The BVR Yellow Green Ground Earth Cable, compliant with the H07VK standard, is a specialized electrical wire designed explicitly for protective earthing and grounding systems. Available in conductor sizes ranging from 6mm² to 70mm², this single-core cable combines flexibility, durability, and safety, making it indispensable in residential, commercial, and industrial installations where electrical fault protection is critical. Its distinct yellow-green color coding—universally recognized for grounding applications—ensures easy identification and compliance with international safety standards, while its PVC insulation and stranded copper conductor deliver reliable performance in diverse environments. At the core of this cable is a high-purity stranded copper conductor, engineered to provide low-resistance paths for fault currents. The copper, with a purity of 99.9% or higher, offers exceptional electrical conductivity (≥97% IACS), ensuring that dangerous fault currents (e.g., from short circuits or equipment malfunctions) are rapidly diverted to the earth, preventing electric shock hazards and equipment damage. The stranded design—composed of multiple fine copper strands (typically 50–200 strands, depending on size)—enhances flexibility, allowing the cable to bend easily around corners, fit into tight conduit systems, and withstand repeated handling during installation. This flexibility is particularly valuable in complex installations, such as industrial machinery enclosures or commercial building basements, where routing around structural obstacles is necessary. The conductor sizes (6mm² to 70mm²) cater to varying fault current demands: smaller sizes (6mm² and 10mm²) are ideal for residential or light commercial applications, such as grounding household appliances, distribution boards, or lighting systems. Larger sizes (35mm² to 70mm²) are designed for heavy-duty industrial use, including grounding large machinery, transformers, switchgear, and power distribution networks, where higher fault currents (up to several thousand amps) may occur. Encasing the copper conductor is a robust polyvinyl chloride (PVC) insulation, formulated to meet the H07VK standard—a specification that mandates resistance to heat, moisture, and mechanical stress. The PVC insulation operates reliably within a temperature range of -25°C to 70°C, ensuring stability in both cold and moderately hot environments. It provides excellent electrical isolation, preventing unintended current leakage while protecting the conductor from physical damage, such as abrasion from conduit systems, dust, or moisture. Additionally, the insulation is flame-retardant, meeting standards like UL 94 V-0, which ensures it self-extinguishes in case of fire, reducing the risk of flame spread in critical areas. The cable’s defining feature is its yellow-green color combination, a globally accepted identifier for grounding conductors. This color coding eliminates confusion during installation, ensuring that the cable is correctly connected to earth electrodes, grounding bars, or equipment earthing points—critical for maintaining the integrity of protective systems. Compliance with standards such as IEC 60446 (which specifies color coding for insulated conductors) and H07VK (a European standard for flexible cables) guarantees that the cable meets stringent requirements for conductor resistance, insulation thickness, and mechanical durability. Flexibility is a key attribute of the BVR design, enabled by its fine-stranded conductor and supple PVC insulation. This allows the cable to be coiled, bent, or routed in tight spaces without kinking or damaging the conductor—essential for retrofitting existing installations or navigating complex industrial layouts. The minimum bend radius (typically 4× the cable diameter for static installation and 6× for dynamic movement) ensures that flexibility does not compromise performance, even with repeated handling. Applications of the BVR Yellow Green Ground Earth Cable are diverse and safety-critical: Residential and Commercial Buildings: Used to ground distribution boards, metal enclosures, and appliances (e.g., refrigerators, air conditioners), protecting occupants from electric shocks. Industrial Facilities: Grounds heavy machinery, welding equipment, and factory electrical systems, preventing equipment damage and ensuring worker safety during fault conditions. Power Distribution Networks: Connects transformers, switchgear, and substations to earth electrodes, diverting fault currents away from critical infrastructure. Construction Sites: Temporary grounding of portable generators, scaffolding, and power tools, where mobile equipment poses heightened shock risks. Compliance with the H07VK standard ensures the cable undergoes rigorous testing, including checks for conductor resistance, insulation resistance, flame retardancy, and mechanical strength. These tests validate its ability to perform under fault conditions, ensuring that it can carry high currents without overheating or insulation breakdown. In summary, the BVR Yellow Green Ground Earth Cable H07VK is a specialized safety component that combines high conductivity, flexibility, and durability. Its stranded copper conductor ensures efficient fault current diversion, while PVC insulation and yellow-green color coding provide protection and easy identification. Available in sizes from 6mm² to 70mm², it adapts to diverse grounding needs, from residential appliances to industrial machinery. Whether in new constructions or retrofits, this cable plays a pivotal role in maintaining electrical safety, making it a trusted choice for engineers, electricians, and safety professionals worldwide.

