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You're not taking the amps into account. Voltage without the amps on the circuit breaker is pretty useless. Quickly Googling indicates that a standard residen

by wheels 3y ago

You're not taking the amps into account. Voltage without the amps on the circuit breaker is pretty useless. Quickly Googling indicates that a standard residential circuit breaker in Japan is 30A (3000 watt max), meaning you'd get more power than you would in the US with 120v / 15A (1800 watt max), and much less than where I live in Germany with 230v / 16A (3680 watt max).

midoridensha 3y ago
>You're not taking the amps into account. Voltage without the amps on the circuit breaker is pretty useless. Quickly Googling indicates that a standard residential circuit breaker in Japan is 30A Sorry, that's wrong. The breakers on my 100V outlets here in Tokyo are 15A IIRC (I'm not home at the moment). 30A sounds like an air conditioning circuit. 30A on a regular outlet would require huge wires; they're not going to wire a whole apartment with that stuff. I actually have a kettle here, bought in Japan. It's rated at 900W. It's OK for boiling a single cup of water, but it's definitely not quick. Faster than the microwave though: microwaves here are 500W or 600W (frequently selectable), and the high-end ones go up to 900W. All this should tell you something about the amp capacity of the kitchen outlets here.
- midoridensha 3y ago
  Just a note about the power ratings here: 900W is how much my kettle is rated for, which means it actually draws 900W of power (which is about 9A at 100V). For the microwave, 900W is the power transmitted to the food, not the power drawn from the outlet. All microwaves are rated this way. But microwaves are not particularly efficient; just guessing, I'd guess that a typical 1200W American microwave draws around 1500-1600W, and certainly no more than 1800W since that's the max the outlet can provide. So my microwave at the 900W setting probably draws a bare minimum of 1100W (11A at 100V). And that's a fancy microwave; the typical microwaves here are all 500/600W. I think the most powerful one I've ever seen in a store was 1000W, so that's probably the highest power rating that can safely run on typical kitchen circuits here in reasonably modern buildings.

by wheels 3y ago

midoridensha 3y ago

>You're not taking the amps into account. Voltage without the amps on the circuit breaker is pretty useless. Quickly Googling indicates that a standard residential circuit breaker in Japan is 30A Sorry, that's wrong. The breakers on my 100V outlets here in Tokyo are 15A IIRC (I'm not home at the moment). 30A sounds like an air conditioning circuit. 30A on a regular outlet would require huge wires; they're not going to wire a whole apartment with that stuff. I actually have a kettle here, bought in Japan. It's rated at 900W. It's OK for boiling a single cup of water, but it's definitely not quick. Faster than the microwave though: microwaves here are 500W or 600W (frequently selectable), and the high-end ones go up to 900W. All this should tell you something about the amp capacity of the kitchen outlets here.

midoridensha 3y ago
Just a note about the power ratings here: 900W is how much my kettle is rated for, which means it actually draws 900W of power (which is about 9A at 100V). For the microwave, 900W is the power transmitted to the food, not the power drawn from the outlet. All microwaves are rated this way. But microwaves are not particularly efficient; just guessing, I'd guess that a typical 1200W American microwave draws around 1500-1600W, and certainly no more than 1800W since that's the max the outlet can provide. So my microwave at the 900W setting probably draws a bare minimum of 1100W (11A at 100V). And that's a fancy microwave; the typical microwaves here are all 500/600W. I think the most powerful one I've ever seen in a store was 1000W, so that's probably the highest power rating that can safely run on typical kitchen circuits here in reasonably modern buildings.