JinHong Wire And Cable Group
| Payment Terms | T/T |
| Delivery Time | 30Days |
| Model Number | YJV22 |
| Brand Name | JinHong |
| Certification | CE、ROHS |
| Place of Origin | Anhui China |
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Product Specification
| Payment Terms | T/T | Delivery Time | 30Days |
| Model Number | YJV22 | Brand Name | JinHong |
| Certification | CE、ROHS | Place of Origin | Anhui China |
| High Light | YJV22 15kV medium voltage cable ，3×95 direct burial power cable ，renewable grid interconnection cable | ||
The YJV22 8.7/15kV 3×95 is a three-core, medium-voltage power cable with steel-tape armor, designed for fixed installation in 15kV rated power distribution systems. This cable features three 95mm² compacted copper conductors and incorporates a dual-layer semi-conductive shielding structure, a thickened partial-discharge-resistant XLPE insulation layer, an inner bedding layer, double-layer overlapping galvanized steel-tape armor, and a weather-resistant PVC outer sheath. Compared to standard 6/10kV medium-voltage cables, this 8.7/15kV-rated cable withstands higher electric field stress; it undergoes rigorous factory partial-discharge testing and features a robust mechanical armor structure suitable for demanding direct-burial underground applications.
This proven 3×95 conductor configuration is widely specified by power design institutes and grid operators for medium-capacity 15kV feeder circuits, interconnecting lines for box-type substations at renewable energy sites, and medium-voltage backbone lines in industrial facilities. Its integrated steel-tape armor design eliminates the need for costly large-diameter protective conduits during direct-burial installation, striking an optimal balance between long-term insulation reliability, mechanical durability, and project lifecycle cost control; consequently, it has become a mainstream specification in global tenders and engineering designs for medium-scale medium-voltage infrastructure.
specifically designed for the 8.7/15kV medium-voltage class; features high dielectric strength and excellent resistance to electrical treeing, water treeing, and partial discharge under prolonged high electric field stress
serving to isolate the steel tape armor from the internal insulated core assembly and prevent mechanical friction and electrochemical corrosion
forms a robust mechanical barrier against soil pressure, excavation impacts, rock puncture, and rodent damage, making it suitable for direct burial
suitable for 15kV three-phase medium-voltage distribution networks
arranged in a symmetrical three-core configuration to ensure balanced three-phase power transmission
The three 95mm² phase conductors utilize a compacted stranding process to enhance roundness and density. This effectively reduces DC resistance, heat generation, and power loss during continuous, heavy-load, long-distance medium-voltage power transmission. The copper conductors exhibit negligible creep under sustained terminal compression, ensuring stable contact resistance at connections throughout a service life exceeding 30 years and eliminating the long-term overheating risks often associated with medium-voltage aluminum cables. The conductor surface is uniform and precise, ensuring a highly consistent fit when crimped with specialized 15kV cable lugs and termination accessories.
The extruded semi-conductive layer adheres tightly to the conductor surface, homogenizing the electric field distribution around the conductor. This eliminates points of localized electric field concentration and suppresses the onset of partial discharge—an essential structural component for compliant 8.7/15kV medium-voltage cables.
The insulation thickness is precisely engineered to withstand an 8.7/15 kV electric field load. The extrusion line is equipped with a real-time monitoring system for wall thickness and eccentricity, and the finished product undergoes 100% offline partial discharge testing to eliminate internal voids, impurities, and insulation defects. Specially formulated medium-voltage grade XLPE material is utilized to effectively inhibit electrical tree propagation, water tree aging, and insulation breakdown caused by long-term burial in moist, acidic, or alkaline soils, ensuring stable dielectric performance under cyclical load fluctuations and transient lightning surges.
The outer semi-conductive layer and the inner shielding layer work in tandem to ensure a uniform electric field distribution. The helically applied copper tape metallic shield conducts induced currents and fault currents, meeting medium-voltage shielding and grounding requirements, suppressing electromagnetic interference emissions, and complying with grid system grounding design standards.
Fills the interstices between cable cores to maintain a consistently round cross-sectional profile; alleviates internal compression and friction during installation (such as pulling and bending); prevents abrasion of the insulation surface; and retards moisture ingress in semi-enclosed cable trenches or direct-burial environments.
Provides a complete physical barrier between the steel tape armor and the insulated core assembly, preventing sheath damage during installation and bending; additionally, in corrosive soil environments, it inhibits electrochemical corrosion reactions between the galvanized steel tape and the internal metal and polymer components.
Utilizes a double-layer, contra-helically overlapping steel tape structure capable of withstanding high lateral soil pressure during direct-burial installation of medium-voltage backbone cables, while resisting impacts from accidental excavation, punctures by sharp rocks, and rodent damage; this structural design is the key factor enabling this 8.7/15kV 3×95 feeder cable to be directly buried without the need for additional large-diameter protective conduit.
The outer sheath provides comprehensive external protection against soil chemical corrosion, UV degradation, ozone aging, and moisture ingress; the cable is suitable for outdoor installation, cable trenches, tunnels, and various underground operating conditions, ensuring structural integrity throughout its designed service life.
