3x1.5mm²:
NYY: 16-20A (XLPE insulation allows higher heat dissipation, suitable for warmer environments).
NYM: 14-18A (PVC Insulation has lower thermal tolerance, ideal for indoor, temperature-controlled spaces).
VGV: 18-22A (Heat-resistant insulation enables higher ampacity in high-temperature settings, up to 100°C ambient).
3x2.5mm²:
NYY: 20-25A (Commonly used for medium-power industrial circuits).
NYM: 18-22A (Standard for residential power outlets and kitchen appliances).
VGV: 22-26A (Suitable for heated industrial zones with moderate power demands).
3x4mm²:
NYY: 25-32A (Ideal for commercial air conditioning units and heavy machinery).
NYM: 22-28A (Used in commercial lighting systems and high-power office equipment).
VGV: 28-34A (High-temperature industrial tools and furnace auxiliary wiring).
3x6mm²:
NYY: 40-50A (Three-phase power supplies in factories and large commercial buildings).
NYM: 30-35A (Rarely used due to PVC’s limitations; reserved for heavy-duty indoor applications).
VGV: 45-55A (Industrial furnaces, power plants, and high-temperature machinery with high current demands).
NYY: Rated for 0.6/1kV (suitable for low-voltage distribution networks).
NYM: Rated for 0.6/1kV (standard for indoor low-voltage systems).
VGV: Available in 0.6/1kV and 1.8/3kV variants (the latter for industrial high-voltage, high-temperature applications).
3x1.5mm²: ~7.5% voltage drop at maximum load (requires careful planning for long-distance lighting circuits).
3x2.5mm²: ~4.5% voltage drop (adequate for most residential and commercial runs).
3x4mm²: ~2.8% voltage drop (ideal for commercial equipment with strict voltage tolerance).
3x6mm²: ~1.8% voltage drop (minimal loss, suitable for industrial machinery).
Conductors: Stranded copper (Class 5 flexible) or aluminum (for cost-sensitive, low-corrosion areas). Copper is preferred for its higher conductivity (≥58 S/m) and Flexibility.
Insulation: Cross-linked polyethylene (XLPE), which offers:
Excellent thermal resistance (-40°C to 90°C continuous operation).
Chemical Resistance to oils, acids, and alkalis.
High dielectric strength (≥20kV/mm), reducing the risk of electrical breakdown.
Sheath: Outer layer of polyvinyl chloride (PVC) with a minimum thickness of 1.2mm, providing:
Mechanical protection against abrasion and impact.
Moisture resistance (IP68 rating when properly installed).
Flame retardancy (compliant with IEC 60332-1-2).
Core Identification: Color-coded insulation (brown, black, gray for phases; green-yellow for earth).
Conductors: Solid or stranded copper (Class 2 rigid for fixed wiring, Class 5 flexible for tight bends).
Insulation: PVC (rated for -15°C to 70°C), chosen for:
Low cost and ease of processing.
Flexibility (10x conductor diameter bend radius).
Good dielectric properties for indoor use.
Sheath: Flat or round PVC Sheath (0.8mm thickness), designed to:
Simplify installation in wall cavities and cable trays.
Resist dust and minor moisture (not suitable for wet locations).
Core Identification: Color-coded (live: brown/black; neutral: blue; earth: green-yellow).
Conductors: Tinned copper (prevents oxidation at high temperatures) or nickel-plated copper (for extreme heat).
Insulation: Mica tape or glass fiber (rated for -20°C to 180°C, with some variants up to 250°C), offering:
Fire resistance (self-extinguishing, low smoke emission).
Thermal stability under prolonged high temperatures.
Resistance to radiation in nuclear or industrial settings.
Sheath: Silicone rubber or fiberglass braid with PVC coating, providing:
Flexibility in high-heat environments.
Chemical resistance to oils and solvents.
Mechanical strength for industrial machinery vibration.
Core Identification: Numbered or color-coded with heat-resistant ink.
Underground Installations: Direct burial in soil or concrete, thanks to their moisture and chemical resistance. Used for connecting residential neighborhoods to the main power grid.
Industrial Facilities: Factories, warehouses, and manufacturing plants, where cables may be exposed to oils, coolants, or physical impact from heavy equipment.
Outdoor Lighting: Streetlights, parking lot fixtures, and garden lighting systems, as they withstand rain, UV radiation, and temperature fluctuations.
Marine Environments: Harbors and docks (with additional anti-corrosion treatment) due to their resistance to saltwater.
