| SYWLY-75 Construction and Dimensions |
|
|
|
|
| SYWVLY-75 |
|
'-7 |
'-9(412) |
'-12(500) |
-13(Qr540) |
| Inner conductor mm |
|
1.66±0.02 |
2.15±0.02 |
2.77±0.02 |
3.15±0.02 |
| Insulator mm |
|
7.25±0.20 |
9.00±0.20 |
11.50±0.20 |
13.03±0.02 |
| External diameter of cable mm |
|
10.30±0.30 |
12.30±0.30 |
15.00±0.40 |
15.50±0.30 |
| Packing requirement |
wood roll |
500m/1000m |
500m/1000m |
500m/1000m |
500m/1000m |
|
|
|
|
|
|
| SYWLY-75 Consrtuction Electricial Perfomance |
|
|
|
| SYWLY-75 |
|
'-7 |
'-9(412) |
'-12(500) |
-13(Qr540) |
| Insulation resistance MΩ·km |
|
20000 |
20000 |
20000 |
20000 |
| Dielectrength of cable core)KV |
|
1.6 |
1.6 |
1.6 |
1.6 |
| Dielectric strength of sheath(KV) |
|
4 |
6 |
6 |
6 |
| Capacitance pF/m |
|
52 |
52 |
52 |
52 |
| Characteristic impedance Ω |
|
75.0±2.0 |
75.0±2.0 |
75.0±2.0 |
75.0±2.0 |
| Return loss (DB)min |
VHF |
23 |
23 |
23 |
23 |
| |
UHF |
20 |
20 |
20 |
20 |
| Attenuation constant dB/100m max |
50MHZ |
2.73 |
2.20 |
1.60 |
1.39 |
| |
200MHZ |
5.50 |
4.30 |
3.40 |
2.90 |
| |
300MHZ |
6.86 |
5.10 |
4.15 |
3.65 |
| |
450MHZ |
8.50 |
6.60 |
5.17 |
4.60 |
| |
550MHZ |
9.50 |
7.50 |
6.01 |
5.08 |
| |
750MHZ |
11.20 |
8.82 |
6.90 |
6.10 |
| |
800MHZ |
11.70 |
8.90 |
7.00 |
6.28 |
| |
860MHZ |
12.60 |
9.83 |
7.60 |
6.77 |
| |
1000MHZ |
13.20 |
10.30 |
8.00 |
7.20 |
