When it comes to cable tray, many people are very familiar with it, mainly to support and protect the cable. Do you know the mistakes in the installation of fireproof cable tray?

電纜橋架在設置的時(shí)光非但提到到橋架的安上還需考慮到電纜的走向以及細節處理問(wèn)題。同時(shí)，供與電纜裝置的橋架部類(lèi)饒有，每一種橋架也富有不同的安裝特性。

In the setting of cable tray, not only the installation of cable tray is mentioned, but also the cable direction and detail treatment should be considered. At the same time, there are many types of cable tray for cable installation, and each type of cable tray has different installation characteristics.

1.螺桿吊架設置橋架時(shí)，未按標準要求設置防晃支架，鋼支架未按防腐要求施工。

1. When the screw hanger is set with bridge, the anti sway support is not set according to the standard requirements, and the steel support is not constructed according to the anti-corrosion requirements.

2.接地跨接線(xiàn)在橋架兩側任性安設或漏跨接，接地跨接線(xiàn)不設在顯眼側。接地跨接線(xiàn)的線(xiàn)鼻與爪形墊片壓接依次裝反，有的未設爪形墊片，鍍鋅橋架接地螺栓未有防松墊圈。

2. The grounding jumper is arbitrarily installed or missed on both sides of the bridge, and the grounding jumper is not set on the conspicuous side. The lug and claw gasket of grounding jumper are installed reversely in turn. Some are not equipped with claw gasket, and the grounding bolt of galvanized bridge is not equipped with lock washer.

3.吊頂內托盤(pán)、槽式橋架蓋板漏蓋。橋架連接板的固定螺栓的螺母裝在橋架內側，橋架和配電箱、柜及接出或接入的鋼管等未做接地接連。

3. The tray and trough bridge cover plate in the ceiling are missing. The nuts of the fixing bolts of the bridge connecting plate are installed on the inner side of the bridge, and the bridge is not connected to the distribution box, cabinet and the outgoing or incoming steel pipes.

4.五金電纜橋架及其支架全長(cháng)沒(méi)做可靠接地，未按正規化務(wù)求裝置伸縮節。

4. The full length of hardware cable tray and its support is not reliably grounded, and the expansion joint is not installed according to the normalization.

5.電纜橋架與托架間未固定，橋架支架未做接地跨接線(xiàn)，穿越防火分區未做防火梗阻。

5. The cable tray and bracket are not fixed, the bridge bracket is not provided with grounding jumper, and the fire prevention obstruction is not provided when crossing the fire compartment.

6.鋁合金橋架與鋼支架間未做防電化風(fēng)剝雨蝕的絕緣處理。防火電纜橋架橋架彎頭、三通等不采用與橋架配套的產(chǎn)品零配件，而是當場(chǎng)加工打造，加工成色不符合規范務(wù)求。

6. There is no insulation treatment between aluminum alloy bridge and steel support to prevent electrification, wind and rain erosion. The elbow and tee of fire-proof cable tray do not use the parts matching with the cable tray, but are processed on the spot, and the processing quality does not meet the specification.