山東電纜橋架安裝驗收

Installation and acceptance of cable tray in Shandong

電纜橋架的型號、規(guī)格和數(shù)量必須與采購訂單一致，材料和厚度要符合要求。一般橋梁寬度超過300mm時，鋼板厚度為1.5mm。橋梁寬度超過300mm時，鋼板厚度大于等于2mm，連接板厚度與橋梁相同。

The model, specification and quantity of cable tray must be consistent with the purchase order, and the material and thickness must meet the requirements. When the width of general bridge exceeds 300mm, the thickness of steel plate is 1.5mm. When the width of the bridge exceeds 300mm, the thickness of the steel plate is greater than or equal to 2mm, and the thickness of the connecting plate is the same as that of the bridge.

電纜槽組件的品種、規(guī)格、數(shù)量是否與訂單一致，包括零件的彎曲方向、槽蓋的設(shè)置和位置等是否正確。

Whether the type, specification and quantity of cable tray components are consistent with the order, including whether the bending direction of parts, the setting and position of tray cover are correct.

電纜、支架的品種、規(guī)格、數(shù)量是否與采購訂單一致，緊固附件是否正確。橋架連接板及緊固附件是否正確。所有母線槽、部件、吊架是否有機械損傷，金屬材料防腐是否均勻、完整、不流動、不透水。

Whether the variety, specification and quantity of cables and supports are consistent with the purchase order, and whether the fastening accessories are correct. Whether the bridge connecting plate and fastening accessories are correct. Whether all bus ducts, components and hangers are mechanically damaged, and whether the corrosion protection of metal materials is uniform, complete, non flowing and impermeable.

現(xiàn)場組裝進線母線槽及部件，檢查接頭是否均勻，不大于1mm。如有防火要求，應在有效期內(nèi)收到防火記錄，確保防火產(chǎn)品質(zhì)量合格可靠。

Assemble the incoming bus duct and components on site, and check whether the joint is uniform and no more than 1mm. If there are fire protection requirements, fire protection records shall be received within the validity period to ensure that the quality of fire protection products is qualified and reliable.

選擇山東電纜橋架要點

Key points of selecting Shandong cable tray

橋梁、線槽、支架用于腐蝕環(huán)境，應采用耐腐蝕的硬質(zhì)材料或進行防腐處理，并應符合工程環(huán)境和耐久性的要求。

Bridges, trunking and supports used in corrosive environment shall adopt corrosion-resistant hard materials or undergo anti-corrosion treatment, and shall meet the requirements of engineering environment and durability.

橋梁有防火要求的，可在橋架和橋架上加裝耐火或耐火板、網(wǎng)等材料，形成封閉或半封閉結(jié)構(gòu)，并采取涂刷橋面、基礎(chǔ)等措施可以帶防火漆。整體耐火性能必須符合相關(guān)規(guī)范或標準的要求。

If the bridge has fire prevention requirements, fire-resistant or fire-resistant plates, nets and other materials can be added to the bridge and bridge to form a closed or semi closed structure, and measures such as painting the bridge deck and foundation can be taken to bring fire-proof paint. The overall fire resistance performance must meet the requirements of relevant national codes or standards.

鋁合金橋架不得用于防火要求較高的場所。電纜支架的寬度和高度應滿足充電率的要求。一般情況下，電纜支架的充電率為電源線的40%~50%，控制電纜的50%~70%，保證了10%~25%的工程開發(fā)余量。

Aluminum alloy bridge shall not be used in places with high fire protection requirements. The width and height of cable support shall meet the requirements of charging rate. Generally, the charging rate of the cable support is 40%~50% of the power line and 50%~70% of the control cable, ensuring a 10%~25% engineering development margin.

選擇索梯的荷載等級時，橋架的工作均布荷載不能大于所選橋架荷載等級的額定均布荷載。如果橋梁支座距離實際跨度不超過2m，則工作均布荷載必須滿足要求。

When selecting the load grade of the cable ladder, the working uniform load of the bridge shall not be greater than the rated uniform load of the selected bridge load grade. If the distance between the bridge support and the actual span does not exceed 2m, the uniformly distributed working load must meet the requirements.

如果各種構(gòu)件和支架滿足載荷，本規(guī)范的尺寸應與橋梁、梯子和彎架系列的直線段一致。選擇橋內(nèi)彎頭或設(shè)備時，不應低于橋內(nèi)電纜的允許彎曲半徑。

If the various members and supports meet the load, the dimensions of this specification shall be consistent with the straight sections of the bridge, ladder and bent frame series. When selecting the elbow or equipment in the bridge, it shall not be lower than the allowable bending radius of the cable in the bridge.

跨度大于6m的鋼橋和跨度大于2m或D級荷載的鋁合金橋，其強度、剛度和穩(wěn)定性應根據(jù)工程條件通過計算或試驗驗證。

The strength, stiffness and stability of steel bridges with a span greater than 6m and aluminum alloy bridges with a span greater than 2m or class D load shall be verified by calculation or test according to the engineering conditions.

如果多組托盤平行鋪設(shè)在同一高度，則必須考慮相鄰電纜槽之間的維護和服務(wù)距離。

If multiple sets of trays are laid in parallel at the same height, the maintenance and service distance between adjacent cable trays must be considered.

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