{"id":28625,"date":"2026-04-26T07:19:45","date_gmt":"2026-04-26T07:19:45","guid":{"rendered":"https:\/\/doingcable.com\/?post_type=product&p=28625"},"modified":"2026-05-29T18:11:35","modified_gmt":"2026-05-29T18:11:35","slug":"xlpe-insulation-compound-mv-cable","status":"publish","type":"product","link":"https:\/\/doingcable.com\/fr\/produit\/xlpe-insulation-compound-mv-cable\/","title":{"rendered":"Compos\u00e9 isolant XLPE pour c\u00e2bles moyenne tension"},"content":{"rendered":"

Medium-voltage (MV) power cables operating up to 35 kV demand insulation materials that deliver exceptional electrical integrity, thermal stability, and long-term mechanical reliability. The Compos\u00e9 isolant XLPE<\/strong><\/a> (crosslinkable polyethylene) from RLB is a premium-grade material engineered specifically for these critical applications.<\/p>\n

Manufactured from high-purity low-density polyethylene, dicumyl peroxide (DCP) crosslinking agent, and advanced antioxidant packages through a precision closed-system process, this compound provides cable manufacturers with consistent, high-performance insulation that meets the stringent requirements of modern underground, overhead, and industrial distribution networks.<\/p>\n

\"Extruder<\/p>\n

High-purity XLPE insulation compound pellets<\/strong> \u2014 precision-engineered for MV cable extrusion and crosslinking.<\/p>\n

What is XLPE Insulation Compound?<\/h3>\n

XLPE (Cross-Linked Polyethylene) insulation compound is a thermosetting material created by chemically crosslinking polyethylene molecules. This transformation dramatically improves the polymer\u2019s thermal and mechanical behavior while preserving its outstanding dielectric properties.<\/p>\n

Unlike thermoplastic polyethylene, crosslinked XLPE maintains structural integrity at elevated temperatures, resists deformation under load, and delivers superior long-term performance in demanding electrical environments.<\/p>\n

Key Performance Properties<\/h3>\n

The following table summarizes the typical technical characteristics of RLB\u2019s high-quality peroxide XLPE insulation compound for MV cables:<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Propri\u00e9t\u00e9<\/th>\nUnit<\/th>\nTest Method<\/th>\nValeur typique<\/th>\n<\/tr>\n<\/thead>\n
Density @ 23\u00b0C<\/td>\ng\/cm\u00b3<\/td>\nASTM D792<\/td>\n0.92 \u00b1 0.01<\/td>\n<\/tr>\n
R\u00e9sistance \u00e0 la traction<\/td>\nMPa<\/td>\nIEC 60811-1-1<\/td>\n22.5<\/td>\n<\/tr>\n
Allongement \u00e0 la rupture<\/td>\n%<\/td>\nIEC 60811-1-1<\/td>\n540<\/td>\n<\/tr>\n
Impact Embrittlement @ -76\u00b0C<\/td>\nFailure pieces<\/td>\nASTM D746<\/td>\n0\/30<\/td>\n<\/tr>\n
Tensile Strength Variation (135\u00b0C, 168h)<\/td>\n%<\/td>\nIEC 60811-1-2<\/td>\n+4<\/td>\n<\/tr>\n
Elongation Variation (135\u00b0C, 168h)<\/td>\n%<\/td>\nIEC 60811-1-2<\/td>\n-4<\/td>\n<\/tr>\n
Hot Set (200\u00b0C, 0.2 MPa, 15 min)<\/td>\n%<\/td>\nIEC 60811-2-1<\/td>\n60 (under load) \/ 0 (permanent)<\/td>\n<\/tr>\n
Dielectric Dissipation Factor (20\u00b0C, 50 Hz)<\/td>\n\u2013<\/td>\nIEC 60250<\/td>\n1\u00d710\u207b\u2074<\/td>\n<\/tr>\n
Relative Dielectric Constant (20\u00b0C, 50 Hz)<\/td>\n\u2013<\/td>\nIEC 60250<\/td>\n2.25<\/td>\n<\/tr>\n
Dielectric Strength (20\u00b0C)<\/td>\nMV\/m<\/td>\nIEC 60243-1<\/td>\n40<\/td>\n<\/tr>\n
R\u00e9sistivit\u00e9 volumique (20\u00b0C)<\/td>\n\u03a9\u00b7m<\/td>\nIEC 60093<\/td>\n1\u00d710\u00b9\u2075<\/td>\n<\/tr>\n
Gel Content<\/td>\n%<\/td>\nASTM D2765<\/td>\n86<\/td>\n<\/tr>\n
Impurity Content<\/td>\n\u2013<\/td>\n\u2013<\/td>\nMeets strict C1\/C2 criteria<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

