{"id":28581,"date":"2026-04-26T07:12:19","date_gmt":"2026-04-26T07:12:19","guid":{"rendered":"https:\/\/doingcable.com\/?post_type=product&p=28581"},"modified":"2026-08-18T08:17:30","modified_gmt":"2026-08-18T08:17:30","slug":"copper-tape","status":"publish","type":"product","link":"https:\/\/doingcable.com\/fr\/produit\/copper-tape\/","title":{"rendered":"Ruban de cuivre pour c\u00e2ble"},"content":{"rendered":"

In medium- and high-voltage cable manufacturing, effective electromagnetic interference (EMI) shielding combined with high electrical conductivity is essential for signal stability, fault current handling, and overall system reliability. Copper Tape for Cable<\/strong> \u2014 \u00e9galement connu sous le nom de Copper Foil Tape<\/strong> ou Soft-Annealed Copper Shielding Tape<\/strong> \u2014 is a high-purity, precision-slit copper foil engineered specifically for the cable industry. Produced from 99.9%+ pure electrolytic tough pitch (ETP) copper and soft-annealed to O temper, it delivers near-100% IACS conductivity, excellent formability, and superior mechanical properties for longitudinal or helical wrapping applications.<\/p>\n

As a trusted B2B supplier of complete cable materials and technical solutions with decades of global project experience, we recognize copper tape as the premium choice for manufacturers requiring maximum shielding effectiveness, fault-current capacity, and long-term durability in power cables, XLPE-insulated cables, transformers, and busway systems.<\/p>\n

Why Copper Tape Is Specified for Cable Shielding<\/h2>\n

Copper tape delivers continuous metallic coverage when applied helically with a minimum 10\u201325 % overlap (typical 12.5\u201325 % on MV cables). This creates a Faraday-cage effect that equalises the electric field over the semi-conducting insulation screen, suppresses external electromagnetic interference (EMI), and carries short-circuit fault current to the earthing system. In XLPE-insulated cables rated 6\u201335 kV (IEC 60502-2 constructions), the copper tape screen is applied directly over the extruded insulation screen.<\/p>\n

Key performance data (annealed soft temper):<\/p>\n

    \n
  • Conductivity: \u226596\u2013100 % IACS (TU1 \u2265100 %, T2 \u226598 %)<\/li>\n
  • Volume resistivity at 20 \u00b0C: \u22640.017\u20130.0176 \u03a9\u00b7mm\u00b2\/m<\/li>\n
  • Tensile strength: 200\u2013300 MPa (soft annealed)<\/li>\n
  • Elongation: \u226525\u201335 % (ensures crack-free wrapping on high-speed lines)<\/li>\n
  • Surface: bright, clean, free of oxide that would impair conductivity or soldering<\/li>\n<\/ul>\n

    These values comply with the latest Chinese national standard GB\/T 11091-2024 (Copper strip and foil for cables, implemented November 2024) and are consistent with IEC 60502, ASTM B152 and related cable construction requirements.<\/p>\n

    Composition et proc\u00e9d\u00e9 de fabrication avanc\u00e9<\/h3>\n

    Copper Tape for Cable is manufactured from high-purity copper strip that undergoes precision cold rolling, annealing, and slitting. Key characteristics include:<\/p>\n

      \n
    • Base material<\/strong>: Electrolytic tough pitch (ETP) copper with \u226599.9% purity<\/li>\n
    • Temp\u00e9rer<\/strong>: Soft-annealed (O temper) for maximum flexibility and wrapability<\/li>\n
    • Finition de surface<\/strong>: Bright, clean, and burr-free edges for smooth high-speed processing<\/li>\n<\/ul>\n

      The tape is available in thicknesses from 0.05 mm to 0.20 mm and widths from 10 mm to 1000 mm, with optional adhesive backing or copolymer coating for enhanced bonding and moisture resistance.<\/p>\n

      \"Copper<\/p>\n

      Principaux avantages techniques et gains de performance<\/h3>\n

      Near-100% IACS Electrical Conductivity<\/strong> Copper tape provides the highest conductivity among common shielding materials, enabling excellent EMI\/RFI attenuation and low transfer impedance \u2014 critical for maintaining signal integrity in sensitive power and communication cables.<\/p>\n

      Superior Formability & High-Speed Processability<\/strong> Soft-annealed temper combined with high elongation ensures wrinkle-free longitudinal or helical wrapping on high-speed lines without cracking or spring-back, reducing production defects and scrap rates.<\/p>\n

      Excellent EMI Shielding & Fault-Current Capacity<\/strong> The high-purity copper core delivers near-100% optical coverage and high fault-current carrying capability, making it ideal for metallic shielding layers in MV\/HV cables and grounding applications in transformers and busway systems.<\/p>\n