The Earth Yellow Green Wire Copper Ground Earth Cable 35mm² and 50mm² PVC Single Conductor Insulated Electric Power Cable Wire is a vital safety-focused electrical component designed to establish reliable grounding in low-to-medium voltage systems. Its distinct yellow-green dual-color insulation adheres to global electrical safety standards (such as IEC 60446 and NEC 2023), serving as an unambiguous visual identifier for grounding conductors—eliminating the risk of miswiring with phase or neutral cables, which is critical for preventing electric shock and equipment damage. This series, available in 35mm² and 50mm² cross-sectional areas, is engineered to cater to a wide range of grounding needs, from residential and commercial buildings to light industrial facilities, where it provides a low-resistance path for fault currents to dissipate into the ground. At the heart of this cable’s functionality is its high-purity copper conductor, a material selected for its exceptional electrical conductivity and corrosion resistance. The copper used is electrolytic grade with a minimum purity of 99.95%, ensuring optimal current flow and minimal resistance—two key factors for effective grounding. The 35mm² conductor, typically constructed as a stranded core (19 strands of 1.5mm diameter), offers a balance of flexibility and conductivity, while the 50mm² variant (19 strands of 1.8mm diameter) provides enhanced current-carrying capacity for higher fault current scenarios. For instance, the 35mm² copper conductor has a resistance of ≤0.524Ω/km at 20°C, allowing it to safely handle fault currents up to 800A for 1 second—sufficient for residential and small commercial systems. The 50mm² variant, with a resistance of ≤0.378Ω/km, can manage fault currents up to 1200A for 1 second, making it suitable for light industrial equipment like small motors (100kW–200kW) and commercial HVAC systems (50kW–100kW). The PVC (Polyvinyl Chloride) insulation further elevates the cable’s safety and durability. Formulated with a blend of flame-retardant additives (calcium carbonate and antimony trioxide), the insulation meets IEC 60332-1 standards, meaning it self-extinguishes within 30 seconds of removing the ignition source—reducing the risk of fire spread in case of electrical faults. The insulation thickness is calibrated to provide mechanical protection while maintaining flexibility: 1.0mm for the 35mm² cable and 1.2mm for the 50mm² variant. This thickness ensures the cable can withstand minor impacts during installation (e.g., contact with conduit edges) without compromising its insulating properties. Additionally, the PVC insulation is resistant to moisture, common household chemicals (detergents, bleach), and mild industrial oils, making it suitable for both indoor (e.g., building electrical panels) and outdoor (e.g., garden lighting grounding) applications. The yellow-green coloration is achieved using stable, UV-resistant pigments, ensuring the cable remains easily identifiable even after years of exposure to sunlight or harsh environments. Electrical performance is tailored to each size to align with specific application demands. The cable’s rated voltage of 1kV (rms) positions it firmly in low-to-medium voltage systems, compatible with the 230V/400V grids commonly used in residential, commercial, and light industrial settings. Insulation resistance is another critical metric, with both sizes boasting a minimum of 100MΩ at 20°C (tested with a 1kV megohmmeter). This high insulation resistance prevents current leakage, ensuring that fault currents are directed exclusively to the ground rather than escaping through damaged insulation. In practical terms, this means that in the event of a short circuit (e.g., a phase wire touching a metal appliance enclosure), the cable quickly channels the fault current to the ground, triggering the circuit breaker to trip within 0.5–1 second—protecting both personnel and equipment from harm. The application scope of this cable series is diverse, spanning multiple sectors. In residential settings, the 35mm² variant is used to ground main electrical panels, household appliances (refrigerators, electric ovens), and outdoor fixtures (garden lights, EV charging stations). Its flexibility allows it to be routed through wall cavities, under floorboards, and around corners—critical for navigating the tight spaces common in modern homes. The 50mm² cable is ideal for commercial buildings such as shopping malls, offices, and hotels, where it grounds large HVAC systems, elevator motors, and backup generators. In light industrial environments (e.g., small manufacturing workshops, food processing plants), the 50mm² cable is employed to ground small machinery, conveyor belts, and control panels—where higher fault currents may occur due to the larger electrical loads. Compliance with international and regional standards ensures the cable’s reliability and market acceptance. Beyond IEC 60446 and IEC 60228 (conductor standards), the cable meets regional requirements such as GB/T 12706 (China), UL 44 (USA), and BS 6346 (UK). Rigorous testing is conducted during production to validate these standards: conductor resistance tests confirm minimal current loss, dielectric strength tests (2kV AC for 5 minutes) ensure no insulation breakdown, and mechanical bending tests (10 cycles around a mandrel 10× the cable’s outer diameter) verify flexibility. These tests guarantee that the cable performs consistently under real-world conditions, giving installers and end-users confidence in its safety. Durability and ease of installation are additional advantages of this cable series. The stranded copper conductor design enhances flexibility, making the cable easy to handle and route—even in confined spaces. Unlike solid-core conductors, which can crack under repeated bending, the stranded core maintains its integrity, reducing the need for repairs or replacements. The PVC insulation’s resistance to aging ensures a service life of 15–20 years under normal operating conditions (temperature range: -15°C to 70°C), minimizing long-term maintenance costs. Installation is further simplified by the cable’s compatibility with standard grounding components, such as copper lugs, clamps, and earth rods—no specialized tools are required, reducing installation time and labor expenses. In summary, the Earth Yellow Green Wire Copper Ground Earth Cable 35mm² and 50mm² PVC Single Conductor Insulated Electric Power Cable Wire is a reliable, safe, and versatile solution for grounding in low-to-medium voltage systems. Its high-conductivity copper conductor, flame-retardant PVC insulation, and compliance with global safety standards make it suitable for residential, commercial, and light industrial applications. Whether protecting households from appliance faults, commercial buildings from HVAC system failures, or light industrial facilities from machinery malfunctions, this cable delivers the performance and safety needed to mitigate electrical hazards—solidifying its role as a fundamental component in safe electrical design.