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Coaxial Cables

 

Type of Coaxial Cables

 

Leaky Coaxial Cables (RADIALCX) can be laid at the places in which radio wave can not cover, such as tunnel or basement, as an auxiliary communication.

 

 

Leaky Coaxial Cable

1. Inner conductor-Corrugated copper tube /Copper tube/Copper clad aluminum wire
2. Dielectric –Foam polyethylene
3. Outer Conductor-Slot Copper/Aluminum tape
4. Sheath-Low Smoke Free Halogen compound

 

Low transmission loss
Low reflection loss  
Characteristic impedance is 50 ohm
Light weight, easy to delivery and installation
With low smoke, halogen free and flame retardant performance 
Comply the certification of Taiwan national fire agency,ministry of the interior.

 

 

1/2”、7/8”、1-1/4”、1-5/8” as following :
 
Construction

Item

Specification

RADIALCX 1/2”

RADIALCX 7/8”

RADIALCX 1-1/4”

RADIALCX 1-5/8”

Inner conductor

Material
Dia(mm)

Copper clad aluminum wire

Copper tube

Copper tube

Corrugated copper tube

4.9

9.1

13.2

17.3

Dielectric

Material

Foam polyethylene

Dia(mm)

12.5

22.5

32.5

42.5

Outer conductor

Material

Slot copper/Aluminum tape

Dia(mm)

13.0

23.0

33.0

43.0

Sheath

Material

Low smoke free halogen compound

Dia(mm)

15.0

28.7

38.1

48.0

Cable weight (kg/m)

0.34

0.77

1.16

1.50

Cable identification
PACIFIC RADIALCX 7/8” CFC FR 50 OHM MMYY IEC 60332-1 IEC 60332-3 xxxM
(1) (2) (3) (4)   (5) (6) (7) (8) (9)
(1) Name of Pacific Electric Wire & Cable Co. Ltd. (6) Characteristic impedance
(2) Name of PEWC leaky coaxial cable product (7) Year and month of manufacturing
(3) Size of cable (8) Standard which is complied
(4) Material of inner conductor ,dielectric and outer conductor (9) Cable length
(5) Material of sheath    
 
Mechanical properties

Item

Specification

RADIALCX 1/2”

RADIALCX 7/8”

RADIALCX 1-1/4”

RADIALCX 1-5/8”

 Min. Bending radius (mm)

125

250

380

700

Max. Tensile force(kgf)

110

140

170

170

Clamp spacing(M)

0.5

0.9

1.3

1.5

Temperature range

-40℃~+60℃

-40℃~+60℃

-40℃~+60℃

-40℃~+60℃

 
Electrical properties(at 20℃)

Item

Specification

RADIALCX 1/2”

RADIALCX 7/8”

RADIALCX 1-1/4”

RADIALCX 1-5/8”

Inner conductor resistance(Ω/km)

1.6

1.0

0.8

0.8

Outer conductor resistance(Ω/km)

5.0

3.0

1.5

1.5

Insulation resistance(MΩ-km)

>1000

>1500

>1500

>1500

Capacitance(pF/m)

75

75

75

75

Velocity of propagation (%)

88

88

88

88

Impedance(Ω) @200MHz

50

50

50

50

VSWR

<1.5

<1.5

<1.5

<1.5

Attenuation(dB/100m)

Table 1. Table 1. Table 1. Table 1.

Coupling loss(dB)

Table 2.

Table 2.

Table 2.

Table 2.

 
Table 1 Attenuation (Nominal)

Freq.
MHz

(dB/100m)

1/2”

7/8”

1-1/4”

1-5/8”

75

2.17

0.75

0.70

0.60

150

3.10

1.23

0.97

0.77

450

5.74

2.79

2.19

1.50

800

8.78

3.83

3.01

2.10

870

9.24

4.51

3.55

2.24

900

9.42

4.56

3.59

2.25

960

9.74

4.74

3.73

4.24

1800

21.98

8.99

7.07

4.50

1900

22.72

9.49

7.46

4.71

2000

23.45

9.65

7.59

5.25

2200

25.48

11.54

9.08

7.40

2400

27.93

15.00

11.80

8.27

※ The maximum value shall not exceed 115%of nominal value.
 
Table 2 Coupling loss

Frequency
MHz

Specification (dB)

 

RADIALCX
1/2”

RADIALCX
7/8”

RADIALCX
1-1/4”

RADIALCX
1-5/8”

75

50%

54

55

55

64

95%

65

66

61

78

150

50%

61

62

60

74

95%

72

65

69

82

450

50%

68

75

68

80

95%

79

84

76

90

800

50%

69

69

68

79

95%

82

82

78

89

870

50%

73

73

69

81

95%

84

84

78

90

900

50%

70

70

69

77

95%

79

79

78

90

960

50%

72

72

69

80

95%

83

83

78

90

1800

50%

63

63

69

72

95%

74

74

78

84

1900

50%

64

64

69

72

95%

73

73

78

82

2000

50%

66

66

69

71

95%

72

72

78

83

2200

50%

62

62

69

71

95%

71

71

78

83

2400

50%

64

64

69

69

95%

75

75

78

79

※The maximum value shall not exceed 10dB of nominal value.