{"id":326,"date":"2026-04-02T15:36:18","date_gmt":"2026-04-02T07:36:18","guid":{"rendered":"https:\/\/gd-penglong.com\/?post_type=product&#038;p=326"},"modified":"2026-04-02T16:07:15","modified_gmt":"2026-04-02T08:07:15","slug":"high-voltage-cable","status":"publish","type":"product","link":"https:\/\/gd-penglong.com\/index.php\/product\/high-voltage-cable\/","title":{"rendered":"High Voltage Cable"},"content":{"rendered":"<p>High Voltage Cables by RRH are built to handle 35-230kV, making them essential for long-distance energy transmission across power grids, between substations, and in large-scale infrastructure projects. These cables feature advanced insulation systems\u2014often XLPE with semi-conductive layers\u2014to prevent electrical breakdown under high stress, while their stranded conductors (aluminum or copper) minimize energy loss over miles. Designed for both overhead and underground use, they include weather-resistant jackets for outdoor installations and moisture barriers for underground trenches. RRH\u2019s high voltage cables undergo rigorous testing for thermal cycling and short-circuit tolerance, ensuring reliability in extreme conditions. Ideal for connecting power plants to cities or interlinking regional grids, these cables balance efficiency and durability, playing a key role in maintaining stable electricity supply for millions.<\/p>\n<h2><strong>Product Advantage<\/strong><\/h2>\n<p>&nbsp;<\/p>\n<ul class=\" list-paddingleft-2\">\n<li>Improved Durability with top quality manufactured insulation ensuring full compliance with industry standards, designed to withstand extreme temperatures, moisture and physical harms<\/li>\n<li>RRH Cable we have the capability to manufacture grade A 99.9% pure copper precisely stranded in the insulators for the best conductivity and efficiency<\/li>\n<\/ul>\n<p>Thanks to our expert craftsmanship, we provide high-quality cables that minimize the need for frequent maintenance or replacements, significantly reducing long-term operational costs.<\/p>\n<h2><strong>Technical Parameters<\/strong><\/h2>\n<h6>Size (mm\u00b2)\u00a0 \u00a0AWG\/kcmil\u00a0 \u00a0Voltage Class\u00a0 Ampacity (A)\u00a0 \u00a0Insulation\u00a0 \u00a0Armor Type\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Shielding\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Conductor Material\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Core Type # Conductors\u00a0 Temp Rating(\u00b0C) # Strands<\/h6>\n<h6>95 mm\u00b2\u00a0 \u00a0 \u00a0 \u00a0 \u00a03\/0 AWG\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a066 kV\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 300A\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0XLPE \/ EPR\u00a0 \u00a0 \u00a0 \u00a0 Optional (SWA)\u00a0 \u00a0 Copper wire screen\u00a0 \u00a0 \u00a0Copper \/ Aluminum\u00a0 \u00a0 \u00a0 \u00a0Stranded\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 1C\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 90\/130\/250\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 19<br \/>\n120 mm\u00b2\u00a0 \u00a0 \u00a0 \u00a04\/0 AWG\u00a0 \u00a0 \u00a066\u2013110 kV\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 340A\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 XLPE \/ EPR\u00a0 \u00a0 \u00a0 \u00a0Optional (SWA)\u00a0 \u00a0 Copper wire screen\u00a0 \u00a0 \u00a0 Copper \/ Aluminum\u00a0 \u00a0 \u00a0 \u00a0Stranded\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 1C\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 90\/130\/250\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 19<br \/>\n150 mm\u00b2\u00a0 \u00a0 \u00a0 \u00a0250 kcmil\u00a0 \u00a0 66\u2013110 kV\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 385A\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0XLPE \/ EPR\u00a0 \u00a0 \u00a0 \u00a0Optional (SWA)\u00a0 \u00a0Copper wire screen\u00a0 \u00a0 \u00a0 Copper \/ Aluminum\u00a0 \u00a0 \u00a0 \u00a0 Stranded\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a01C\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 90\/130\/250\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a037<br \/>\n185 mm\u00b2\u00a0 \u00a0 \u00a0 \u00a0350 kcmil\u00a0 \u00a0 \u00a0110 kV\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 440A\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0XLPE \/ EPR\u00a0 \u00a0 \u00a0 \u00a0 Optional (SWA)\u00a0 \u00a0 Copper wire screen\u00a0 \u00a0 \u00a0Copper \/ Aluminum\u00a0 \u00a0 \u00a0 \u00a0Stranded\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a01C\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a090\/130\/250\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a037<br \/>\n240 mm\u00b2\u00a0 \u00a0 \u00a0500 kcmil\u00a0 \u00a0 \u00a0110\u2013220 kV\u00a0 \u00a0 \u00a0 \u00a0 \u00a0500A\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 XLPE \/ EPR\u00a0 \u00a0 \u00a0 \u00a0Optional (SWA)\u00a0 \u00a0 \u00a0Copper wire screen\u00a0 \u00a0 \u00a0Copper \/ Aluminum\u00a0 \u00a0 \u00a0 \u00a0Stranded\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 1C\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a090\/130\/250\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a061<br \/>\n300 mm\u00b2\u00a0 \u00a0 600 kcmil\u00a0 \u00a0 \u00a0220 kV\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0560A\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 XLPE \/ EPR\u00a0 \u00a0 \u00a0 \u00a0Optional (SWA)\u00a0 \u00a0 \u00a0 Copper wire screen\u00a0 \u00a0 Copper \/ Aluminum\u00a0 \u00a0 \u00a0 \u00a0Stranded\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 1C\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 90\/130\/250\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 61<br \/>\n400 mm\u00b2\u00a0 \u00a0 750 kcmil\u00a0 \u00a0 \u00a0 220\u2013330 kV\u00a0 \u00a0 \u00a0 \u00a0650A\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0XLPE \/ EPR\u00a0 \u00a0 \u00a0 Optional (SWA)\u00a0 \u00a0 \u00a0 \u00a0Copper wire screen\u00a0 \u00a0 Copper \/ Aluminum\u00a0 \u00a0 \u00a0 \u00a0Stranded\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 1C\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 90\/130\/250\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a061 or 91<br \/>\n500 mm\u00b2\u00a0 \u00a0 1000 kcmil\u00a0 \u00a0330\u2013400 kV\u00a0 \u00a0 \u00a0 \u00a0750A\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 XLPE \/ EPR\u00a0 \u00a0 \u00a0 \u00a0 Optional (SWA)\u00a0 \u00a0 \u00a0Copper wire screen\u00a0 \u00a0 \u00a0Copper \/ Aluminum\u00a0 \u00a0 \u00a0 \u00a0Stranded\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a01C\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a090\/130\/250\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 91<br \/>\n630 mm\u00b2\u00a0 \u00a0 1250 kcmil\u00a0 \u00a0 330\u2013400 kV\u00a0 \u00a0 \u00a0 860A\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0XLPE \/ EPR\u00a0 \u00a0 \u00a0 \u00a0 Optional (SWA)\u00a0 \u00a0 Copper wire screen\u00a0 \u00a0 \u00a0Copper \/ Aluminum\u00a0 \u00a0 \u00a0 \u00a0Stranded\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 1C\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 90\/130\/250\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 91 or more<br \/>\n800 mm\u00b2\u00a0 \u00a0 1600 kcmil\u00a0 \u00a0400 kV\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 1000A\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0XLPE \/ EPR\u00a0 \u00a0 \u00a0 \u00a0Optional (SWA)\u00a0 \u00a0 \u00a0 Copper wire screen\u00a0 \u00a0 \u00a0Copper\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Stranded\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 1C\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a090\/130\/250\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 127<br \/>\n1000 mm\u00b2\u00a0 2000 kcmil\u00a0 \u00a0400\u2013500 kV\u00a0 \u00a0 \u00a01150A\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 XLPE \/ EPR\u00a0 \u00a0 \u00a0 \u00a0 Optional (SWA)\u00a0 \u00a0 \u00a0Copper wire screen\u00a0 \u00a0 \u00a0Copper\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Stranded\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 1C\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a090\/130\/250\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0127+<\/h6>\n<h5><strong>Definitions<\/strong><br \/>\nVoltage Class Nominal system voltage the cable is rated for (66 kV, 110 kV, 220 kV, 400 kV, etc.)<\/h5>\n<p>Ampacity Maximum continuous current in ambient temperature of 20\u201330\u00b0C (varies by installation method)<\/p>\n<p>Insulation Type XLPE = Cross-Linked Polyethylene (most common for HV); EPR = Ethylene Propylene Rubber (special uses)<\/p>\n<p>Temperature Ratings 90\u00b0C (normal load), 130\u00b0C (emergency), 250\u00b0C (short circuit, max 5 sec)<\/p>\n<p>Core Type Single-core (1C) is typical for High Voltage.<\/p>\n<p>Strands High strand count improves flexibility and mechanical performance.