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Earthing Wire (Copper Ground Wire) is an electrical conductor used to safely carry fault current from electrical equipment and installations to the ground. It helps protect people and equipment from electric shock, short circuits, and lightning-related damage.



Earthing wire is a critical component of electrical grounding systems in residential, commercial, and industrial installations. It is typically made of high-conductivity copper and may be supplied as bare copper or with green/yellow insulation. Proper grounding improves electrical safety, stabilizes system voltage, and ensures protective devices such as circuit breakers and residual current devices (RCDs) operate correctly during fault conditions.

Common Types

  • Bare Copper Earth Wire
  • Green/Yellow Insulated Copper Earth Wire
  • Stranded Copper Ground Wire
  • Solid Copper Ground Wire
  • Tinned Copper Ground Wire
  • Flexible Copper Earthing Cable

Common Features

  • High electrical conductivity
  • Excellent corrosion resistance
  • Durable and long service life
  • Flexible or solid conductor options
  • Available with or without insulation
  • Compatible with standard grounding systems
  • Suitable for indoor and outdoor installations

Common Uses

  • Building electrical grounding
  • Distribution boards and panel grounding
  • Grounding electrical equipment
  • Lightning protection systems
  • Industrial machinery grounding
  • Telecommunications grounding
  • Solar PV grounding systems

Advantages

  • Enhances electrical safety
  • Reduces the risk of electric shock
  • Provides a low-resistance path for fault current
  • Improves equipment protection
  • Corrosion-resistant and durable
  • Easy to install and maintain

Common Materials

  • Bare Copper
  • Annealed Copper
  • Tinned Copper
  • PVC Insulation (Green/Yellow)
  • XLPE Insulation (selected applications)

Typical Specifications

FeatureDescriptionProduct TypeEarthing / Ground WireConductor MaterialCopperConductor TypeSolid or StrandedInsulationBare or Green/Yellow PVC/XLPEConductor Size1.5–120 mm² (application dependent)Voltage Rating450/750 V (insulated types, varies by standard)StandardsIEC, BS, ASTM, or local electrical standards

Typical Applications

  • Residential buildings
  • Commercial buildings
  • Industrial facilities
  • Power distribution systems
  • Electrical panels
  • Data centers
  • Telecommunication systems
  • Solar energy installations
  • Lightning protection systems
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