Superior Quality 500kv XLPE insulated High Voltage Power Cable
Standard of EHV Power Cable
IEC60840:1999, IEC62067:2001and IEC62067:2006
XLPE insulated power cable has a number of advantages over paper insulated and PVC insulated cable.XLPE power cable has high electric strength,mechanical strength,high-ageing resisting,environmetal stress resisting antichemical corrossion,and it is simple construction,using convenient and higher operating of long term temperature.It can be laid with no drop restriction.
Various of flame-retardant and non-flame retardant XLPE cable can be manufactured with three technology(peroxide, silane and irradiation crosslinking). The flame-retardant cable covers all kinds of low-smoke low-halogen low-smoke halogen free,and non-smoke nonhalogented and three classes of A,B,C.
CU Conductor PVC Insulated PVC Sheathed Power Cable
1. The applications: Rated voltage (U0/U) 0.6/1kv 8.7/15KV 26/35kV in transmission & transformation line & for water-proofing purpose .
2. Standards: 60502IEC ISO9001
3. Product features:
1) No necessary to heat up in advance while installing above 0oC.
2) Max. continuous normal operating Temperature: 90oC (PVC Sheathed cable).
3) Max. Permissible temperature at short circuit (5s. at longest): 250oC.
4) Permissible bending radius:
Single core: ≥20(d+D)±5%.
Three-core:≥15(d+D)±5%(D is the actual overall diameter of cable, and d is the actual overall diameter of conductor).
Detailed Description
Our company can produce both flame retardant and non-flame retardant series of XLPE power cable.. Our products can be produced according to our works specifications which are equivalent to GB12706, IEC60502, IEC60332, IEC60754, and its some indexes are superior to standards stated above..
The flame-retardant cable covers all kinds of low-smoke low-halogen, low-smoke halogen free and three classes of A, B, C. We can design and manufacture special XLPE cable according to the other standards require by the customers, such as heavy section cut part conductors, water-resistant, defend termites, defend mouse, and so on..
Type |
Description |
Main Application | |
Cu core | Al core | ||
(ZR)YJV or (ZR)YJY | (ZR)YJLV or (ZR)YJLY23 | (Flame retardant) Cu, Al core XLPE insulated, PVC or PE sheathed power cable. | For laying indoor, tunnel, underground and canal. Unable to bear external mechanical pulling force and pressure during laid. |
(ZR)YJV22 or (ZR)YJY23 | (ZR)YJLV22 or (ZR)YJLV23 | (Flame retardant) Cu, Al core XLPE insulated, steel armoured, PVC or PE sheathed power cable. | For laying indoor, tunnel, underground and canal. Able to bear external mechanical pulling force , but unable to bear large pulling force. |
(ZR)YJLV32 or (ZR)YJLV33 | (ZR)YJLV32 or (ZR)YJLV33 | (Flame retardant) Cu, Al core XLPE insulated, fine steel wire armoured, PVC or PE sheathed power cable | For laying in shaft, water under ground and large difference of level, able to bear mechanical pressure and moderate pulling force. |
(ZR)YJLV42 or (ZR)YJLV43 | (ZR)YJLV42 or (ZR)YJLV43 | (Flame retardant) Cu, Al core XLPE insulated, thick steel wire armoured, PVC or PE sheathed power cable | For laying in the water, seabed and large difference of level, able to bear large mechanical pressure and pulling force. |
Standard of EHV Power Cable
IEC60840:1999, IEC62067:2001and IEC62067:2006
Construction of EHV Power Cable
Copper (aluminum) conductor/ XLPE insulated/ corrugated aluminum sheath/ PVC (PE) sheathed
Rated Voltage of EHV Power Cable
U(kV) | 38 | 76 | 127 | 290 |
U0(kV) | 66 | 132 | 220 | 500 |
Cross Section of EHV Power Cable: mm2
240 | 300 | 400 | 500 | 630 | 800 | 800 | 1000 | 1200 | 1400 | 1600 |
Circular Compacted | Segmental Miliken | |||||||||
Operation Characteristics
- During the normal operation, the max permissible continuous operating temperature of conductor should not exceed 90°C
- Conductor temperature during short-circuit( 5 s maximum duration) should not exceed 250°C
- The min permissible bending radius during the cable laying is normally 25 times of the cable’s OD.
- The installation is not limited to the horizontal dropping varience.
- Pre-heated is needed when the ambient temperature is below 0°C during installation
Application of EHV Power Cable
EHV XLPE Power cable is suitable for transmission and distribution systems in the power station.
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