These values demonstrate the compound\u2019s balanced profile of mechanical robustness, excellent electrical performance, and high crosslinking efficiency \u2014 essential for reliable MV cable operation.<\/p>\n

Why XLPE Insulation Excels in Medium Voltage Cables<\/h3>\n
    \n
  • Superior Electrical Performance<\/strong> \u2014 Extremely low dielectric dissipation factor and high volume resistivity minimize power losses and ensure long-term insulation integrity under electrical stress.<\/li>\n
  • Excellent Thermal & Mechanical Stability<\/strong> \u2014 Rated for continuous conductor operation at 90\u00b0C with strong hot-set performance. The high gel content (86%) delivers robust resistance to thermal deformation and long-term aging.<\/li>\n
  • High Purity & Cleanliness<\/strong> \u2014 Produced using Loss-in-Weight feeding technology in a fully closed system, ensuring minimal contamination and consistent quality \u2014 critical for reducing electrical treeing risks in MV cables.<\/li>\n
  • Proven Long-Term Reliability<\/strong> \u2014 Modern XLPE compounds offer excellent resistance to water treeing, thermal aging, and mechanical stress, supporting service lives of 30+ years in properly designed cables.<\/li>\n
  • Versatile Processing<\/strong> \u2014 Optimized for conventional single-screw and three-layer co-extrusion lines used in MV cable manufacturing.<\/li>\n<\/ul>\n

    \"Medium<\/p>\n

    Typical MV power cable construction<\/strong> highlighting the critical XLPE insulation layer between semi-conductive screens.<\/p>\n

    Conditions de traitement recommand\u00e9es<\/h3>\n

    The compound is designed for standard peroxide crosslinking (CV) lines. Suggested temperature profile for single-screw extruders (L\/D 20:1\u201330:1):<\/p>\n

      \n
    • Feeding Section: 90\u2013100\u00b0C<\/li>\n
    • Compression Section: 100\u2013110\u00b0C<\/li>\n
    • Homogenization Section: 105\u2013115\u00b0C<\/li>\n
    • Die\/Mold Section: 110\u2013120\u00b0C<\/li>\n<\/ul>\n

      Parameters should be fine-tuned according to line speed, screw design, and specific cable construction. Proper temperature control ensures optimal crosslinking and surface quality.<\/p>\n

      Packaging & Storage<\/h3>\n
        \n
      • Conditionnement<\/strong>: 500 kg per package in corrugated cartons with tray base and inner sealed plastic film bag for maximum protection against moisture and contamination.<\/li>\n
      • Storage<\/strong>: Store at room temperature in a clean, dry, well-ventilated area. For optimal performance, use within six months of manufacture.<\/li>\n<\/ul>\n

        \"Cable<\/p>\n

        Why Cable Manufacturers Choose RLB XLPE Insulation Compound<\/h3>\n

        RLB\u2019s XLPE compound is engineered for consistency, cleanliness, and high crosslinking efficiency \u2014 key factors that directly impact cable quality, production yield, and long-term field performance. When combined with RLB\u2019s complete cable manufacturing ecosystem (including high-speed extrusion lines, stranding equipment, and other compounds), manufacturers gain a reliable, integrated solution that supports both quality and productivity goals.<\/p>\n