Residential Wiring: Internal Wiring for homes, including lighting circuits, power outlets, and home appliances (e.g., TVs, washing machines).
Commercial Buildings: Offices, shops, and restaurants, where flexibility and ease of installation in drywall or ceiling voids are prioritized.
Renovation Projects: Retrofitting old buildings, as their flexibility allows routing through existing wall cavities without major structural modifications.
Low-Voltage Control Systems: Interconnecting sensors, switches, and control panels in HVAC systems or security networks.
High-Temperature Industrial Zones: Steel mills, foundries, and glass manufacturing plants, where ambient temperatures exceed 100°C.
Power Generation: Boiler rooms, turbine enclosures, and incineration facilities in power plants.
Aerospace and Automotive: Engine compartments, where cables must withstand heat from combustion and machinery.
Nuclear Facilities: Areas with radiation exposure, as mica insulation resists degradation from ionizing radiation.
Emergency Systems: Fire alarm circuits and emergency lighting, as they maintain functionality during high-temperature events.
Conductor Drawing: Copper rods are drawn through dies to achieve the desired diameter (1.38mm for 1.5mm², 1.78mm for 2.5mm², etc.), then stranded to enhance flexibility.
XLPE Insulation Extrusion: Conductors are coated with XLPE using a cross-linking process (either chemical or electron beam) to form a thermoset insulation layer, ensuring thermal stability.
Core Stranding: Insulated Conductors are twisted together with a filler (polypropylene rope) to form a round core, reducing sheath thickness and improving flexibility.
Sheath Extrusion: PVC compound is extruded over the Stranded Cores, with a thickness determined by the cable size (e.g., 1.2mm for 3x6mm²).
Testing: Each cable undergoes high-voltage testing (2.5kV for 5 minutes), insulation resistance measurement, and mechanical strength checks.
Conductor Preparation: Solid copper rods are annealed to increase ductility, then drawn to size. Stranded Conductors are twisted from fine wires.
PVC Insulation: Molten PVC is extruded onto conductors, with precise temperature control (180-200°C) to avoid degradation.
Sheath Formation: Insulated conductors are laid flat or twisted, then encased in a PVC sheath via extrusion. Flat sheaths are preferred for residential wiring to reduce installation space.
Quality Control: Tests include flame retardancy (vertical burning test), insulation resistance, and dimensional checks (conductor diameter, sheath thickness).
Tinned Conductor Manufacturing: Copper Conductors are electroplated with tin to prevent oxidation, ensuring long-term conductivity at high temperatures.
Mica Tape Wrapping: Conductors are wrapped with mica paper (bonded with silicone resin) in multiple layers to achieve fire resistance.
Glass Fiber Braid: A braided glass fiber layer is applied over the mica insulation for mechanical strength.
Sheath Application: Silicone rubber is extruded over the braid, or a PVC-coated fiberglass sheath is applied for additional protection.
High-Temperature Testing: Cables are subjected to thermal cycling (-20°C to 180°C) for 1000 hours to verify insulation integrity, followed by dielectric strength tests.
NYY Cables: Heavy-duty wooden or steel reels (diameter: 300mm for 3x1.5mm², up to 1200mm for 3x6mm²) to support their weight. Each reel holds 100m, 250m, or 500m, with a maximum weight of 500kg per reel. Reels are fitted with steel flanges and a central axle for easy lifting with forklifts.
NYM Cables: Lightweight cardboard or plastic spools (diameter: 150mm to 500mm) for 50m, 100m, or 200m lengths. Spools are designed for manual handling, with a hole in the center for mounting on dispensing racks during installation.
VGV Cables: Heat-resistant cardboard reels or metal drums (for longer lengths) to protect the mica and silicone components. Reels are lined with moisture-absorbing desiccants to prevent degradation of insulation.
Outer Wrapping: All reels are wrapped in polypropylene film (100μm thickness) to resist moisture and dust. VGV reels include an additional layer of aluminum foil for enhanced moisture barrier.
Edge Protection: Steel reels for NYY cables have plastic edge guards to prevent damage during stacking. Cardboard spools for NYM cables have reinforced edges to avoid crushing.
Labeling: Each reel/spool features a weather-resistant label with:
Cable type, size, and length.
Batch number and manufacturing date.
Electrical specifications (voltage, ampacity).
Compliance marks (CE, UL, IEC).
Handling instructions (e.g., "Do not drop," "Store in dry place").
