Receptacle Roundup XIIc: Rest of Asia

There are several virgin territories for EV charging:

Taiwanese Standard (CNS10917)

Taiwan uses the 2-prong and 3-prong that Japan and the US do.  That was easy!

312Australia/New Zealand/Oceania (AS3112/NS3112/Others)

Aussies and Kiwis use a household plug derived from Argentina/Uruguay’s: a 3-prong with angled hot and neutral.  However, those antipodals reversed hot and neutral from the older IRAM 2073 standard.  It’s good for 230 volts and 10 amps (i. e., 2.3 kW), not quite as much as the UK but still beating the US standard.  But there’s a neat trick: the higher-amp connector standard (15A, 3.4 kW) simply enlarges the ground pin, so the beefier appliance socket can still take ordinary plugs- “backward compatibility.”  (This also implies the 10A hot and neutral blades have leeway and safety margin.) 

The next higher socket changes the two angled blades from an “I” shape to an “L” shape, still backward compatible with the 10A and 15A plugs.  Then there’s an even higher-powered standard that goes from “L” blades to “C” blades.  Australians thus have a ready system to charge both overnight, and at medium speeds.

India (BS 546)

India didn’t fare so well.  The “BS” in BS 546 stands for “British Standard.”  Indian gadgets plug into a connector that Britain already abandoned over 60 years ago.  The upsized connector, too, is the British appliance plug, a slightly wider variant of BS 546.

China (Multiple)

Here’s where it gets interesting.  China has a standard for household devices (GB 1002) that looks just like the US/Japanese 2-prong.  China’s numerous e-bikes and electric scooters plug into this just fine; 10 amperes is great, since they’re at 240 volts like most of the world.

For larger needs, China uses an angled 3-prong not unlike Australia/New Zealand.  The GB 2099 standard is pretty much AS3112 for 10 amperes, but has an even larger ground blade for 16A installations.  Again, this is a ready path for charging a car overnight from an “appliance plug,” likely to be in ground floors already.


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