Akwụkwọ Nkà Ọrụ Akwụkwọ Ezigbo Na Nsogbu Ihe Ọhụrụ

​I. Background​
Kabiliyoyin kawar da ke amfani a kan gini da alamomin lalace, suna da matsayin muhimmanci na musamman wajen inganta zafi, dalilin yadda ake yi aiki da kuma cin bayanai. Idan an yi amfani a cikin yanayin da suka dace, masu shirya da kyau, da kuma abin da ba su tabbas, za a iya haifar da kisan karfi, da kuma tsakanin da ke faruwa, ko kuma tsaro. Saboda haka, ya kamata a zabi abubuwan da ke daidai da damar da kuma a inganta tsari don inganta zimantakewa ta kabiliyoyin kawar don inganta zafi da kuma dalilin yadda ake yi aiki.

​II. Solution​
​1. Conductor Material Optimization: Balancing Conductivity and Economics​

• ​Core Strategy:​​ Yana da muhimmanci a kan amfani da copper mai damar da kuma lafiya (OFC). Tsarin da take fito ita 58 MS/m, wanda yake da damar da aluminum (kusan 35 MS/m), wanda yake iya haifar da kisan karfi (I²R losses) a lokacin da ake kawo gini, da kuma inganta zimantakewa.
• ​Scenario Segmentation:​​
• ​Medium/Short Distance & High Current Applications:​​ Daidai da amfani da copper conductors. Aikinsu da ke daidai da damar ita yana da muhimmanci (misali, power cables ≥70mm²), don inganta zimantakewa da kuma haifar da kisan karfi.
• ​Long-Distance Overhead Transmission:​​ Zaba da aluminum alloy (AA-8000 series). Don damar da ke daidai, yana da damar da copper, amma yana da tsarin da yake da damar da copper, amma yana da tsarin da yake da damar da copper, amma yana da tsarin da yake da damar da copper, amma yana da tsarin da yake da damar da copper, amma yana da tsarin da yake da damar da copper, amma yana da tsarin da yake da damar da copper, amma yana da tsarin da yake da damar da copper, amma yana da tsarin da yake da damar da copper, amma yana da tsarin da yake da damar da copper, amma yana da tsarin da yake da damar da copper, amma yana da tsarin da yake da damar da copper, amma yana da tsarin da yake da damar da copper, amma yana da tsarin da yake da damar da copper, amma yana da tsarin da yake da damar da copper, amma yana da tsarin da yake da damar da copper, amma yana da tsarin da yake da damar da copper, amma yana da tsarin da yake da damar da copper, amma yana da tsarin da yake da damar da copper, amma yana da tsarin da yake da damar da copper, amma yana da tsarin da yake da damar da copper, amma yana da tsarin da yake da damar da copper, amma yana da tsarin da yake da damar da copper, amma yana da tsarin da yake da damar da copper, amma yana da tsarin da yake da damar da copper, amma yana da tsarin da yake da damar da copper, amma yana da tsarin da yake da damar da copper, amma yana da tsarin da yake da damar da copper, amma yana da tsarin da yake da damar da copper, amma yana da tsarin da yake da damar da copper, amma yana da tsarin da yake da damar da copper, amma yana da tsarin da yake da damar da copper, amma yana da tsarin da yake......
• ​Innovative Solution:​​ Don abubuwan da ke da damar da tsari, amma kuma ke da damar da zimantakewa (misali, new energy vehicle wiring harnesses), za a iya zaba da Copper-Clad Aluminum (CCA) conductors, wanda yake da damar da copper na fadin, amma yana haifar da tsarin da 30%.

​2. Insulation Layer Reinforcement: Enhancing High-Temperature Resistance and Durability​

• ​Preferred Material:​​ Cross-Linked Polyethylene (XLPE). Abubuwan da ke da muhimmanci sun hada da:
• ​Thermal Performance:​​ Tsari mai gudanar da take fito ita 90°C (30°C da ya fi Standard PE), da tsarin da take fito ita 250°C, wanda yake inganta tsarin da ke faruwa.
• ​Dielectric Properties:​​ Volume resistivity > 10¹⁴ Ω·cm, power frequency dielectric loss < 0.001, wanda yake inganta zimantakewa a cikin yanayin da suka dace (misali, 35kV power cables).
• ​Mechanical Strength:​​ Tsarin da take fito ita yana inganta cut-through resistance da kuma Environmental Stress Crack Resistance (ESCR).
• ​Special Condition Response:​​
• ​High-Frequency Signal Transmission:​​ Amfani da physically/chemically foamed PE insulation don haifar da dielectric constant (εr≈1.4), wanda yake haifar da signal attenuation.
• ​Extreme Temperature Environments:​​ Amfani da high-temperature resistant fluoroplastic insulation (misali, ETFE), da tsarin mai gudanar da take fito ita 150°C.

​3. Structural Design Optimization: Mechanical Protection and Safety Enhancement​

• ​Layered Protection System:​​
• ​Filling Layer:​​ Filla gaps within stranded conductors with water-blocking yarns (super absorbent polyacrylate resin) or water-blocking compounds to achieve longitudinal water blocking (complying with IEC 60502). For multi-core cables, use polypropylene filler rope to ensure circular integrity.
• ​Inner Sheath:​​ Select High-Density Polyethylene (HDPE) or Thermoplastic Polyurethane (TPU) to provide radial water resistance and resistance to lateral compression (crush resistance ≥2000N/100mm).
• ​Armoring (Optional):​​
• Heavy mechanical stress environments (e.g., direct burial): Use galvanized steel tape armor (thickness ≥ 0.2mm).
• Torsional resistance required (e.g., mining cables): Use fine steel wire braided armor.
• ​Outer Sheath:​​
• ​Basic Protection:​​ Polyvinyl Chloride (PVC), cost-effective with good weather resistance (operating temperature: -20°C ~ 70°C).
• ​Enhanced Safety:​​ Low Smoke Zero Halogen (LSZH) compound, Oxygen Index ≥32, smoke density Dₛ ≤60 (complying with GB/T 19666), significantly reducing toxic gas emission (HCl <5mg/g) and visual obscuration risk during fires.
• ​Abrasion Resistance:​​ Nylon 12 sheath, Rockwell Hardness R120, suitable for dynamic bending applications like robot drag chain cables.
• ​Electromagnetic Compatibility (EMC) Design:​​ Add a copper wire screen (coverage ≥85%) for medium/high-voltage cables. For variable frequency drive (VFD) cables, utilize an aluminum-polyester composite tape + tinned copper braid dual shield to suppress high-frequency interference (≥60dB attenuation in the 30MHz~1GHz band).

​III. Scheme Value Summary​
Through scenario-specific conductor selection (copper/aluminum), a dynamic equilibrium between conductivity efficiency and cost is achieved. The XLPE insulation ensures dielectric stability in high-temperature environments. The multi-layer composite structure (Filling + Sheath + Optional Armoring) builds mechanical and fire barriers. This scheme reduces cable transmission loss by 15%~20% (Copper vs. Aluminum), extends service life beyond 30 years (XLPE vs. PVC), and reduces fire risk by 70% (LSZH vs. PVC) through the flame-retardant sheath, comprehensively meeting the core requirements of efficiency, safety, and stability.