接地排截面积小于进线截面积
The sectional area of grounding bar is smaller than that of incoming line
接地排过多的打孔更减小截面积
Too many holes are punched in the grounding bar to reduce the cross-sectional area
接地并线，增加接地阻抗
Grounding and paralleling to increase grounding impedance
柜体安装底板，框架均未接地
The bottom plate of the cabinet is installed, and the frame is not grounded
未采取分层接地的措施
Layered grounding measures are not taken
通讯电缆与强电电缆平行敷设
Communication cable and strong current cable shall be laid in parallel
通讯线屏蔽层强制接地在绝缘部位
The shielding layer of communication line is forcibly grounded at the insulating part
DP总线未正确的固定与屏蔽，CU320模块的用于固定与屏蔽电缆线的附件缺失。
DP bus is not properly fixed and shielded, and accessories for fixing and shielding cable of cu320 module are missing.
编码器线，装置通讯线随意悬空，未作固定，编码器线亦未作屏蔽。
The encoder line and the device communication line are suspended at will, not fixed, and the encoder line is not shielded.
CU320控制单元及接口模块均未做接地处理。
Cu320 control unit and interface module are not grounded.
电气成套传动装置未安装屏蔽附件，安装位置偏低，且被线槽阻挡，导致冷却风道被阻挡，装置进出线不合理。
The complete set of electrical transmission device is not installed with shielding accessories. The installation position is low and blocked by trunking, resulting in blocked cooling air duct and unreasonable incoming and outgoing lines of the device.
柜体进线位置设计不合理。
The design of cabinet incoming line position is unreasonable.
主开关出线采用并线，接触电阻增大，易发热。
The outgoing line of the main switch adopts parallel line, which increases the contact resistance and is easy to heat.
母排设计结构不合理，进出线混乱，大截面线存在绕圈布线的现象。
The busbar design structure is unreasonable, the incoming and outgoing lines are disordered, and the large section line has the phenomenon of circular wiring.
母排与底板，母排与母排，各相电线之间的绝缘间距不够。
The insulation spacing between busbar and baseboard, busbar and busbar, and wires of each phase is insufficient.
母排截面积小于进线截面积，并且大量打孔，导致有效截面积进一步减小，从而导致载流量减小。
The sectional area of busbar is smaller than that of incoming line, and a large number of holes are punched, which further reduces the effective sectional area and leads to the reduction of ampacity.
母排各路出线未作限流保护，易由小线路短路导致整个线路短路引发线路起火等重大事故。
The outgoing lines of the busbar are not provided with current limiting protection, which is easy to cause the short circuit of the whole line due to the short circuit of the small line and cause major accidents such as line fire.
线缆颜色使用不规范。
The cable color is not standardized.
强电线路与信号线捆扎在一起行线
Strong current lines and signal lines shall be bundled together for running
通讯线屏蔽层悬空，仪表未有效接地
The shielding layer of communication line is suspended, and the instrument is not effectively grounded
电缆跨门安装结构不合理，电线易断
The cable cross door installation structure is unreasonable, and the wire is easy to break
柜门安装布线亦应使用线槽，并分类行线
Wiring for cabinet door installation shall also use trunking and classified wiring
温控模块加热控制线未用双绞屏蔽线
No twisted pair shielded wire is used for the heating control wire of the temperature control module
电气成套采用铝制导轨，并且无接地端子
Aluminum guide rail is used in the electrical package, and there is no grounding terminal
通讯线的接地方式不正确，接地效果不明显
The grounding mode of communication line is incorrect, and the grounding effect is not obvious
热电阻输入信号线未采用屏蔽电缆，未采用测量精度较高的3线制或4线制接法
The thermal resistance input signal line does not use shielded cable, and the 3-wire system or 4-wire system connection method with high measurement accuracy is not used
强电端子正在信号端子的下方，间距很小
The strong current terminal is under the signal terminal with a small spacing
强电线与信号线平行敷设在同一线槽内
Strong wire and signal wire are laid in the same slot in parallel
滤波器可以不用
Filter may not be used
如需使用滤波器应根据负载的实际大小选用滤波器的规格，这里20A明显大多了，不起作用
If you need to use a filter, you should select the filter specification according to the actual size of the load. Here, 20A is obviously too much and does not work
The complete electrical grounding terminal is used as a fixed terminal
双空开为何只有一相出线
Why is there only one phase outgoing line for double air switches
That's all for dry goods sharing. There are still many problems that need to be observed, recorded and prevented in practical application. You can visit our website at www.tongyuhengcheng COM and customer service personnel.
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