Zhongyue Hongqiao Jiayuan Supporting Facilities Project

The Zhongyue Hongqiao Jiayuan Project's supporting facilities engineering is a significant municipal and residential infrastructure project undertaken by China Power Construction Corporation No. 17. As a crucial power distribution project, it serves residential communities, municipal public facilities, regional power grid access, and auxiliary engineering construction, demanding extremely high performance in high-voltage and medium-voltage transmission safety, fire resistance, environmental protection, mechanical protection, and long-term stable operation.

The project faces complex laying conditions, including urban underground integrated pipe corridors, direct burial, cable trench laying, high-altitude vertical laying, and outdoor overhead transmission. Furthermore, the project must address challenges such as humid environments, soil corrosion, external mechanical compression, and rodent infestation, while meeting stringent fire prevention and smoke-free environmental standards for densely populated residential areas.

Jinhong Cable was selected as the designated high-quality cross-linked cable supplier for this key project.

We provide professionally customized high and medium voltage cross-linked cables, fully compliant with project engineering standards and complex laying scenarios:

1. FS-WDZ-YJY23 26/35kV

   Termite-proof, rodent-proof, low-smoke, halogen-free, flame-retardant armored cross-linked cable

   • Rated voltage 26/35kV, classified as a high-voltage transmission cable.
   • Built-in special termite-proof and rodent-proof formula structure, effectively resisting damage from biological attack in underground buried environments.
   • LSZH low-smoke, halogen-free material, releases no toxic or harmful gases during fire, with low smoke concentration, suitable for residential areas and densely populated public areas.
   • YJY23 round steel wire armored structure, possessing excellent tensile strength, compressive strength, and impact resistance, suitable for long-distance direct underground burial, pipe gallery, and vertical laying with large elevation differences.
   • XLPE cross-linked insulation, long-term operating temperature up to 90℃, short-circuit high temperature resistance up to 250℃, aging resistant, service life up to 40 years.
   • Main applications: 35kV high-voltage trunk transmission, municipal power grid access, community support high-voltage distribution backbone lines.
2. NH-YJV22 26/35kV

   Fire-resistant steel-tape armored high-voltage cross-linked power cable

   • 26/35kV high-voltage rating, with excellent fire resistance, capable of maintaining normal power supply under flame conditions of 750℃–950℃.
   • Mica tape fire-resistant layer + cross-linked polyethylene composite insulation structure, maintaining stable electrical performance under extreme high temperatures and fire disasters.
   • Steel tape armor layer, with extremely strong resistance to compression, corrosion and mechanical damage, suitable for harsh underground laying environments.
   • Effectively ensures emergency power supply for fire protection systems, important load circuits and key municipal supporting facilities.
   • Main applications: High-voltage fire emergency circuits, key municipal supporting power supply, and key load power distribution for residential supporting facilities.
3. WDZ-YJY23 8.7/15kV

   Low-smoke halogen-free flame-retardant armored medium-voltage cross-linked cable

   • Rated voltage 8.7/15kV, suitable for classic medium-voltage power distribution standards in urban communities and municipal engineering projects.
   • Features low-smoke halogen-free flame-retardant properties; self-extinguishing when away from fire sources, inhibiting flame spread and reducing the risk of secondary fires.
   • Equipped with round steel wire armor design, offering good flexibility and tensile strength, suitable for cable trenches, bridges, and integrated indoor and outdoor installations.
   • Uses ring-sheath material, corrosion-resistant and weather-resistant, adaptable to long-term operation in outdoor and damp underground environments.
   • Main applications: 10kV medium-voltage power distribution networks, community substation incoming and outgoing lines, public facility power distribution, and branch lines for supporting projects.

• The mixed laying of high-voltage and medium-voltage lines requires cables to simultaneously ensure transmission stability, fire safety, and environmental performance.
• Multiple laying methods, including underground utility tunnels, direct burial, cable trenches, and shafts, present risks such as soil corrosion, mechanical compression, and rodent infestation.
• Residential supporting projects have stringent requirements for smoke suppression, non-toxicity, and flame retardant properties to ensure public safety in densely populated residential areas.
• The project is large-scale and has a tight schedule, requiring stable mass production quality and timely, concentrated delivery to align with the general contractor's schedule.
• As a key municipal infrastructure project, all cables must comply with international and national GB/T 12706 standards to meet project acceptance and long-term operation requirements.

• Complete High and Medium Voltage Product Line: We cover cross-linked cables across all voltage levels from 8.7/15kV to 26/35kV, offering various functional models including flame-retardant, fire-resistant, low-smoke halogen-free, termite-proof, and armored options, providing engineering contractors with one-stop procurement services.
• Strict Quality Control and Standard Compliance: We use high-purity oxygen-free copper conductors and imported cross-linked polyethylene (XLPE) insulation materials, with full online monitoring and high-voltage withstand testing of finished products. All products comply with international electrical standards and are suitable for municipal, residential, and infrastructure projects worldwide.
• Adaptable to Complex Engineering Laying Scenarios: Customized rodent-proof, corrosion-resistant, tensile-resistant, and armored structural designs perfectly suit harsh laying conditions such as underground direct burial, pipe corridors, cable trenches, and high-rise vertical shafts, reducing subsequent maintenance costs.
• Strong Bulk Supply and On-Time Delivery Capabilities: Leveraging a large-scale intelligent production base, we can undertake large-scale engineering orders worth tens of millions of dollars, optimizing production plans to ensure timely bulk delivery, effectively supporting the construction progress of general contractors and engineering companies.
• Comprehensive Technical Services: Providing free cable model selection, laying scheme suggestions, on-site technical guidance, and after-sales support, creating one-stop cable solutions for global engineering contractors, construction groups, and municipal engineering contractors.

Jinhong possesses extensive project experience in municipal infrastructure projects, residential community infrastructure, urban power grid upgrades, and large-scale EPC projects:

• Mature supply capability of 8.7/15kV to 26/35kV high and medium voltage cross-linked cables
• Professional customization capability of low-smoke halogen-free, flame-retardant, fire-resistant, and bio-resistant specialty cables
• Stable batch quality, standardized inspection reports, and complete engineering qualification documents
• Support for global project bidding, OEM customization, and international logistics and distribution
• Provide professional English technical documents and engineering case studies for overseas clients' reference.

If you are undertaking urban infrastructure, residential community development, municipal power grid, or other infrastructure construction projects and require reliable high and medium voltage cross-type power cables, please contact Jinhong. We offer free solution design, quotation support, and long-term stable supply cooperation.