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Example Configuration Codes: CJ85/SC-VFD, CJ86/SC-VFD, CJPJ85/SC-VFD, CJPF86/SC-VFD
Operating variable frequency drive (VFD) systems in maritime environments demands electrical infrastructure capable of withstanding constant mechanical stress, harsh saltwater exposure, and severe electromagnetic interference. This specialized marine power cable is engineered specifically to address these exact challenges. When handled, the cable presents a heavy-duty, resilient exterior that flexes adequately for installation in tight shipboard conduits while maintaining structural integrity. The dense cross-linked polyethylene core and multi-layered shielding work in tandem to deliver stable power transmission, protecting sensitive onboard motors from common-mode voltages and premature bearing failure. Designed for critical offshore oil platforms and commercial vessels, this cable ensures continuous operational uptime where electrical reliability directly impacts maritime safety and project efficiency.
The internal architecture of this VFD cable is meticulously layered to maximize both electrical performance and physical durability. At its core, the stranded copper wire provides excellent conductivity, encased in a dense layer of Cross-linked Polyethylene (XLPE). This insulation material feels exceptionally firm to the touch, offering superior thermal stability and moisture resistance compared to standard PVC. To combat the intense electromagnetic noise generated by variable frequency drives, the construction incorporates a highly effective collective screen. This involves a precisely wrapped copper-plastic tape combined with a continuous drain wire, further reinforced by a tightly woven tinned copper wire braid armor. This dual-shielding approach actively contains stray currents and prevents signal disruption to adjacent marine communication systems. The outer and inner sheaths utilize thermoset or thermoplastic polyolefin, providing a tough, abrasion-resistant barrier against the physical rigors of offshore installation.
Components | Code Letter | Material or requirements | |||||
Series code | C | Marine VFD power cable | |||||
Conductor (1) | - | Stranded copper wire | |||||
Insulation (2) | J | Cross-linked polyethylene (XLPE) | |||||
Filler and tape (3) | - | Non-hygroscopic material | |||||
Collective screen (4) | - | Copper-plastic tape plus one drain wire | |||||
Inner sheath (5) | PF | Thermoplastic polyolefin (SH1) | |||||
PJ | Thermoset polyolefin (SHF2) | ||||||
Armor (6) | 8 | Tinned copper wire braided | |||||
Outer sheath (7) | 5 | Thermoset polyolefin (SHF2) | |||||
6 | Thermoplastic polyolefin (SH1) | ||||||
Flame retardant | S | Flame retardant for bunched wires or cables | |||||
Low smoke and halogen free | C | Low smoke, halogen free and low toxicity | |||||
Application code | VFD | Variable Frequency Drive (VFD) Cable | |||||
Safety in the confined, isolated environments of ships and offshore rigs leaves no room for compromise. This cable series is manufactured in strict accordance with IEC maritime standards, undergoing rigorous quality control protocols to verify its fire-behavior characteristics. In the event of a fire, the low-smoke, halogen-free, and low-toxicity properties ensure that visibility remains clear for evacuation, while preventing the release of corrosive acidic gases that could irreparably damage surrounding electronic panels. The bunched flame-retardant capability restricts fire propagation along cable trays, isolating potential hazards. Every parameter detailed below reflects the precise testing criteria met to guarantee personnel safety and equipment preservation under emergency conditions.
Construction:IEC 60092-350, 353
Conductor:IEC 60228 Class 2, Class 5
Insulation & Sheath:IEC 60092-360
Flame Retardant:IEC 60332-1-2
Flame Retardant:IEC 60332-3-22 Cat.A
Smoke Density:IEC 61034
Halogen Index:IEC 60754
Fluorine Content:IEC 60684-2
* Sheath UV Resistance:UL1581-2011
* Sheath Cold Resistance:IEC 60811-1-4
Efficient and error-free installation is a primary concern for electrical contractors working in the dimly lit, complex routing environments of marine vessels. To facilitate rapid and accurate termination, the internal cores feature a high-contrast, standardized color-coding system. The vivid distinction between the phase cores and the earth core allows technicians to instantly identify the correct connections, significantly reducing labor time and the risk of costly miswiring during the setup of variable frequency drive systems.
