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The main report listed eight points to consider in deciding the design of the new standard. This amended standard adds a requirement that it shall not be possible to operate a shutter by the insertion of a two-pin Europlug, and added specifications for switched adaptors amongst others. This standard superseded BS 1363:1967. Changes include the introduction of sleeved pins on Line and Neutral, metric dimensions replacing inches, specifications added for non-rewirable plugs and portable socket-outlets. BS 546:1950 (current version confirmed October 2012) specifies pin dimensions only in decimal fractions of an inch, as shown below. Each has the same general appearance but they are different physical sizes to prevent interchangeability, they use pin spacing which is also different from the two pin plugs specified in BS 372, so earthed plugs will not fit into unearthed sockets, and vice versa. BS 1363:1984 and earlier versions dealt only with 13 A plugs and sockets.

Note, the original lengths of the line and neutral pins on the 15 and 5 amp versions were slightly longer at 0.812 inches (20.6 mm) and 0.625 inches (15.9 mm) respectively. The type D 2 amp and 5 amp plugs are mainly used for lighting such as table lamps. Moulded plugs for unearthed, double-insulated appliances may instead have a non-conductive plastic pin (an Insulated Shutter Opening Device or ISOD) the same size and shape as an earth pin, to open the shutters. 1994: A Product Approval Specification, PAS 003:1994, "Non-Rewirable 13 A Plugs with Plastic Socket Shutter Opening Pins" published. September 1995: BS 1363-2:1995 "13 A plugs socket-outlets adaptors and connection units - Part 2: Specification for 13 A switched and unswitched socket-outlets" published. This 5 A plug, along with its 2 A cousin, is sometimes used in the UK for centrally switched domestic lighting circuits, what are electric cables in order to distinguish them from normal power circuits; this is quite common in hotel rooms.

A separate standard specifying a switched version of the BS 1363 socket-outlet for use with BS 1363 plugs. February 1989: BS 1363-3:1989 "13 A plugs socket-outlets and adaptors - Part 3: Specification for adaptors" published. This new standard covers adaptors for use with BS 1363 socket-outlets and includes conversion adaptors (those which accept plugs of a different type), multiway adaptors (those which accept more than one plug, which may or may not be of a different type) and shaver adaptors. Please note that this also includes using plug adapters so it is possible to get multiple plugs from one power source. Plugs and sockets were usually of an industrial waterproof design with a screw locking ring on the plug to hold it in the socket against waterproof seals, and sockets often had a screw cap chained to them to be used when no plug was inserted to keep them waterproof. BS 1363 is a British Standard which specifies the common single-phase AC power plugs and sockets that are used in the United Kingdom. BS 1363 was introduced in 1947 as one of the new standards for electrical wiring in the United Kingdom used for post-war reconstruction. The plug and socket-outlet system defined in BS 1363 is a result of one of the report's recommendations.

BS 1363 is periodically revised and with supplements and amendments issued between major revisions. The following chronology shows revisions, supplements and significant amendments. Even with all the parts fitted into the back of a monitor, it is incredibly slim. Both line and neutral carry current and are defined as live parts. Since the fuse or circuit breaker for a final ring circuit has to be rated for the maximum current the final ring could carry (30A or 32A for a breaker), additional protection is required at each socket-plug connection. September 1995: BS 1363-3:1995 "13 A plugs socket-outlets adaptors and connection units - Part 3: Specification for adaptors" published. The standard was aligned, where possible, with the proposed IEC standard for domestic plugs and socket-outlets. The standard specifies breaking time versus current characteristics only for 3 A or 13 A fuses. A fused 13 A version of this continued to be available after the introduction of BS 1363, illustrating that BS 546 was not used exclusively at any time. Although still permitted by the UK wiring regulations, BS 546 sockets are no longer used for general purposes. When BS 546 was in common use domestically in the UK the standard did not require sockets to be shuttered, although many were.