Variants
Several manufacturers have made deliberately incompatible variants for use where connection with standard plugs and sockets is not acceptable. Examples include filtered supplies for computer equipment and cleaners' supplies in public buildings and areas (to prevent visitors plugging things in). The most commonly seen variant is one made by MK that has a T-shaped earth pin.
The Walsall Gauge 13 A plug, which has each pin rotated 90°, was used by the BBC for technical power supplies, and sockets for these plugs can be seen in some London Underground stations.
- Variant plugs
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Walsall Gauge 13 A plug (bottom) compared to regular BS 1363 plug
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Walsall Gauge 13 A plug
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MK 13 A Plug with a T-shaped earth pin
Read more about this topic: BS 1363
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“Nationalist pride, like other variants of pride, can be a substitute for self-respect.”
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