材質決定基礎壽命?

Material determines the basic lifespan

山東常見電纜橋架材質有熱鍍鋅鋼、不銹鋼、玻璃鋼及鋁合金。熱鍍鋅鋼在一般室內環境，若無外力破壞，壽命可達 20 - 30 年，但沿海地區因高濕度和鹽分，壽命縮 15 - 20 年。不銹鋼中，304 型在一般環境可使用超 30 年，輕微腐蝕環境能正常用 25 年；316L 型因含鉬抗氯離子腐蝕，在強腐蝕化工車間，壽命可達 35 年以上。玻璃鋼橋架質量輕、耐水和腐蝕，適合潮濕及有腐蝕風險場所，正常設計壽命 20 年，不過長期戶外紫外線照射會致樹脂基體老化，壽命減 15 年。鋁合金橋架在普通室內壽命 25 - 30 年，沿海高鹽霧地區降 20 - 25 年。

Common cable tray materials in Shandong include hot-dip galvanized steel, stainless steel, fiberglass reinforced plastic, and aluminum alloy. Hot dip galvanized steel can have a lifespan of 20-30 years in general indoor environments without external damage, but in coastal areas, its lifespan is reduced to 15-20 years due to high humidity and salt content. In stainless steel, Type 304 can be used for over 30 years in general environments, and can be used normally for 25 years in slightly corrosive environments; The 316L type, due to its molybdenum content and resistance to chloride ion corrosion, can have a lifespan of over 35 years in highly corrosive chemical workshops. Fiberglass cable trays are lightweight, water-resistant, and corrosion-resistant, suitable for humid and corrosive environments. The normal design life is 20 years, but long-term outdoor UV exposure can cause aging of the resin matrix, reducing the life to 15 years. Aluminum alloy cable trays have a lifespan of 25-30 years in ordinary indoor environments, but it can be reduced to 20-25 years in coastal areas with high salt spray.

安裝質量影響耐用性?

Installation quality affects durability

規范安裝是保障橋架壽命的關鍵。安裝不牢固，如螺栓未擰緊、焊接點不牢，在震動或外力作用下，橋架易松動、位移，導致電纜磨損，加速結構變形。跨距不合理，橋架因承受電纜重量產生較大撓度，金屬材質易疲勞裂縫，非金屬材質可能斷裂。接地不當，雷雨或電氣故障時，橋架易遭雷擊或產生高感應電壓，加速金屬部件生銹，在多雷暴的山東地區尤其要重視。?

Standardized installation is the key to ensuring the service life of cable trays. The installation is not firm, such as bolts not tightened or welding points not firmly secured. Under vibration or external force, the bridge frame is prone to loosening and displacement, leading to cable wear and accelerating structural deformation. The span is unreasonable, and the cable tray undergoes significant deflection due to bearing the weight of the cable. Metal materials are prone to fatigue cracks, while non-metallic materials may break. Improper grounding can lead to lightning strikes or high induced voltage on bridge structures during thunderstorms or electrical faults, accelerating the rusting of metal components. This is particularly important in the thunderstorm prone Shandong region. ?

使用環境帶來挑戰?

Challenges brought by the usage environment

山東氣候多樣、工業環境復雜，影響橋架生銹、老化速度。夏季高溫多雨，加速金屬橋架生銹，雨水侵蝕破壞防護層；冬季寒冷，熱脹冷縮使防護層開裂。工業區域中，化工企業周邊的酸性或堿性氣體腐蝕金屬橋架；鋼鐵廠等場所的鐵粉、粉塵吸附在橋架表面，形成原電池加速腐蝕。沿海或地下設施內的高濕度環境，利于金屬橋架生銹，也影響玻璃鋼等材質的內部結構穩定性。?

Shandong has a diverse climate and complex industrial environment, which affects the speed of rusting and aging of bridge frames. High temperatures and heavy rainfall in summer accelerate the rusting of metal bridge frames, and rainwater erosion damages the protective layer; Winter is cold, and thermal expansion and contraction cause the protective layer to crack. In industrial areas, acidic or alkaline gases surrounding chemical enterprises corrode metal cable trays; Iron powder and dust from steel plants and other places adsorb onto the surface of the bridge, forming primary batteries that accelerate corrosion. The high humidity environment in coastal or underground facilities is conducive to rusting of metal bridge frames and also affects the internal structural stability of materials such as fiberglass. ?

維護保養延長壽命?

Maintenance and upkeep extend lifespan

定期有效的維護可延緩橋架生銹、老化。定期檢查外觀有無變形、裂縫，連接件是否松動，防護層是否脫落，戶外或惡劣環境的橋架檢查周期應縮短。定期清潔表面灰塵雜物，金屬橋架可涂防護漆，玻璃鋼橋架用溫和清潔劑清洗。發現生銹、老化或損壞，及時修復，輕微生銹可打磨噴漆，嚴重時更換部件，確保電纜運行。?

Regular and effective maintenance can delay the rusting and aging of bridge frames. Regularly inspect the appearance for deformation, cracks, loose connections, and detachment of protective layers. The inspection cycle for outdoor or harsh environments should be shortened. Regularly clean the surface of dust and debris, metal bridge frames can be coated with protective paint, and fiberglass bridge frames can be cleaned with mild cleaning agents. If rust, aging or damage is found, it should be repaired in a timely manner. Slight rust can be polished and painted, and if severe, parts should be replaced to ensure the safe operation of the cable. ?

山東電纜橋架使用壽命通常在 15 - 35 年，受材質、安裝質量、使用環境及維護保養等因素綜合影響。合理選材、規范安裝、重視維護，能確保其長期穩定運行。

The service life of cable trays in Shandong is usually 15-35 years, which is influenced by factors such as material, installation quality, usage environment, and maintenance. Reasonable material selection, standardized installation, and emphasis on maintenance can ensure its long-term stable operation.

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