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GFCI

#139208 10/23/03 11:01 AM

Joined: Jan 2002

Posts: 59

Hayward, CA

C

Creighton

OP

Member

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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Re: GFCI

#139209 10/23/03 11:17 AM

Joined: Sep 2002

Posts: 1,498

Likes: 1

Stockholm, Sweden

C

C-H

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

Re: GFCI

#139210 10/23/03 12:17 PM

Joined: Jan 2002

Posts: 59

Hayward, CA

C

Creighton

OP

Member

Thanks, C-H. That is just the ticket.
Creighton

Re: GFCI

#139211 10/24/03 02:45 PM

Joined: Dec 2002

Posts: 206

UK

G

geoff in UK Offline

Member

That's an excellent bit of technical history. It throws a new light on things we now take for granted.

Re: GFCI

#139212 10/24/03 03:25 PM

Joined: Aug 2001

Posts: 7,520

Norfolk, England

P

pauluk

Member

It does indeed, I find these historical summaries of certain devices or practices to be very illuminating.

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