Medium Voltage 8kV MV-105 133% Level Insulation Power Cable
- According to IEC and GB Standard
- Approved by ISO,CCC, CE
- Place of Origin: Henan, China
- Number of Cores: 1 or 3
- HS Code: 8544492100
- MOQ: 500 Meters
10~100 $ / Meter
5
- Product Details
8kV Medium Voltage Cable is a specialized cable designed to transmit power at a voltage level of 8,000 volts. It is suitable for a wide range of commercial, industrial and utility applications, such as connecting transformers, substations or large electrical equipment. 5KV / 8KV medium voltage power cables features semiconductor shielding and metal jacketing for added safety. When installed in accordance with the NEC, 8kV medium voltage cables are suitable for use in wet or dry locations as well as for aerial, direct burial, conduit, open tray and underground conduit installations.
- Specification
- 8kv cable size: 35/50/70/95/120/150/185/240/300/400 mm
- Temperature range: -20°C to +90°C
- Permissible operating temperature of the conductor:+90°C
- Permissible short circuit temperature at the conductor: +250°C (Short circuit duration max. 5 s)
- Related Voltage: 5/8KV
- Test Voltage: 30.5KV/5Min
- Construction
- Conductor: Plain annealed copper Class 2
- Insulation: Ethylene Propylene Rubber (EPR)
- Copper Tape or Copper Wire Screen
- Armour Type: STA(Steel Tape Armoured), SWA(Steel Wire Armoured), AWA(Aluminum Wire Armoured)
- Sheath Material: PVC or Polyethylene
- Parameter
| Number of cores and cross-section(mm2) | Shape of conductor | Conductor diameter(mm) | Nominal insulation thickness(mm) | Nominal thickness sheath(mm) | Outer diameter approx. (mm) | Weight approx. (kg/km) |
| 1×35/16 | RM | 7.2 | 3.4 | 2.5 | 24 | 904 |
| 1×50/16 | RM | 8.2 | 3.4 | 2.5 | 26 | 1039 |
| 1×70/16 | RM | 9.8 | 3.4 | 2.5 | 27 | 1271 |
| 1×95/16 | RM | 11.3 | 3.4 | 2.5 | 29 | 1530 |
| 1×120/16 | RM | 12.8 | 3.4 | 2.5 | 30 | 1809 |
| 1×150/25 | RM | 14.2 | 3.4 | 2.5 | 32 | 2158 |
| 1×185/25 | RM | 15.8 | 3.4 | 2.5 | 33 | 2524 |
| 1×240/25 | RM | 18.3 | 3.4 | 2.5 | 36 | 3117 |
| 1×300/25 | RM | 20.7 | 3.4 | 2.5 | 38 | 3786 |
| 1×400/35 | RM | 23.3 | 3.4 | 2.5 | 41 | 4750 |
FAQ
What does the "100%" and "133%" insulation level mean for 8kV cables?
100% Level: For systems with rapid fault clearing (<1 minute). 133% Level: For systems where faults may persist up to 1 hour. This requires thicker insulation. For an 8kV system, specifying a 133% insulation level increases reliability.
Can I use an unshielded cable for 8kV?
Generally, no. Above 2kV (and certainly at 8kV), shielding is critical to manage electric field stress and prevent safety hazards. Unshielded cables at this voltage are rare and only used in highly specific, controlled environments (like certain jumpers) with specialized insulators.
Is it safe to bury 8kV cables directly in the ground?
Only if the cable is rated for Direct Burial. These cables typically feature a robust outer jacket (HDPE or PVC) and often include armor (SWA or Interlocked Armor) for mechanical protection against rocks and digging.
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