Railway Cables

K26 LSZH 50/75Ω Coaxial Cables

Application

The 50Ω cables are HF transmission coaxial cables for GSM antennas, and the 75Ω cables are HF transmission coaxial cables for cameras (type KX6), and video surveillance (type 11 RTC). The Halogen-free cables are suitable for laid on hooks, and pulled through walls or through technical ducts.

Standards

● RATP K26
● Fire Performance: NF C 32070.2.2

Construction

Inner Conductors
50Ω cables:

Flexible Type (F)- solid copper coated aluminium (for 1/4″ , 3/8″ &1/2″ F conductor); red copper tube (for
7/8″ and 1'1/4 F conductor); corrugated red copper tube (for 1'5/8 F conductor).
Super Flexible Type (SF) - solid copper coated aluminium (for 3/8″ & 1/2″ SFconductor); helical corrugated
copper tube (for 7/8” SF conductor); copper wire (for 1/4″ SFconductor).
Extra Flexible (XF) – copper wire (for 1/4" XF conductor); solid copper coated aluminium (for 3/8" XF
conductor).

75Ω cables: solid red copper (for type 11 RTC) or red copper tube (for type KX6).

Dielectric
Cellular PE or natural PE (only for KX6 type).

Outer Conductor

50Ω cables: corrugated copper tube.
75Ω cables: copper braid.

Outer sheath
LSZH.

Electrical Characteristics at 20℃

50Ω Cables

Type of Cable
inch
1/4"F
3/8"F
1/2"F
7/8"F
1'1/4F
1'5/8F
Impedance
Ω
50
50
50
50
50
50
Attenuation
@10MHz
dB/100m
1.25
1.46
0.65
0.34
0.25
0.2
@150MHz
dB/100m
4.99
4.22
2.61
1.45
1.02
0.85
@200MHz
dB/100m
5.8
4.90
3.04
1.69
1.19
1.00
@450MHz
dB/100m
8.8
7.51
4.66
2.61
1.86
1.57
@900MHz
dB/100m
12.8
11.1
6.78
3.81
2.75
2.34
@1000MHz
dB/100m
13.5
11.6
7.18
4.04
2.93
2.49

@1500MHz

dB/100m

17.0

14.4

8.99

5.08

3.72

3.17

@1500MHz
dB/100m

18.3

15.5

9.64

5.45

4.01

3.42

Average Power Rating  

 

 

 

 

 

 

@10MHz
KW

5.79

7.23

13

28.0

41

57

@150MHz
KW

1.45

1.81

3.2

7.0

11

13

@200MHz
KW

1.25

1.56

2.75

6.0

9.0

11

@450MHz
KW

0.818

1.02

1.8

3.88

5.5

6.9

@900MHz
KW

0.566

0.70

1.25

2.65

3.83

4.49

@1000MHz
KW

0.533

0.663

1.18

2.50

3.60

4.20

@1500MHz
KW

0.426

0.53

0.947

1.99

2.82

3.22

@1700MHz
KW

0.398

0.494

0.884

1.85

2.61

2.96

Velocity of Propagation
%

85

88

88

88

88

88

 

Type of Cable
inch

1/4"SF

3/8"SF

1/2"SF

7/8"SF

1/4"XF

3/8"XF

Impedance
Ω
50 50 50 50 50 50
Attenuation

 

 

 

 

 

 

@10MHz
dB/100m

1.71

1.3

0.83

0.39

2.31

1.098

@150MHz
dB/100m

6.89

4.89

3.87

1.59

7.44

4.38

@200MHz
dB/100m

8.01

5.59

4.53

1.85

8.54

5.098

@450MHz
dB/100m

12.31

8.49

7.09

2.85

14.3

7.83

@900MHz
dB/100m

17.92

12.66

10.45

4.15

20.5

11.4

@1000MHz
dB/100m

18.98

13.5

11.09

4.4

21.83

12.1

@1500MHz
dB/100m

23.78

17.43

13.98

5.52

27.13

15.1

@1700MHz
dB/100m

25.51

18.91

15.03

5.92

29.5

16.2

Average Power Rating

 

