1/2''s Fire-retardant feeder cable

Type                                 Type No.

Standard cable            

Fire-retardant cable                 

Construction                               

Inner conductor

Material

CCA

Diameter(mm)

3.60±0.05

Insulation

Material

Foamed PE

Diameter(mm)

9.2±0.15

Outer conductor

Material

Helical corrugated copper tube

Diameter(mm)

12.1±0.15

Jacket

Material

LLDPE or fire-retardant PE

Min.thickness(mm)

>0.7

Diameter(mm)

13.4±0.2

Mechnical Characteristics                                   

Bending radius(mm)

Single bend

17

Repeated bend

55

Tensile strength(N)

750

Cable weight(kg/km)

185

Recommended temperature(℃)

Storage

-70~+85

Installation

-40~+60

Operating

-55~+85

Electrical  Characteristics                                 

Inner conductor DC resistance(Ω/km)

2.97

Outer conductor DC resistance(Ω/km)

3.54

Characteristic impedance(Ω)

50±1.5

Capacitance(p F/m)

82

Velocity(%)

83

Dielectric strength(KV)

3.0

Insulation resistance(MΩ/km)

>1×10⁴

Peak power rating(KV)

16

Peak voltage(V)

1400

Cut-off frequency(GHz)

13

Attenuation and Average power(Maximum attenuation value shall be 105% of the nominal attenuation value)                             

Frequency

(MHz)

Attenuation

(@20℃,d B/100m)

Average  power(kv)

200

4.91

2.14

450

7.59

1.38

800

10.40

1.01

900

11.20

0.95

1000

11.80

0.89

1500

14.90

0.70

1800

16.60

0.63

2000

17.60

0.59

2200

18.27

0.56

2500

19.20

0.52

3000

22.40

0.46

VSWR                                       

800MHz~1000MHz

1.10

1700MHz~2500MHz

1.13

2500MHz~3000MHz

1.15