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- Path: sparky!uunet!cs.utexas.edu!ut-emx!ibmchs!auschs!awdprime.austin.ibm.com!futserv.austin.ibm.com!rg
- From: rg@futserv.austin.ibm.com (R.G. Keen)
- Newsgroups: rec.audio
- Subject: Re: How to cure mains leakage?
- Message-ID: <1992Aug26.162127.21482@awdprime.austin.ibm.com>
- Date: 26 Aug 92 16:21:27 GMT
- References: <1992Aug26.073100.24942@nuscc.nus.sg>
- Sender: news@awdprime.austin.ibm.com (USENET News)
- Reply-To: ...@cs.utexas.edu:ibmaus!auschs!tmn1.austin.ibm.com!tung
- Organization: IBM Coporation - Advanced Workstations Division.
- Lines: 22
-
- You have a serious safety problem. This leakage could under some
- circumstances KILL someone.
-
- You need to find out whether the leakage is the sum of all of the
- equipment leaking a little or one box with a defect. If one, fix
- the defect. If it's the sum of all of them, the fix is a little harder.
-
- Three wire equipment is much safer. If possible, get the equipment
- converted to three wire. You will likely have some hum problems,
- but these can eventually be overcome. A solid safety ground to
- every piece of metal you can touch is safest, whether this is by
- third wire or from bolting into a grounded rack. It may be possible
- to add a safety ground wire separate from the mains cord to each
- piece of equipment, but that falls into the quick and dirty camp.
-
- A good technical library will have books covering safety and
- signal grounding techniques, if you have access. If you do not
- have the training and experience with electrical safety wiring to
- modify the equipment safely, I strongly urge you to find someone
- who does have this background to help.
-
- R.G.
-