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#21064 - 01/27/03 09:23 AM multi grounded distribution system  
mohd azhan  Offline
Junior Member
Joined: Jan 2003
Posts: 1
johor bahru,johor, malaysia
i'm student from university technology of malaysia.i want to know more detail about multi-grounded distribution system(theory).can you all send to me note or
material about that. i hope you all can help me. thank you

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#21065 - 01/27/03 10:09 AM Re: multi grounded distribution system  
pseudonym  Offline
Joined: Dec 2002
Posts: 24
Please review the following part in the 2002 NEC:

X. Grounding of Systems and Circuits of 1 kV and Over (High Voltage)

#21066 - 01/27/03 12:46 PM Re: multi grounded distribution system  
C-H  Offline
Joined: Sep 2002
Posts: 1,497
Stockholm, Sweden
Is this Low Voltage distribution? Malaysia used to follow the British IEE wiring regs, although it now has its own wiring regs. Therefore, I suspect that you are looking for information on the TN-C-S system. (Which also happens to be the system used in North America)

There is some basic information in the technical reference area:

#21067 - 01/27/03 01:03 PM Re: multi grounded distribution system  
pseudonym  Offline
Joined: Dec 2002
Posts: 24
I've been advised that the 2005 NEC had some proposals that were all rejected in South Carolina last week at the NEC meetings and they were related to the subject of your questions.

The EE proposer had some sort of pendant around his neck showing a receptacle where the neutral was bonded to the green screw EGC terminal on the device?

Look at the NFPA NEC ROP under CMP 5 for the proposal in the later part of Article 250 identified here.

#21068 - 01/27/03 09:17 PM Re: multi grounded distribution system  
Bjarney  Offline
Joined: Apr 2002
Posts: 2,527
West-Southern Inner-Northeast ...
For utility-type 2.4-34.5kV distribution, it is discussed in IEEE Standard C62.92.4, which is outlined at

Like most codes and standards, the text is not free—you must buy or subscribe to it, or find it at an electrical engineering library.

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