The base of engine room is steel structure, the parts of engine room is connected base with earthingcable, the earthingcable should as shorter and straighter as possible.
机舱底座为钢结构件，机舱内的零部件都通过接地线与之相连，接地线尽可能地短直。
2
The proper earthing of the shielded layer of cable in HV substation plays an important part in reducing electromagnetic interference to the microcomputer-based secondary facilities.
高压变电所内屏蔽电缆屏蔽层的正确接地，对降低外部电磁场对微机型二次设备的干扰水平，起着重要作用。
3
The earthing method of the metal sheath varies somewhat in different cable lengths, which affects greatly line parameters, especially zero sequence impedance.