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Conductor: Ultra-fine stranded bare copper or tinned copper (Class 5/6 highly flexible conductors)
Insulation:EPR (Ethylene Propylene Rubber), HEPR, EVA, XLPE
Filling:Textile fillers or rubber filling;
Earth Conductor / Pilot Core: Ground wire for safety;
Outer Sheath:CPE (Chlorinated Polyethylene), PCP (Polychloroprene), PUR (Polyurethane), TPU (Thermoplastic Polyurethane)
Reinforcement (Optional):Tensile fibers (e.g., Kevlar), steel wire ropes, internal braiding;
Standards:CCC/UL/CE/CNAS/IEC Certificate
*Customized products are supported
| NOMINAL VOLTAGE OF TRAILING CABLE | |
| Voltage Rating | Application Description |
| 300/500V | Control signals, crane lighting, limit switch wiring, etc. |
| 450/750V | Power and control circuits for small mobile equipment |
| 0.6/1kV | Power supply for mainstream industrial equipment, suitable for most cranes, hoists, AGVs, etc. |
| 1.9/3.3kV | Heavy-duty machinery such as electric shovels, bulldozers, cable reel power supply, etc. |
| 3.6/6kV | Large mining motor drives, suitable for harsh trailing and impact environments |
| 6.35/11kV | Long-distance, high-power industrial applications, such as large mobile equipment in open-pit mines |
| NORMAL STRUCTURE OF TRAILING CABLE | |
| Component | Description |
| 1. Conductor |
Ultra-fine stranded bare copper or tinned copper wire: Key to high flexibility. Made of many very fine copper strands, usually Class 5 (flexible conductor) or Class 6 (super flexible conductor) to withstand frequent bending, twisting, and stretching without breaking. |
| 2. Insulation |
Elastomer materials commonly used: • EPR (Ethylene Propylene Rubber): Excellent heat resistance, ozone resistance, weather resistance, and electrical insulation. • HEPR (Hard Ethylene Propylene Rubber): Enhanced mechanical strength based on EPR. • EVA (Ethylene Vinyl Acetate): Good elasticity and low temperature resistance. • XLPE (Cross-linked Polyethylene): Used in medium and high voltage cables, provides excellent electrical performance and heat resistance. |
| 3. Filling | Textile or rubber fillers: In multi-core cables, non-absorbent fillers or extrusion rubber are used between insulated cores to maintain cable roundness and provide cushioning and support. |
| 4. Shielding | Conductive layer / Shielding: For medium/high voltage cables, semiconductive layers (shields) are placed between conductor and insulation, and outside insulation, to equalize electric field, reduce partial discharge, and improve electrical performance and cable life. Some cables shield individual cores to reduce electromagnetic interference. |
| 5. Earth Conductor and/or Pilot Core |
Earth wire: Essential, usually placed alongside the main power cores for safety grounding. Pilot core/control core: Many heavy-duty or high-voltage trailing cables include one or more smaller pilot cores used for grounding continuity monitoring systems or remote control signals. If grounding continuity is lost, the pilot core triggers protection devices to cut power, greatly enhancing safety. |
| 6. Outer Sheath |
High-strength elastomer materials: Key to withstand harsh environments.Common materials: • CPE (Chlorinated Polyethylene)• PCP (Polychloroprene, commonly called Neoprene) • PUR (Polyurethane): Excellent abrasion, cut, oil, chemical, and tear resistance. • TPU (Thermoplastic Polyurethane): Similar to PUR but easier to process. The outer sheath is usually thick and tough, resistant to wear, compression, impact, oil, chemicals, UV, and harsh weather. |
| 7. Reinforcement (Optional) | Tensile elements: For applications requiring high tensile strength, textile fibers (e.g., Kevlar) or steel wire ropes may be integrated in the cable core or beneath the sheath to distribute stress and protect conductors.Internal braiding reinforcement: Some cables have internal braid layers to improve resistance to twisting and stretching. |
| Common Trailing Cable Types | ||
| Common Type/Model Examples (Non-Universal) | Key Characteristics | Typical Application Scenarios |
| H07RN-F (European Std.) | Medium mechanical stress, weather/oil resistant | Handheld industrial tools, agricultural machinery, construction sites, stage lighting |
| NSSHÖU (German Std.) | High mechanical stress, torsion/abrasion/oil resistant | Mining equipment, large cranes, automated conveyor lines |
| G, G-GC, W, SHD-GC (US Mining Cable) | Mining-specific, flame retardant, abrasion/impact resistant, grounding protection | Underground mining equipment (roadheaders, coal cutters) |
| Rubber Flat Cable/YVFB | Flat structure, suitable for frequent bending, drag chains | Drag chain systems, robotics, cranes, warehouse logistics |
| PUR Sheath Cable | Excellent abrasion/oil/chemical resistance, good low-temp performance | Harsh industrial environments, robots, machine tools, automated production lines |
| CPE/CSM Sheath Cable | Good heat/oil/ozone resistance, flame retardant | High-temp/oily environments, industrial applications requiring high flame retardancy |
| CHARACTORISTICS OF DIFFERENT MATERIALS | ||
| TYPE OF MATERIAL | ABBR. | PERFORMANCE |
| NATURAL RUBBER | NR | ambient temperature range: -40 ~ +70℃ |
| Soft, elastic, wear-resistant; poor oil & aging resistance | ||
| ETHYLENE PROPYLENE RUBBER | EPR | ambient temperature range: -40 ~ +90℃ |
| EPM | Max. short-circuit temperature: 250℃(max. 5s) | |
| EPDM | Excellent heat, ozone, UV resistance; poor oil resistance | |
| NITRILE RUBBER BUNA | NBR | ambient temperature range: -30 ~ +90℃ |
| Excellent oil resistance, high mechanical strength，but poor weather resistance; Suitable for oily environment or near mechanical equipment. | ||
| NEOPRENE | CR | ambient temperature range: -35 ~ +105℃ |
| Good overall performance, oil resistance, aging resistance, flame retardant, ozone resistance; Suitable for outdoor and light industrial use. | ||
| SILICONE RUBBER | Silicone/SI | ambient temperature range: -60 ~ +180℃ |
| Max. short-circuit temperature: 200℃(max. 5s) | ||
| Excellent high/low temperature performance, excellent electrical insulation, but low mechanical strength; Suitable for high temperature, clean, medical or high-end electronic environments. | ||
| POLYURETHANE | PUR | ambient temperature range: -40 ~ +90℃ |
| thermoplastic material, Superb abrasion, oil, and tear resistance; soft but low heat resistance | ||
| TRIPHENYL PHOSPHATE | TPE/ | ambient temperature range: -40 ~ +105℃ |
| TPP | thermoplastic elastomer, Flexible, recyclable, halogen-free, low-smoke, eco-friendly | |
Min.Bending Radius: 6 × D
Catalogue from Huanghe Cable .pdf
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