4 wire underground telephone electric wire cable

Brief Introduction

4 wire underground telephone electric wire cable is used to transmit and distribute power in power transmission and distribution system of 35kV or lower. It is generally applied to the fields including power, construction, mines, metallurgy, petrochemical industry and communication in complete replace of oil immersed paper insulated power cable and in partial replace of PVC insulated power cable. 

The products 4 wire underground telephone electric wire cable can be produced according to our factory specification which is equivalent to the standard IEC60502.The factory can also design and manufacture special power cable according to the other standards required by the customers.

Properties of      4 wire underground telephone electric wire cable 

1.The long-time permissible working temperature of cable conductive core is not more than 70 degrees. 

2.During short circuit (max permanent time is not more than 5 seconds), the max temperature of cable conductor is not more than 165°C.
3.The difference level of laying cable is not restricted.When laying the cable,ambient temperature is not lower than 0°C.
4.They have good chemical stability,and properties of acid resistance,alkali resistance,salt resistance,oil resistance,solvent resistance and flame resistance.

Properties of    4 wire underground telephone electric wire cable 

1.The highest allowed operating temperature of conductor for long-term working is 90 degrees.

2.In short circuit (Max long term is no more than 5 seconds). The highest temperature for conductor is no more than 250 degrees.

3.The cable is laid without horizontal drop limit. The environment temperature should be no lower than 0 when lay. Otherwise it should be preheated.

4.Excellent electrical performance, resistance to chemical corrosion.

5.Can stand advisable traction when laid.Can stand traction from Outside.Left low smoke halogen-free after burned.Retard the burning of the cable.

Nominal Cross-sectional Areas

1.5 mm2 , 2.5 mm2  ,4 mm2 , 6 mm2 , 10 mm2  , 16 mm2 ,25 mm2  , 35 mm2 , 50 mm2  ,70 mm2  ,95 mm2   ,120 mm2  , 150 mm2 ,185 mm2  ,240 mm2 ,300 mm2   400 mm2  , 500 mm2  ,   630 mm2  , 800 mm2 

Production range

Single core cable: from 1.5 mm2  to 800 mm2,

Multi-core cable: from 1.5 mm2 to 400 mm2

                                    PVC material

                                     Process