{"id":329,"date":"2026-04-02T16:39:04","date_gmt":"2026-04-02T08:39:04","guid":{"rendered":"https:\/\/gd-penglong.com\/?post_type=product&p=329"},"modified":"2026-04-02T17:08:50","modified_gmt":"2026-04-02T09:08:50","slug":"ultra-high-voltage-cable","status":"publish","type":"product","link":"https:\/\/gd-penglong.com\/index.php\/product\/ultra-high-voltage-cable\/","title":{"rendered":"Ultra High Voltage Cable"},"content":{"rendered":"

Ultra High Voltage Cables from RRH are engineered for the most demanding energy transmission needs, operating at 230-800kV to support mega-grids and cross-country power networks. These cables leverage cutting-edge technology, including low-loss insulation materials and optimized conductor designs, to minimize energy dissipation over thousands of miles\u2014critical for connecting remote renewable energy sources (like wind farms or solar parks) to urban centers. The robust construction includes metal sheaths for electromagnetic shielding and armor layers to withstand extreme environmental stress, from freezing temperatures to desert heat. RRH\u2019s ultra-high voltage cables are customizable for both AC and DC systems, making them versatile for international projects. Whether powering a nation\u2019s grid or enabling cross-border energy trade, these cables set the standard for high-capacity, long-haul electricity transmission.<\/p>\n

Product Advantage<\/h2>\n

Improved Durability with top quality manufactured insulation ensuring full compliance with industry standards, designed to withstand extreme temperatures, moisture and physical harms<\/p>\n

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<\/p>\n

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

Technical Parameters<\/h2>\n

Size (mm\u00b2)\u00a0 \u00a0 AWG\/kcmil\u00a0 \u00a0 \u00a0Voltage Class\u00a0 \u00a0Ampacity (A)\u00a0 \u00a0 \u00a0 \u00a0Insulation\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Armor\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Shielding\u00a0 \u00a0 \u00a0 \u00a0 Conductor Material\u00a0 \u00a0 Core Type # Conductors Temp Rating (\u00b0C) # Strands
\n800 mm\u00b2\u00a0 \u00a0 \u00a0 \u00a0 \u00a01600 kcmil\u00a0 \u00a0 \u00a0 \u00a0500\u2013600 kV\u00a0 \u00a0 \u00a01000A\u00a0 \u00a0 \u00a0 XLPE \/ Oil-impregnated\u00a0 \u00a0 Optional (SWA\/STA)\u00a0 Copper wire screen\u00a0 \u00a0 \u00a0Copper\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Stranded\u00a0 \u00a0 \u00a0 \u00a0 1C\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a090\/130\/250\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0127
\n1000 mm\u00b2\u00a0 \u00a0 \u00a0 \u00a02000 kcmil\u00a0 \u00a0 \u00a0 \u00a0500\u2013800 kV\u00a0 \u00a0 \u00a01150A\u00a0 \u00a0 \u00a0 \u00a0XLPE \/ Oil-impregnated\u00a0 \u00a0 Optional (SWA\/STA)\u00a0 Copper wire screen\u00a0 \u00a0 \u00a0Copper\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Stranded\u00a0 \u00a0 \u00a0 \u00a0 1C\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a090\/130\/250\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0127+
\n1200 mm\u00b2\u00a0 \u00a0 \u00a0 \u00a0 2500 kcmil\u00a0 \u00a0 \u00a0 600\u2013800 kV\u00a0 \u00a0 \u00a01300A\u00a0 \u00a0 \u00a0 \u00a0XLPE \/ Oil-impregnated\u00a0 \u00a0 Optional\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Copperwire screen\u00a0 \u00a0 \u00a0 \u00a0Copper\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Stranded\u00a0 \u00a0 \u00a0 \u00a01C\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 90\/130\/250\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0127+
\n1600 mm\u00b2\u00a0 \u00a0 \u00a0 \u00a0 3200 kcmil\u00a0 \u00a0 \u00a0 800\u20131100 kV\u00a0 \u00a0 \u00a01600A\u00a0 \u00a0 \u00a0 XLPE \/ Oil-impregnated\u00a0 \u00a0Optional\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Copper wire screen\u00a0 \u00a0 \u00a0 Copper\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Stranded\u00a0 \u00a0 \u00a0 1C\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 90\/130\/250\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 127\u2013169
\n2000 mm\u00b2\u00a0 \u00a0 \u00a0 4000 kcmil\u00a0 \u00a0 \u00a0 \u00a0800\u20131100 kV\u00a0 \u00a0 \u00a01900A\u00a0 \u00a0 \u00a0XLPE \/ Oil-impregnated\u00a0 \u00a0 \u00a0Optional\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Copper wire screen\u00a0 \u00a0 \u00a0 \u00a0Copper\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Stranded\u00a0 \u00a0 \u00a0 1C\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 90\/130\/250\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 169\u201320<\/h6>\n

Key Points<\/strong>
\nVoltage Range: 500 kV to 1100 kV (AC or DC systems)<\/p>\n