      Mechanical Strength & Durability<\/strong><\/p>\n

        \n
      • Tensile strength: High (typically 200\u2013300 MPa in annealed condition)<\/li>\n
      • Elongation: Excellent (\u226530\u201345%)<\/li>\n<\/ul>\n

        These properties ensure the tape withstands mechanical stresses during manufacturing, installation, and service life.<\/p>\n

        Versatile & Customizable<\/strong> Available in bare, adhesive-backed, or copolymer-coated versions to suit different cable designs, with custom widths and thicknesses for precise matching to your production equipment and performance requirements.<\/p>\n

        \"Smooth<\/p>\n

        Copper Tape vs. Aluminum Tape for Cable Shielding<\/h3>\n\n\n\n\n\n\n\n\n\n\n
        Fonctionnalit\u00e9<\/th>\nCopper Tape for Cable<\/th>\nRuban d'aluminium pour c\u00e2ble<\/th>\nId\u00e9al pour<\/th>\n<\/tr>\n<\/thead>\n
        Conductivit\u00e9<\/strong><\/td>\n~100% IACS<\/td>\n~61% IACS<\/td>\nHigh-fault-current & low-impedance applications<\/td>\n<\/tr>\n
        Poids<\/strong><\/td>\nHeavier<\/td>\nSignificantly lighter<\/td>\nWeight-sensitive long-distance cables<\/td>\n<\/tr>\n
        Co\u00fbt<\/strong><\/td>\nHigher material cost<\/td>\nLower<\/td>\nBudget-optimized large-scale projects<\/td>\n<\/tr>\n
        EMI Shielding Effectiveness<\/strong><\/td>\nSuperior (lower transfer impedance)<\/td>\nExcellent for high-frequency<\/td>\nCritical power & data cables<\/td>\n<\/tr>\n
        Fault-Current Capacity<\/strong><\/td>\nExcellent<\/td>\nMod\u00e9r\u00e9<\/td>\nMV\/HV power cables<\/td>\n<\/tr>\n
        Formability & Coverage<\/strong><\/td>\nExcellent<\/td>\nExcellent<\/td>\nHigh-speed longitudinal wrapping<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

        Copper Tape vs. Alternative Shielding Methods<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n
        Fonctionnalit\u00e9<\/th>\nCopper Tape (CTS)<\/th>\nCopper Wire Braid \/ Concentric Wire Screen<\/th>\nAluminium Foil \/ Al-Mylar<\/th>\n<\/tr>\n<\/thead>\n
        Optical coverage<\/td>\nNear 100 %<\/td>\n60\u201395 %<\/td>\n100 %<\/td>\n<\/tr>\n
        High-frequency EMI<\/td>\nExcellent<\/td>\nMod\u00e9r\u00e9<\/td>\nExcellent<\/td>\n<\/tr>\n
        Low-frequency \/ magnetic<\/td>\nBien<\/td>\nExcellent<\/td>\nMod\u00e9r\u00e9<\/td>\n<\/tr>\n
        Fault-current capacity<\/td>\nModerate (thickness-limited)<\/td>\nHigh (customisable cross-section)<\/td>\nFaible<\/td>\n<\/tr>\n
        Flexibility \/ bend radius<\/td>\nGood for fixed installation<\/td>\nExcellent for flexing<\/td>\nPoor (fragile)<\/td>\n<\/tr>\n
        Weight & diameter impact<\/td>\nFaible<\/td>\nPlus haut<\/td>\nLowest<\/td>\n<\/tr>\n
        Co\u00fbt<\/td>\nMod\u00e9r\u00e9<\/td>\nPlus haut<\/td>\nLowest<\/td>\n<\/tr>\n
        Typical use<\/td>\nMV power, XLPE, fixed runs<\/td>\nHigh-fault or mobile cables<\/td>\nData \/ high-frequency only<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

        Application & Selection Guide for Engineers and Procurement<\/h3>\n

        Primary applications<\/strong><\/p>\n

          \n
        • Medium-voltage XLPE power cables (6\/10 kV to 18\/30 kV) \u2013 helical copper-tape screen over insulation screen (IEC 60502-2).<\/li>\n
        • Frequency-conversion (VFD) and special control cables requiring high EMI attenuation.<\/li>\n
        • Communication, radio-frequency and instrumentation cables where conductivity and solderability matter.<\/li>\n
        • Transformers, busbars and grounding layers where soft-annealed copper provides both conductivity and formability.<\/li>\n<\/ul>\n

