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#139208 - 10/23/03 11:01 AM GFCI  
Creighton  Offline
Member
Joined: Jan 2002
Posts: 59
Hayward, CA
Does anyone have information on earth leakage circuit breakers used in
South African mines around 1950?
Your help will be appreciated. Creighton


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#139209 - 10/23/03 11:17 AM Re: GFCI  
C-H  Offline
Member
Joined: Sep 2002
Posts: 1,497
Stockholm, Sweden
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 12:17 PM Re: GFCI  
Creighton  Offline
Member
Joined: Jan 2002
Posts: 59
Hayward, CA
Thanks, C-H. That is just the ticket.
Creighton


#139211 - 10/24/03 02:45 PM Re: GFCI  
geoff in UK  Offline
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Joined: Dec 2002
Posts: 182
UK
That's an excellent bit of technical history. It throws a new light on things we now take for granted.


#139212 - 10/24/03 03:25 PM Re: GFCI  
pauluk  Offline
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Joined: Aug 2001
Posts: 7,520
Norfolk, England
It does indeed, I find these historical summaries of certain devices or practices to be very illuminating.



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