| 地址： |
浙江杭州临安市
钱王大街1438号 |
| |
| 电话： |
+86 571 63272888 |
| |
+86 571 63272988 |
| 传真： |
+86 571 63272668 |
| 邮编： |
311300 |
| 邮箱： |
wujian233
@126.com |
|
|
Physical Dimensions |
|
Component |
|
Standard Shield
|
tir-shield
|
Quad-Shield
|
|
|
(Dia.mm) |
(Dia.mm) |
(Dia.mm) |
|
Inner conductor |
1.29 |
1.29 |
1.29 |
|
Dielectric |
5.72 |
5.72 |
5.72 |
|
First Shield(Tape) |
5.90 |
5.90 |
5.90 |
|
Jacket(mm) |
8.10 |
8.20 |
8.64 |
| Steel Messenger |
Single |
1.83 |
1.83 |
1.83 |
| Dual |
2.77 |
2.77 |
2.77 |
|
Mechanical Characteristics |
| Minimum Breaking Strength of Messenger |
Dia.1.83mm |
166kgf |
| Dia.2.77mm |
818kgf |
|
Attenuation(20℃,≯dB/100m) |
|
Electricial Characteristics | |
|
Frequency(MHZ) |
Max value(dB/100m) |
|
5 |
1.5 |
|
55 |
4.1 |
|
211 |
7.7 |
|
270 |
8.8 |
|
300 |
9.3 |
|
330 |
9.8 |
|
400 |
10.8 |
|
45 |
11.5 |
|
550 |
12.8 |
|
750 |
15.2 |
|
870 |
16.5 |
|
1000 |
17.8 |
|
1350 |
20.02 |
|
1750 |
22.91 |
|
2150 |
25.54 | |
|
DC Resistance of inner conductor(Ω/km) |
40 CCS |
8.0 BC |
|
DC Resistance of outer conductor(Ω/km) |
26 AL |
13 TC |
|
Impedance(Ω) |
75 |
|
Shielding Effectiveness (≥dB) |
55MHz |
68 |
| 300MHz |
70 |
| 1000MHz |
70 |
|
SRL(≥dB) |
VHF 5-300MHz ≥ |
20dB |
|
|
UHF 300-960MHz ≥ |
20dB | | |
|
