I reckon it's time to hit you with a few more oddities of British practice. Nothing big here; just a few more things off the top of my head that are different.
1. We do have Edison screw bulbs in some fixtures, but the majority of domestic light bulbs are a twin-contact bayonet fitting.
2. Electric ranges are hard-wired to the supply; no plug & socket disconnect. A switch to shut off power to the appliance is installed nearby (IEE specifies within 6 ft).
3. Fixed fans, wall heaters, etc. rated up to 3kW may be connected by a plug & adjacent outlet, but it is most usual for these to be hard-wired as well. When these are wired onto our standard ring, the outlet incorporates a suitable cartridge fuse (the same type as in our plugs) and may also include an isolation switch.
4. The main switch on a domestic panel opens the neutral as well as the "hot." Isolation switches for fixed appliances (as above) are also commonly double pole.
5. Cable sizes are measured differently. Old cables were specified by number & size of strands, e.g. a common size was 7/.029, or 7 seven strnds each 0.029 in. diameter. Metric cables introduced 1970 just specify the cross-sectional area in square millimeters, e.g. 1.5, 2.5, 4, 6, etc.
6. Aluminum is spelled ALUMINIUM, and pronounced al-u-MIN-ium rather than a-LU-mi-num.
That should keep you going a while.
