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Old 23rd Jan 2021, 9:06 am   #364
broadgage
Nonode
 
Join Date: Jan 2010
Location: North Somerset, UK.
Posts: 2,129
Default Re: Technology related anachronisms on TV and in films etc.

Last nigh'ts episode of Foyles war involved a blown fuse in the home of a lady and and this being replaced by a "friend"
The friend stated that the problem was due to someone having "fitted a 3 amp fuse to the ring main"

Don't think that ring circuits were in general use then.
And if they were, failure of the ring circuit fuse would not extinguish the lights as occurred.
And 3 amps was never a widely used size for re-wireable fuses, then or more recently.
The most common sizes were 5amp, 15 amp, and 30 amps, with 10 amps and 20 amps being less common.
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