Power difference? (1 Viewer)

[Abide]

Hi I was planning to go on a holiday soon, probably Hong Kong, and I was wondering that if I bought a computer over there, will it work here? I mean, I don't want to fry a shiny new computer just because the power output here is higher than that in Hong Kong.

So does anyone know?

 

[j_davo24]

'Electricity will be supplied using the Alternating Current (A.C.) system at a frequency of 50 Hertz.
The following voltages are available at the discretion of the Company:

(a) Single phase: 220 volts

(b) Three phase: i. 220/380 volts (3 phase 4 wire) ii. 11,000 volts iii. 132,000 volts

The declared limits of the supply under normal conditions are:

(a) Voltage: 220 volts and 220/380 volts supply - plus or minus 6% 11,000 volts and 132,000 volts supply - plus 10% or minus 2.5%

(b) Frequency: 50 Hertz - plus or minus 2%"

Sounds close, but you'd probably need some kind of adapter. Don't quote me though.

 

[Abide]

Thanks! But umm... I don't really understand the hard stuff , though you said I should probably get an adaptor? So.. I could just buy one at Harvey Norman, or something? Sorry, i'm not a very technology wise person.

 

[Adrian.]

Maybe just replace the power supply with one you buy here? I don't know though.

 

[Grizzly]

I bought my laptop from USA, and in there they use 220v or sumthing - however, the adaptor does 220 and 240, so i didnt need to buy anything when i brought it here , just change the plug.

 

[Abide]

After a little bit of research, I'm still confused but found out that Hong Kong's output in power is like 220V / 50Hz, and Australia is 240V / 50Hz. I don't know if I should be worried about that extra 20V...

 

[doe]

i think most power supplys have a little switch at the back you can swap the voltage, i just checked and about 2/3 of the machines here do. they all have stickers saying 230v tho

 

[Templar]

Check the power supply. Most DC transformers have an input of 110-230V and 50/60Hz, meaning that they can be used worldwide.

 

[doe]

just out of interest why is it 230 and not 240?

 

[sunny]

This conclusion is just extrapolated from my own knowledge.....

Most countries (especially the EU) have use 230V mains. So I would imagine most products are designed for 230V. But in this kind of scope, an extra 10V to 240V shouldn't be too much of a problem, especially considering components have a tolerance in mind. Standard voltages are picked to maximise efficiency in transmission.