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Phone：086-18632093999 E-mail： tlwyxl@126.com
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PRODUCTS
First, XLPE insulated power cable:
It not only has excellent electrical properties, mechanical properties, heat aging resistance, environmental stress resistance and chemical corrosion resistance, but also has a simple structure, is easy to use, is not limited by the application drop, has a long-term working temperature (90o), and has a large transmission capacity. Etc.
Second, the cable model and main uses:
|
Type |
Description |
The main purpose |
|
|
Copper core |
Aluminum core |
||
|
(ZR)YJV or(ZR)YJY |
(ZR)YJLV or(ZR)YJLY |
(flame retardant) copper and aluminum core XLPE insulated PVC sheathed power cable |
Suitable for indoor, tunnel, pipeline and cable trenches, or laid in loose soil, not subject to mechanical tension and pressure |
|
(ZR)YJV22 or (ZR)YJY23 |
(ZR)YJLV22 or (ZR)YJLY23 |
(flame retardant) copper and aluminum core XLPE insulated steel tape armored PVC sheathed power cable |
It is suitable for indoor, tunnel, pipeline, cable trench and underground burial. The cable can withstand the mechanical pressure, but can not withstand large pulling force. |
|
(ZR)YJV32 or (ZR)YJY33 |
(ZR)YJLV32 or (ZR)YJLY33 |
(Flame retardant) copper, aluminum core XLPE insulated fine steel wire armored PVC sheathed power cable |
Suitable for laying in shafts, underwater and under falling or vertical conditions, the cable can withstand mechanical pressure and considerable tensile force. |
|
(ZR)YJV42 or (ZR)YJY43 |
(ZR)YJLV42 or (ZR)YJLY43 |
(Flame retardant) copper, aluminum core XLPE insulated thick steel wire armored PVC sheathed power cable |
Suitable for use in water, seabed, and with drop or vertical laying, can withstand large mechanical pressure and tension. |
Third, the cable voltage level, core number, section range table:
|
Rated voltage kV Section mm2 Number of cores |
the first sort |
0.6/1 |
1.8/3 |
3.6/6 |
6/10 |
8.7/15 |
12/20 |
18/30 |
21/35 |
|
Second class |
-- |
3/3 |
6/6 |
8.7/10 |
12/15 |
18/20 |
-- |
26/35 |
|
|
Single core |
1.5～1000 |
10～1000 |
25～1000 |
25～1600 |
25～1600 |
50～2000 |
50～2000 |
50～2000 |
|
|
3core |
1.5～400 |
10～400 |
25～400 |
25～400 |
25～400 |
50～400 |
50～400 |
50～400 |
|
|
2core、4core、5core 3+1core、3+2core、4+1core |
1.5～400 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
|
Fourth, AC voltage test:
The power cable shall be subjected to the corresponding power frequency test voltage for 5 minutes without breakdown; wherein the U0 is 6-8.7kV cable test voltage is increased from 2.5U0 to 3.5U0 according to IEC60502; the rated voltage is 26/35 (26/35) kV cable according to IEC60840 Withstands the power frequency of 65kV/30min without breakdown.
|
Rated voltage U0(kV) |
0.6 |
6 |
8.7 |
26 |
|
Test voltage (kV) |
3.5 |
21 |
30.5 |
65 |
Fifth. Partial discharge test:
The partial discharge test voltage of rated voltage 6/6 (6/10), 8.7/10 (8.7/15), 26/35 (26/45) kV AC insulated power cable is increased from 1.5U0 according to international standards IEC60502 and IEC60840 The partial discharge to 1.73U0, 8.7/10 (8.7/15) kV and below does not exceed 10 pC, and the partial discharge of 26/35 kV does not exceed 5 pC.