First, product standards
According to GB12706 "rated voltage 35kV and below the copper core, aluminum core plastic insulated power cable standard" and GB12666 "cable burning test method" production, but also can be based on user needs according to the International Electrotechnical Commission recommended by the IEC standard, the British standard BS, German standard DIN, American Standard ICEA and Japan's JIS standard.
Two, use
This product is suitable for 35KV and the following power transmission and distribution system, power supply and distribution can be used. Widely used in electric power, construction, mining, metallurgy, petroleum, chemical, transportation and other sectors, has completely replaced the oil impregnated paper insulated power cables and replace PVC insulated power cable.
Three, the use of characteristics and the main technical performance
1 rated voltage U0/U is divided into 0.6/1KV, 1.8/3KV, 3.6/6KV, 6/6KV, 6/10KV, 8.7/15KV, 12/20KV, 21/35KV, 26/35KV.
The maximum operating temperature of the 2 conductor allowed for a long time is 90 degrees, short circuit (the longest duration is not more than 5 seconds), the maximum temperature of the cable conductor is not more than 250 degrees
3 conductor DC resistance in accordance with the provisions of GB/T3956.
4 when laying the ambient temperature is not less than 0 degrees, 0 degrees lower than the first heating, the minimum bending radius is not less than 15 times the diameter of the cable.
5 cable laying is not limited by drop.
6 power frequency voltage test: U0 for the 3.6KV and the following cable: 2.5 U0+2KV/5min does not breakdown, U0 for the 3.6K and on the cable: 2.5 U0/5min does not breakdown.
7 partial discharge experiment: U0 for more than 1.8KV and 18KV and below 1.5 U0 power down is not more than 20PC; U0 for more than 18KV, 1.5 U0 lower power consumption is not more than 10PC.
8 flame retardant characteristics: flame retardant cable can withstand the GB18380 requirements of the beam burning test. Low smoke and low halogen flame retardant cable can withstand the provisions of the GB18380 bundle burning test, and the combustion smoke concentration should be consistent with the provisions of GB18380, the content of HCL in the gas burning precipitation should be less than 100mg / g, and meet the requirements of IEC754-1. Low smoke halogen-free flame retardant cable can withstand GB18380 specified smoke concentration and combustion, combustion test beam should be consistent with the provisions of GB18380, the combustion gas water solution pH = 4.3, conductivity less than or equal to 10 mu s/mm and meet the requirements of IEC754-2.
Four, the cable model, name and applicable occasions
Model | Name | Suitable occasion | |
copper | aluminum | ||
YJV | YJLV | Cross linked polyethylene insulated and PVC sheathed power cable | For laying indoors, in tunnel, cable trench and pipeline, it can also be buried in loose soil, the cable can not bear the mechanical external force. Single core cable is not allowed to be laid in magnetic pipeline. |
YJY | YJLV | Cross linked polyethylene insulated and PE sheathed power cable | |
YJV22 | YJLV22 | XLPE insulated PVC sheathed power cable | Buried in the low, cable can withstand external mechanical forces, but unable to bear large tension. |
YJV23 | YJLV23 | XLPE insulated PVC sheathed power cable |
Note: can according to user needs, the production of steel wire armored type structure, such as: YJV32, YJLV32 etc..
Flame retardant cable, when ordering in the prototype before adding "ZR-".
Five, the rated voltage of the cable, the nominal section and the number of cores
Model | Core number | Rated voltage(kV) | ||||||||
copper | aluminum | 0.6/1 | 3.6/6 | 6/6 6/10 | 8.7/10 8.7/15 | 12/20 | 18/20 18/30 | 21/35 | 26/35 | |
YJV YJY | YJLV YJLY | 1 | 1.5~400 | 25~500 | 25~500 | 25~500 | 35~500 | 50~500 | 50~500 | 50~500 |
3 | 1.5~300 | 25~300 | 25~300 | 25~300 | 35~300 | 50~300 | 50~300 | 50~300 | ||
2 | 1.5~150 | - | - | - | - | - | - | - | ||
3+1 | 4~400 | - | - | - | - | - | - | - | ||
3+2、4+1 | 50~240 | - | - | - | - | - | - | - | ||
5 | 1.5~35 | - | - | - | - | - | - | - | ||
YJV22 YJV23 | YJLV22 YJLV23 | 1 | 4~400 | 25~500 | 25~500 | 25~500 | 35~500 | 50~500 | 50~500 | 50~500 |
3 | 2.5~300 | 25~300 | 25~300 | 25~300 | 35~300 | 50~300 | 50~300 | 50~300 | ||
2 | 4~150 | - | - | - | - | - | - | - | ||
3+1 | 4~300 | - | - | - | - | - | - | - | ||
3+2、4+1 | 50~240 | - | - | - | - | - | - | - | ||
5 | 2.5~35 | - | - | - | - | - | - | - |