Komprehensibong Solusyon sa High-Performance Fire-Resistant ug Flame-Retardant High-Voltage Cable

1. Technical Background and Demand Analysis​
   Ang mga kable sa mataas na voltaje (na karaniwang tumutukoy sa mga kable na nagpapadala ng 1kV-1000kV electrical power) ay ang pangunahing arteries ng mga sistema ng kuryente at malawakang ginagamit sa mga mahalagang scenario tulad ng urban power grids, power stations, industrial and mining enterprises, at cross-water power transmission. Ang mga tradisyonal na kable sa mataas na voltaje ay may ilang mga kakulangan sa mahabang paggamit:

• ​Hindi sapat na shielding performance: Madaling maapektuhan ng panlabas na electromagnetic interference, at ang mga electromagnetic fields na ginagawa nito maaaring magresulta sa high-voltage hazards at electrostatic accumulation, na nagpapahiwatig ng mga panganib sa kaligtasan.
• ​Kakulangan sa fire resistance at flame retardancy: Ang mga insulation materials ay may mahinang resistensya sa mataas na temperatura, kaya madaling maging ignition sources kapag mayroong problema at mabilis na nagpapalaganap ng apoy, na nagpapalawak ng saklaw ng aksidente.
• ​Limited comprehensive protection: Hindi sapat na disenyo sa waterproofing, corrosion resistance, wear resistance, at shock absorption/noise reduction, kaya hindi ito angkop para sa komplikado at mahihirap na operating environments, na nakakaapekto sa buhay ng serbisyo at operational stability.

Upang tugunan ang mga pangkaraniwang hamon ng industriya, ipinakilala ng aming kompanya ang isang bagong high-performance high-voltage cable solution na may multiple protective functions.

​II. Core of the Solution: Multi-Layer Composite Protective Structure Design​
Ang core ng solusyon na ito ay nasa rebolusyunaryong pag-optimize ng tradisyonal na structure ng kable, na gumagamit ng integrated architecture ng "core transmission-internal stability-multi-layer protection." Ang mga layer ng kable, mula sa loob hanggang sa labas, ay: high-voltage cable silicone body → shielding layer → fire-resistant layer → waterproof membrane layer → polyethylene protective layer. Bawat layer ay binigyan ng tiyak na high-performance functions.

​​(一) Internal Core and Stable Structure​

1. ​Copper core conductor: Bilang ang core para sa power transmission, ito ay sheathed ng high-temperature-resistant rubber layer na gawa sa inorganic nanocomposite materials, na fundamental na nagpapataas ng heat resistance ng conductor at mabisang nagpaprevent ng self-ignition dahil sa sobrang init.
2. ​Filled armored rope: Ang composite filling gamit ang polypropylene tape, non-woven fabric, PP rope, at hemp rope ay malaki ang naidudulot sa pagpapataas ng stability at compactness ng internal structure ng kable, na nagpapataas ng crush resistance at corrosion resistance, at nagpapahaba ng overall service life.

​​(二) External Multi-Functional Protective Layers​

1. ​Shielding layer (four-layer structure)​:
• Inner/outer anti-static insulation skin: Nagtatagpo ng basic insulation barrier, na mabisang nagpreven ng electrostatic generation.
• Shielding braided mesh layer: Nagbibigay ng excellent electromagnetic shielding, na nagsasanggalang laban sa external interference.
• Metal shielding magnetic ring (Mn-Zn ferrite): Isang key innovation. Ipinapakita nito iba't ibang impedance characteristics para sa high-frequency noise sa iba't ibang frequencies, na mabisang nagpapareduce ng high-frequency interference, thorough na nagpapahindî ng high-voltage hazards at electrostatic ignition. Ang shielding performance nito ay lubhang mas mahusay kaysa sa ordinary cables.
2. ​Fire-resistant layer (three-layer structure)​:
• Fiberglass fire-resistant cloth layer: Pinatreat at pinahugis gamit ang non-toxic fire-resistant glue, na nagtatagpo ng unang fire barrier.
• Flame-retardant wrapping tape layer: Nagtutrabaho nang synergistically kasama ang fire-resistant cloth upang mapataas ang flame retardancy.
• Aluminum foil layer: Ang pinakalabas na fire-resistant layer, na malaking nagpapataas ng high-temperature resistance, nagpapataas ng flame retardancy, at nagbibigay ng additional functions tulad ng thermal insulation at noise reduction.
3. ​Waterproof membrane layer:
• Embedded with water-absorbing and sound-insulating cotton made from fiberglass material, it quickly absorbs infiltrating moisture to ensure internal dryness. Simultaneously, this layer effectively absorbs vibration noise generated during cable operation.
4. ​Polyethylene protective layer (double reinforcement)​:
• Internal: Filled with distributed nylon threads, greatly enhancing the cable's overall toughness and tensile strength.
• External: Sheathed with wear-resistant rubber casing, enabling the cable to withstand complex physical friction and mechanical stress, ensuring long-term durability.

​III. Working Principle and Core Advantages​
​​(一) Working Principle​
This solution achieves comprehensive protection through the synergistic effects of each layer: the copper core conductor efficiently transmits electrical power; the shielding layer filters and suppresses electromagnetic interference through its multi-layer structure, ensuring signal purity and operational safety; the fire-resistant layer forms a continuous barrier in high-temperature or open-flame environments, effectively delaying or even preventing fire spread; the waterproof membrane layer actively absorbs moisture and reduces operational noise; the polyethylene protective layer physically ensures the cable's structural robustness, resisting external damage.

​​(二) Summary of Core Advantages​

1. ​Ultimate shielding performance for safety: The four-layer shielding structure, particularly the innovative inclusion of a ferrite magnetic ring, provides 360° comprehensive electromagnetic shielding, significantly reducing high-voltage hazards and electrostatic ignition risks, leading the industry in safety.
2. ​Exceptional fire resistance and flame retardancy: The triple fire-resistant barrier delivers excellent high-temperature resistance and flame retardancy, effectively controlling fault scope and ensuring power system stability and safety under extreme conditions.
3. ​Comprehensive protective efficacy: Integrates waterproofing, abrasion resistance, thermal insulation, noise reduction, and corrosion resistance. With a stable structure and high toughness, it adapts to various complex and harsh environments such as tunnels, underground mines, coastal areas, and cross-river projects, significantly extending service life.
4. ​Stable long-term operational performance: Internal armored filling and external reinforced protection ensure mechanical strength and dimensional stability, reducing failures caused by deformation and wear, and greatly enhancing operational reliability.

​IV. Application Scenarios​
This solution is particularly suitable for scenarios with stringent requirements for safety, stability, and service life:

• Urban underground utility tunnels and smart grids
• Outgoing lines of large power stations (thermal, hydro, and renewable energy)
• Power supply for industrial plants in high-risk industries such as chemical, mining, and metallurgy
• Submarine power transmission projects across rivers and seas
• Power distribution systems for critical facilities such as data centers, hospitals, and airports