SIEMENS
SINAMICS G180
Configuring instructions
Cable cross-sections and connections
5/15
Siemens D 18.1 · 2014
5
■
概述
（继续）
根据IEC 60364-5-52在40°C时的电流承载能力
With higher amperages, cables must be connected in parallel.
Note:
AWG或MCM的北美市场的建议必须从适当的NEC中获取（国家电气
Code) and/or CEC (Canadian Electrical Code) standards.
Grounding and PE conductor cross-section
PE导体必须dimensioned to meet the following
要求：
•
In the case of a ground fault, no impermissibly high contact
电压导体上的电压降低
可能发生由接地故障电流（<50 V AC或）
< 120 V DC, IEC 61800-5-1, IEC 60364, IEC 60543).
•
The PE conductor should not be excessively loaded by any
ground fault current it carries.
•
如果可以通过PE的连续电流流动
发生故障时的导体，PE导体交叉
section must be dimensioned for this continuous current.
•
The PE conductor cross-section should be selected accord-
ing to IEC 60204-1, IEC 60439-1, IEC 60364.
Note:
The recommendations for the North American market in AWG
或MCM必须从适当的NEC中获取（国家）
电气代码）和/或CEC（加拿大电气代码）
标准。
•
Switchgear and motors are usually grounded separately via
单独的本地地面连接。当这个接地时
arrangement is used, the current caused by a ground fault
流过平行接地连接并分开。
Despite the use of the relatively small PE conductor cross-
在上表中指定的部分，没有不允许的
Tact电压可以通过该接地系统开发。基于
on experience with different grounding configurations, how-
ever, we recommend that the ground wire from the motor
应该直接返回转换器。对于EMC.
原因和防止轴承电流，对称3线，
three-phase cables should be used where possible instead of
4-wire cables, especially on drives in the higher power range.
The protective or PE conductor must be routed separately
使用3线电缆或必须布置Symmetri-
在电机电缆中。PE导体的对称性是
achieved using a conductor surrounding all phase conductors
或者使用具有三个对称布置的电缆
相导体和三个接地导体。
•
Through their high-speed controllers, the converters limit the
将电流（电动机和接地故障电流）加载到RMS值
对应于额定电流。因此，我们推荐
使用PE导体横截面类似于
相位导体横截面接地控制
cabinet.
Cross-section 3-wire cable
3线铜缆
3线铝电缆
Single routing
Groups of cables
并行排出
1)
Single routing
Groups of cables
并行排出
1)
mm².
A
A
A
A
3 × 2.5
22.
17.
17.
13
3 × 4.0
30.
23.
23.
18.
3 × 6.0
37.
29.
29.
22.
3 × 10
52.
41.
40
31.
3 × 16
70
54.
53.
41.
3 × 25
88.
69.
68.
53.
3×35.
110
86.
84.
65.
3×50.
133.
104
102
79.
3×70.
171.
133.
131.
102
3 × 95
20.7
162.
159.
124.
3 × 120
240.
187.
184.
144.
3 × 150
278.
21.6
21.3
166.
3 × 185
31.7
247.
244.
190
3 × 240
374.
292.
287.
22.4
3 × 300
43.2
33.7
33.1
259.
Cross-section of the
阶段指挥
外部PE的最小横截面
导体
mm
2
mm
2
≤.
16.
Minimum phase conductor cross-section
16 ... 35.
16.
≥
35
Minimum half the phase conductor
横截面
1)
最多9个电缆可以水平路由直接接触一个
another on a cable rack (reduction factor 0.68).
©Siemens AG 2014