Ground rods are core components for building an effective grounding network in power systems. They are primarily used to reliably connect the metal casings of power equipment (such as line towers, substation equipment, photovoltaic power plant components, and communication base stations) to the earth. Their core function is to quickly guide lightning and fault currents into the ground, preventing equipment insulation breakdown and electric shock accidents, while also ensuring the stable operation of the power system.
As one of the flagship products of Handan Jinmai Fastener Manufacturing Co., Ltd. (hereinafter referred to as "Handan Jinmai"), ground rods leverage over 10 years of experience in power hardware manufacturing (established in 2018, formerly known as Handan Jinmai Fastener Processing Factory). They utilize an in-house production and customized service model. Material (hot-dip galvanized steel, copper-clad steel), length (1.5m-6m), diameter (14mm-25mm), and surface treatment can be adjusted to meet customer needs. They are widely used in power lines, substations, photovoltaic power plants, communication base stations, and highway electromechanical systems.
Handan Jinmai's ground rods offer the following five core advantages:
1. Superior corrosion resistance and long life
- Hot-dip galvanized steel ground rods: Utilize a hot-dip galvanizing process (compliant with GB/T
2. Excellent electrical conductivity, safe and reliable
- Hot-dip galvanized steel ground rods: Conductivity ≥10% IACS (International Annealed Copper Standard), ensuring rapid dissipation of fault current and reducing ground resistance (≤4Ω, compliant with DL/T 621-1997);
3. High strength, adaptable to complex environments
- Made of high-quality low-carbon steel (Q235) or copper-clad steel, they offer excellent tensile strength.
Handan Jinmai's ground rod production process strictly adheres to the ISO 9001:2015 quality management system, ensuring that each batch of products meets national and industry standards:
1. Material Selection
- High-quality low-carbon steel (Q235) or copper-clad steel is used to ensure conductivity, mechanical strength, and workability.
2. Forming Process
- Cold-drawing is used to draw the steel into round rods of a specified diameter, ensuring the ground rod's straightness (≤ 1mm/m) and dimensional accuracy (diameter error ≤ ±0.5mm).
3. Anti-corrosion Treatment
- Hot-dip galvanized steel ground rods: Hot-dip galvanizing is used to immerse the ground rod in molten zinc (450°C-470°C), forming a uniform, dense zinc layer that metallurgically bonds to the steel and resists detachment.
Diameter (mm): 14/16/18/20/22/25 14/16/18/20/22/25
Length (m): 1.5/2/2.5/3/4/5/6 1.5/2/2.5/3/4/5/6
Zinc Layer Thickness (μm): ≥65 (GB/T 13912-2020) --
Copper Layer Thickness (μm): -- ≥0.25 (GB/T 5230-2020)
Conductivity (%IACS): ≥10 ≥30
Tensile Strength (MPa): ≥400 ≥500
Grounding Resistance (Ω): ≤4 (soil resistivity ≤100Ω·m) ≤4 (soil resistivity ≤200Ω·m)
Service Life (years): ≥20 ≥30
As a leading manufacturer of electrical hardware, Handan Jinmai Fastener Manufacturing Co., Ltd.'s Ground Rods, with their excellent corrosion resistance, electrical conductivity, mechanical strength, and customized services, have become the preferred choice for domestic power projects, photovoltaic power plants, and communication base stations. The company not only provides high-quality products but also provides grounding system design and installation guidance (such as ground resistance testing and grounding grid optimization) to ensure compliance with national standards (such as GB 50057-2010 "Code for Lightning Protection Design of Buildings" and DL/T 621-1997 "Grounding of AC Electrical Installations").
If you require a custom Ground Rod or need more product information, please contact:
- Email: [email protected]
- WhatsApp/WeChat: +86 13831001495
Handan Jinmai—your expert in custom electrical hardware, ensuring the safety of your power system!
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