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THE HISTORY OF THE WIRING CODE AND HOW THIS APPLIES TO OLD INSTALLATIONS | ECASA
THE HISTORY OF THE WIRING CODE AND HOW THIS APPLIES TO OLD INSTALLATIONS By Chris Koen, Highveld Regional Director, and Anthony Schewitz, Technical Advisor In South Africa, there have been four Wiring Codes since 1922, which influence the interpretation and application of the rules in today's code of practice. This is important when considering the statement on page 3 of SANS 10142-1 Edition 2: "The edition of the standard that was applicable at the date of erection of an electrical installation is to be considered the edition defining the requirements applicable to that particular installation." Knowing the history of the wiring codes helps electrical contractors make informed decisions when it comes to old installations and understanding what is compliant, what is not, and what is reasonably safe. Introduction of the first wiring codes in South Africa From 1922, electrical contractors in South Africa worked according to the Factories Act, which was their 'Bible' until 1940 when the