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#78650 - 10/11/01 08:06 AM Effective Cable Separation  
WARREN1  Offline
Member
Joined: May 2001
Posts: 176
Greenville, SC, USA
Mixing of cables over 600 volts and cables under 600 volts in manholes is permitted by Art. 300-3(2)(e) if they are "effectively separated". "Effectively separated" is not defined. So far, I have not seen anything in IEEE or other publication to give definition. Some say that Art. 725-54 implies the Code Panel requires cable separation in accordance with the Exceptions.
[Linked Image]Some thoughts from this forum??


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#78651 - 10/12/01 08:14 PM Re: Effective Cable Separation  
sparky  Offline
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Joined: Oct 2000
Posts: 5,303
WARREN1,
I keep seeing that 2" rule pop up. The exceptions are certainly lengthly on this one..


#78652 - 10/22/01 11:51 PM Re: Effective Cable Separation  
Tom Baker  Offline
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Joined: Oct 2001
Posts: 30
Bremerton WA
Could you sleeve the under 600 v in a NM flex conduit?

And to effectivly separate I think they would have to be secured in place



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