This South African standard was prepared by National Committee SABS/TC 067/SC 05, Electricity distribution systems and components – Electricity distribution, in accordance with procedures of the South African Bureau of Standards, in compliance with annex 3 of the. This South African standard was prepared by National Committee SABS/TC 067/SC 05, Electricity distribution systems and components – Electricity distribution, in accordance with procedures of the South African Bureau of Standards, in compliance with annex 3 of the. This document consists of explanatory notes on the implications and application of the more important regulations concerning electrical installations. The notes are meant to help and guide suppliers, contractors, registered persons, users, approved inspection authority for electrical installations. The South African regulatory environment is strict, with a primary focus on safety and standardization to prevent electrical fires, injuries, and fatalities. Tel: +27 (0) 12 428 7911 / 0861 27 7227 email: info@sabs. za warning signs and to renumber the subclauses accordingly, and to update the annex on clearances required for. 1. Building Regulations (NBR) Intro. South Africa's National. The Minister of Labour has, under section 43 of the Occupational Health and Safety Act, 1993 (Act No.