1、直線段電纜橋架長(zhǎng)度超越30m必需設(shè)置補(bǔ)償安裝，電纜橋架逾越建筑物變形縫處必需設(shè)置補(bǔ)償安裝。

1. Compensation installation is necessary when the length of cable bridge in straight section exceeds 30 m. Compensation installation is necessary when the cable bridge crosses the deformation joint of the building.

2、鍍鋅電纜橋架及其支架全長(zhǎng)應(yīng)不少于2處與接地（PE）干線相銜接。

2. The full length of galvanized cable bridge and its bracket shall be no less than two joints to the main line of ground (PE).

3、立柱、吊支架和托臂應(yīng)布置合理，固定結(jié)實(shí)、平整。

3. Columns, suspension brackets and brackets should be reasonably arranged, fixed, firm and smooth.

4、電纜橋架與支架間螺栓、橋架銜接板螺栓固定緊固無(wú)遺漏，螺母位于橋架外側(cè)。

4. The bolts between the cable bridge frame and the bracket and the connecting plate bolts of the bridge frame are fixed and fastened without omission. The nuts are located on the outside of the bridge frame.

5、支架與預(yù)埋件焊接固定時(shí)，焊縫豐滿；收縮螺栓固定時(shí)，選用螺栓適配，銜接緊固，防松零件齊全。

5. When bracket and embedded parts are welded and fixed, the weld seam is plump; when shrinkage bolt is fixed, the bolt is selected to fit, the connection is tight, and the anti-loosening parts are complete.

6、電纜橋架及其支架和引入或引出的金屬電纜導(dǎo)管必需接地（PE）牢靠。

6. The cable bridge and its brackets and the metal cable conduits introduced or extracted must be firmly grounded (PE).

7、電纜橋架轉(zhuǎn)彎處的彎曲半徑，不小于橋架內(nèi)交聯(lián)聚氯乙烯絕緣電力電纜小允許彎曲半徑15D。

7. The bending radius at the bending point of the cable bridge is not less than 15D of the minimum allowable bending radius of the cross-linked PVC insulated power cable in the bridge frame.

8、鍍鋅電纜橋架間銜接板的兩端不跨接接地線，但銜接板兩端不少于2個(gè)有防松螺帽或防松墊圈的銜接固定螺栓。

8. The two ends of the connecting plate between galvanized cable bridges do not cross the ground wire, but at least two connecting fixed bolts with anti-loosening nuts or washers are at the two ends of the connecting plate.

9、電纜橋架與電氣用具銜接緊密，導(dǎo)線無(wú)外露現(xiàn)象。

9. Cable bridge is closely connected with electrical appliances and conductors are not exposed.

10、電纜橋架程度或垂直敷設(shè)直線局部的平直水平和垂直度允許偏向不應(yīng)超越5mm。

10. The allowable deviation of the horizontal and vertical degree of the cable bridge or the part of the vertical laying line should not exceed 5 mm.

11、電纜橋架程度裝置的支架間距為1.5～3m；垂直裝置的支架間距不大于2m。

11. The bracket spacing of cable bridge degree device is 1.5-3 m, and that of vertical device is not more than 2 m.

12、線路穿過梁、墻、樓板等處時(shí)，電纜橋架不應(yīng)被抹死在建筑物上。

12. When the line passes through beams, walls, floors, etc., the cable bridge should not be smeared on the building.

13、敷設(shè)在豎井內(nèi)和穿越不同防火區(qū)的電纜橋架，必需有防火隔堵措施，采用4mm厚鋼板做防火隔板，用防火堵料封堵緊密。

13. Cable bridges laid in shafts and crossing different fire-proof zones must have fire-proof and blocking measures. 4 mm thick steel plate is used as fire-proof baffle, and the blocking is tight with fire-proof and blocking materials.

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