Product Overview
The CJ92/NA is a heavy-duty, fire resistant marine power cable featuring a simplified and robust construction without a separate inner sheath. Designed for maximum mechanical durability, it combines a fire-survival core of Mica Glass Tape + XLPE insulation (IEC 60331) with a high-strength galvanized steel wire braid armor and a PVC outer sheath. This compact and cost-effective design ensures critical safety circuits remain operational during a fire while providing superior protection against crushing, impact, and harsh environmental conditions in the most demanding marine and industrial applications.
Key Features & Benefits
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Certified Fire Resistance (IEC 60331): Guarantees that essential emergency circuits (e.g., fire pumps, emergency lighting, alarm systems) maintain operation for a specified duration under direct flame and mechanical shock, which is critical for life safety and emergency response.
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Maximum Mechanical Protection: A braided armor of galvanized steel wires provides supreme resistance to crushing, impact, and tensile stress, ideal for exposed or high-risk mechanical environments where cable damage is a concern.
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Compact & Cost-Efficient Design: The absence of a separate inner sheath results in a more streamlined, potentially lighter, and economical cable structure without compromising core protective functions.
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Fire-Survival Core Technology: The Mica Glass Tape layer over XLPE insulation forms a robust, heat-resistant ceramic barrier, maintaining electrical insulation integrity and preventing circuit failure during a fire.
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Durable External Sheathing: The PVC outer sheath offers good resistance to abrasion, moisture, oils, and general environmental exposure, providing reliable long-term external protection.
Cable Construction
| Item | Code | Material / Description |
|---|---|---|
| Series Code | C | Marine Power Cable |
| Conductor | / | Tinned or Plain Stranded Annealed Copper Wire (IEC 60228) |
| Insulation | J | Mica Glass Tape + XLPE Insulated |
| Inner Sheath | \ | None (No separate inner sheath) |
| Armour | 9 | Braid of Galvanized Steel Wires |
| Outer Sheath | 2 | Polyvinyl Chloride (PVC) Outer Sheath |
| Flammability Class | NA | Fire Resistant |
| Sheath Colour | / | Standard Black (Other colours on request) |
Technical Specifications
| Parameter | Specification |
|---|---|
| Rated Voltage | 0.6/1 kV |
| Maximum Operating Temperature | 90°C |
| Conductor | Plain or Tinned Annealed Copper, Stranded |
| Insulation | Mica Glass Tape + Cross-Linked Polyethylene (XLPE) |
| Armour | Braided Galvanized Steel Wires |
| Outer Sheath | Polyvinyl Chloride (PVC) |
| Fire Resistance | IEC 60331 |
| Flame Retardancy | IEC 60332-1 & IEC 60332-3-22 (Category A) |
| Core Range | 1 to 37 cores |
| Cross-Sectional Area | 0.75 mm² to 300 mm² |
Standards & Approvals
This cable is designed and manufactured to meet key international standards for fire safety and marine applications:
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IEC 60092-350, 353: Electrical installations in ships – Design.
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IEC 60228: Conductors of insulated cables.
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IEC 60092-360: Insulating and sheathing materials.
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IEC 60331: Tests for fire resistant characteristics.
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IEC 60332-1 & -3-22: Tests for flame retardancy.
Typical Applications
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Marine & Offshore: Critical emergency and power circuits in exposed, high-risk areas on ships, docks, and offshore platforms (e.g., decks, engine rooms, bulkheads) where extreme mechanical protection and certified fire resistance are simultaneously required.
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Heavy Industrial & Mining: Power supply for essential safety systems, heavy machinery, and process controls in mining, tunneling, metallurgy, and large industrial plants where cables face severe mechanical abuse and must maintain circuit integrity during a fire event.