非鍍鋅電纜橋架間連接板的保養(yǎng)
Cable bridge refers to the cable ladder, cable tray and metal groove. Cable bridges are mainly made of steel, aluminum alloy and glass steel. The surface treatment of steel bridge is divided into spray paint, spray plastic, electric galvanizing, hot galvanizing, powder electrostatic spraying and other technology.
電纜橋架的安裝主要有沿頂板安裝。沿墻水平和垂直安裝、沿豎井安裝、沿地面安裝。沿電纜溝及管道支架安裝等。安裝所用支(吊)架可選用成品或自制。支(吊)架的固定方式主要有預(yù)埋鐵件上焊接，膨脹螺栓固定等。
The installation of the cable bridge is mainly along the roof. Install along the wall horizontally and vertically, install it along the shaft, and install it along the ground. Installation along the cable trench and the pipe support. The support (hanging) frame used for installation can be used for finished products or homemade. The fixed way of the supporting frame mainly includes the welding on the preburied iron parts, the fixing of the expansion bolt and so on.
非鍍鋅電纜橋架間連接板的兩端跨接銅芯導(dǎo)線或編織銅線小允許截面應(yīng)不小于4mm2。鍍鋅電纜橋架間連接板的兩端可不作接地跨接線.但每塊連接板應(yīng)有不少于2個(gè)有防松動(dòng)螺帽或防松動(dòng)墊圈的連接固定螺栓。當(dāng)允許利用電纜橋架構(gòu)成接地干線回路時(shí).電纜橋架及其支、吊架、連接板應(yīng)能承受接地故障電流.并滿足熱效應(yīng)的要求。
The minimum allowable cross section of both ends of the connecting plate of non galvanized cable bridge and the minimum cross section of the copper wire or braided copper wire should be less than 4mm2. The ends of the connecting plates between the galvanized cable bridge can not be connected to the ground. However, there should be no less than 2 connection bolts with loose loosening nuts or loosening washers for each connecting plate. When the cable bridge is allowed to form the grounding trunk circuit, the cable tray and its support, hanger and connecting plate should be able to withstand the ground fault current and meet the requirements of thermal effect.
強(qiáng)腐蝕性環(huán)境應(yīng)采用(F)類復(fù)合環(huán)氧樹脂防腐阻燃型電纜橋架。托臂、支架也要選用同樣材料，提高橋架及附件的使用壽命，電纜橋架。在容易積灰和其它需遮蓋的環(huán)境或戶外場所宜加蓋板。
A (F) type of composite epoxy resin anticorrosion and flame retardant cable bridge should be used in strong corrosive environment. The bracket will choose the same material, improve the service life of the bridge and annex, cable tray. A cover board should be added to the easy to ash and other covered environments or outdoor places.
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