AC power plugs and sockets: British and related types
BS 546, Two-pole and earthing-pin plugs, socket-outlets and socket-outlet adaptors for AC (50–60 Hz) circuits up to 250 V is an older British Standard for three-pin AC power plugs and sockets. Originally published in April 1934, it was updated by a 1950 edition which is still current, [1] with eight amendments up to 1999.
History of AC power plugs and sockets - Wikipedia
The earliest is believed to be British Standard 73 Wall plugs and sockets (five ampere two-pin without earthing connection) which was first published in 1915. The International Electrotechnical Commission in 1934 established technical committee TC 23 for electrical fittings.
AC power plugs and sockets - Wikipedia
As early as 1885 a two-pin plug and wall socket format was available on the British market. By about 1910 the first three-pin earthed (grounded) plugs appeared. Over time other safety improvements were gradually introduced to the market. The earliest national [clarification needed] standard for plug and wall socket forms was set in 1915.
Museum of Plugs and Sockets: Historic BS 546 models
Most classic round pin plugs with protective earth, in the museum collection, meet the BS 546 standard effective at the time of plug production. Furthermore a BS 1778 socket is shown, and non-BS material made by Niphan and Clang.
Museum of Plugs and Sockets: BS 546 plugs and sockets
BS 546, also known as the Old British standard is used in countries that where electrified by the British, notably India, Pakistan, some East African countries and South Africa. In the UK BS 546 is occasionally used for special purposes. The history of BS 546 and preceding two and three round pin plugs is given on a separate page.
Museum of Plugs and Sockets: Non-earthed BS 546 types
The use of not earthed sockets and plugs ended in 1970 when BS 373 Part I was withdrawn, following the introduction of BS 4573. BS 4573:1970 defines 2-pin shaver plugs and sockets. They are the only not earthed domestic devices allowed nowadays in the UK. A concise history of British plugs and sockets is given on a separate page
BS546 (UK) standard plug type classifications by letter BS546 (UK ...
BS546 is the old British Standard for round pin plugs and sockets still found in UK and Ireland. The design originally dates from circa 1911, and via BS 73, the 1928 BS 317 ( Hand-shield and side entry three-pin wall plugs and sockets ) and the 1930 BS 372 ( Side entry wall plugs and sockets for domestic purposes ) it was finally standardised ...
Power plug, socket & mains voltage in Great Britain
2024年12月9日 · Almost all of the UK’s former colonies have adopted one of Britain’s plug and socket standards: either the obsolete types D and/or M, or the current type G. In many cases, the countries that became independent before the introduction of the type G standard (e.g. India, Nepal, South Africa, Namibia) still use types D or M.
The British plug and socket and ring final circuit system has proven itself over many years. Its development was due to the recognition of an opportunity seen by leaders during a time of war and mass destruction. A truly unique, innovative, world class system was developed by people of vision. A system that cannot be equalled in terms of safety,
Why are UK plugs different? - BBC Science Focus Magazine
Wartime Britain fused us to these odd shaped plug. Asked by: Peter Heaney, Swindon. The origins of our large plugs go back to the end of World War Two. With so many houses to build …
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