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Old 28th Jun 2011, 7:12 pm   #1
AndiiT
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Join Date: Aug 2005
Location: Saltburn-East, Cleveland, UK.
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Default Another unusual plug and some other questions

Hi,
A recent purchase of mains plugs to add to my collection brought with it a strange round pinned 3 pin MK branded plug which at first sight appears to be a "standard" 5 amp one. Closer investigation reveals that the pin spacing lies somewhere in between that of a 5 amp 3 pin and the Dorman and Smith Britmac "Wandsworth" 13 Amp plug. I have enclosed pictures of all three for comparison purposes.

It has been suggested that the plug in question may have been used in industry and, as the earth pin is of an odd design, maybe with a latching socket.

My other questions relate to the progression of plugs and sockets over the years - from a logical point of view it would seem that the two pin 5 amp was first followed by the 2 pin 15 amp, the three pin variants being produced later. That said where does the 2 and 3 pin 2 amp plug/socket combination fit in?
I know that Wylex plugs had an earth pin so were they produced after the 2 pin plugs and sockets?

These questions arise out of pure curiosity.

Thanks in advance

Andrew
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