1/2'' Fire-retardant feeder cable

Type                                 Type No.

Standard cable                  

Fire-retardant cable                  

Construction                                    

Inner conductor

Material

CCA

Diameter(mm)

4.80±0.05

Insulation

Material

Foamed PE

Diameter(mm)

12.3±0.15

Outer conductor

Material

Annular corrugated copper tube

Diameter(mm)

13.8±0.15

Jacket

Material

LLDPE

Min.thickness(mm)

>0.9

Diameter(mm)

15.7±0.2

Mechnical Characteristics                                     

Bending radius(mm)

Single bend

50

Repeated bend

125

Tensile strength(N)

1050

Cable weight(kg/km)

215

Recommended temperature(℃)

Storage

-70~+85

Installation

-40~+60

Operating

-55~+85

Electrical  Characteristics                               

Inner conductor DC resistance(Ω/km)

1.62

Outer conductor DC resistance(Ω/km)

2.08

Characteristic impedance(Ω)

50±1.5

Capacitance(p F/m)

76

Velocity(%)

88

Dielectric strength(KV)

6.0

Insulation resistance(MΩ/km)

>1×10⁴

Peak power rating(KV)

40

Peak voltage(V)

1800

Cut-off Frequency(GHZ)

10.0

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

3.10

2.44

450

4.75

1.59

800

6.46

1.17

900

6.87

1.10

1000

7.28

1.04

1500

9.09

0.84

1800

10.10

0.75

2000

10.70

0.71

2200

11.25

0.68

2500

12.10

0.62

3000

13.40

0.56

VSWR                                        

800MHz~1000MHz

1.10

1700MHz~2500MHz

1.13

2500MHz~3000MHz

1.15