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#139208 10/23/03 10:01 AM
Joined: Jan 2002
Posts: 59
C
Member
Does anyone have information on earth leakage circuit breakers used in
South African mines around 1950?
Your help will be appreciated. Creighton

#139209 10/23/03 10:17 AM
Joined: Sep 2002
Posts: 1,498
Likes: 1
C
C-H Offline
Member
Here is a paper on the development of earth leakage circuit breakers from a South African perspective.
http://www.cbi.co.za/papers/24/CBI2.pdf

#139210 10/23/03 11:17 AM
Joined: Jan 2002
Posts: 59
C
Member
Thanks, C-H. That is just the ticket.
Creighton

#139211 10/24/03 01:45 PM
Joined: Dec 2002
Posts: 206
G
Member
That's an excellent bit of technical history. It throws a new light on things we now take for granted.

#139212 10/24/03 02:25 PM
Joined: Aug 2001
Posts: 7,520
P
Member
It does indeed, I find these historical summaries of certain devices or practices to be very illuminating.


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