U0/U: 8.7/15kV AC, 50Hz; maximum system operating voltage (Um): 17.5kV; designed specifically for 15kV three-phase medium-voltage distribution networks
Conductor configuration: 3-core × 95mm² (Class 2 compacted stranded high-purity electrolytic copper); symmetrical balanced three-core arrangement
Maximum permissible continuous operating temperature of conductor: 90°C
Maximum withstand temperature during short-circuit (duration ≤ 5 seconds): 250°C
Minimum permissible ambient temperature for installation: 0°C (standard version); low-temperature custom version supports installation in -20°C extreme cold
Rated design service life under standard installation and normal operating conditions: ≥30 years
The minimum bending radius requirement for this 3-core YJV22 8.7/15kV 3×95 cable is ≥15 times the cable's outer diameter.
Structural Characteristics Note: While the armor layer can withstand radial pressure and impact loads, it cannot withstand significant axial tensile force; this model of medium-voltage feeder cable is not recommended for long-span overhead suspension or tension-based installation involving large vertical drops.
Its continuous current-carrying capacity meets the design requirements for medium-capacity 15kV feeder transmission. Utilizing low-resistance copper conductors, it effectively limits voltage drop and active power loss during installation—particularly for medium-to-long-distance substation feeder runs—thereby preventing excessive voltage deviation that could compromise the stable operation of downstream distribution equipment and transformer banks.
|
Comparison Item |
YJV22 8.7/15kV 3×95 Copper Armoured Cable |
YJLV22 8.7/15kV 3×95 Aluminium Armoured Cable |
YJV 8.7/15kV 3×95 Non-Armoured Copper Cable |
|
Conductor Material |
High-Purity Electrolytic Copper |
Ordinary Industrial Pure Aluminium |
High-Purity Electrolytic Copper |
|
Long-Term Terminal & Joint Stability |
Excellent, minimal creep deformation |
Moderate, gradual deformation risk under sustained compression |
Excellent |
|
Partial Discharge Compliance |
Pass full medium voltage grid test standard |
Pass full medium voltage grid test standard |
Pass full medium voltage grid test standard |
|
Direct Burial Applicability |
Fully suitable, built-in armour protection |
Fully suitable, built-in armour protection |
Not allowed, no mechanical shielding structure |
|
Long-Distance Transmission Loss |
Low |
Noticeably Higher |
Low |
|
Upfront Procurement Cost |
Medium |
Lowest |
Medium-Low |
|
Typical Application Position |
15kV substation outgoing critical feeder, buried grid main interconnection |
Non-critical secondary medium voltage buried branch lines |
Cable trench / tunnel indoor routing only |
Project Requirements: Replacement of aging 15kV overhead lines serving 14 residential communities with buried armored cables. The project required a large volume of cable installed via direct burial. Products had to pass local power utility standards for partial discharge testing and grid-connection acceptance, ensuring the long-term safe and stable operation of the public power grid.
Solution Implemented: Bulk supply of YJV22 8.7/15kV 3×95 three-core medium-voltage armored cables, totaling 24.3 kilometers in length.
Project Outcomes: The cables featured an integrated steel-tape armor structure, eliminating the need for additional cable conduits and reducing overall civil engineering costs by 28%. The dual-shielding design successfully passed the medium-voltage type tests and partial discharge inspections mandated by the power utility. Post-delivery operation has been stable and fault-free; consequently, the local power utility has designated this specific cable model as the standard buried feeder type for future urban overhead-to-underground conversion tenders.
Project Requirements: Installation of underground cables connecting on-site box-type substations to a centralized medium-voltage switchgear room; the routing traverses farmland, exposing cables to risks such as soil compression, rodent activity, and accidental excavation by agricultural machinery; strict requirements regarding grid-connection compliance and budget control.
Solution Implemented: Selection of YJV22 8.7/15kV 3×95 three-core cables, with a total supply length of 15.6 km; cable cross-sections were matched to the power generation capacity of individual box-type substations.
Project Outcomes: The dual-layer shielding structure effectively stabilized partial discharge levels amidst load fluctuations inherent in PV power generation; the direct-burial design streamlined on-site installation, enabling early grid connection; throughout a four-year operational monitoring period, no insulation breakdowns or joint overheating failures occurred, consistently meeting the grid company's routine inspection and performance assessment standards.
Project Requirements: Installation of new medium-voltage backbone lines—routed through perimeter cable trenches and sections of direct-buried pathways—to supply power to transformers serving high-capacity production equipment. Key requirements included low transmission losses and sufficient load headroom to accommodate future production line capacity expansions.
Solution Implemented: YJV22 8.7/15kV 3×95 three-core medium-voltage armored cables were selected, with a total supply length of 8.1 kilometers.
Project Outcomes: The low-resistance copper conductors effectively reduced energy consumption during full-load operation and minimized voltage drop over long transmission distances. The standardized specifications provided ample overload headroom for future equipment upgrades. The armored cable structure effectively prevented accidental damage during plant road modifications and utility infrastructure upgrades. The project successfully passed both internal occupational safety audits and annual third-party power system inspections.
