Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!seismo!columbia!rutgers!clyde!cbosgd!ihnp4!ihlpe!psfales From: psfales@ihlpe.ATT.COM (Pete Fales) Newsgroups: sci.electronics Subject: Re: Neutral-Ground Shorts Message-ID: <1790@ihlpe.ATT.COM> Date: Wed, 17-Jun-87 10:54:47 EDT Article-I.D.: ihlpe.1790 Posted: Wed Jun 17 10:54:47 1987 Date-Received: Sun, 21-Jun-87 11:16:54 EDT References: <820@sdcc12.ucsd.EDU> <583@inuxh.UUCP> <467@rlvd.UUCP> Organization: AT&T Bell Laboratories - Naperville, Illinois Lines: 25 In article <467@rlvd.UUCP>, news@rlvd.UUCP (News) writes: > In article <583@inuxh.UUCP> rmrin@inuxh.UUCP (D Rickert) writes: > > > >Neutral and ground should be tied together. Look out for the outlets > >in which it isn't. > > Neutral and ground should NEVER be tied together. Ask yourself what is the > point of having seperate lines if you are going to join them > together. The reasons for keeping them separate are to do with the > safety of the earth protection in the event of a Neutral fault. I think that part of the confusion here is that no one has ever defined what they mean by "tied together." If what you mean is "visibly connected with a wire" then, as previously stated, it is imperative that they be connected only at the service entrance. However, I suspect that the D Rickert and the original poster meant that AFTER DISCONNECTING THE MAIN CIRCUIT BREAKER, if you check neutral and ground with a ohmmeter, you will find them shorted together. In this case, you should worry if they aren't connected because the neutral is not providing you with any protection. -- Peter Fales UUCP: ...ihnp4!ihlpe!psfales work: (312) 979-7784 AT&T Information Systems, IW 1Z-243 1100 E. Warrenville Rd., IL 60566