CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 2 Years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤1.47h
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SummaryQingdao Changdi is a limited company with a focus on R&D and fine production, primarily in lightning protection equipment. It has been exporting for two years and provides comprehensive customization services. The company operates without any associated larger group and has a modest workforce of 22 employees. Despite having OEM capabilities for notable brands, its financial performance over recent years has been stagnant, with zero operating revenue and profit. The company has procedures for quality and service management but lacks overseas warehousing and showroom services.
Supplier typeQingdao Changdi is a Limited Company and is not part of any larger company group.
After-Sales capabilityThe company emphasizes excellent after-sales service and has clear procedures for handling customer complaints and corrective actions.
Financial creditThe supplier has reported zero operating revenue and profit for the last three years, indicating financial stagnation.
Production capacityThe supplier has a diverse range of production facilities and valid contracts for manufacturing capacity with subcontractors.
Customization capabilityThe company offers extensive customization options, including full customization from samples or designs.
Product Q&A
Q:What are the characteristics and applications of copper-clad steel grounding rods?
A:
These rods feature independent monitoring and digital communication capabilities. They are suitable for general and special environments including humid, saline, alkali, and acidic soils. Applications include power plants, substations, transmission towers, communication base stations, airports, railways, and petrochemical plants for lightning protection and anti-static grounding.
Q:Why are copper plated grounding rods used for lightning protection?
A:
They provide a safe pathway for electrical energy dissipation, ensuring safety. They offer a stable and consistent grounding reference point with low resistance. They also protect against stray voltage which can damage equipment or cause fires. They are durable, corrosion-resistant, and cost-effective.
Q:What are the benefits of pure copper grounding materials compared to copper plated materials?
A:
Pure copper offers 8 times the conductivity of steel and over 10 times the corrosion resistance, with a lifespan exceeding 40 years. Copper plated materials balance cost and mechanical strength by using a steel core, making them suitable for most engineering scenarios, though the thinner copper layer may affect long-term corrosion resistance slightly.
Q:What is the service life of the grounding rod?
A:
Copper clad steel rods last over 30 years. Pure copper rods last over 40 years. Galvanized steel rods last 10-15 years. Lifespan depends on soil corrosiveness, temperature, and humidity. Copper clad steel offers high cost-effectiveness, while pure copper is more durable.
Q:How to choose the appropriate size for a grounding rod?
A:
Rod length typically ranges from 4 to 10 feet with a diameter of 1/2 to 1 inch. Selection depends on specific project needs. Please refer to the detailed size guide to ensure the correct size for your project.
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