF2 or SHF2 MUD
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Inner jacket diameter
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10.2 ± 0.30 mm
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Armour
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Galvanized steel wire braid (GSWB) or Tinned copper wire braid (TCWB)
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Outer jacket
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SHF1 or SHF2 or SHF2 MUD
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Outer jacket color
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Black or per request
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Outer diameter
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13.5 ± 1.0 mm
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Electrical characteristic(@20℃)
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Impedance
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75 ± 3Ω
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Velocity
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87%
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Capacitance
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51.0 pF/m
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Insulation resistance
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≥5000 MΩ /km
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Environmental properties and fire performances
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Halogen free
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IEC 60754-1&2
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Smoke-density
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IEC 61034-1&2
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Flame retardant
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IEC 60332-1-2, IEC 60332-3-22
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Oil resistant
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IEC 60092-360
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UV resistant
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UL 1581
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Mechanical characteristics
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Temperature (operation)
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-30 to + 80 °C
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Temperature (installation)
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-15 to + 50 °C
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Minimum bending radius (operation)
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5 x O.D.
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Minimum bending radius (installation)
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10 x O.D.
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Attenuation nominal
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Frequency
(MHz)
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5
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55
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250
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300
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350
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400
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450
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500
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550
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750
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1000
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1500
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2000
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3000
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Attenuation
(dB/100m)
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1.3
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3.2
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6.7
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7.4
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7.9
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8.5
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9.0
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9.5
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10.0
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12.0
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14.3
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18.3
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21.3
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27.3
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*Maximum attenuation value shall be 105% of the nominal attenuation value
Structural return loss
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MHZ
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dB
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5-1000
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≥23
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1000-2000
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≥20
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2000-3000
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≥18
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