Grounding Braid, Straps

Image	Part Number	Description / PDF	Quantity	Rfq
	BB-CU15B Quatech / B+B SmartWorx	GRD BRAID 1.5 X .016 COP STRAP	0

Image

Part Number

Description / PDF

Quantity

Rfq

BB-CU15B

Quatech / B+B SmartWorx

GRD BRAID 1.5 X .016 COP STRAP

Grounding Braid, Straps

1. Overview

Grounding braids and straps are conductive components designed to establish low-resistance electrical connections between equipment, systems, or structures and grounding points. They play a critical role in ensuring electrical safety, mitigating electromagnetic interference (EMI), and protecting against static discharge. These components are essential in modern electronics, industrial machinery, and infrastructure systems where reliable grounding is vital for operational integrity and personnel safety.

2. Main Types & Functional Classification

Type	Functional Features	Application Examples
Flat Braided Straps	High flexibility, large surface area for EMI shielding	Automotive battery grounding, aerospace equipment
Helical Coiled Straps	Self-adjusting length, vibration resistance	Industrial robotics, moving machinery
Rectangular Cross-section Straps	Uniform current distribution, high thermal stability	Power substations, large-scale servers
Multi-strand Cable Braids	High tensile strength, corrosion resistance	Marine equipment, outdoor infrastructure

3. Structure & Composition

Typical grounding braids/straps consist of:

Conductive Core: Annealed copper, aluminum, or tinned copper for optimal conductivity
Braiding Structure: Woven strands (32-128 carriers) with 8-32 picks per inch for mechanical flexibility
Protective Coating: PVC, nylon, or fluoropolymer jackets for environmental protection
Termination: Ring terminals, spade connectors, or compression fittings with corrosion-resistant plating

4. Key Technical Parameters

Parameter	Value Range	Importance
DC Resistance	0.05-0.5 /m	Determines grounding effectiveness
Current Capacity	50-500A	Ensures thermal stability under fault conditions
Frequency Range	DC-10GHz	Impacts EMI shielding performance
Temperature Range	-55 C to +200 C	Material performance in extreme environments
Tensile Strength	100-500N	Ensures mechanical durability

5. Application Fields

Electronics Manufacturing: Semiconductor fabrication equipment, PCB assembly lines
Energy Systems: Solar inverters, wind turbine generators, battery energy storage systems
Transportation: EV battery packs, railway signaling systems, aircraft avionics
Telecommunications: 5G base stations, data center server racks, fiber optic cabinets
Industrial Automation: CNC machines, robotic arms, PLC control panels

6. Leading Manufacturers & Products

Manufacturer	Representative Product	Key Features
TE Connectivity	Raychem Bonding Straps	Low-resistance silver-coated copper, aerospace certification
3M	Dynatel Electronic Grounding Braids	Multi-layer aluminum-copper hybrid construction
Panduit	FlexBond Grounding System	Modular design with quick-connect terminals
Molex	EclipseShield EMI Braids	Integrated shielding effectiveness up to 10GHz

7. Selection Guidelines

Calculate required current capacity based on system fault current levels
Choose material compatibility with operating environment (e.g., corrosion resistance for marine use)
Match braid geometry to available installation space and movement requirements
Verify compliance with relevant standards (UL 1474, MIL-STD-1310, IEC 62305)
Consider termination type compatibility with existing equipment

8. Industry Trends & Development

Current trends include:

Miniaturization for compact electronics while maintaining high current capacity
Integration of smart materials with self-healing properties
Increased adoption of aluminum alloys for weight-sensitive applications
Development of eco-friendly coatings meeting RoHS and REACH standards
Growing demand for hybrid grounding solutions combining mechanical and wireless grounding

Market forecasts predict a CAGR of 6.2% (2023-2030) driven by renewable energy expansion and 5G infrastructure deployment.

9. Practical Application Case

A major electric vehicle manufacturer implemented copper-aluminum hybrid grounding straps in their Model X battery packs. The solution reduced overall weight by 28% while maintaining 400A fault current capacity, achieving both performance and cost optimization. The straps incorporated vibration-damping features that extended service life by 40% in harsh road conditions.