BV (Solid Conductor): Each BV Cable features a single solid Copper Core. The diameter of the solid conductor varies by size: 8.0mm for 50mm², 9.2mm for 70mm², 10.6mm for 95mm², 11.8mm for 120mm², and 13.5mm for 150mm². This solid construction provides high rigidity, which simplifies installation in fixed, non-flexing environments such as wall cavities or conduit systems.

BVR (Stranded Conductor): BVR Cables consist of multiple Stranded Copper Wires twisted together. The number of strands increases with cable size: 50mm² (19 strands of 1.8mm), 70mm² (19 strands of 2.2mm), 95mm² (37 strands of 1.8mm), 120mm² (37 strands of 2.0mm), and 150mm² (37 strands of 2.3mm). This stranded design enhances Flexibility, allowing the cable to bend with a minimum radius of 6 times the outer diameter (e.g., 60mm for a 10mm outer diameter cable), making it ideal for tight spaces and dynamic applications.

Copper Conductors: The conductors are manufactured from high-purity electrolytic copper with a minimum purity of 99.95%. This high purity ensures excellent electrical conductivity, with a minimum conductivity of 58 MS/m at 20°C, minimizing energy loss during fault current dissipation. The copper undergoes annealing at temperatures between 400°C and 600°C to enhance ductility, allowing for easy stripping of insulation and secure termination without cracking.

PVC Insulation: The insulation is a specially formulated polyvinyl chloride compound designed for electrical applications. Key properties include:

IEC 60446: Specifies marking of Insulated Conductors for electrical installations.

DIN VDE 0100: German standard for electrical installations in buildings.

GB 7947: Chinese standard for insulated conductors used as protective conductors.

Current-Carrying Capacity: Under standard conditions (ambient temperature 30°C, installation in free air), the current ratings are as follows:

DC Resistance: At 20°C, the maximum DC resistance per kilometer is:

Insulation Resistance: Measured at 1000V DC, the insulation resistance is ≥100 MΩ·km at 20°C, ensuring minimal leakage current and effective isolation of the conductor from external surfaces.

Dual Configuration Options: The availability of both solid (BV) and stranded (BVR) conductors allows users to select the optimal cable for their specific application. BV is preferred for fixed, rigid installations, while BVR is ideal for flexible routing and applications with vibration.

Enhanced Safety through Color Coding: The yellow-green coloration is not only a visual aid but also a compliance feature, ensuring that the cable is easily identifiable as a ground conductor, reducing installation errors and enhancing safety.

High Fault Current Handling: The cables are designed to withstand short-circuit currents up to 25kA for 1 second, a critical capability in safely dissipating fault energy without damage to the cable or surrounding equipment.

Wide Temperature Range: The ability to operate from -15°C to 70°C makes the cables suitable for use in diverse environments, from cold storage facilities to warm industrial settings.

Residential Buildings: Used to ground electrical panels, water heaters, air conditioners, and metal plumbing systems. In these settings, the cable provides a low-resistance path for fault currents, triggering circuit breakers and preventing electric shock to occupants.

Commercial Buildings: Employed in grounding HVAC systems, lighting fixtures, elevator shafts, and server rooms. The BVR variant is particularly useful in commercial settings due to its flexibility, allowing for easy installation in tight ceilings and wall cavities.

Industrial Facilities: Grounding machinery such as motors, presses, and conveyor systems. The high current-carrying capacity of the larger sizes (95mm²-150mm²) makes them suitable for heavy industrial equipment with high fault current potential.

Renewable Energy Installations: Used in solar farms and wind turbines to ground inverter systems, mounting structures, and battery storage systems. The UV resistance of the PVC insulation ensures longevity in outdoor environments.

Infrastructure Projects: Grounding streetlights, traffic signals, and substation equipment. The durability of the cable ensures reliable performance in harsh outdoor conditions.

Raw Material Testing: Incoming copper rods are tested for purity using atomic absorption spectroscopy, and PVC compounds are evaluated for melt flow rate, flame retardancy, and tensile strength.

In-Process Inspection: During extrusion, samples are taken every 30 minutes to check insulation thickness, color uniformity, and adhesion. Conductors are tested for diameter and conductivity.

Final Testing: Each batch of cable undergoes:

Accelerated Aging Tests: Samples from each batch are subjected to 1000 hours of exposure at 105°C to simulate 20 years of service, ensuring long-term performance.

Traceability: Each spool is labeled with a unique batch number, allowing full traceability back to raw materials and production dates.

Standard Spools: Cables are wound onto plastic spools with the following dimensions:

Bulk Packaging: For large orders, cables are supplied on wooden reels with steel flanges, available in 500m and 1000m lengths. These reels are reinforced to handle heavy loads and include a braking system to prevent over-unwinding.

Custom Lengths: For specialized projects, cables can be cut to custom lengths (minimum 10m) and packaged in sealed poly bags with cardboard inserts to prevent kinking.

Product name: “BVR/BV Electrical Cable 450/750V Earth Ground (Yellow-Green)”

Part number: BV-50, BV-70, BVR-95, etc., indicating conductor type and size.

Conductor Material: “High-purity copper (99.95%)”

Insulation Material: “Flame-retardant PVC (UL94 V-0)”

Voltage rating: “450/750V”

Cross-sectional area: e.g., “50mm²”

Length: e.g., “100m”

Operating temperature range: “-15°C to 70°C”

Standards compliance: IEC 60227, UL 44, GB 5023, CE, UL, CCC logos.