3 cores: Black, Brown, Grey
Earth core: Yellow/Green
Marine operations expose electrical systems to dramatic environmental shifts, from the freezing winds of arctic routes to the intense heat generated within engine rooms. This cable is specifically formulated to maintain its electrical and mechanical properties across an extreme temperature spectrum. The insulation materials resist embrittlement in sub-zero conditions down to -60℃ (upon specific request) while safely operating at continuous high temperatures up to 90℃. Furthermore, the cable undergoes severe high-voltage dielectric testing to confirm insulation integrity, ensuring it can handle the voltage spikes and harmonic distortions inherent to VFD operations without degradation.
Operating temperature:-15℃(*-60℃)~+90℃
Test voltage:3.5kV/5min(0.6/1kV), 6.5kV(1.8/3kV)/5min
Smoke density of completed cable:≥60%
The exterior of the cable features a matte, non-reflective finish designed to withstand prolonged exposure to harsh elements. This specialized outer layer provides a formidable defense against ultraviolet radiation, preventing the material degradation and cracking that often plagues standard cables exposed on open decks. The tactile toughness of the sheath also offers excellent resistance against the friction, impacts, and chemical exposures commonly encountered during marine and offshore platform maintenance.
Black
The deployment of variable frequency drives on maritime vessels and offshore oil rigs is essential for optimizing the energy consumption of pumps, fans, and propulsion systems. However, these drives generate significant electrical noise. This product is suitable for power lines and power transmission & distribution lines in various river and sea ships and offshore oil platforms which have strict requirements on shielding performance, especially for power supply or as link cables in variable frequency control transmission systems. By utilizing this specialized shielded cable, operators effectively mitigate electromagnetic interference, protecting sensitive navigation equipment and preventing premature motor bearing damage caused by induced currents.
* Standards or performance provided upon request.
Type | Description | |||||
CJ85/SC-VFD | XLPE insulated low-smoke, halogen-free and flame-retardant marine shipboard LV VFD power cable with copper wire braiding and cross-linked polyolefin outer sheath (SHF2) for marine and offshore | |||||
CJ86/SC-VFD | XLPE insulated low-smoke, halogen-free and flame-retardant marine shipboard LV VFD power cable with copper wire braiding and polyolefin outer sheath (SHF1) for marine and offshore | |||||
CJPJ85/SC-VFD | XLPE insulated low-smoke, halogen-free and flame-retardant marine shipboard LV VFD power cable with cross-linked polyolefin inner sheath (SHF2), copper wire braiding and cross-linked polyolefin outer sheath (SHF2) for marine and offshore | |||||
CJPF86/SC-VFD | XLPE insulated low-smoke, halogen-free and flame-retardant marine shipboard LV VFD power cable with polyolefin inner sheath (SHF1), copper wire braiding and polyolefin outer sheath (SHF1) for marine and offshore | |||||
Size | |||
3x2.5 | 3x2.5+1x1.5 | ||
1x4 | 3x4 | 3x4+1x2.5 | 3x4+3x1 |
1x6 | 3x6 | 3x6+1x4 | 3x6+3x1.5 |
1x10 | 3x10 | 3x10+1x6 | 3x10+3x2.5 |
1x16 | 3x16 | 3x16+1x10 | 3x16+3x4 |
1x25 | 3x25 | 3x25+1x16 | 3x25+3x6 |
1x35 | 3x35 | 3x35+1x16 | 3x35+3x6 |
1x50 | 3x50 | 3x50+1x25 | 3x50+3x10 |
1x70 | 3x70 | 3x70+1x35 | 3x70+3x16 |
1x95 | 3x95 | 3x95+1x50 | 3x95+3x16 |
1x120 | 3x120 | 3x120+1x70 | 3x120+3x25 |
1x150 | 3x150 | 3x150+1x70 | 3x150+3x25 |
1x185 | 3x185 | 3x185+1x95 | 3x185+3x35 |
1x240 | 3x240 | 3x240+1x120 | 3x240+3x50 |
1x300 | 3x300 | 3x300+1x150 | 3x300+3x50 |
Procuring specialized marine infrastructure requires precise alignment with project engineering specifications. To streamline the decision-making process for procurement teams and electrical engineers, full technical support is provided alongside a comprehensive range of cross-section sizes, spanning from compact 3x2.5 configurations up to heavy-capacity 3x300 layouts. Customization services ensure that specific dimensional tolerances, shielding densities, and extreme temperature ratings (-60℃ modifications) can be tailored to unique platform requirements. Detailed product manuals, comprehensive technical data sheets, and compliance certification documents are readily available for download, empowering project managers to verify specifications against international maritime regulations before finalizing integration plans.
