Single-Core Shielded Thin-Wall High-Voltage Cable Solution Soluciyan Kable a Votaji Gaba da Kofin Daidai na Kirki Masu Zafi
- Abstract
Wani hanyoyi na ƙarin daɗi cikin tushen da ake da su wajen kula da gida, da lafiya, da kuma yawan tsawo a cikin wurare da dama. Tsari mai ban sha'awa ita ce kablun high-voltage mai girman rike mai tsari mai ban sha'awa. Ta yi hanyoyi da double-layer XLPE protection, composite shielding structure, da kuma outer sheath design mai zama, ta tafi shirye-shirye a kan mechanical protection, insulation performance, shielding effectiveness, da kuma service life mai yau, wanda ke bayar da safe, reliable, da kuma efficient connectivity don power transmission systems.
II. Technical Background and Utility Model Purpose
- Technical Background
Kablu da wires, masu muhimmanci a kan abubuwa da ake amfani da su wajen tashin kara, conveying information, da kuma enabling electromagnetic energy conversion, suna nufin "blood vessels" da "nerves" na national economy. Ingantacinsu shine muhimmanci sosai zuwa inganta aiki a cikin duk system. Amma, kablun high-voltage da aka da su yawanci suna da matsaloli da ya fi yiwu:
• Biological and Environmental Erosion: Suna da kansu da biyayi, insects, ko moisture, acids, alkalis, da kuma abubuwan chemical da za su iya haifar da insulation failure, short circuits, ko kuma fire hazards.
• Mechanical Damage: A cikin halaito kamar installation pulling, wind, da kuma exposure to sun, outer insulation layer yana da kansu da wear and cracking, wanda ke haifar da core da kuma kompromisar da power transmission, ta haka ta ba da risk of safety.
• Inadequate Shielding: Electromagnetic shielding da ba da shi ba yana da kansu da external interference ko radiation, wanda ke haifar da quality of signal da kuma stability of transmission. - Utility Model Purpose
Wani hanyoyi na ƙarin daɗi cikin tushen da ake da su wajen kula da gida, da lafiya, da kuma yawan tsawo a cikin wurare da dama. Tsari mai ban sha'awa ita ce kablun high-voltage mai girman rike mai tsari mai ban sha'awa. Ta yi hanyoyi da double-layer XLPE protection, composite shielding structure, da kuma outer sheath design mai zama, ta tafi shirye-shirye a kan mechanical protection, insulation performance, shielding effectiveness, da kuma service life mai yau, wanda ke bayar da safe, reliable, da kuma efficient connectivity don power transmission systems.
III. Core Cable Structure and Technical Parameters
Kablun ya samu multi-layer structure da precision daga fili zuwa farko, har yadu ne da muhimmanci a kan abubuwan da ake amfani da su don taimakawa a kan overall performance.
(I) Basic Structure (Layers from Inside to Out)
|
Structural Layer |
Material / Composition |
Thickness Range (Preferred Value) |
Core Function |
|
Conductor Core |
Stranded high-purity oxygen-free copper wires |
- |
Conductive core, responsible for efficient power transmission. |
|
XLPE Inner Sheath Layer |
Cross-linked polyethylene (XLPE) |
9.9~10.3mm (10.1mm) |
Inner layer of dual protection. Provides excellent primary insulation, heat resistance, mechanical strength, and resistance to acids, alkalis, and oils. Ensures core safety even if the outer sheath is accidentally damaged. |
|
Binding Tape Layer |
High-performance flame-retardant tape |
0.3~0.4mm (0.3mm) |
Secures and tightens the internal structure to prevent loosening; enhances overall flame retardancy, reducing fire risk. |
|
Tinned Copper Braid Layer |
Braided tinned copper wires |
0.2~0.3mm (0.2mm) |
Improves cable roundness, enhances radial compression resistance, and provides basic electromagnetic shielding. |
|
Aluminum Foil Layer |
Aluminum foil (with adhesive backing) |
0.1~0.2mm (0.2mm) |
Key layer for composite shielding. Works synergistically with the tinned copper braid to significantly enhance shielding effectiveness. The adhesive layer (facing the XLPE outer sheath) ensures tight, gap-free adhesion. |
|
XLPE Outer Sheath Layer |
Cross-linked polyethylene (XLPE) |
13.9~14.5mm (14.2mm) |
Outer layer of dual protection. Serves as the first line of defense against external environments, forming a safety redundancy with the inner sheath. The outer surface provides a foundation for optimized structures. |
(II) Optional Optimized Structures (Configurable Based on Application Scenarios)
To address extreme or special environments, the following optimized structures can be added outside the XLPE outer sheath:
- Axial Ribs:
- Structure: Axially extending ribs are provided on the outer sheath surface, with an embedded grounding wire inside.
- Function: One end of the grounding wire connects to the internal tinned copper braid, and the other end is reliably grounded, forming an efficient discharge path that greatly enhances shielding and anti-interference capabilities. The rib structure also increases the cable's tensile strength and reduces direct wear on the outer sheath.
- Annular Protuberances:
- Structure: Annular protuberances are spaced on the outer sheath surface, with embedded ferrite magnetic rings inside.
- Function: The ferrite rings effectively suppress high-frequency electromagnetic interference, further optimizing the shielding spectrum. The annular protuberances also provide compression resistance and reduce wear.
- Polyester Fiber Braided Layer:
- Structure: A high-strength polyester fiber braided net is applied as the outermost layer.
- Function: Provides comprehensive environmental protection, effectively resisting UV radiation, high temperatures, humidity, low temperatures, acidic/alkaline gases, and other erosive factors. It also mitigates mechanical impact, ensuring long-term safe operation in harsh environments.
IV. Technical Advantages and Value
- Dual Protection, Safe and Reliable:
- The dual-layer XLPE insulation design forms a redundant safety system. Even if the outer sheath is severely damaged accidentally, the inner sheath remains intact, significantly reducing the risk of power outages and short circuits and ensuring power supply continuity.
- Stable Structure, High Flame Retardancy:
- The compact binding tape layer ensures the structural integrity and stability of the cable, preventing internal loosening. Its high flame-retardant properties significantly enhance the product's fire safety rating.
- Efficient Composite Shielding, Excellent Anti-Interference Capability:
- The composite shielding structure formed by the tinned copper braid and aluminum foil layer ("metal braid + full coverage") provides 360° flawless shielding, effectively isolating internal and external electromagnetic interference. The optional grounding wire and ferrite rings can address interference issues in specific frequency bands.
- Exceptional Durability, Wide Application Range:
- Through the design of ribs and protuberances on the outer sheath and the outermost polyester braided layer, the cable's resistance to wear, tearing, and weathering is qualitatively leapfrogged. Its service life is significantly extended, making it suitable for a wide range of complex and harsh environments such as industrial parks, field installation, tunnels, and underground mines, reducing overall maintenance costs.