Safety warnings: “For grounding use only. Install in accordance with local electrical codes. Avoid contact with sharp objects and excessive heat.”

Manufacturer information: Name, address, contact details, and website.

Carrier Options: For domestic orders, shipping is available via major courier services (e.g., DHL, FedEx, UPS) for small spools and freight companies (e.g., XPO Logistics) for bulk reels.

Delivery Times: Standard delivery takes 2-3 business days for small packages (≤20kg) and 4-7 business days for larger reels. Express shipping (1-2 business days) is available at an additional cost.

Packaging for Transit: Small spools are placed in cardboard boxes with foam padding to prevent movement. Wooden reels are strapped to pallets and wrapped in stretch film to ensure stability during transport.

Customs Documentation: All international shipments include a commercial invoice, packing list, certificate of compliance (CoC), and material safety data sheet (MSDS). For shipments to the EU, a REACH declaration is provided, confirming that the cable does not contain restricted substances.

Freight Options: Air freight is recommended for urgent orders, with delivery times of 3-5 business days. Sea freight is available for bulk orders, with transit times varying by destination (e.g., 25-30 days to North America, 30-40 days to Asia, 15-20 days to Europe).

Import Considerations: Customers are responsible for import duties, taxes, and customs clearance fees. Our export team provides guidance on local regulations and assists with necessary paperwork to minimize delays.

Handling: Cables should be lifted using the spool’s central hub to avoid damaging the insulation. Mechanical equipment (e.g., forklifts) used to move wooden reels must be equipped with appropriate lifting attachments.

Storage: Cables should be stored in a dry, well-ventilated area away from direct sunlight, heat sources, and chemicals. Spools should be stored horizontally on racks to prevent warping, and the storage temperature should remain between 0°C and 30°C with relative humidity ≤70%.

Shelf Life: When stored under proper conditions, the cables have a shelf life of 5 years from the date of manufacture.

Availability: Free samples of 1m length are available for qualified customers, including electrical contractors, building developers, and OEMs. A nominal shipping fee may apply for international samples.

Request Process: Samples can be requested via our website, email, or phone. Customers must provide their company details, intended application, and shipping address. Samples are typically dispatched within 2 business days.

Sample Testing: Each sample includes a test report with key parameters (conductivity, insulation resistance, flame retardancy) to allow customers to verify performance against their requirements.

Minimum Order Quantity (MOQ): The MOQ for standard spools is 1 spool per size. For custom lengths or specialized packaging, the MOQ is 50m per size.

Pricing: Prices vary based on order quantity, with volume discounts available for orders exceeding 1000m. A detailed price list is provided upon request, and quotes are valid for 30 days.

Payment Terms: For domestic orders, payment terms are 30% deposit upon order confirmation and 70% balance before shipment. For international orders, irrevocable letters of credit (L/C) or T/T (telegraphic transfer) are accepted, with 50% deposit and 50% balance against a copy of the bill of lading.

Lead Times: Standard orders are manufactured and shipped within 5-7 business days. Custom orders (e.g., special lengths, alternative packaging) may take 10-15 business days.

Conductor breakage due to manufacturing defects.

Insulation cracking or peeling without external damage.

Electrical failure (e.g., insulation resistance below 100 MΩ·km) not caused by improper installation.

Improper installation (e.g., exceeding temperature limits, mechanical damage during installation).

Exposure to chemicals or environmental conditions outside the specified range.

Modification or alteration of the cable.

Pre-Installation Consultation: Our engineers are available to advise on cable selection based on specific project requirements, such as load calculations, environmental conditions, and compliance with local codes. This service is available via phone, email, or video conference.

Installation Guidelines: Detailed installation manuals, including step-by-step instructions for stripping insulation, terminating conductors, and ensuring proper grounding, are available in multiple languages on our website. These guides also include diagrams of recommended tools and safety precautions.

On-Site Assistance: For large-scale projects or complex installations, we can dispatch technical representatives to provide on-site support, including training for installation teams and verification of compliance with safety standards. This service is available for a fee, which is quoted based on the project location and scope.

Troubleshooting Hotline: A dedicated hotline is available 24/7 to address urgent issues, such as suspected insulation failure or connectivity problems. Our technical staff can guide customers through diagnostic tests and recommend immediate solutions to ensure safety.

RoHS Compliance: The cables are fully compliant with the Restriction of Hazardous Substances Directive (RoHS 2011/65/EU), ensuring they contain no lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls (PBBs), or polybrominated diphenyl ethers (PBDEs) above permissible limits.

Recyclability: Both Copper Conductors and PVC insulation are recyclable. Copper is 100% recyclable without loss of quality, and PVC can be recycled through specialized facilities into secondary products, reducing environmental impact.

Low Environmental Impact Manufacturing: Our production facilities utilize energy-efficient extrusion equipment and waste reduction processes. PVC scraps generated during manufacturing are collected and recycled internally, minimizing landfill waste.

IEC 60227: International standard for polyvinyl chloride Insulated Cables for rated voltages up to and including 450/750V.

UL 44: Underwriters Laboratories standard for rubber-insulated cables, ensuring compliance with safety requirements for North American markets.

GB 5023: Chinese national standard for rated voltage 450/750V and below insulated cables, covering performance and safety specifications.

CE Marking: Indicates compliance with European Union directives, including the Low Voltage Directive (2014/35/EU) and EMC Directive (2014/30/EU).

CCC Certification: China Compulsory Certification, ensuring compliance with national safety and quality standards for electrical products sold in China.