Usage:
This product is primarily used in power transmission and distribution systems up to 35kV, for the purpose of transmitting electrical energy. It is widely applied in sectors such as power, construction, mining, metallurgy, petrochemicals, and transportation, having completely replaced oil-impregnated paper-insulated power cables and partially substituted for poly-insulated power cables.
| Model Description |
| 1. Flame Retardant Properties 2. Insulation Series Code 3. Conductor 4. Sheath 5. Armor Layer Code |
| 6. Outer Sheath Code 7. Rated Voltage 8. Number of Conductors 9. Conductor Cross-sectional Area mm2 |
Model Code Table
| Project | Code | Meaning |
| Flame Retardant Properties | ZR | Non-flame-retardant |
| WL | Flame Retardant | |
| Low-smoke halogen-free | ||
| Insulation | YJ | Cross-linked polyethylene insulation |
| Cross-linked polyethylene insulation | － | Copper-core conductor |
| L | Aluminum-core conductor | |
| Sleeve or inner sleeve | V | |
| VD | Low-smoke, low-halogen flame retardant | |
| Y | Polyethylene | |
| E | Flame-retardant polyolefins | |
| G | Silicone rubber | |
| Armored sheath | 2 | Double-layer steel strip armor |
| 3 | Fine wire armored | |
| 4 | Coarse steel wire armoring | |
| Outer sheath | 2 | |
| 3 | Polyethylene | |
| * Note: Flame-retardant properties are classified into three levels: A, B, and C, represented as: ZRA, ZRB, ZRC. | ||
Model Name Correspondence Table
| Model | Product Name | |
| WL-ZR-YJGE | Copper-core cross-linked polyethylene insulated, polyolefin jacketed, low-smoke, halogen-free, high-flame-retardant power cables | |
| WL-ZR-YJGE23 | Copper-core cross-linked polyethylene insulated polyolefin sheathed steel tape armored low-smoke halogen-free high flame-retardant power cable | |
| WL-ZR-YJGE32 | Copper-core cross-linked polyethylene insulated polyolefin jacketed fine钢丝armored low-smoke halogen-free high-flame-retardant power cable | |
| ZR-YJV | Copper-core Cross-linked Polyethylene Insulated Sheathed Power Cable | |
| ZR-YJV22 | Copper-core Cross-linked Polyethylene Insulated Power Cable with Steel Tape Armor | |
| ZR-YJV32 | Copper-core cross-linked polyethylene insulated and sheathed fine钢丝 armored power cable | |
| ZR-YJG | Copper-core Cross-linked Polyethylene Insulated Silicone Sheathed Flame-retardant Power Cables | |
| ZR-YJG22 | Copper-core Cross-linked Polyethylene Insulated Silicone Sheath Steel Tape Armored Flame-retardant Power Cable | |
| ZR-YJG32 | Copper-core cross-linked polyethylene insulated silicone rubber sheathed fine钢丝armored flame-retardant power cable | |
| DL-ZR-YJV | Copper-core Cross-linked Polyethylene Insulated and Sheathed Low-smoke, Low-halogen Flame-retardant Power Cable | |
| DL-ZR-YJV22 | Copper-core cross-linked polyethylene insulated, steel tape armored, low-smoke, low-halogen, flame-retardant power cables | |
| DL-ZR-YJV32 | Copper-core Cross-linked Polyethylene Insulated, Low Smoke and Halogen-free Flame-retardant Power Cable with Fine钢丝 Armoring | |
| WL-ZR-YJE | Copper-core cross-linked polyethylene insulated polyolefin sheathed low-smoke halogen-free flame-retardant power cables | |
| WL-ZR-YJE23 | Copper-core cross-linked polyethylene insulated polyolefin sheathed steel tape armored low-smoke halogen-free flame-retardant power cable | |
| WL-ZR-YJE32 | Copper-core cross-linked polyethylene insulated polyolefin sheathed fine steel wire armored low-smoke halogen-free flame-retardant power cable | |
Utilize Features
| Item | Technical Performance | |
| Rated Voltage | Voltage grades include: 0.6/1kV, 1.8/3kV, 3.6/6kV | |
| 6/6kV、6/10kV、8.7/10kV、8.7/15kV | ||
| 12/20kV、21/35kV、26/35kV | ||
| Conductor long-term allowable operating temperature | Conductor with high working temperature of 90℃ | |
| Direct Current Resistance | Complies with GB3956 specifications | |
| Lay out | Installation temperature should not be below 0°C, and the minimum bend radius should be no less than 15 times the cable's outer diameter. | |
| Power frequency withstand voltage test | Uo 3.6kV and below cables: 2.5Uo + 2kV/5min non-breakdown | |
| Uo for cables above 3.6kV: Not punctured at 2.5Uo/5min | ||
| Partial Discharge Test | Uo is 1.8kV and above, or below 18kV. | |
| Discharge quantity below 1.5Uo is not greater than 20pC. | ||
| Uo is above 18kV. | ||
| Discharge amount less than 1.5Uo, not exceeding 10pC. | ||
| Flame-retardant properties | The cable can withstand the束状燃烧试验specified in GB12666.5 (IEC332-3); during combustion, the smoke concentration of low-smoke low-halogen and low-smoke halogen-free flame-retardant cables should comply with the requirements of GB12666.7 (IEC1034). | |
