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Foam PE insulated metro communication cable

Foam PE insulated metro communication cable

Foam PE insulated metro communication cable application

This cable is Copper core foam polyethylene insulated aluminum sheath halogen-free flame retardant outer sheath Metro Route communication cable.

This product is mainly intended for Metro Main Line communication with strong moisture-proof function, strong electromagnetic interference, halogen-free flame retardant characteristics. Mainly for the transmission of audio, 150Hz and below the analog signal, this condition can also be used to transmit 2048Kbit / s digital signals.

Foam PE insulated metro communication cable features

(1) the use of foam polyethylene insulation structure, reducing the dielectric constant of the insulation layer
(2) a cable components used quads structure to ensure stable transmission performance
(3) triple moisture-proof structure, with excellent moisture resistance.
(4) the use of copper conduct electric and magnetic shield, to ensure shielding coefficient is less than 0.2, with strong electromagnetic interference; decay constant ≤ 6.7dB/km (150kHz).
(5) outer sheath with non-toxic, low smoke, flame retardant characteristics, flame retardant performance to IEC332 standards, minimum transmittance ≥ 60%.

Foam PE insulated metro communication cable model and spec

Model
Spec
Name
WDZC-HEYFAPT23 25*4*0.7 Copper core foam polyethylene insulated aluminum sheath halogen-free flame retardant outer sheath Metro Route communication cable
50*4*0.7


Foam PE insulated metro communication cable electrical performance

Number
Item
Measure unit
Indicator
1
Conductive core downstream resistance 20 ℃
Ω.km
≤48
2
Working wire and Two-wire DC resistance unbalance
%
1.5
3
Insulation resistance of each wire to other cores (with shielded metal sleeve connection)80~200V(100~500V )
MΩ.km
≥5000
4
Insulation electric strength (50Hz 2min) MΩ.km
All cores together on Shield and sleeve Core to core
V
2000   1000
5
Wire pair working capacitance (0.8~10kHz) Max.
pF/km
39
6
Capacitive coupling coefficientK1 (0.8~10kHz) Average Maximum
pF/500m
≤81 ≤330
7
Capacitive coupling coefficientK9 (0.8~10kHz) Average Maximum
pF/500m
≤168 ≤472
8
Ground capacitance unbalancee1、e2 (0.8~10kHz) Average Maximum
pF/500m
≤330 ≤1294
9
Cable working frequency shielding factor (30~150V)
-
≤0.4
10
the near-end crosstalk attenuation between loop 1024kHz M-S
-
≥53dB
11
Attenuation constant20 ℃ 150 kHz AVG
dB/km
≤6.7
12
Shielded aluminum, copper continuity
-
Yes
13
Mixed core wire, broken
-
No mixed No broken

Foam PE insulation metal sheathed symmetrical communication cable show

PE-insulated-telephone-cable.jpg

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