TV COAXIAL CABLE
DIGITAL RECEPTION
SCREENING ATTENUATION EN 50117 STANDARD
CLASS A
|
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 |
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 |
0,40 |
PEE |
1,80 |
LTA |
100% |
ALL |
77% |
PVC2 |
3,60 |
75 |
80% |
56 |
11,3 |
34,0 |
47,3 |
68,6 |
76,7 |
81,1 |
89,9 |
>28 |
>23 |
>18 |
>15 |
<5 |
>90 |
>85 |
>75 |
1,1 |
2,8 |
13,8 |
|||||
|
CW |
0,41 |
PEE |
1,95 |
LTA |
100% |
CS |
62% |
PVC2 |
3,50 |
75 |
80% |
56 |
11,0 |
33,1 |
46,0 |
66,9 |
74,8 |
79,0 |
87,5 |
>28 |
>23 |
>18 |
>15 |
<5 |
>85 |
>75 |
>65 |
4,7 |
- |
14,6 |
|||||
|
CU |
0,80 |
PEG |
3,50 |
LTA |
100% |
ALL |
54% |
PVC2 |
5,30 |
75 |
84% |
53 |
5,1 |
17,1 |
23,4 |
33,9 |
38,8 |
41,6 |
47,7 |
>32 |
>29 |
>26 |
>21 |
<10 |
>90 |
>75 |
>65 |
4,5 |
2,8 |
24,5 |
|||||
|
CU |
0,80 |
PEG |
3,65 |
LTA |
100% |
ALL |
52% |
PVC2 |
6,00 |
75 |
84% |
53 |
5,1 |
16,7 |
22,8 |
33,2 |
38,0 |
40,7 |
46,7 |
>29 |
>27 |
>24 |
>21 |
<10 |
>90 |
>75 |
>65 |
4,5 |
2,8 |
32,5 |
|||||
|
CU |
1,00 |
PEG |
4,60 |
LTA |
100% |
CS |
61% |
PVC2 |
6,80 |
75 |
84% |
53 |
4,2 |
13,5 |
18,5 |
27,4 |
31,0 |
33,1 |
38,2 |
>29 |
>27 |
>24 |
>21 |
<10 |
>90 |
>75 |
>65 |
15,3 |
- |
46,8 |
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Legend
|
CU |
Plain copper |
PEE |
Foam polyethylene |
|
CW |
Copperweld |
PEG |
Gas injected SKIN-FOAM-SKIN polyethylene |
|
CS |
Tinned copper |
LTA |
Aluminium+polyester+aluminium tape |
|
ALL |
Aluminium |
PVC 2 |
Polyvinyl - chloride non-contaminating |