1. Title (specification): VV 1 * 1.5 VV 1 * 2.5 VV 1*4 VV 1*6 VV 1*10 VV 1*16 VV 1*25 VV 1*35 VV 1*50 VV 1*70 VV 1*95 VV 1*120 VV 1*150 VV 1*185 VV 1*240 VV 1*300 VV 1*400 VV 1*500 VV 1*630
VV 2*1.5 VV 2*2.5 VV 2*4 VV 2*6 VV 2*10 VV 2*16 VV 2*25 VV 2*35 VV 2*50 VV 2*70 VV 2*95 VV 2*120 VV 2*150 VV 2*185 VV 2*240 VV 2*300 VV 2*400
VV 3*1.5 VV 3*2.5 VV 3*4 VV 3*6 VV 3*10 VV 3*16 VV 3*25 VV 3*35 VV 3*50 VV 3*70 VV 3*95 VV 3*120 VV 3*150 VV 3*185 VV 3*240 VV 3*300 VV 3*400
VV 4*1.5 VV 4*2.5 VV 4*4 VV 4*6 VV 2*10 VV 4*16 VV 4*25 VV 4*35 VV 4*50 VV 4*70 VV 4*95 VV 4*120 VV 4*150 VV 4*185 VV 4*240 VV 4*300 VV 4*400
VV 5*1.5 VV 5*2.5 VV 5*4 VV 5*6 VV 5*10 VV 5*16 VV 5*25 VV 5*35 VV 5*50 VV 5*70 VV 5*95 VV 5*120 VV 5*150 VV 5*185
VV 3*2.5 1*1.5 VV 3*4 1*2.5 VV 3*6 1*4 VV 3*10 1*6 VV 3*16 1*10 VV 3*25 1*16 VV 3*35 1*16 VV 3*50 1*25 VV 3*70 1*35 VV 3*95 1*50 VV 3*120 1*70 VV 3*150 1*70 VV 3*185 1*95 VV 3*240 1*120 VV 3*300 1*150 VV 3*400 1*185
VV 3*2.5 2*1.5 VV 3*4 2*2.5 VV 3*6 2*4 VV 3*10 2*6 VV 3*16 2*10 VV 3*25 2*16 VV 3*35 2*16 VV 3*50 2*25 VV 3*70 2*35 VV 3*95 2*50 VV 3*120 2*70 VV 3*150 2*70 VV 3*185 2*95 VV 3*240 2*120 VV 3*300 2*150 VV 3*400 2*185
VV 4*2.5 1*1.5 VV 4*4 1*2.5 VV 4*6 1*4 VV 4*10 1*6 VV 4*16 1*10 VV 4*25 1*16 VV 4*35 1*16 VV 4*50 1*25 VV 4*70 1*35 VV 4*95 1*50 VV 4*120 1*70 VV 4*150 1*70 VV 4*185 1*95 VV 4*240 1*120 VV 4*300 1*150 VV 4*400 1*185
VV polychlorinated ethylene Insulated vinyl chloride sheath power cable It has good electrical performance and chemical stability, simple structure and convenient use. This product is applicable to power transmission and distribution lines with AC rated voltage U0/U of 0.6/1KV and below.
PVC insulation - PVC sheathed power Cable . Laid indoors, in tunnels and The Conduit Medium. The cable cannot bear the action of external mechanical force. The cable is used for a long time. The higher working temperature shall not exceed 70C. The five second short circuit shall not exceed 160C. The ambient temperature during laying shall not be lower than 0C. The smaller bending radius of the cable during laying shall not be less than 10 times of the cable diameter. The single core cable shall not be alone in the magnetic pipe when it is under counter current
The main feature of flame-retardant power cable is that the cable is not easy to ignite or the ignition delay is limited to a certain range. It is suitable for power stations, subways, tunnels, high-rise buildings, large industrial and mining enterprises, oil fields, coal mines and other places with high cable laying density.
The main feature of fire-resistant power cable is that in addition to transmitting power under normal working conditions, the cable can still maintain normal operation for a certain period of time when it is on fire. It is suitable for nuclear power plants, subways, tunnels, high-rise buildings and other places related to fire safety and fire rescue
This product is prepared for production according to GB12706.2 or IEC502 standards, and can also be produced according to other standards required by users.
In addition to the above standards, flame-retardant cables are divided into three different flame-retardant categories A, B and C according to GB12666.5 or IEC332-3. The flame-retardant category A has better flame-retardant performance, which can be selected by users according to their needs.
The fire resistance performance of fire-resistant cable is divided into two different fire resistance categories (950 ° C-1000 ° C90mim, 750 ° C-800 ° C/90mim) according to the foresight of GB12666.6 standard. Users can choose according to the use occasion and requirements
Product model
1. Ordinary cable model
VV copper core PVC insulated PVC sheathed power cable
VV22 copper core polychloroene insulated steel tape armored polychloroene sheathed power cable
2. Flame retardant cable model
Add ZR in front of ordinary power cable model
3. Fire resistant cable model
Add NH before the ordinary cable model
Product use characteristics
(1) The additional voltage U0/- U is 0.6/1KV.
(2) The higher rated temperature of cable conductor is 70 ° C
(3) High temperature of electric energy of cable conductor shall not exceed 160 ° C during short circuit (longer duration shall not exceed 5S)
(4) The ambient temperature during cable laying shall not be lower than 0, and the smaller bending bucket diameter is as follows:
Single core cable - 20 (D d), mm
Multicore cable-15 (D d), mm
(D and d are not the cable outer diameter and the nominal diameter of the main body respectively, mm)
Cable load Flowmeter Calculation condition
Ambient temperature 25 ° C
Operating temperature of cable conductor 70 ° C
When the cable is buried, the soil thermal resistance coefficient g=1.0 ° C.m/W, but the phenomenon that the soil thermal resistance coefficient increases due to moisture migration during long-term operation of the cable has not been considered.
When the cable is buried, the distance between the cable core and the ground is 1000mm.
When the cable is buried, the core distance of the cable S=3D
PVC insulated and PVC sheathed steel tape armored power cable. It is laid indoors, in tunnels and in pipes. The cable cannot bear the external mechanical force. The cable is used for a long time. The higher working temperature should not exceed 70C. The five second short circuit should not exceed 160C. When laying, the ambient temperature should not be lower than 0C, When laying, the smaller bending radius of the cable shall not be less than 10 times of the cable diameter. When the single core cable is under counter current, it shall not be separated from the magnetic pipe
