电缆桥架安装时的支托，是通过立柱和托臂来完成的。铝合金电缆桥架由铝合金揉捏成型，规范精度高、强度好、外形美丽、重量轻、承载才调大。
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)金属桥架和线槽及其支架全长不少于2处与接地(PE)或接零(PEN)干线相连接。
(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)非镀锌桥架间连接板的两端及非镀锌线槽间连接板两端要跨接铜芯接地线，其小截面积不小于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)镀锌桥架间连接板及线槽间连接板间的两端不跨接接地线，但连接板两端不少于2个有防松螺帽或防松垫圈的连接固定螺栓。
(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)桥架应敷设在易燃易爆气体管道和热力管道的下方，与管道的小净距，符合表6—11规定。
(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)敷设在竖井内和穿越不同防火区的桥架，按设计要求位置，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)桥架与支架间螺栓、桥架连接板螺栓、固定牢固，螺母位于桥架外侧。
(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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