Standards derived from BS 546 AC power plugs and sockets: British and related types

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1 standards derived bs 546

1.1 indian 1293
1.2 malaysian standard ms 1577
1.3 russian gost 7396
1.4 singapore standard ss 472
1.5 south african sans 164





standards derived bs 546
indian 1293

indian standard is 1293:2005 plugs , socket-outlets of rated voltage , including 250 volts , rated current , including 16 amperes includes versions of 5 a , 15 a bs 546 connectors, rated @ 6 a , 16 a respectively. 6 a 3 pin sockets have 2 holes above line , neutral holes allow 5 a 2-pin plug connected.


malaysian standard ms 1577

ms 1577:2003 15 a plugs , socket-outlets domestic , similar purposes


russian gost 7396

the 2 a, 5 a, , 15 a, connectors of bs 546 duplicated group b1 of gost 7396 standard.


singapore standard ss 472

ss 472:1999 15 a plugs , switched socket-outlets domestic , similar purposes


south african sans 164

the south african standard sans 164 plug , socket-outlet systems household , similar purposes use in south africa defines number of derivatives of bs 546. household plug , socket defined in sans 164-1, , modernised version of bs 546 15 a (the essential differences pins can hollowed reduce amount of metal used, dimensions metricated, , rated 16 a). sans 164-3 defines 6 a plug , socket based on bs 546 5 a. south african wiring code defines plug , socket system defined in sans 164-2 (iec 60906-1) preferred standard, , expected sans 164-1 , sans 164-3 devices phased out around 2035.


sans 164-4 defines 3 variants of 16 a plug , socket intended specialist (known dedicated ) applications. variants use flattened earth pin, each @ different specified rotational position. arrangement ensures dedicated plugs can plug ordinary ( non-dedicated ) socket, various dedicated plug , socket combinations not interchangeable (nor can non-dedicated plug inserted dedicated socket).


the dedicated versions have specific colours assigned them, depending on rotational position of flattened portion. these black (-53°), red (0°), , blue (+53°). red (0°) version far common, , used on computer , telecommunication equipment (although not required in standard). in application dedicated socket refers 1 not connected residual current circuit breaker, otherwise mandated normal power sockets.








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