It's hard to tell the limits of your inquiry. In simple US NEC terms, there is no special name for the termination of the "grounded conductor" or neutral at the load. However, you can have star connected three phase loads and view the neutral as a star connection point. It simply is not a code defined term.
Keep in mind, the only point of connection between the "grounded conductors" (neutral) and the "grounding conductors" (safety earth) is the "main bonding jumper". This occurs only once at the "service" entrance or the source of a "separately derived system" (transformer or generator). It cannot occur again at the load. This point is also connected by means of the "grounding electrode conductor" to a third point, the "grounding electrode" (building steel, water main, buried electrode, etc.) Within panelboards motor controllers, etc, you may find two distinct bus bars called "equipment grounding terminal bar" and "grounded conductor bar" (neutral bar). Bob Johnson ITE Safety From: [email protected] [mailto:[email protected]] On Behalf Of Jon Griver Sent: Tuesday, March 18, 2003 5:13 AM To: [email protected] Subject: Term in Electricity Group Members, My apologies for a slightly off-topic question for the electricians amongst us. Is there a special term used for the "zero" connection point of neutral conductors at the load end of a three-phase network, i.e. the equivalent of the 'star' connection point at the transformer, except at the load end? I am interested in both US and UK terms. Regards, Jon Griver http://www.601help.com The Medical Device Developers Guide to IEC 60601-1 This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: [email protected] Dave Heald: [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
