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- Newsgroups: comp.sys.mac.hardware
- Path: sparky!uunet!mcsun!sun4nl!alchemy!ruunfs!denbok
- From: denbok@fys.ruu.nl (Henk den Bok)
- Subject: Re: Grounding your mac
- Message-ID: <1992Aug20.083847.27806@fys.ruu.nl>
- Sender: usenet@fys.ruu.nl (News Control)
- Organization: Physics Department, University of Utrecht, The Netherlands
- References: <hise.714052860@vincent1.iastate.edu> <1992Aug17.122019.119@physc1.byu.edu>
- Date: Thu, 20 Aug 1992 08:38:47 GMT
- Lines: 24
-
- I would strongly advise NOT to use either the plumbing or heating
- pipes as grounding, for the following reasons:
-
- 1) Plumbing or heating pipes are very bad grounds. If you're lucky,
- it has some electrical connection with ground but usually that is
- very noisy. Computers don't like that. If you're less lucky,
- the water supply company is using non-conducting water pipes in
- the ground (e.g. PVC). In that case, the plumbing is 'floating'.
-
- 2) If your mac goes bananas and puts tension on the ground lead, which
- you have connected to the plumbing, the plumbing becomes live and
- you can fry yourself and/or your neighours.
-
- I suggest you invite a workman into your home to install a ground lead
- to the outlet you want it in and replace the outlet by a grounded one.
- This should not take more than half an hour.
-
- Cheers, Henk
- --
- Henk den Bok email: denbok@fys.ruu.nl
- Department of Physics and Astronomy tel. : (+31)-(0)30-537556
- P.O. Box 80.000 fax : (+31)-(0)30-531601
- 3508 TA Utrecht
- Holland
-