          Selection logic<\/strong><\/p>\n

            \n
          1. Determine system earthing and prospective fault current. Low-to-moderate fault current \u2192 copper tape of 0.10\u20130.15 mm is usually sufficient.<\/li>\n
          2. Confirm voltage class and insulation type. MV XLPE almost always uses copper tape (or copper wire) metallic screen.<\/li>\n
          3. Specify temper (soft annealed \/ O60 preferred for high-speed wrapping) and surface condition (bright, oxide-free).<\/li>\n
          4. Verify dimensional tolerances against GB\/T 11091-2024 or project specification (thickness tolerance typically \u00b10.005\u20130.015 mm depending on grade and thickness).<\/li>\n
          5. For hybrid constructions, copper tape can be combined with a drain wire or outer braid when both coverage and mechanical robustness are required.<\/li>\n<\/ol>\n

            Installation and failure-prevention notes<\/strong><\/p>\n

              \n
            • Maintain minimum overlap (normally \u226512.5 %) and uniform tension during application to avoid gaps or wrinkling.<\/li>\n
            • Ensure the tape is in continuous electrical contact with the semi-conducting insulation screen; any oxide or contamination raises transfer impedance.<\/li>\n
            • Terminate the copper-tape screen with a 360\u00b0 connection or soldered\/bonded earth braid at joints and terminations to preserve shielding integrity.<\/li>\n
            • Avoid sharp bends or repeated flexing after installation; copper tape has lower fatigue life than braid in highly mobile applications.<\/li>\n
            • Store rolls in dry conditions; surface oxidation reduces conductivity and solderability.<\/li>\n<\/ul>\n

              \"How<\/p>\n

              Sp\u00e9cifications techniques<\/h3>\n

              For Shielding of Power Cable<\/strong><\/p>\n\n\n\n\n\n\n
              \u00c9paisseur (mm)<\/th>\nLargeur (mm)<\/th>\nR\u00e9sistance \u00e0 la traction (MPa)<\/th>\nAllongement \u00e0 la rupture (%)<\/th>\nResistivity (\u03a9\u00b7mm\u00b2\/m)<\/th>\nDuret\u00e9 (HV)<\/th>\nGrade<\/th>\n<\/tr>\n<\/thead>\n
              0.05 \u2013 0.09<\/td>\n10 \u2013 50<\/td>\n\u2265180<\/td>\n\u226512<\/td>\n\u22640.017241 (100% IACS)<\/td>\n45\u201370<\/td>\nT2<\/td>\n<\/tr>\n
              0.10 \u2013 0.20<\/td>\n10 \u2013 50<\/td>\n\u2265180<\/td>\n\u226518<\/td>\n\u22640.017593 (98% IACS)<\/td>\n45\u201370<\/td>\nT2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

              For Transformer and Busway Applications<\/h4>\n\n\n\n\n\n
              \u00c9paisseur (mm)<\/th>\nLargeur (mm)<\/th>\nR\u00e9sistance \u00e0 la traction (MPa)<\/th>\nAllongement \u00e0 la rupture (%)<\/th>\nResistivity (\u03a9\u00b7mm\u00b2\/m)<\/th>\nDuret\u00e9 (HV)<\/th>\nGrade<\/th>\n<\/tr>\n<\/thead>\n
              0.1 \u2013 4.0<\/td>\n10 \u2013 1200<\/td>\n\u2265180<\/td>\n\u226530<\/td>\n\u22640.017241<\/td>\n45\u2013120<\/td>\nT2, TU1<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n\n\n
              Param\u00e8tre<\/th>\nValeur typique<\/th>\nConditions de test \/ Norme<\/th>\n<\/tr>\n<\/thead>\n
              Conductivit\u00e9<\/td>\nUp to 100% IACS<\/td>\nHigh-purity copper<\/td>\n<\/tr>\n
              R\u00e9sistance \u00e0 la traction<\/td>\nHaut<\/td>\nSuitable for high-speed wrapping<\/td>\n<\/tr>\n
              \u00c9longation<\/td>\nExcellent<\/td>\nSoft-annealed temper<\/td>\n<\/tr>\n
              Thickness Range<\/td>\n0.05\u20130.20 mm<\/td>\nD\u00e9coupe de pr\u00e9cision<\/td>\n<\/tr>\n
              Plage de largeur<\/td>\n10\u20131000 mm<\/td>\nClean edges, no burrs<\/td>\n<\/tr>\n
              normes<\/td>\nIEC 60502, ASTM B152<\/td>\nInternational compliance<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

