Adaptors can be a danger to the South African consumer

1 October 2020 Editor's Choice

The increased use of devices and appliances has resulted in the increased use of adaptors as well as adaptors-on-adaptors in South Africa. This creates a risk of fires, short circuiting and damage or malfunction of appliances. South African National Standard (SANS) 164-0 covers the specific requirements for plugs, sockets and adaptors and will lead to a new range of plugs and sockets in South Africa.

“With the array of appliances and devices that have become commonplace in today’s world, it is critical to ensure that the plugs and sockets are also changing to accommodate the more compact designs of plugs. New homes and offices should be fitted with the sockets according to the latest revision of SANS 164-0 and the different parts. We need to be aware of the improved switching arrangements of switched socket outlets, the inclusion of the SANS 164-2, compact design for 16 A plugs and most importantly the warnings that advise consumers not to use multiple adaptors, plugged into one another,” says Jodi Scholtz, lead administrator of SABS (The South African Bureau of Standards).


Figure 1.


Figure 2.

“SANS 164-0 covers the general requirements for plugs and socket outlets and is considered the base document for all the plugs and socket outlets systems in South Africa. Every new building should have these new SANS 164-2 type of sockets and all appliances should be fitted with the new plugs. South Africa has been lagging with the implementation of these global changes and the continued use of adaptors onto adaptors will just lead to more dangerous electricity usage and malfunctioning of appliances,” warns Gianfranco Campetti, chairperson of the technical committee responsible for the development of SANS 164 series of standards.



Campetti explains that since the 1900s, British standards have guided South African installations and appliances. In the 1960s, British standards for plugs and socket outlets introduced a “flat pin” design, not adopted by South Africa, which continued to use the large round pin (SANS 164-1) design, still in use today. Since then there have been 21 different types of plugs introduced, of various configurations and ratings. Most buildings still contain the traditional large 3-pin sockets and this has led to an increased use of adaptors. The revisions to the standard, published in July 2020 incorporate changes in technology covered in SANS 60884-1: Plugs and socket outlets for household and similar purposes. SANS 60884-1 is an adoption of the International Electrotechnical Commission (IEC) 60884-1 standard which also covers the general requirements for plugs and socket outlets.

New socket installations

In the last few years, various iterations of the new design have been available on the market, which accommodate the following type of plugs:

• 3-pin plugs (old type).

• Compact 3-pin plugs.

• USB outlets.

Some of the sockets for the compact 3-pin will indicate whether it can accommodate a rewireable plug or not as illustrated in Figure 1. Warning signs will appear on adaptors to prevent the use of multiple adaptors plugged into one another, thus avoiding the risk of electricity hazards due to overloading and poor connections (Figure 2).

Summary of the amendments in SANS 164-0

• Reducing the minimum clearance of an adaptor body to socket outlet surface to 8,0 mm from 12,0 mm.

• Introducing the symbol for adaptors not permitted to be plugged into one another in order to avoid straining the socket outlet. This was due to a safety risk to the consumer as the straining of the socket outlet can cause a short circuit between the neutral and live pins. This symbol has to be embossed on the adaptor to warn consumers of the danger of plugging adaptors into one another.

The construction industry, electrical contractors and households need to be aware of the amended requirements for South Africa. It is expected that new buildings will need to comply with the new standards within the period listed in the wiring code.




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