1. In the design of construction projects, the layout of cable tray should be based on the rationalization of economic development, technical feasibility analysis, operational safety factor and other factors to make a comprehensive comparison, so as to clarify the plan, and also fully consider the provisions of engineering construction and installation, maintenance and repair, and cable laying.

2.濟(jì)南電纜橋架水準(zhǔn)鋪設(shè)時(shí)距路面的高寬比一般不少于2.5m,豎直鋪設(shè)時(shí)距路面1.8m下列一部分需加金屬材料后蓋板維護(hù)，但鋪設(shè)在電氣設(shè)備專用型屋子里時(shí)以外。電纜橋架水準(zhǔn)鋪設(shè)在機(jī)器設(shè)備隔層或馬道且小于2.5m，應(yīng)采用接地保護(hù)對策。

2. When laying cable tray horizontally, the height width ratio from the pavement is generally not less than 2.5m. When laying vertically, the part below 1.8m from the pavement needs to be maintained with a metal material back cover plate, except when it is laid in a special room for electrical equipment. If the cable tray is horizontally laid on the machine equipment compartment or catwalk and is less than 2.5m, grounding protection measures shall be taken.

3.電纜橋架、電線槽以及抗震支架應(yīng)用在有腐蝕自然環(huán)境中，應(yīng)選用抗腐蝕的剛度原材料生產(chǎn)制造。或采用耐腐蝕解決，耐腐蝕處理過程應(yīng)考慮工程項(xiàng)目自然環(huán)境和使用性能的規(guī)定。對耐蝕性能規(guī)定較高或規(guī)定清潔的場地，宜采用鋁合金型材電纜橋架。

3. cable tray, wire trough and seismic support shall be manufactured with corrosion-resistant rigid raw materials when they are used in corrosive natural environment. Alternatively, corrosion-resistant solutions can be used, and the corrosion-resistant treatment process should take into account the natural environment and performance requirements of the project. For the site with high corrosion resistance or clean requirements, aluminum alloy cable tray should be used.

4.電纜橋架在有防火規(guī)定的路段內(nèi)，可在電纜橋架，拖盤內(nèi)加上具備防火或阻燃特性的板，網(wǎng)等原材料組成封閉式或封閉式式構(gòu)造，并采用在電纜橋架以及抗震支架表層刷涂防火鍍層等對策。其總體防火特性應(yīng)考慮相關(guān)法律法規(guī)標(biāo)準(zhǔn)或規(guī)范的規(guī)定。在工程項(xiàng)目防火規(guī)定較高的場地.不適合選用鋁合金型材電纜橋架。

4. In the road section with fire safety regulations for cable tray, raw materials such as plates and nets with fire or flame retardant characteristics can be added in the cable tray and tray to form a closed or enclosed structure, and countermeasures such as brushing fire safety coating on the surface of cable tray and seismic support can be taken. The overall fire protection characteristics should consider the provisions of relevant laws, regulations, standards or specifications. The aluminum alloy cable tray is not suitable for the site with high fire safety regulations of the project.

5.必須屏蔽掉干擾信號的電纜線路線.或者有防護(hù)外界危害如室外光照，油，腐蝕液體、易燃性煙塵等自然環(huán)境規(guī)定時(shí).應(yīng)取用沒孔金屬托盤電纜橋架。

5. The cable route that interferes with the signal must be shielded, or when there are natural environmental regulations for safety protection against external hazards such as outdoor light, oil, corrosive liquid, flammable smoke and dust, the perforated metal tray cable tray shall be used.

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