XLPE Insulated Fire Resistant Shipboard Power Cable without Inner Sheath
Our 0.6/1kV XLPE Insulated Fire Resistant Shipboard Power Cables (CJ85/NC and CJ86/NC series) are engineered for critical power and control circuits where circuit integrity must be maintained during a fire—such as fire pumps, emergency lighting, alarm systems, and ventilation controls—while offering the benefits of a simplified, inner-sheath-free construction.
This series combines fire resistance (IEC 60331) with a lightweight, smaller-diameter design achieved by eliminating the inner sheath, making it ideal for installations where weight savings and space efficiency are priorities without compromising fire safety.
Overview
1. Cable Construction
CJ85/NC & CJ86/NC Series – Simplified Fire-Resistant Armored Construction
Layer | Material |
Conductor | Stranded tinned annealed copper, Class 2 |
Insulation | Mica glass tape + XLPE (fire-resistant layer) |
Armor | Tinned copper wire braid (TCWB) – applied directly over insulation |
Outer Sheath | 5 – SHF2 (thermoset) / 6 – SHF1 (thermoplastic) |
2. Unique Value Proposition: Fire Resistance + Simplified Construction
Feature | Benefit |
Mica glass tape + XLPE insulation | Maintains circuit integrity under direct flame exposure (IEC 60331) |
No inner sheath | Reduced cable diameter and weight – easier routing in confined spaces |
Lower weight per meter | Reduced structural load on vessels and lower shipping costs |
Full LSZH protection | Low smoke, zero halogen, Category A flame retardancy |
Braided armor | Directly applied over insulation for mechanical protection |
This design is ideal for emergency circuits in interior compartments, cable trays, and retrofit projects where fire resistance is mandatory but inner sheath protection is not required.
3. Comparison: Fire Resistant Cables – With vs. Without Inner Sheath
Feature | CJV/NA or CJPJ/NC Series (with inner sheath) | CJ85/NC Series (without inner sheath) |
Construction | Conductor → Mica+XLPE → Inner Sheath → Armor → Outer Sheath | Conductor → Mica+XLPE → Armor → Outer Sheath |
Weight | Heavier | Lighter |
Diameter | Larger | Smaller |
Fire Resistance | IEC 60331 | IEC 60331 (same) |
Mechanical Protection | Enhanced | Adequate for most fire-safe applications |
Application | Harsh environments, high abrasion risk | Emergency circuits, cable trays, retrofits |
4. Application Scenarios
Environment | Recommended Type | Sheath | Rationale |
Emergency circuits, fire pumps, alarms | CJ85/NC or CJ86/NC | SHF1/SHF2 | IEC 60331 fire resistance |
Cabins, control rooms, corridors | CJ86/NC | SHF1 | Economical LSZH fire-resistant solution |
Engine rooms, machinery spaces | CJ85/NC | SHF2 | High oil resistance + fire resistance |
Cable trays, general fire-safe zones | Both | - | Lightweight, easy installation |
Retrofit projects | Both | - | Smaller diameter aids in existing trays |
5. Why Choose Our Inner-Sheath-Free Fire Resistant Cables?
Fire Resistance – Compliant with IEC 60331, ensuring critical systems remain operational during a fire emergency.
Lightweight Design – Reduced weight per meter compared to double-sheath fire-resistant cables, lowering shipping costs and vessel structural load.
Smaller Diameter – Easier routing through cable trays, conduits, and tight spaces – ideal for new builds and retrofits.
Dual Protection – Mica tape + XLPE insulation provides fire resistance and superior electrical performance.
Full LSZH Safety – Maintains low smoke, zero halogen, and Category A flame retardancy for maximum fire safety.
Corrosion Resistant – Tinned copper conductor and braid armor resist marine corrosion.
International Compliance – Manufactured to IEC standards for global marine and offshore projects.