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>Product Uses<\/strong><br \/>\nTransmission Lines carry power from generating stations to regional substations<\/p>\n<p>Power Plants export high-power output to the transmission grid<\/p>\n<p>Substations connect transformers and switching equipment at high voltage<\/p>\n<p>Underground Transmission replace overhead lines in urban or protected areas<\/p>\n<p>Renewable Energy (Offshore\/Onshore) link large solar farms, wind farms, or offshore platforms to the grid<\/p>\n<p>Industrial Mega-Facilities supply steel mills, chemical plants, and oil refineries with high-demand electricity<\/p>\n<p>Cross-River and Subsea Links carry power under rivers, lakes, or between islands and mainland<\/p>\n<p><strong>Product Operate Guide<\/strong><br \/>\nApply cable base on its insulation property<\/p>\n<p>Always de-energize the system before working on cables<\/p>\n<p>Proper PPE duing operation<\/p>\n<h2><strong>Key Features<\/strong><\/h2>\n<p>Feature\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Why It Matters<br \/>\nRated for 66\u2013500 kV Voltage\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Enables safe, efficient transmission of huge amounts of electrical power across long distances.<br \/>\nXLPE or EPR Insulation\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Offers high dielectric strength, thermal resistance, and chemical resistance \u2014 essential for reliable high voltage operation.<br \/>\nCopper or Aluminum Conductors\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Copper provides maximum conductivity and durability; aluminum offers lightweight, cost-effective solutions for long runs.<br \/>\nStranded Conductor Design\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Increases cable flexibility, reducing installation stress and improving vibration resistance during operation.<br \/>\nSingle-Core Construction\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Minimizes magnetic interference (EMI) and is easier to manage in high-current applications.<br \/>\nMetallic Shield (Copper Wire\/Tape)\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Ensures proper grounding and minimizes electromagnetic fields, improving system protection and safety.<br \/>\nRobust Outer Sheath (HDPE, PVC, LSZH)\u00a0 \u00a0 \u00a0 Protects the cable against moisture, UV, chemicals, and mechanical damage during and after installation.<br \/>\nHigh Temperature Rating\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Allows cables to survive extreme fault conditions without failure, ensuring system stability.<\/p>\n<p>(90\u00b0C normal \/ 130\u00b0C overload \/ 250\u00b0C short circuit)<br \/>\nWater-Blocked Design (Optional)\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Prevents moisture ingress over decades of service life, critical for underground and underwater applications.<br \/>\nArmored Options Available\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Adds mechanical strength for direct burial, tunnels, and offshore installations.<br \/>\nLong Operational Life (30\u201340+ years)\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Reduces replacement needs, maintenance costs, and ensures long-term network reliability.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>High Voltage (HV) Cables are designed to transmit electrical energy at voltages above 35 kV, typically ranging from 35 kV up to 500 kV or more. They are essential for moving large amounts of electricity over long distances between power generation facilities (like power plants, wind farms, hydroelectric dams) and major substations.<br \/>\nThese cables are built with strong insulation layers, metallic screens, and robust jackets to withstand:<br \/>\nVery high electric stresses<br \/>\nHarsh environmental conditions<br \/>\nMechanical forces during installation and operation<\/p>\n","protected":false},"featured_media":303,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[55],"product_tag":[],"class_list":{"0":"post-326","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-products","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/gd-penglong.com\/index.php\/wp-json\/wp\/v2\/product\/326","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gd-penglong.com\/index.php\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/gd-penglong.com\/index.php\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/gd-penglong.com\/index.php\/wp-json\/wp\/v2\/comments?post=326"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/gd-penglong.com\/index.php\/wp-json\/wp\/v2\/media\/303"}],"wp:attachment":[{"href":"https:\/\/gd-penglong.com\/index.php\/wp-json\/wp\/v2\/media?parent=326"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/gd-penglong.com\/index.php\/wp-json\/wp\/v2\/product_brand?post=326"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/gd-penglong.com\/index.php\/wp-json\/wp\/v2\/product_cat?post=326"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/gd-penglong.com\/index.php\/wp-json\/wp\/v2\/product_tag?post=326"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}