Product Overview
SiHF/GL-P Heat-Resistant Halogen-Free Steel Braided Silicone Multicore Cable is engineered for extreme thermal and mechanical stress environments. Featuring dual-layer silicone insulation, galvanized steel wire braiding, and glass fiber reinforcement, this cable operates continuously at 180°C (250°C short-circuit) while resisting oils, chemicals, and radiation. Compliant with DIN/VDE and IEC standards, it ensures signal integrity in power stations, steel mills, and mobile industrial equipment.
Key Features
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Voltage Rating: 0.6/1KV AC (300/500V per DIN VDE 0285)
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Temperature Range:
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Continuous: -60°C to +180°C (conductor)
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Short-term: +220°C (operation), +250°C (5s short-circuit)
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Halogen-Free: Zero toxic emissions during combustion
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Shielding: Galvanized steel wire braid + glass fiber tape
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Mechanical Protection: Crush/cut resistance (20 Mrad radiation proof)
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Flame Safety: IEC 60332-1-2 compliant (no flame propagation)
Cable Structure & Materials
Layer | Material/Construction | Function & Properties |
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Conductor | Tinned copper (DIN VDE 0295 Cl.5) | Fine-stranded, oxygen-resistant, IEC 60228 Class 5 |
Insulation | Silicone rubber | Thermal stability (-60°C~+180°C), ozone resistant |
Core Identification | Colored (≤5 cores) / Numbered (≥6) | DIN VDE 0293-308 compliant, includes green-yellow ground |
Core Layering | Optimized stranding | Reduced crosstalk, uniform flexibility |
Inner Sheath | Silicone rubber | Halogen-free, acid/alkali resistant |
Reinforcement | Glass fiber tape | Thermal barrier, mechanical protection |
Outer Braiding | Galvanized steel wire | EMI shielding, tensile strength (150+ N/mm²) |
Technical Parameters
Parameter | Value | Standard |
---|---|---|
Electrical | ||
Test Voltage | 2,000V AC | DIN VDE 0482 |
Breakdown Voltage | ≥5,000V | IEC 60243 |
Insulation Resistance | ≥200 MΩ·km | IEC 60167 |
Capacitance | ≤120 nF/km | IEC 60502-1 |
Mechanical | ||
Bending Radius | Fixed: 5× OD Flexing: 10× OD |
ISO 6722 |
Conductor Sizes | 0.75mm² - 10mm² (20-10 AWG) | DIN VDE 0295 |
Radiation Resistance | 20 Mrad (200 kGy) | IEC 60544 |
Thermal | ||
Power Derating | 155°C: 91% load 175°C: 41% load |
DIN VDE 0100 |
Material Advantages
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Silicone Rubber Insulation/Sheath:
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Maintains elasticity from -60°C to +180°C
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Forms protective SiO₂ layer at 350°C+
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Resists oils, alcohols, diluted acids, ozone, and UV
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Steel Wire Braid:
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360° EMI shielding (>65dB attenuation)
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Cut/crush protection for heavy industrial use
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Glass Fiber Tape: Prevents sheath melting at extreme temperatures
Application Scenarios
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Extreme Heat Industries:
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Steel mills, foundries, glass factories, cement kilns (up to 250°C)
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Energy & Infrastructure:
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Power station control systems, turbine wiring, reactor instrumentation
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Mobile Machinery:
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Furnace trolleys, hot-rolling mill conveyors, crane electrification
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Transportation:
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Ship engine rooms, aircraft galleys, locomotive wiring
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Hazardous Areas:
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Chemical plants (acid/alkali resistance), nuclear facilities (radiation proof)
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Compliance & Standards
Standard | Certification | Scope |
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Electrical | DIN VDE 0250-1, DIN EN 50525-2-83 | 300/500V multicore cable construction |
Fire Safety | IEC 60332-1-2 (no flame propagation) | Vertical flame spread |
Halogen-Free | IEC 60754-2 (DIN VDE 0482-267) | Low corrosivity of combustion gases |
Environmental | RoHS 3, REACH SVHC-free | Hazardous substance compliance |
International | CE (2006/95/EC Low-Voltage Directive) | EU market access |
Installation Guidelines
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Fixed Installations Only: Open/ventilated ducts or pipes
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Critical Note: Avoid enclosed spaces >90°C (reduced mechanical properties)
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Bending Radius:
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Fixed: ≥5× cable outer diameter
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Dynamic: ≥10× cable outer diameter
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Ordering Information
Base Model: SiHF/GL-P
Options:
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Conductor: Tinned copper (standard), bare copper (optional)
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Core Configuration: 2-37 cores (0.75-10mm²)
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Identification:
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G: With green-yellow ground conductor
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X: Without ground conductor
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Special Variants: UV-resistant, oil-immersion grade
Example Part Numbers:
23062: 2×0.75mm², OD 7.9mm, 90kg/km
23091: 7×4mm², OD 17.4mm, 240kg/km
Engineering Tip: For vertical runs >30m, use cable trays with 5×OD support intervals to prevent tensile stress.