| General > General Technical Chat |
| Grumpy rant #783 |
| << < (34/36) > >> |
| TimFox:
Nonsense. Regulations specify the physical dimensions of the interface, from which other dimensions follow. |
| PlainName:
--- Quote from: Connecteur on October 21, 2023, 05:04:55 pm ---Regulations didn't specify that the plug should be big, ugly and awkward. I'm sure several proposals were made by different parties. Unfortunately this one was accepted, probably under the belief that "all gain requires pain." --- End quote --- Perhaps it would save a lot of time and slurs if you could show an example of either what you think is a well-designed plug or your own design for a good plug. Doesn't need to be production-ready CAD - a sketch will be fine if it shows the idea clearly. |
| coppice:
--- Quote from: themadhippy on October 21, 2023, 04:37:42 pm --- --- Quote ---That fuse needs space that most mains plugs around the world dodge, --- End quote --- if they'd stuck with round pins the fuse could have gone in the live pin,as was done by the odd manufacturer ,but then again 15A unfused plugs are about the same size as the 13A --- End quote --- I think they purposefully moved from round pins in the old British plugs to rectangular ones for a more reliable high current connection. |
| themadhippy:
--- Quote ---I think they purposefully moved from round pins in the old British plugs to rectangular ones for a more reliable high current connection. --- End quote --- ceeforms and powerlocks seem to manage ok being round , more likley to avoid unfused plugs being used the newfangled ring,or to sell more plugs |
| coppice:
--- Quote from: themadhippy on October 21, 2023, 07:17:29 pm --- --- Quote ---I think they purposefully moved from round pins in the old British plugs to rectangular ones for a more reliable high current connection. --- End quote --- ceeforms and powerlocks seem to manage ok being round , more likley to avoid unfused plugs being used the newfangled ring,or to sell more plugs --- End quote --- I used the old British plugs a lot in my childhood, and more recently in India. I'm pretty sure there is a contact quality reason for choosing a flat contact surface. The smaller 5A plug isn't too bad, but the bigger 15A can be iffy. Interestingly you can find those plugs with part plastic sheathed pins, in the style of the more recent 13A plugs. I've never seen them in use, though. Military connector designers love using round pins, but they go for elaborate contact arrangement you couldn't afford to put in cheap household goods. |
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