NickParker
Electrical
Grounding conductor which runs along with the power cables are based on NEC 250.122.
1) If there is already a ground cable that runs along with the power cable, then why to connect the frame of the equipment to ground again?
1) What is the NEC code that is used to determine the size of the ground cable for the equipment frame grounding to the nearest grounding bar?
2) If there are many disconnect switches near to the package equipment (which houses many motors), how is the grounding of the frame of the disconnect switches to be done?
Which is the correct one in the attachment?
1) If there is already a ground cable that runs along with the power cable, then why to connect the frame of the equipment to ground again?
1) What is the NEC code that is used to determine the size of the ground cable for the equipment frame grounding to the nearest grounding bar?
2) If there are many disconnect switches near to the package equipment (which houses many motors), how is the grounding of the frame of the disconnect switches to be done?
Which is the correct one in the attachment?