 

 

 

 

 

@10MHz
KW

2.8

6.0

8.4

21.5

3.8

7.02

@150MHz
KW

0.7

1.52

2.1

5.4

0.9

1.76

@200MHz
KW

0.6

1.31

1.81

4.6

0.8

1.51

@450MHz
KW

0.39

0.86

1.18

3.0

0.51

0.99

@900MHz
KW

0.272

0.593

0.815

2.07

0.37

0.68

@1000MHz
KW

0.257

0.56

0.77

1.95

0.34

0.64

@1500MHz
KW

0.206

0.449

0.616

1.55

0.26

0.51

@1700MHz
KW

0.192

0.42

0.575

1.45

0.24

0.48

Velocity of Propagation
%

83

81

82

88

84

85

75Ω Cables

Type of Cable
inch
11 RTC
KX6
Impedance
Ω
75
75
@50MHz
dB/100m
2.5
8.13
@100MHz
dB/100m
3.6
11.73
@150MHz
dB/100m
4.6
14.73
@200MHz
dB/100m
5.4
16.92
@500MHz
dB/100m
8.5
27.0
@800MHz
dB/100m
10.5
35.1
@1000MHz
dB/100m
12.2
40.02
Velocity of Propagation
%
87
66

Mechanical and Thermal Properties

Minimum Bending Radius: 7.5×OD
Temperature Range:

50Ω cables: -40℃ to +85℃ (during operation); -20℃ to +60℃ (during installation);
75Ω cables: -20℃ to +85℃ (during operation); -10℃ to +60℃ (during installation).

Dimensions And Weight

50Ω Cables

Cable Code
Nominal Inner
Conductor Diameter
mm
Nominal Outer
Conductor Diameter
mm
Nominal Overall
Diameter
mm
Nominal Overall
Diameter
mm

1/4″ F Cable Type

RS/K26-F-HCAAYZ-50-6(1/4")

2.5

7.6

9.5

145

3/8″ F Cable Type

RS/K26-F-HCAAYZ-50-8(3/8")

3.3

9.5

11.5

204

1/2″ F Cable Type

RS/K26-F-HCAAYZ-50-12(1/2")

4.8

13.7

16.0

248

7/8″ F Cable Type

RS/K26-F-HCTAYZ-50-22(7/8")

9.0

24.8

27.75

575

1'1/4 F Cable Type

RS/K26-F-HCTAYZ-50-32(1'1/4)

13.0

35.7

39.5

1133

1'5/8 F Cable Type

RS/K26-F-HHTAYZ-50-42(1'5/8)

17.3

46.2

50.0

1631

1/4″ SF Cable Type

RS/K26-HRYZ-50-5(1/4" SF)

1.9

6.4

7.95

99

3/8″ SF Cable Type

RS/K26-HRCAYZ-50-7(3/8" SF)

2.8

9.6

11.15

159

1/2″ SF Cable Type

RS/K26-HRCAYZ-50-9(1/2" SF)

3.6

12.1

13.65

201

7/8″ SF Cable Type

RS/K26-HRCTYZ-50-22(7/8" SF)

9.4

25.0

27.5

550

1/4″ XF Cable Type

RS/K26-HRYZ-50-5(1/4" XF)

5.75

5.6

6.85

69

3/8″ XF Cable Type

RS/K26-HRCAYZ-50-7(3/8" XF)

2.76

8.0

10.1

111

*F = fl exible, SF = super fl exible, XF = extrafl exible

75Ω Cables

Cable Code
Nominal Inner
Conductor Diameter
mm
Nominal Outer Conductor
Diameter
mm
Nominal Overall
Diameter
mm
Nominal Weight
kg/km
11 RTC Cable Type
RS/K26-11RTC-BC80-H
1.7
7.85
10.3
115
KX6 Cable Type
RS/K26-KX6-BC80-H
0.6
4.85
7.2
66