Purpose: Efficiently transmit large amounts of power with minimal losses.<\/p>\n

Types:<\/p>\n

AC UHV cables (usually underground for urban areas)<\/p>\n

DC UHV cables (for ultra-long distances, submarine, or cross-country transmission)<\/p>\n

Conductor Material: Typically high-conductivity copper or aluminum.<\/p>\n

Insulation: Advanced XLPE (cross-linked polyethylene) or oil-impregnated paper insulation for extreme electrical and thermal stress.<\/p>\n

Applications: National grid backbones, renewable energy transmission, interconnection of countries, offshore wind, underground city supply.<\/p>\n

 <\/p>\n

Product Uses<\/strong>
\nLong-Distance Power Transmission carries bulk electricity from remote generation (hydropower, solar farms, wind farms) to cities.<\/p>\n

National and Intercontinental Grids connects grids across states or countries with minimal losses.<\/p>\n

Renewable Energy Projects moves clean energy (wind, hydro, solar) from faraway locations to populated centers.<\/p>\n

Urban Bulk Power Delivery, underground or underwater UHV cables bring large power supplies into crowded cities where overhead lines aren\u2019t possible.<\/p>\n

HVDC Systems (High Voltage Direct Current) essential for modern DC transmission corridors that cross mountains, seas, or deserts.<\/p>\n

Offshore Wind Farms and Islands transfers huge power outputs from offshore platforms to mainland grids.<\/p>\n

 <\/p>\n

Product Operate Guide<\/strong>
\nApply cable base on its insulation property<\/p>\n

Always de-energize the system before working on cables<\/p>\n

Proper PPE duing operation<\/p>\n

Key Features<\/strong><\/h2>\n

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 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Why It Matters
\nRated for 500 kV to 1100 kV\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 \u00a0Enables ultra-long distance and large-scale power transmission with minimal losses.
\nAdvanced XLPE or Oil-Impregnated Insulation\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Withstands extreme electrical and thermal stress, ensuring cable reliability under UHV conditions.
\nCopper or Aluminum Conductors\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Offers the best balance between conductivity (copper) and weight\/cost efficiency (aluminum).
\nStranded, High-Purity Conductors\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Improves flexibility, reduces skin effect losses at very high frequencies.
\nSingle-Core Design\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 Reduces magnetic fields, simplifies electrical behavior at ultra high voltages.
\nMetallic Shielding\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 Provides electromagnetic containment and fault protection, ensuring safe operation.
\nArmored Options Available\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 \u00a0Enhances mechanical protection, especially important for underground or submarine cables.
\nHigh Thermal Ratings\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 Maintains operational stability during overloads or faults without immediate damage.<\/p>\n

(90\u00b0C Normal, 130\u00b0C Overload, 250\u00b0C Short Circuit)
\nWater Blocking and Sealing Systems\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Extends cable life by preventing moisture ingress, critical for underground\/submarine use.
\nLow Loss Dielectric Design\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 \u00a0Minimizes energy loss during transmission, improving system efficiency and reducing operating costs.
\nDesign Life 40\u201350+ Years\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 \u00a0Provides a reliable, long-term investment for national grids and megaprojects.<\/p>\n

 <\/p>\n

Notes<\/strong>
\nTerm\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 \u00a0Meaning
\nArmor\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 SWA = Steel Wire Armor; STA = Steel Tape Armor; usually optional for underground\/submarine.
\nShielding\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 \u00a0Copper tape or copper wire screen around each conductor, critical for UHV to manage high electrical fields.
\nInsulation\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 \u00a0XLPE (modern dry type); Oil-impregnated (historical type for some UHV AC or DC systems).
\nCore Type\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 \u00a0Almost always single core (1C) for UHV to avoid phase interference.
\nTemperature Ratings\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 90\u00b0C normal operation, 130\u00b0C emergency overload, 250\u00b0C short-circuit condition.
\nStranding\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 \u00a0High-strand count to improve cable flexibility, reduce skin effect, and ease installation stress.<\/p>\n","protected":false},"excerpt":{"rendered":"

Ultra High Voltage (UHV) cables are designed to transmit very high levels of electrical energy over long distances, typically at voltages above 500 kV.<\/p>\n

They are critical for modern power systems, especially in connecting remote energy sources to major cities and industrial centers.<\/p>\n","protected":false},"featured_media":304,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[55],"product_tag":[],"class_list":{"0":"post-329","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\/329","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=329"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/gd-penglong.com\/index.php\/wp-json\/wp\/v2\/media\/304"}],"wp:attachment":[{"href":"https:\/\/gd-penglong.com\/index.php\/wp-json\/wp\/v2\/media?parent=329"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/gd-penglong.com\/index.php\/wp-json\/wp\/v2\/product_brand?post=329"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/gd-penglong.com\/index.php\/wp-json\/wp\/v2\/product_cat?post=329"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/gd-penglong.com\/index.php\/wp-json\/wp\/v2\/product_tag?post=329"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}