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Kai Klaas
11/09/05 06:06
Modified:
  11/09/05 06:30

Read: 714 times
Germany


 
#103473 - TN-S mains structure
Responding to: Abhishek Singh's previous message
SAFETY EARTH and NEUTRAL are connected in your energy meter.

TN-S mains structure I talked about in my last post, which is mostly used in Germany has a connection of NEUTRAL and SAFETY EARTH where the mains cable enters the house. This scheme and some additional useful information can be seen here:

http://www.heizungsbetrieb.de/en/def-elec.html#nf

The correct name for SAFETY EARTH is PROTECTIVE EARTH (PE) by the way. I called it SAFETY EARTH here to focuse on the fact that violation of the according safety issues can make you die.
Where a NEUTRAL (N) and a PROTECIVE EARTH (PE) is used in a house, both must have a star point connection somewhere in the house (best where the mains cable enters the house), because otherwise a short circuit from PHASE (L1, L2 or L3) to PROTECTIVE EARTH (PE) would not make the according fuse to blow. This can only happen, if the NEUTRAL (N) is connected to PROTECTIVE EARTH (PE).

Kai

List of 31 messages in thread
TopicAuthorDate
Diff between GND and Neutral.      Suresh R      11/04/05 21:26      
   Gnd and Neutral      Steve M. Taylor      11/05/05 04:04      
      UK Only      Ian Bell      11/06/05 13:58      
         Depends      Steve M. Taylor      11/06/05 14:16      
   ground vs neutral      Andy Peters      11/06/05 17:53      
      What happens if...      Vignesh Prasad      11/07/05 07:02      
         Safety ground is not for current        Sasha Jevtic      11/07/05 08:52      
            I recall      Erik Malund      11/07/05 09:16      
            (Mal)Practices      Vignesh Prasad      11/07/05 09:57      
               death by electricity      Andy Peters      11/07/05 11:29      
                  Neutral-gnd bond      Steve M. Taylor      11/07/05 13:45      
                     bonded in the panel, separate from there      Erik Malund      11/07/05 14:35      
                        RE: bonded in the panel, separate...      Sasha Jevtic      11/07/05 15:14      
                     clause: IE rules      Vignesh Prasad      11/07/05 19:41      
                        IE ?      Steve M. Taylor      11/08/05 05:31      
                           Indian Electricity      Vignesh Prasad      11/08/05 05:54      
                              Only one ?      Steve M. Taylor      11/08/05 08:12      
                                 Supplier?      Vignesh Prasad      11/08/05 08:22      
   well 'gnd' is not necessarily groun      Erik Malund      11/07/05 07:13      
      Summing up the points      Suresh R      11/07/05 10:05      
         you basically got everything wrong      Erik Malund      11/07/05 10:47      
            to Mr. Suresh      Vignesh Prasad      11/07/05 12:00      
            Reversal...      Abhishek Singh      11/07/05 19:58      
               correction      Abhishek Singh      11/08/05 05:49      
   PHASE, NEUTRAL, SAFETY EARTH,...      Kai Klaas      11/08/05 09:13      
      Difference      Steve M. Taylor      11/08/05 16:20      
         Not in india as well      Abhishek Singh      11/08/05 21:16      
            TN-S mains structure      Kai Klaas      11/09/05 06:06      
               Ours too      Steve M. Taylor      11/09/05 07:20      
                  I tried to explain this      Kai Klaas      11/09/05 15:12      
                     Hardly !      Steve M. Taylor      11/10/05 02:09      

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