Electric Power Cables

Standards

    The cable is manufactured according to GB /12706-2008 or IEC 502-2004.
    It is suitable to be installed in the four wire systems with rated voltage of 0.6/1kv (Uo/U) for transmitting electricity.

Service  characteristics
    The ling-time working temperature of cable should not be higher than 70℃.
    When core is in short-circuit(max 5S)the temperature should not exceed 160℃.
    While installation the ambient temperature should not be lower than 0℃, and the bending radius should not be less than 10 times of outer diameter of cable.

Cable armour specification

Fictitious diameter
armouring(*)
(mm)
Steel tape layer × thickness
(not less than)
(mm)
Fine steel wire diameter
(mm)
Thick steel wire diameter
(mm)
 ≤15.0  2×0.2  1.2~1.6       4.0
 15.1~25.0  2×0.2  1.6~2.0
 25.1~35.0  2×0.5  2.0~2.5
 35.1~60.0  2×0.5  2.5~3.15
 60.1~70.0      2×0.5  3.15
 >70.0  2×0.8  3.15

Note :

The assumed diameter only used for determinig the size of each sheath layer of cable. It is not the actual diameter. The Calculation methods of assuemd diameter see IEC 60502-2004

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