              (Custom thicknesses, widths, and tempers available upon request.)<\/p>\n

              Normes de fabrication et assurance qualit\u00e9<\/h3>\n

              Copper Tape for Cable complies with:<\/p>\n

                \n
              • CEI 60502<\/strong> (Power cables with extruded insulation)<\/li>\n
              • ASTM B152<\/strong> (Copper sheet, strip, plate, and rolled bar)<\/li>\n<\/ul>\n

                Every batch undergoes rigorous testing for conductivity, mechanical properties, dimensional accuracy, and surface quality to ensure consistent performance and full traceability.<\/p>\n

                Emballage et logistique<\/h3>\n

                Supplied in rolls with standard inner diameters of 76 mm, 102 mm, or 150 mm. Coils are securely packed in wooden cases or on pallets for safe global transportation and storage.<\/p>\n

                Premium Conductivity & Shielding for Demanding Cable Applications<\/h3>\n

                Copper Tape for Cable combines near-100% IACS conductivity, superior formability, and excellent EMI shielding performance to deliver a high-reliability shielding and conductive solution for modern power, XLPE, transformer, and busway systems. Its precision engineering and compliance with IEC 60502 and ASTM B152 make it the technical upgrade for manufacturers seeking maximum performance and long-term cable integrity.<\/p>\n

                For cable manufacturers and EPC contractors focused on qualit\u00e9 fiable<\/strong>, solutions techniques personnalis\u00e9es<\/strong>, et valeur du partenariat \u00e0 long terme<\/strong>, this tape ensures your cables meet the highest conductivity and shielding standards while optimizing production efficiency.<\/p>\n

                Demande d'informations<\/strong> to request detailed technical data sheets, samples, custom specifications, or competitive bulk quotations tailored to your production line and cable designs. Our expert team provides full technical consultation and one-stop material solutions that strengthen your competitive advantage in global cable markets.<\/p>","protected":false},"excerpt":{"rendered":"

                Ruban de cuivre ETP recuit \u00e0 froid de haute puret\u00e9 (\u226599,9%), con\u00e7u pour le blindage m\u00e9tallique des c\u00e2bles d'\u00e9nergie moyenne et haute tension, des c\u00e2bles \u00e0 isolation XLPE, des c\u00e2bles de commande et des c\u00e2bles de communication. Elle offre une conductivit\u00e9 IACS proche de 100%, une excellente formabilit\u00e9 pour l'enroulement h\u00e9lico\u00efdal ou longitudinal \u00e0 grande vitesse, une att\u00e9nuation sup\u00e9rieure des interf\u00e9rences \u00e9lectromagn\u00e9tiques (EMI) et radio\u00e9lectriques (RFI), ainsi qu'une capacit\u00e9 fiable de transport du courant de d\u00e9faut. Des \u00e9paisseurs et largeurs sur mesure, ainsi que des versions \u00e9tam\u00e9es ou soudables en option, sont disponibles pour garantir l'int\u00e9grit\u00e9 \u00e0 long terme des c\u00e2bles et la conformit\u00e9 aux normes CEM.<\/p>","protected":false},"featured_media":29472,"comment_status":"open","ping_status":"closed","template":"","meta":{"_joinchat":[]},"product_brand":[],"product_cat":[21,93,91],"product_tag":[256,252,251,253,254,255],"class_list":{"0":"post-28581","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-all-product","7":"product_cat-auxiliary-material-for-cable","8":"product_cat-cable-material","9":"product_tag-busway-copper-tape","10":"product_tag-copper-foil-shielding","11":"product_tag-copper-tape-for-cable","12":"product_tag-emi-shielding-tape","13":"product_tag-power-cable-copper-tape","14":"product_tag-transformer-copper-tape","16":"first","17":"instock","18":"shipping-taxable","19":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/doingcable.com\/fr\/wp-json\/wp\/v2\/product\/28581","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/doingcable.com\/fr\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/doingcable.com\/fr\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/doingcable.com\/fr\/wp-json\/wp\/v2\/comments?post=28581"}],"version-history":[{"count":8,"href":"https:\/\/doingcable.com\/fr\/wp-json\/wp\/v2\/product\/28581\/revisions"}],"predecessor-version":[{"id":31051,"href":"https:\/\/doingcable.com\/fr\/wp-json\/wp\/v2\/product\/28581\/revisions\/31051"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/doingcable.com\/fr\/wp-json\/wp\/v2\/media\/29472"}],"wp:attachment":[{"href":"https:\/\/doingcable.com\/fr\/wp-json\/wp\/v2\/media?parent=28581"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/doingcable.com\/fr\/wp-json\/wp\/v2\/product_brand?post=28581"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/doingcable.com\/fr\/wp-json\/wp\/v2\/product_cat?post=28581"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/doingcable.com\/fr\/wp-json\/wp\/v2\/product_tag?post=28581"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}