Yellow-green grounding wire harness, high-conductivity safety grounding wire.

Yellow-green grounding wire harness, high-conductivity safety grounding wire.

Details

Winna Yellow-Green Grounding Wire Harness (High Conductivity Safety Ground Wire) is a high-performance grounding connection component designed for industrial electrical systems, power equipment, and new energy devices. It uses high-quality yellow-green dual-color insulation sheath and high-conductivity copper core conductor to ensure low resistance and high reliability grounding path, effectively preventing static accumulation, leakage, and lightning damage. Widely used in distribution cabinets, photovoltaic inverters, electric vehicle charging piles, data center cabinets, and building electrical grounding systems, meeting global safety standards.

Technical Specifications

Conductor MaterialHigh-purity oxygen-free copper (copper content ≥99.95%)
Insulation SheathYellow-green dual-color PVC/TPE (temperature resistance -40°C to +105°C)
Cross-sectional Area Range1.5mm² – 50mm² (AWG 16 – AWG 1/0)
Rated Voltage600V / 1000V (depending on wire gauge)
Standard Length0.3m – 5m (customizable)

Product Features

  • High Conductivity: Multi-strand stranded copper core design with extremely low resistivity ensures stable and reliable grounding loop.
  • Dual Safety Identification: International standard yellow-green dual-color sheath clearly distinguishes ground wire, avoiding misconnection risk.
  • Weather Resistance and Flame Retardancy: Insulation material passes UL VW-1 flame retardant test, oil-resistant, acid-alkali resistant, UV-resistant.
  • Flexible and Easy to Install: Wire harness has high flexibility, suitable for wiring in narrow spaces, supports terminal pre-crimping or custom connectors.

Application Scenarios

Industrial Power Distribution and Control Systems

Used for grounding busbar connection in distribution cabinets, MCC cabinets, PLC control cabinets, ensuring operator and equipment safety, complying with IEC 60364 grounding standards.

New Energy and Electric Vehicle Facilities

Grounding circuit for photovoltaic inverters, energy storage systems, charging piles, effectively discharging lightning-induced current and fault current, improving system EMC performance.

Frequently Asked Questions

What is the difference between yellow-green grounding wire harness and ordinary black wire?
Yellow-green dual color is the internationally recognized ground wire identification (IEC 60446), used to distinguish phase wire (L) and neutral wire (N), avoiding misconnection during maintenance or installation. Winna products use high-conductivity copper core and special sheath, with lower grounding resistance and much higher safety than ordinary wire.
Does Winna grounding wire harness support custom length and terminals?
Yes, we provide OEM/ODM services. Custom wire harness length, stripping length, crimping terminal type (such as O-type, Y-type, fork type), and cable color identification can be customized according to customer drawings, with flexible minimum order quantity.
Does the product have international safety certifications?
Winna yellow-green grounding wire harness has passed CE, FCC, UL, RoHS, and ISO 9001 quality management system certifications, complying with EU Low Voltage Directive (LVD) and North American UL 758 standard, exportable to global markets.

About Winna Technology

Winna Technology specializes in power adapters, AC/DC cable harness customization, and ultrasonic metal welding equipment R&D and manufacturing, providing one-stop OEM/ODM services.

Our products are CE/UL/FCC/CCC/RoHS certified, with an annual return rate below 0.02%, serving customers in 50+ countries and regions worldwide.

MANUFACTURING PROCESS

Wire Harness Customization & Processing Flow

From requirement confirmation to finished product delivery, 10 processes with strict checks at every stage ensure each wire harness meets the highest quality standards

10
Standard Processes
100%
Electrical Testing
Full
Quality Traceability
OEM/ODM
Customization Support

We have comprehensive wire harness customization and processing capabilities, covering the entire process from requirement confirmation to finished product delivery. The following is the standard wire harness processing workflow, with strict quality control standards at each step to ensure product consistency and reliability.

01
Step 1 Review Wire Harness Specifications

Confirm Requirements, Start with Precision

Before production, engineering confirms the specifications based on the customer's drawings and specifications. Any pending items are communicated with the customer to resolve production questions before finalizing the manufacturing process, ensuring every step is accurate.

02
Step 2 Wire (Cable) Cutting

Cutting Precision Down to the Millimeter

Cut wires (cables) to the required length and coil them. Operators carefully verify the specifications on the production work order before cutting, using calibrated advanced equipment to ensure the processing quality of each wire.

03
Step 3 Wire Pre-Processing

Professional Stripping, Precision Pre-Soldering

Remove the wire jacket (outer sheath) and any unnecessary fillers. Use a professional pneumatic wire stripper to strip the jacket, then perform pre-soldering. Adjust the equipment precisely according to each wire specification to ensure zero damage to the core conductor.

04
Step 4 Terminal Crimping

Secure Connection, Reliable Transmission

Crimp the terminal to the wire (cable) core conductor. Use a professional terminal crimping machine, with dedicated crimping dies for different terminals. Strictly adjust the machine and check the crimping specifications before operation to ensure each terminal connection is firm and reliable.

05
Step 5 Connector Assembly Processing

Fine Assembly, Quality Assurance

According to the engineering drawing, sort the crimped core wires, assemble them into the connector housing, and reinforce the wire harness strength. All processing methods strictly follow the engineering drawing and SOP, using specialized tools to ensure consistency.

