How to avoid resistance?

MaxHeadRoom

Joined Jul 18, 2013
30,659
I read a while ago tha there are pros and cons to using shielded cable for an AC motor's power lines.
There is a special shielded cable for VFD's, although I have always had success with metallic flex conduit, the conductors should be twisted together.
In the case of low signal conductors it used to be the practice to only ground one end of the shield.
Now it is is recommended to ground both ends but this must go hand in hand with equi-potential bonding as per the PDF from Siemens, Ch6 on the shields .
Max.
 

ScottWang

Joined Aug 23, 2012
7,501
I read a while ago tha there are pros and cons to using shielded cable for an AC motor's power lines. I remember that the recommended practice is to use metallic conduit to wire that separately from signal cables. Maybe @MaxHeadRoom could explain this further?
You are hijacking, which is not allowed at All About Circuits.
Please back to the track, otherwise please start a new thread by your own.
 

ScottWang

Joined Aug 23, 2012
7,501
My apologies, but I thought I was on the same subject when proper wiring and grounding practices were mentioned.
Someone reported and we also felt that you have had a little biased, so just give you a hint not going too far and didn't separate your post, and thanks for help the TS.
 
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