Bulk Orders: For industrial clients, cables can be delivered in bulk on pallets (up to 10 reels per pallet), shrink-wrapped for stability.
Cut-to-Length: Custom lengths (e.g., 30m, 75m) are available, packaged in sealed plastic bags with labels, ideal for small-scale projects.
Branded Packaging: Private-label reels with customer logos are offered for distributors, enhancing brand visibility.
Carriers: DHL, FedEx, and local logistics partners (e.g., DPD in Germany, La Poste in France).
Delivery Times: 1-3 business days for standard orders; 24-hour express delivery available for urgent requests.
Transport Modes: Road transport via temperature-controlled trucks (to avoid extreme heat/cold affecting PVC insulation). Cables are secured with straps to prevent movement during transit.
Carriers: Maersk (sea freight), Lufthansa Cargo (air freight).
Transit Times:
Sea: 2-6 weeks (depending on destination; e.g., 2 weeks to the UK, 6 weeks to Australia).
Air: 3-7 days (express service for urgent orders).
Export Documentation:
Commercial invoice with HS codes (e.g., 8544.42 for Insulated power cables).
Certificate of Conformity (CoC) confirming compliance with destination country standards (e.g., UL for the US, AS/NZS for Australia).
Packing list detailing reel quantities, lengths, and weights.
Temperature Control: Cables are transported in climate-controlled containers (15-30°C) to prevent PVC degradation (below 0°C can cause brittleness; above 40°C can soften insulation).
Mechanical Protection: Reels are stacked with wooden spacers to avoid pressure on the outer sheath. Steel reels are secured with chains to prevent tipping.
Moisture Prevention: Desiccants are placed in sea freight containers, and reels are wrapped in waterproof plastic to resist condensation.
Sample Availability: Free samples (up to 5m length) of NYY, NYM, and VGV cables are provided upon request, with customers covering only shipping costs.
Custom Samples: For non-standard configurations (e.g., special colors, custom lengths), samples are available for a fee (refundable upon bulk order).
Lead Time for Samples: Standard samples ship within 24 hours; custom samples take 3-5 business days.
Minimum Order Quantity (MOQ):
Standard sizes (3x1.5mm², 3x2.5mm²): MOQ of 100m per type.
Larger sizes (3x4mm², 3x6mm²): MOQ of 50m per type.
VGV cables: MOQ of 25m due to specialized production.
Order Placement: Orders can be placed via email, online portal, or through a sales representative. A confirmation with delivery date is sent within 2 hours.
Payment Terms:
Domestic: 30-day net for established customers; 50% deposit for new clients.
International: Irrevocable letter of credit (L/C) or 30% deposit, 70% upon shipping.
Standard Orders: 5-7 business days for NYY and NYM cables; 7-10 days for VGV cables.
Bulk Orders (>10,000m): 14-21 days, with production schedules provided weekly.
Rush Orders: 2-3 business days for NYY/NYM (additional 20% fee); 4-5 days for VGV (additional 30% fee).
Coverage: 5-year warranty against manufacturing defects (e.g., insulation cracks, conductor breakage) under normal operating conditions. Warranty does not cover damage from improper installation, mechanical abuse, or exposure to chemicals beyond the cable’s rated tolerance.
Claims Process: Customers must submit a warranty claim within 30 days of discovering a defect, including photos, batch number, and proof of purchase. A technical team will assess the claim and, if valid, arrange for replacement or refund.
Installation Guidance: Providing datasheets, installation manuals, and video tutorials on proper handling (e.g., minimum bend radius for NYY is 12x cable diameter).
On-Site Support: For large industrial projects, technical engineers can visit sites to inspect installations, troubleshoot issues (e.g., voltage drop problems), and recommend solutions.
Return Policy: Unused, unopened cables can be returned within 30 days of delivery for a full refund, minus shipping costs. Customized cables are non-returnable.
Replacement Process: Defective cables are replaced within 7-10 business days of claim approval. 加急订单 (Rush orders) may incur additional fees but are prioritized for urgent replacements.
Hongtai Kablo Teknoloji Co., Ltd
E-posta: Export@qlcables.com
sales@qlcables.com
Tel/whatsapp:+86-18032066271
Ekle ： Xiaokou Endüstriyel Kalkınma Bölgesi, Ningjin County, Xingtai City ， Hebei Eyaleti, Çin
Telif Hakkı © Hongtai Cable Technology Co., Ltd Teknik Destek:Ronglida teknolojisi
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