From: Dhiya Mehdi (mehdi_at_tic.toshiba.com.au)
Date: 2001-06-13 03:19:12
frans,
Thank you for the eeg circuit.
In reply to your email
Irrespective whether the pc is grounded or not,
it is improper practice to connect eeg equipment to a pc
if the eeg equipment does not have isolation inbuilt in it which
complies to the relevant standards.
As for the use of earth leakage protection with live equipment,
this is recommended if there is a danger of electrocution such as
in wet areas (kitchen/bathroom.)
In industrial work, earth leakage protection is required for all tools
(such as drills). For domestic work it is recommended to be installed
to cover possible accident (electric grass mowers, hair dryers etc.)
The device used (earth leakage circuit breaker) for leakage protection
operates
in the milliamps range. This range is different for industrial/household
applications
and say hospitals.
-----Original Message-----
From: frans smith [mailto:f.smith_at_c...]
Sent: Thursday, 1 January 1998 10:35 AM
To: buildcheapeeg_at_yahoogroups.com
Subject: [buildcheapeeg] GROUNDING EEG/PC
Hi all,
Most PC-users are not aware of the fact that the pc does not
uses power supply like other electronical stuff (TV, radio etc).
The PC don''t make use of "transforming" the net-power by
means of a transformator. In fact, pc is directly attached to the
NET !!!!!
Should whe not warning user of rs2332 "to ground the pc"
Most PC users use there PC in a room where there is no
grounding. In The netherlands grounding is only in the kitchen
or badroom. Grounding the PC and thus the EEG could help
at least to minimize the effects of accidents.
Question to Joerg,
In electronics whe used special tranformation 220v tot 220v,
(i don't know the englisch name for it) so as to protect the
technician when working in for example an TV.
could the same safety-set-up be used when working with an
PC ?.
Frans
Yahoo! Groups Sponsor
To unsubscribe from this group, send an email to:
buildcheapeeg-unsubscribe_at_egroups.com
Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
This archive was generated by hypermail 2.1.4 : 2002-07-27 12:28:31 BST