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: ≤1.41h
AI-Powered supplier vetting
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 like humid, saline, or acidic soils, and are widely used in power plants, substations, lightning protection, and anti-static grounding for buildings and railways.
Q:Why are copper plated grounding rods used for lightning protection?
A:
They provide a safe pathway for electrical energy dissipation, ensuring system safety. They offer a stable, low-resistance connection to prevent stray voltage and ensure consistent grounding reference points for electrical systems.
Q:What are the benefits of pure copper grounding materials compared to copper plated materials?
A:
Pure copper offers 8x better conductivity and over 10x corrosion resistance (40+ years life) but is costly with lower mechanical strength. Copper plated materials balance cost and strength using a steel core, approaching pure copper performance at a lower price.
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.
Q:What are the standard dimensions and copper thickness for these rods?
A:
Lengths typically range from 4 to 10 feet with diameters of 1/2 to 1 inch. The copper plating thickness is usually 0.254 mm (10 mils), ensuring excellent conductivity and long service life.
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