高铁接触网接触线正线导线高度为正常导高两线路中心线间水平距离（)处，非支抬高20mm

A.500mm

B.1000mm

C.1320mm

D.1500mm

A.±10mm

B.±20mm

C.±30mm

D.±50mm

A.1mm

B.10mm

C.20mm

D.30mm

A.0.01mm

B.0.1mm

C.1mm

D.10mm

A.4000mm

B.5000mm

C.6000mm

D.7000mm

A.两节

B.两组

C.一组

D.1400mm

A.500mm

B.1000mm

C.1500mm

D.2000mm

A.300-400正线公里

B.400-500正线公里

C.400-600正线公里

D.300-500正线公里

A.7500mm

B.3100mm

C.杆高加3100mm

D.3000mm

A.1600mm

B.1400mm

C.1200mm

D.1000mm