SYWV（Y）-75 Four-shield Physical Foaming Coaxial Cable

电缆

　

Technical  Indices
-5 -7 -9 -12

  Size

diameter of  inner conductor(mm)

1.00±0.02 1.66±0.02 2.15±0.02 2.77±0.02

outside diameter of insulation(mm)

4.80±0.20 7.25±0.20 9.00±0.20 11.50±0.20


cable diameter(mm)

 7.20±0.30 10.30±0.30 12.30±0.30 15.00±0.30

Electric specification

insulation  resistance（KΩ.Km)

20000 20000 20000 20000


characteristic impedance(Ω)

75±3.0 75±2.5 75±2.0 75±2.0


dielectric intensity of insulation(KV)

1.6 1.6 1.6 1.6


dielectric intensity of protective sleeve(KV)

3 4 6 8

echo  loss
≥dB		 VHF 20 20 20 20
UHF 18 18 18 18

　

Attenuation  constant ≤dB/100m
frequency(MHz) -5 -7 -9 -12
50 4.38 2.74 2.14 1.62
200 8.71 5.50 4.15 3.23
300 10.99 6.86 5.15 4.15
400 12.61 7.93 6.11 4.87
450 13.50 8.50 6.64 5.17
550 15.12 9.50 7.60 5.86
650 16.80 10.40 8.26 6.41
750 17.97 11.30 8.82 6.91
800 18.60 11.70 9.19 7.20
900 19.98 12.59 9.84 7.67
1000 21.01 13.30 10.40 8.08

　

Shield attenuation
frequency(MHz) dB
5 ≥85
50 ≥85
200 ≥90
500 ≥90
800 ≥90

　

Jiangsu Shanhu Cable Co., Ltd.(C)2002