        Demande d'informations<\/strong> to request detailed technical data sheets, processing guidelines, or customized XLPE compound formulations for your specific MV cable designs. Our team provides professional technical support and reliable long-term partnership for cable material solutions.<\/p>\n

        Foire aux questions<\/h3>\n

        What is the typical gel content for high-quality MV XLPE compound?<\/strong><\/p>\n

        A gel content of approximately 80\u201386% is generally considered optimal for balancing mechanical strength, thermal stability, and electrical performance in medium-voltage applications.<\/p>\n

        Why is hot-set testing important?<\/strong><\/p>\n

        The hot-set test (IEC 60811-2-1) verifies the degree of crosslinking. Low permanent deformation after load removal confirms that the material has achieved sufficient crosslinking for reliable high-temperature performance.<\/p>\n

        Can this compound be used for both single-core and three-core MV cables?<\/strong><\/p>\n

        Yes. It is suitable for both single-core and multi-core MV cables up to 35 kV used in underground, overhead, and industrial applications.<\/p>\n

        What standards does this XLPE compound comply with?<\/strong><\/p>\n

        The compound is formulated to meet the requirements of major international cable standards, including relevant IEC and ASTM specifications for MV power cable insulation.<\/p>","protected":false},"excerpt":{"rendered":"

        Le compos\u00e9 isolant XLPE (poly\u00e9thyl\u00e8ne r\u00e9ticulable) est un mat\u00e9riau isolant haut de gamme et performant, sp\u00e9cialement con\u00e7u pour les c\u00e2bles d'\u00e9nergie moyenne tension (MT) jusqu'\u00e0 35 kV. Fabriqu\u00e9 \u00e0 partir de r\u00e9sine de poly\u00e9thyl\u00e8ne de haute puret\u00e9, d'un agent de r\u00e9ticulation au peroxyde de dicumyle et d'additifs antioxydants de pointe gr\u00e2ce \u00e0 un proc\u00e9d\u00e9 de granulation plastifiante en syst\u00e8me ferm\u00e9 de pr\u00e9cision, ce compos\u00e9 offre des propri\u00e9t\u00e9s \u00e9lectriques, thermiques et m\u00e9caniques exceptionnelles, essentielles \u00e0 la fiabilit\u00e9 et \u00e0 la durabilit\u00e9 des c\u00e2bles.<\/p>","protected":false},"featured_media":28667,"comment_status":"open","ping_status":"closed","template":"","meta":{"_joinchat":[]},"product_brand":[],"product_cat":[21,91,95],"product_tag":[133,1113,134,1112,1114,132],"class_list":{"0":"post-28625","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-all-product","7":"product_cat-cable-material","8":"product_cat-insulation-and-sheath","9":"product_tag-crosslinkable-polyethylene","10":"product_tag-medium-voltage-cable-compound","11":"product_tag-mv-cable-insulation","12":"product_tag-peroxide-xlpe","13":"product_tag-xlpe-for-35kv-cables","14":"product_tag-xlpe-insulation-compound","16":"first","17":"instock","18":"shipping-taxable","19":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/doingcable.com\/fr\/wp-json\/wp\/v2\/product\/28625","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=28625"}],"version-history":[{"count":6,"href":"https:\/\/doingcable.com\/fr\/wp-json\/wp\/v2\/product\/28625\/revisions"}],"predecessor-version":[{"id":30258,"href":"https:\/\/doingcable.com\/fr\/wp-json\/wp\/v2\/product\/28625\/revisions\/30258"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/doingcable.com\/fr\/wp-json\/wp\/v2\/media\/28667"}],"wp:attachment":[{"href":"https:\/\/doingcable.com\/fr\/wp-json\/wp\/v2\/media?parent=28625"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/doingcable.com\/fr\/wp-json\/wp\/v2\/product_brand?post=28625"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/doingcable.com\/fr\/wp-json\/wp\/v2\/product_cat?post=28625"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/doingcable.com\/fr\/wp-json\/wp\/v2\/product_tag?post=28625"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}