Before selecting the YJV22 8.7/15kV 3×95 model, calculations for total load current-carrying capacity and long-distance voltage drop, as well as verifications for short-circuit thermal stability and design reviews regarding partial discharge, must be completed based on actual transmission distances and system fault level parameters. Our technical team offers complimentary, customized selection reports and technical comparison data to help avoid risks associated with insufficient current-carrying capacity or wasted investment due to over-specification.
Installation requires the use of compatible 8.7/15kV-rated cold-shrink or heat-shrink terminal accessories. Standardized operating procedures must be strictly followed during processes such as stripping the semi-conductive layer, trimming the insulation layer, positioning stress control tubes, and restoring the shielding layer, in order to eliminate electric field distortion and potential sites for partial discharge at the cable termination. The use of low-voltage terminals as substitutes is strictly prohibited.
Throughout the installation process, the bending radius must strictly be maintained at no less than 15 times the cable's outer diameter. Forced sharp bends or severe bending maneuvers are strictly prohibited to prevent internal insulation wrinkling, air gap formation, and potential partial discharge defects, which could compromise the long-term operational reliability of the medium-voltage cable. Anti-abrasion pads and chamfered protective devices must be installed at conduit openings to prevent damage to the cable's outer sheath during the pulling process.
Both the starting and terminating ends of the steel-tape armor and the copper-tape metal shielding layer must be reliably grounded independently in accordance with local electrical codes. This measure suppresses induced circulating currents and the accumulation of induced voltage within the metal layers, thereby eliminating potential electrical safety hazards associated with the long-term underground operation of medium-voltage cables.
This YJV22 8.7/15kV 3×95 cable is suitable for fixed installation via direct burial, or within cable trenches and tunnels. It is not suitable for long-distance overhead tension-suspended installation, nor for vertical installation involving significant elevation changes that would subject the cable to substantial axial tensile stress. For applications involving long-term continuous underwater submersion, the YJV32 cable (featuring steel-wire armor) should be selected as an alternative.
Cable drums must be stored on level ground within a dry, well-ventilated warehouse, avoiding prolonged exposure to rain or direct sunlight. During loading, unloading, and long-distance transport, precautions must be taken to prevent severe impacts, crushing, or tipping of the drums; such incidents could cause cracking of the outer sheath or damage to the internal insulation structure, thereby compromising the dielectric performance of the medium-voltage cable.
All products are manufactured in strict accordance with GB/T 12706 and relevant IEC international standards. We supply—free of charge—a complete set of factory qualification certificates, full type test reports, partial discharge test records, third-party inspection reports, and editable technical data sheets. This ensures full compliance with global tender requirements regarding documentation review, submission approval, and grid project acceptance for the 8.7/15kV 3×95 specification.
For the production of medium-voltage cables, we utilize certified 99.97% high-purity electrolytic copper rods and medium-voltage grade, partial-discharge-resistant XLPE materials. Key manufacturing processes—including stranding, extrusion of inner semiconducting layers and main insulation, copper tape shielding, armoring, and outer sheathing—are equipped with real-time, in-line monitoring systems for dimensions and concentricity. These measures ensure stable conductor DC resistance, uniform insulation thickness, and consistent partial discharge performance across batches, thereby minimizing the risk of rejection during incoming inspections for large-scale tender orders.
For YJV22 8.7/15kV 3×95 cables, we offer customization based on client technical drawings and specific project needs. Services include flame-retardant modifications (ZA/ZB/ZC ratings), upgrades to low-smoke zero-halogen (LSZH) outer sheaths, fixed-length cutting, and specialized packaging options such as large wooden or steel reels and export-grade packaging.
With our own manufacturing facilities, we eliminate intermediary markups. We support small-batch sample orders to meet early-stage project qualification requirements and prioritize production for large-volume orders. Ample stock of mainstream specifications (e.g., YJV22 8.7/15kV 3×95) ensures rapid delivery, meeting the tight schedules of medium-voltage engineering projects.
A team of professional cable design engineers provides free services, including load calculations, ampacity verification, lifecycle cost comparisons (copper vs. aluminum), installation route optimization, remote or on-site technical guidance, and systematic after-sales quality tracking. Backed by a formal, long-term product warranty, we eliminate technical and quality-related concerns for procurement and engineering teams.
We possess mature export packaging solutions, comprehensive capabilities for handling customs documentation, and efficient, coordinated global logistics channels. We have a proven track record of supplying projects—including substation feeders, municipal grid upgrades, and new energy power infrastructure—across Southeast Asia, Central Asia, Africa, the Middle East, and Latin America. Furthermore, we are well-versed in the inspection, acceptance, and compliance filing requirements of various overseas markets regarding these standard medium-voltage feeder specifications.
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
2006
Total Annual:
15000000000-20000000000
Employee Number:
100~200
Ecer Certification：
Verified Supplier
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