Specifications

lead-in cable 4 pairs telephone drop wire
1. 0.63mm Plain annealed Copper
2. Cellular Polyethylene or hign density polyethylen

lead-in cable 4 pairs telephone drop wire

APPLICATION

1. Lead in cable for the transmission of digital or analogue signals.

2. Suitable for duct or direct burial installation

 

COLOUR CODEof this cable

Pair
No.                     Wire 1               Wire 2

1                         White                 Blue

2                         white                 orange

3.                         white                green

4.                        white                brown

 

 

STANDARD of this cable

TB CW 1378    
TB CW 1406B

 

CONDUCTOR                     Plain annealed Copper    

INSULATION                        Cellular Polyethylene

FILLING COMPOUND        Petroleum Jelly

SHEATH                               Linear Low Density Polyethylene

 

 

conductor	approx mass	standard packing
number of pairs                                       number&diameter of wires	kg/km	500       1000
4                                                                      1/0.63	50	yes          yes

 

insulation thickness mm	nominal overall diameter mm	minimun installed bending radius	maximum pulling tension a (kn)
0.25mm	5.7	70	0.17

 

a. Based on a copper wire strengh of 70N/mm2.

 

 

ELECTRICAL CHARACTERISTICS
Property	Value	Units
Conductor Diameter	0.63mm	mm
DC Conductor Resistance @ 20°C	58	ohm/km
Insulation Resistance @ 20°C	6500	M ohm/km
Maximum recommended voltage	110	VDC
Capacitance between wires of a pair	56	nF/km
Capacitance Unbalance maximum at 1 kHz	120	nF/km

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