TV COAXIAL CABLE
DIGITAL RECEPTION
SCREENING ATTENUATION EN 50117 STANDARD
CLASS A+ = >95 dB - >85 dB - >75 dB
|
|
CONDUCTOR |
DIELECTRIC |
SCREEN |
SHEATH |
ELECTRICAL PROPERTIES |
ATTENUATIONS |
STRUCTURAL RETURN |
SCREENING |
WEIGHT |
||||||||||||||||||||||||||
|
IMPEDANCE |
VELOCITY |
CAPACITANCE |
dB/100 m. ( 20 °C ) |
LOSS dB |
EFFECTIVENESS |
COPPER |
ALU. |
TOTAL |
|||||||||||||||||||||||||||
|
TYPE |
ø MM |
TYPE |
ø MM |
TYPE |
COVER. |
TYPE |
COVER. |
TYPE |
COVER. |
TYPE |
COVER. |
TYPE |
ø MM |
RATIO |
50 |
470 |
862 |
1750 |
2150 |
2400 |
3000 |
30 ÷ 470 |
470 ÷ 862 |
862 ÷ 2150 |
2150 ÷ 3000 |
5 ÷ 30 |
30÷ 1000 |
1000÷ 2000 |
2000 ÷ 3000 |
KG./KM. |
|||||
|
Ω |
% |
pF/m |
MHz |
MHz |
MHz |
||||||||||||||||||||||||||||||
|
CU |
1,00 |
PEE |
4,60 |
LAS |
100% |
ALL |
57% |
LTA |
100% |
ALL |
40% |
LSZH |
7,60 |
75 |
84% |
53 |
4,4 |
13,9 |
19,5 |
29,1 |
32,8 |
35,2 |
40,5 |
>33 |
>31 |
>25 |
>22 |
<2,5 |
>95 |
>85 |
>75 |
7,0 |
3,9 |
49,7 |
|
|
|
CU |
1,13 |
PEE |
4,85 |
LAS |
100% |
CS |
40% |
LTA |
100% |
CS |
37% |
PVC2 |
7,00 |
75 |
84% |
53 |
4,3 |
13,2 |
18,5 |
27,6 |
31,0 |
33,1 |
38,0 |
>31 |
>30 |
>27 |
>24 |
<2,5 |
>95 |
>85 |
>75 |
19,1 |
47,8 |
|
|
|
CU |
1,15 |
PEE |
5,10 |
LAS |
100% |
CS |
80% |
- |
- |
- |
- |
PVC2 |
6,80 |
75 |
84% |
53 |
3,9 |
12,5 |
17,4 |
26,2 |
29,5 |
31,6 |
36,2 |
>33 |
>31 |
>25 |
>23 |
<2,5 |
>95 |
>85 |
>75 |
25,0 |
51,7 |
|
|
|
CU |
1,15 |
PEE |
5,10 |
LAS |
100% |
CS |
90% |
- |
- |
- |
- |
PVC2 |
6,80 |
75 |
84% |
53 |
3,9 |
12,5 |
17,4 |
26,2 |
29,5 |
31,6 |
36,2 |
>33 |
>31 |
>25 |
>23 |
<2,5 |
>95 |
>85 |
>75 |
28,7 |
55,4 |
|
Legend
|
CU |
Plain copper |
LTA |
Aluminium+polyester+aluminium tape |
|
CS |
Tinned copper |
LAS |
Aluminium+polyester+aluminium adhesive tape |
| ALL | Aluminium |
PVC 2 |
Polyvinyl - chloride non-contaminating |
|
PEE |
Foam polyethylene |
LSZH |
Flame retardant non- corrosive thermoplastic free of halogens |