PVC insulated power cable

La description

Standard and Scope of Application 
The products can be produced and provided according to Chinese standard GB/T*********2(equivalent to IEC ****5). 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 *0 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 *0C. 
2. During short circuit(max permanent time is not more than 5 seconds), the max temperature of cable conductor is not more than **5C. 
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 Name 

Type Name 
VV VLV Copper(aluminum)Conductor, PVC insulated and Sheathed Power Cable 
VY VLY Copper(aluminum)Conductor, PVC insulated, PE Sheathed Power Cable 
VV*2VLV*2 Copper(aluminum)Conductor, PVC insulated, Steel-tape Armoured, PVC Sheathed Power Cable 
VV*3VLV*3 Copper(aluminum)Conductor, PVC insulated, Steel-tape Armoured, PE Sheathed Power Cable 
VV*2VLV*2 Copper(aluminum)Conductor, PVC insulated, Fine Steel-wire Armoured, PVC Sheathed Power Cable 
VV*3VLV*3 Copper(aluminum)Conductor, PVC insulated, PE Sheathed Power Cable 
VV*2VLV*2 Copper(aluminum)Conductor, PVC insulated, Thick Steel-wire Armoured, PVC Sheathed Power Cable 
VV*3VLV*3 Copper(aluminum)Conductor, PVC insulated, Thick Steel-wire Armoured, PE Sheathed Power Cable 

3.2 Nominal cross section of conductive core 
(master core)1 1.5 2.5 4 6 *0 *6 *5 *5 *0 *0 *5 **0 **0 **5 **0 **0 
(3*1 neutral core)1.5 2.5 4 6 *0 *6 *5 *5 *0 *0 *5 **0 **0 
(3*2 neutral core)1.5 2.5 4 6 *0 *6 *5 *5 *0 *0 *5 **0 **0 

3.3 Nominal thickness of insulation 
Nominal Cross 
Sectrion (mm2) 
Insulated 
Thickness(mm) 
Voltage(KV) 
1 1.5 2.5 4 6 *0 *6 *5 *5 *0 *0 *5 **0 **0 **5 **0 **0 **0 **0 **0 **0 ***0 
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 *0C, DC resistance is 
Not more than (Ω/km) Nominal 
Cross 
Section 
(mm2) at *0C, DC resistance is 
Not more than (Ω/km) Nominal 
Cross 
Section 
(mm2) at *0C, DC resistance is 
Not more than (Ω/km) 
Copper Core Aluminum Core Copper Core Aluminum Core Copper Core Aluminum Core 
1.5 *2.1 *8.1 *5 0.**4 0.**8 **0 0.***4 0.**5 
2.5 7.*1 *2.1 *0 0.**7 0.**1 **0 0.***1 0.**0 
4 4.*1 7.*1 *0 0.**8 0.**3 **0 0.***0 0.***8 
6 3.*8 4.*1 *5 0.**3 0.**0 **0 0.***6 0.***5 
*0 1.*3 3.*8 **0 0.**3 0.**3 **0 0.***3 0.***9 
*6 1.*5 1.*1 **0 0.**4 0.**6 **0 0.***1 0.***9 
*5 0.**7 1.*0 **5 0.***1 0.**4 ***0 0.***6 0.***1 

3.5 Insulation Resistance 
Test item PVC insulated Cable XLPE insulated Power Cable 
0.6/1KV 3.6/6KV 
Volume resistivity (ρΩ. Cm) 
Min. At *0C 
At top rated temperature min. ***3 
***0 ***4 
***1 - 
***2 
Ki insulation resistivity constant(MΩ. Km) 
Min. At *0C 
At top rated temperature min. *6.7 
0.**7 **7 
0.*7 - 
3.*7 

3.6 insulation resistance 
UO/U(KV) Us(KV) T(min 
0.6/1 3.5 5 
3.6/6 *2.5 5