Chronology AC power plugs and sockets: British and related types

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an mk plug original version of standard. note unsleeved line & neutral pins, , inspection hole purpose of making connection of earth conductor visible cover in place (as required bs 1363:1947 clause 15.)


bs 1363 periodically revised, , supplements , amendments issued between major revisions. bs 1363:1984 , earlier versions dealt 13 a plugs , sockets. 1989 onwards standard rearranged 5 parts follows:



part 1: rewirable , non-rewirable 13 a fused plugs
part 2: 13 a switched , unswitched socket-outlets
part 3: adaptors
part 4: 13 a fused connection units: switched , unswitched
part 5: 13 a fused conversion plugs

the following chronology shows revisions, supplements , significant amendments.


june 1947: bs 1363:1947 fused-plugs , shuttered socket-outlets published.


may 1950: bs 1363:1947 amendment 3, title changed specification two-pole , earthing-pin fused-plugs , shuttered socket-outlets a.c. circuits 250 volts (not intended use on d.c. circuits) .


january 1957: bs 1363:1947 amendment 5, added clause permitting operation of shutters simultaneous insertion of 2 or more pins (in addition original method using earth pin).


january 1957: bs 1363:1947 supplement no. 1 added specification surface mounted socket-outlets.


1957: complementary standard published, bs 2814:1957 two-pole , earthing-pin flush-mounted 13-amp switch socket-outlets a.c. circuits 250 volts . separate standard specifying switched version of bs 1363 socket-outlet use bs 1363 plugs.


december 1960: bs 1363:1947 supplement no. 2, added specification resilient plugs.


december 1961: bs 2814:1957 amendment 2, title simplified 13 ampere switch socket-outlets .


1962: bs 2814:1957 supplement no. 1 added specification surface mounted switch outlets.


september 1967: bs 1363:1967 specification 13a plugs, switched , unswitched socket-outlets , boxes published. standard superseded both bs 1363:1947 , bs 2814:1957. 3 a , 13 a fuses specified. resilient plugs included.


august 1984: bs 1363:1984 specification 13 a fused plugs switched , unswitched socket-outlets published. standard superseded bs 1363:1967. changes include introduction of sleeved pins on line , neutral, metric dimensions replacing inches, specifications added non-rewirable plugs , portable socket-outlets. standard aligned, possible, proposed iec standard domestic plugs , socket-outlets.


february 1989: bs 1363-3:1989 13 a plugs socket-outlets , adaptors - part 3: specification adaptors published. new standard covers adaptors use bs 1363 socket-outlets , includes conversion adaptors (those accept plugs of different type), multiway adaptors (those accept more 1 plug, may or may not of different type) , shaver adaptors. adaptors (except accepting not more 2 bs 1363 plugs) require fused. sockets, including other standards, must shuttered.


1994: product approval specification, pas 003:1994, non-rewirable 13 a plugs plastic socket shutter opening pins published. pas 003 allowed design , approval of plugs without earthing intended class ii applications only. superseded bs 1363-1:1995 pas not withdrawn until 23 july 2013.


february 1995: bs 1363-1:1995 13 a plugs socket-outlets adaptors , connection units - part 1: specification rewirable , non-rewirable 13 a fused plugs published. standard, bs 1363-2:1995, supersedes bs 1363:1984. provisions of pas 003 incorporated, plastic pin redesignated isod


september 1995: bs 1363-2:1995 13 a plugs socket-outlets adaptors , connection units - part 2: specification 13 a switched , unswitched socket-outlets published.


september 1995: bs 1363-3:1995 13 a plugs socket-outlets adaptors , connection units - part 3: specification adaptors published. supersedes bs 1363-3:1989


november 1995: bs 1363-4:1995 13 a plugs socket-outlets adaptors , connection units - part 4: specification 13 a fused connection units switched , unswitched published. new standard.


august 2008: bs 1363-5:2008 13 a plugs socket-outlets adaptors , connection units - part 5: specification 13 a fused conversion plugs published. new standard.


may 2012: bs 1363-1:1995 +a4:2012 (title unchanged) published. amended standard allows switches incorporated plugs, , introduced new overload tests amongst others. bs 1363-1:1995 remained current until 31 may 2015.


may 2012: bs 1363-2:1995 +a4:2012 (title unchanged) published. amended standard adds requirement shall not possible operate shutter insertion of two-pin europlug, , introduced new temperature rise tests amongst others. bs 1363-2:1995 remained current until 31 may 2015.


may 2012: bs 1363-4:1995 +a4:2012 (title unchanged) published. minor changes bs 1363-4:1995 remained current until 31 may 2015.


november 2012: bs 1363-3:1995 +a4:2012 (title unchanged) published. amended standard adds requirement shall not possible operate shutter insertion of two-pin europlug, , added specifications switched adaptors amongst others. bs 1363-3:1995 remain current until 31 december 2015.


august 2016: bs 1363-1:2016 (title unchanged) published. added requirements incorporated electronic components , electric vehicle charging. bs 1363-1:1995 +a4:2012 remain current until 31 august 2019.


august 2016: bs 1363-2:2016 (title unchanged) published. added requirements incorporated electronic components , electric vehicle charging. bs 1363-2:1995 +a4:2012 remain current until 31 august 2019.


august 2016: bs 1363-3:2016 (title unchanged) published. added requirements incorporated electronic components. bs 1363-3:1995 +a4:2012 remain current until 31 august 2019.


august 2016: bs 1363-4:2016 (title unchanged) published. minor changes only. bs 1363-4:1995 +a4:2012 remain current until 31 august 2019.


august 2016: bs 1363-5:2016 (title unchanged) published. minor changes only. bs 1363-5:2008 remain current until 31 august 2019.







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