1. Product Overview
Silicone Rubber Electrical Cables are flexible power transmission cables designed for equipment rated at 0.6/1kV or below. Engineered for extreme environments, these cables operate reliably in high-temperature, chemically aggressive, or mechanically stressful conditions where standard cables fail.
2. Key Material Properties & Applications
Material Characteristics
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Temperature Resilience: -60°C to +180°C continuous; 250°C short-term (≤5 sec)
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Chemical Resistance: Ozone, UV radiation, moisture, and aging
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Mechanical Durability: Flame-retardant (IEC 60332), cold-flexible, weatherproof
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Electrical Stability: Maintains insulation integrity under thermal cycling
Application Scenarios
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Industrial ovens/furnaces
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Welding equipment
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Foundries & steel plants
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Renewable energy systems (solar/wind)
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Mobile generators & shipboard power
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Chemical processing facilities
3. Technical Specifications
Electrical Parameters
| Parameter | Value | Standard |
|---|---|---|
| Rated Voltage (U<sub>0</sub>/U) | 0.6/1 kV | IEC 60502-1 |
| Conductor DC Resistance (20°C) | ≤0.0184 Ω/m (1mm²) | GB/T 3956 |
| Insulation Resistance (20°C) | ≥50 MΩ·km (≤50mm²) ≥35 MΩ·km (70-185mm²) |
IEC 60811 |
| Voltage Test | 3.5kV AC, 5 min no breakdown | IEC 60502-1 |
Mechanical & Thermal
| Parameter | Specification |
|---|---|
| Operating Temperature | -60°C to +180°C |
| Max. Conductor Temp (Short Circuit) | 250°C (≤5 sec) |
| Minimum Installation Temp | -20°C |
| Bending Radius | 15×OD (single-core) 12×OD (multi-core) |
4. Cable Construction
Standard Configuration
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Conductor: Tinned copper (Class 5/VDE 0295)
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Insulation: HTV Silicone Rubber
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Screen (Optional): Copper braid (coverage ≥85%)
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Sheath: Silicone rubber (HGG) or PVC (HGVF)
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Armour (Optional): Steel tape (22) or steel wire (32)
5. Product Models & Nomenclature
Type Coding System
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H: Silicone rubber power cable series
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G: Silicone rubber insulation/sheath
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VF: PVC sheath compound
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P: Copper braid screen
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22: Steel tape armour
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32: Steel wire armour
Standard Models (IEC 60502-1 Compliant)
| Core Config. | Model | Description |
|---|---|---|
| Single-core | H07GG-J | Silicone insulated, silicone sheathed |
| Multi-core | H07GVF-J | Silicone insulated, PVC sheathed |
| Shielded | H07GVF3P-J | PVC sheath + copper screen |
| Armoured | H07GG22-J | Silicone sheath + steel tape armour |
| Full spec | H07GVFP32-J | PVC sheath + screen + steel wire armour |
Example Sizing:
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H07GG-J 1×2.5mm²
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H07GVF-J 3×4mm² + 1×2.5mm²
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H07GVFP32-J 4×185mm²
6. Compliance & Certification
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Standards: IEC 60502-1, GB/T 5013.8, VDE 0282
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Certifications: CE, RoHS, REACH
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Flame Rating: IEC 60332-1 (Standard) / -2 (Cat A) on request
7. Ordering & Customization
Standard Delivery
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Length Tolerance: ±0.5% (min. 100m drum)
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Packaging: Wooden drums, moisture-resistant wrapping
Custom Options
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Special voltages (up to 3.6/6kV)
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Custom colors/marking
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Enhanced fire performance (IEC 60331)
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UL/CSA certification
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Flat/Ribbon configurations
8. Installation Notes
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Use cable glands rated for silicone/PVC
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Avoid sharp edges during pulling
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Maintain minimum bend radius
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Store drums horizontally (<1yr recommended)