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High-Performance Copper Shielding Wires - China Suppliers & Factory for EMI/RFI Protection
Technical Data
Material: Annealed Cu-ETP wires, C11000, copper content ≥ 99.95%
Finish: Bare, tin plating
Single Wire Diameter:
• 0.19mm
• 0.25mm
• 0.30mm
Carrier Number: 48
Cross Sectional Area: 15mm² - 40mm²
Packing Modes: In rolls, on spools or wooden drums
Notes: Please provide the conductor diameter inside before placing an order.
Product Display
Model And Meaning
Customization Upon Request
| Part No. | Nominal Cross Section (mm²) | Measured Cross Section (mm²) | Wire Structure Strands × Wire Number Per Strand × Layers / Single Wire Diameter (mm) |
Notes |
|---|---|---|---|---|
| BGT(X)P-30/15 | 15 | 13.56 | 48×4×1/0.30 | Please provide the conductor diameter inside. |
| BGT(X)P-25/16 | 16 | 16.48 | 48×7×1/0.25 | |
| BGT(X)P-30/20 | 20 | 20.35 | 48×6×1/0.30 | |
| BGT(X)P-19/25 | 25 | 24.48 | 48×18×1/0.19 | |
| BGT(X)P-25/25 | 25.91 | 48×11×1/0.25 | ||
| BGT(X)P-30/25 | 23.74 | 48×7×1/0.30 | ||
| 27.13 | 48×8×1/0.30 | |||
| BGT(X)P-30/30 | 30 | 30.52 | 48×9×1/0.30 | |
| BGT(X)P-25/35 | 35 | 35.33 | 48×15×1/0.25 | |
| BGT(X)P-30/40 | 40 | 40.69 | 48×12×1/0.30 | |
| BGT(X)P-25/50 | 50 | 49.46 | 48×21×1/0.25 |
Advantages
High Shielding Effectiveness: Braid coverage up to 85%-95%, effectively blocks electromagnetic interference (EMI) and radio frequency interference (RFI) with excellent attenuation.
High Conductivity: Cu-ETP C11000 pure copper ensures extremely low grounding impedance for the shield, improving signal integrity.
Good Flexibility: Braided structure easily bends and wraps, suitable for tight bending radii and dynamic flexing cables without damaging inner insulation.
Tin-plating Option: Tin-plated copper shielding wires provide better corrosion resistance in humid, salt spray or sulfur-containing environments, extending service life.
Flexible Customization: Various wire diameters, cross sections and braid densities available. Precise matching based on customer-provided conductor diameter, no MOQ restriction.
Operating Conditions
Temperature Range: Bare copper -40°C to +150°C; tin-plated copper -40°C to +150°C (short-term up to +180°C).
Suitable Environment: Bare copper for dry indoor use; tin-plated for humid, salt spray, mild acid/alkali and industrial polluted areas.
Installation Requirements: The braid shall evenly cover the inner conductor. Ensure reliable contact with grounding rings or shield clamps when grounding both ends. Bending radius ≥ 5 times outer diameter of shielding wire recommended.
Electrical Conditions: For shielding in 100kHz~1GHz frequency range; grounding resistance should be as low as possible (<10mΩ).
Maintenance
Visual Inspection: Every 6 months check for broken strands, oxidation/discoloration (bare copper) or tin peeling (tin-plated).
Cleaning: Blow off dust with dry, oil-free compressed air; for oil contamination, wipe gently with an alcohol swab and dry thoroughly. Do not use acidic or alkaline cleaners.
Grounding Check: Check tightness of grounding connections at both ends; measure shield-to-ground resistance.
Avoid Mechanical Damage: Prevent sharp edge scraping or over-stretching during installation and use to avoid reducing shielding coverage.
Service Life
Under normal indoor conditions (-40°C to +120°C, no corrosive gases, static installation), the designed service life of copper shielding wires is 15-20 years. Tin-plated copper shielding wires can achieve 12-15 years in humid or mildly corrosive environments.
Thanks to pure copper material and single-layer braid construction, no replacement is needed within the normal service life of the cable.
For frequent flexing or vibration applications, it is recommended to check continuity and coverage every 2-3 years.
After-Sales Service
Free technical support: Engineering consultation, drawings...
Custom orders: Lead time & quality report provided before shipment
Customization Upon Request
Zhejiang Bridgold Copper Tech Co., Ltd. is a professional leader China copper braid flat, copper braid wire, copper braid wire flat, copper braided wire, copper earth braid manufacturers and suppliers with high quality and low price. Welcome to contact us.
Frequently Asked Questions (FAQ)
They are manufactured with annealed Cu-ETP wires (C11000) with copper content ≥ 99.95%, available in bare copper and tin-plated finishes.
The braided shielding achieves an 85% to 95% coverage rate, effectively mitigating EMI and RFI interference across 100kHz to 1GHz frequencies.
Both bare and tin-plated copper withstand standard ranges of -40°C to +150°C, with tin-plated versions withstanding short-term exposures up to +180°C.
Under normal indoor conditions, the designed service life is 15-20 years for bare copper and 12-15 years for tin-plated copper in humid or mildly corrosive environments.
Please provide your required inner conductor diameter, single wire diameter (0.19mm, 0.25mm, or 0.30mm), and desired cross-sectional area before ordering.