06
Step 6 Wire Labeling

Full Traceability at a Glance

Attach labels containing information such as specifications, ID, and serial number to each customized wire. Labels help assembly personnel quickly find the corresponding interface and facilitate future traceability of production history, enabling full-process digital management.

07
Step 7 Wire Harness Visual Inspection

Self-Inspection & Peer Check, Layered Control

After assembly, perform self-inspection during wire harness production based on the production work order drawings and dimensions, ensuring all manufacturing details are confirmed. Every step is recorded, and every link is traceable.

08
Step 8 Electrical Characteristics Testing

Four-Wire Testing, Zero Defects Outgoing

All completed wire harnesses undergo continuity testing, resistance measurement, wire position measurement, and insulation resistance testing using a four-wire electrical tester. They are only released after confirming normal electrical characteristics, ensuring each wire harness meets design standards.

09
Step 9 Finished Product QC & Image Recording

Digital Archiving, Traceable Quality

Record and archive images of the finished wire harness. Production engineering data and appearance are digitally archived for easy future review, modification, or addition. Digital management ensures precise reproduction of wire harnesses with the same specifications.

10
Step 10 Packaging & Shipping

Safe Protection, On-Time Delivery

Carefully package with cushioning materials to ensure no damage during transportation, and ship according to the specified method. Full tracking from packaging to logistics ensures products are delivered safely and on time to the customer.

Need Wire Harness Customization Services?

From solution design to mass production, Winna Technology provides one-stop wire harness customization solutions

Contact for Customization →

Specifications

MANUFACTURING PROCESS

Wire Harness Customization & Processing Flow

From requirement confirmation to finished product delivery, 10 processes with strict checks at every stage ensure each wire harness meets the highest quality standards

10
Standard Processes
100%
Electrical Testing
Full
Quality Traceability
OEM/ODM
Customization Support

We have comprehensive wire harness customization and processing capabilities, covering the entire process from requirement confirmation to finished product delivery. The following is the standard wire harness processing workflow, with strict quality control standards at each step to ensure product consistency and reliability.

01
Step 1 Review Wire Harness Specifications

Confirm Requirements, Start with Precision

Before production, engineering confirms the specifications based on the customer's drawings and specifications. Any pending items are communicated with the customer to resolve production questions before finalizing the manufacturing process, ensuring every step is accurate.

02
Step 2 Wire (Cable) Cutting

Cutting Precision Down to the Millimeter

Cut wires (cables) to the required length and coil them. Operators carefully verify the specifications on the production work order before cutting, using calibrated advanced equipment to ensure the processing quality of each wire.

03
Step 3 Wire Pre-Processing

Professional Stripping, Precision Pre-Soldering

Remove the wire jacket (outer sheath) and any unnecessary fillers. Use a professional pneumatic wire stripper to strip the jacket, then perform pre-soldering. Adjust the equipment precisely according to each wire specification to ensure zero damage to the core conductor.

04
Step 4 Terminal Crimping

Secure Connection, Reliable Transmission

Crimp the terminal to the wire (cable) core conductor. Use a professional terminal crimping machine, with dedicated crimping dies for different terminals. Strictly adjust the machine and check the crimping specifications before operation to ensure each terminal connection is firm and reliable.

05
Step 5 Connector Assembly Processing

Fine Assembly, Quality Assurance

According to the engineering drawing, sort the crimped core wires, assemble them into the connector housing, and reinforce the wire harness strength. All processing methods strictly follow the engineering drawing and SOP, using specialized tools to ensure consistency.

06
Step 6 Wire Labeling

Full Traceability at a Glance

Attach labels containing information such as specifications, ID, and serial number to each customized wire. Labels help assembly personnel quickly find the corresponding interface and facilitate future traceability of production history, enabling full-process digital management.

07
Step 7 Wire Harness Visual Inspection

Self-Inspection & Peer Check, Layered Control

After assembly, perform self-inspection during wire harness production based on the production work order drawings and dimensions, ensuring all manufacturing details are confirmed. Every step is recorded, and every link is traceable.

08
Step 8 Electrical Characteristics Testing

Four-Wire Testing, Zero Defects Outgoing

All completed wire harnesses undergo continuity testing, resistance measurement, wire position measurement, and insulation resistance testing using a four-wire electrical tester. They are only released after confirming normal electrical characteristics, ensuring each wire harness meets design standards.

09
Step 9 Finished Product QC & Image Recording

Digital Archiving, Traceable Quality

Record and archive images of the finished wire harness. Production engineering data and appearance are digitally archived for easy future review, modification, or addition. Digital management ensures precise reproduction of wire harnesses with the same specifications.

10
Step 10 Packaging & Shipping

Safe Protection, On-Time Delivery

Carefully package with cushioning materials to ensure no damage during transportation, and ship according to the specified method. Full tracking from packaging to logistics ensures products are delivered safely and on time to the customer.

Need Wire Harness Customization Services?

From solution design to mass production, Winna Technology provides one-stop wire harness customization solutions

Contact for Customization →

Certifications

Products meet international safety and EMC standards

I9
ISO 9001
Quality Mgmt
I5
IATF 16949
IATF 16949
UL
UL
N America UL
CE
CE
EU Safety Certified
CC
CCC
China CCC
Ro
RoHS
RoHS Compliant
RE
REACH
EU REACH
IP
IPC/WHMA-A-620
IPC/WHMA-A-620