Conductor sizing for light commercial maintaince building


  #1  
Old 10-21-02, 02:01 PM
lars3159
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Conductor sizing for light commercial maintaince building

I asked a question a while back and was told that larger conductors are required for a 200A commercial service than are required for a 200A residential installation. Could someone give me a code reference for this.
Thanks
 
  #2  
Old 10-21-02, 02:59 PM
P
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NEC Table 310.15 (B)(6) permits a larger ampacity for conductors #4 to 400 MCM (copper) when they are used as Service Conductors for single-phase services for dwellings.
 
 

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