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電纜橋架和母線槽的安裝有什么要求?

電纜橋架安裝時(shí)的支托,是通過(guò)立柱和托臂來(lái)完成的。鋁合金電纜橋架由鋁合金揉捏成型,規(guī)范精度高、強(qiáng)度好、外形美麗、重量輕、承載才調(diào)大。
The support for cable bridge installation is accomplished through columns and brackets. Aluminum alloy cable tray is kneaded by aluminum alloy. It has high specification accuracy, good strength, beautiful appearance, light weight and large load capacity.
(1)金屬橋架和線槽及其支架全長(zhǎng)不少于2處與接地(PE)或接零(PEN)干線相連接。
(1) metal bridge and cable trunnion and its support are not less than 2 full length, connected to earth (PE) or to zero (PEN) trunk.
(2)非鍍鋅橋架間連接板的兩端及非鍍鋅線槽間連接板兩端要跨接銅芯接地線,其小截面積不小于4mm2.
(2) the two ends of the connecting plate between the non galvanized bridge and the connection plate of the non galvanized wire slot shall be connected with the copper core grounding wire, and the minimum sectional area is not less than 4mm2.

(3)鍍鋅橋架間連接板及線槽間連接板間的兩端不跨接接地線,但連接板兩端不少于2個(gè)有防松螺帽或防松墊圈的連接固定螺栓。
(3) the two ends of the connecting plate between the galvanized bridge and the connecting plate between the wire grooves are not connected to the ground wire, but the two ends of the connecting plate are not less than 2 fixed bolts with a loose screw cap or a looser washer.
(4)橋架應(yīng)敷設(shè)在易燃易爆氣體管道和熱力管道的下方,與管道的小凈距,符合表6—11規(guī)定。
(4) the bridge shall be laid under the inflammable and explosive gas pipeline and the thermal pipeline, and the minimum net distance between the bridge and the pipeline shall comply with the regulations of table 6 to 11.
(5)敷設(shè)在豎井內(nèi)和穿越不同防火區(qū)的橋架,按設(shè)計(jì)要求位置,有防火隔堵措施。
(5) laying a bridge in the shaft and crossing different fire zones. Fire prevention and blocking measures shall be taken according to the design requirements.
(6)橋架與支架間螺栓、橋架連接板螺栓、固定牢固,螺母位于橋架外側(cè)。
(6) the bolts between the bridge frame and the bracket, the bolts of the bridge connecting plate, and the bolts are firmly fixed, and the nuts are positioned outside the bridge frame.
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