塑料绝缘的电缆

Standard and Scope of Application The products can be produced and provided according to Chinese standard GB/T12706-2002(equivalent to IEC 60505). The factory can also manufacture the products that are based on British Standard(BS) and other standards. In addition, under the requirement of customers we can design and manufacture the products that have special performance. The products are used in fixed laying on transmission and distribution electrical lines of 50 Hz AC rated voltage up to 6 kV. Specific Property for Using 1. The long-time permissible working temperature of cable conductive core is not more than 70C. 2. During short circuit(max permanent time is not more than 5 seconds), the max temperature of cable conductor is not more than 165C. 3. The difference level of laying cable is not restricted. When laying the cable, ambient temperature is not lower than 0C. 4. They have good chemical stability, and properties of acid resistance, alkali resistance, salt resistance, oil resistance, solvent resistance and flame resistance. 5. Light weight, good bending property and easy installation and maintenance. Technical Requirement 3.1 Type and NameType Name VV VLV Copper(aluminum)Conductor, PVC insulated and Sheathed Power Cable VY VLY Copper(aluminum)Conductor, PVC insulated, PE Sheathed Power Cable VV22VLV22 Copper(aluminum)Conductor, PVC insulated, Steel-tape Armoured, PVC Sheathed Power Cable VV23VLV23 Copper(aluminum)Conductor, PVC insulated, Steel-tape Armoured, PE Sheathed Power Cable VV32VLV32 Copper(aluminum)Conductor, PVC insulated, Fine Steel-wire Armoured, PVC Sheathed Power Cable VV33VLV33 Copper(aluminum)Conductor, PVC insulated, PE Sheathed Power Cable VV42VLV42 Copper(aluminum)Conductor, PVC insulated, Thick Steel-wire Armoured, PVC Sheathed Power Cable VV43VLV43 Copper(aluminum)Conductor, PVC insulated, Thick Steel-wire Armoured, PE Sheathed Power Cable3.2 Nominal cross section of conductive core (master core)1 1.5 2.5 4 6 10 16 25 35 50 70 95 120 150 185 240 300 (3+1 neutral core)1.5 2.5 4 6 10 16 25 35 50 70 95 120 150 (3+2 neutral core)1.5 2.5 4 6 10 16 25 35 50 70 95 120 1503.3 Nominal thickness of insulation Nominal Cross Sectrion (mm2) Insulated Thickness(mm) Voltage(KV) 1 1.5 2.5 4 6 10 16 25 35 50 70 95 120 150 185 240 300 400 500 630 800 1000 0.6/1 0.8 0.8 0.8 1 1 1 1 1.2 1.2 1.4 1.4 1.6 1.6 1.8 2.0 2.2 2.4 2.6 2.8 2.8 2.8 3.0 3.6/6 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4DC resistance of conductor Nominal Cross Section (mm2) at 20C, DC resistance is Not more than (Ω/km) Nominal Cross Section (mm2) at 20C, DC resistance is Not more than (Ω/km) Nominal Cross Section (mm2) at 20C, DC resistance is Not more than (Ω/km) Copper Core Aluminum Core Copper Core Aluminum Core Copper Core Aluminum Core 1.5 12.1 18.1 35 0.524 0.868 240 0.0754 0.125 2.5 7.41 12.1 50 0.387 0.641 300 0.0601 0.100 4 4.61 7.41 70 0.268 0.443 400 0.0470 0.0778 6 3.08 4.61 95 0.193 0.320 500 0.0366 0.0605 10 1.83 3.08 120 0.153 0.253 630 0.0283 0.0469 16 1.15 1.91 150 0.124 0.206 800 0.0221 0.0369 25 0.727 1.20 185 0.0991 0.164 1000 0.0176 0.02913.5 Insulation Resistance Test item PVC insulated Cable XLPE insulated Power Cable 0.6/1KV 3.6/6KV Volume resistivity (ρΩ. Cm) Min. At 20C At top rated temperature min. 1013 1010 1014 1011 - 1012 Ki insulation resistivity constant(MΩ. Km) Min. At 20C At top rated temperature min. 36.7 0.037 367 0.37 - 3.673.6 insulation resistance UO/U(KV) Us(KV) T(min 0.6/1 3.5 5 3.6/6 12.5 5