Laptop e smartphone sono diventati indispensabili per i viaggi d'affari all'estero.
Certo, anche se sei in viaggio d'affari per qualche giorno, non puoi fare affidamento solo sulla batteria.
È necessario collegarlo a una fonte di alimentazione per utilizzarlo o caricare la batteria.
Tuttavia, the power situation in the world is not the same as in Japan.
Here, we have summarized the differences and precautions regarding power supply from Japan.
Sommario
What is the difference between Japan and overseas?
When using a power source overseas, there are three differences from Japan.
Shape, voltage, and frequency of the power plug
Let’s look at each one.
Power plug shape
There are various power plug shape standards in the world.
QUESTO, Japan is almost unified to “A type,” but depending on the country/region, multiple types may coexist.
Voltage
The voltage of the commercial power supply in Japan is 100V, the lowest in the world, which is a very rare standard.
Perciò, if you want to use Japanese electric appliances overseas, you need to transform them.
Frequency
Commercial power is distributed by alternating current.
In alternating current, the plus and minus of electricity are constantly swapped.
The number of times it is switched per second is called frequency, and 50Hz means that it is switched 50 times per second, and 60Hz means that it is switched 60 times.
In most countries/regions, it is unified to 50Hz or 60Hz, but Japan is a rare country with a mixture of 50Hz and 60Hz.
Tuttavia, for that reason, many electric appliances sold in Japan are compatible with both 50Hz and 60Hz, which may be merit.
Let’s take a closer look at these.
It is best to contact the site for the power plug shape
If the shape of the power plug is different, you will not be able to plug the power cord into the outlet physically.
It’s the same as a USB port in familiar things.
There are various standards these days, and if you buy a new smartphone, you may not be able to use the existing USB cable.
A conversion adapter on the market supports only the connector part instead of replacing the entire cable so that some people may be using it.
Similarly, if you use a conversion plug (also called a conversion adapter) that matches the power plug shape of the power cord to the outlet, you will use the power supply overseas.
Tuttavia, please note that the “power conversion plug” does not have a transformer function.
QUESTO, overseas, power is distributed at a higher voltage than in Japan.
In Southeast Asia, it is supplied at 220-240V, so prepare a conversion plug that supports that voltage.
So how do you find out what conversion plug you need?
In conclusion, it is advisable to contact a facility that uses power, such as the hotel you are staying at.
In Japan, most outlets are A-type.
There are some outlets for air conditioners and 3-pin type A with grounding, but there is no problem in regular use.
Tuttavia, overseas, there are cases where multiple types are mixed even within the same country/region.
A list of plug shapes and voltages by country/region is posted and posted on the sales floors of mass retailers, mail-order sites, and manufacturers’ websites.
According to one site, 6 types (Digitare un) are used in Indonesia.
It is bulky to prepare all the corresponding conversion plugs, and the cost is not ridiculous.
Even more annoying is that the content described by the sources is mixed.
I looked at several stores and websites as I wrote this article, but there is considerable variability.
I will tell you about this in another article.
Inoltre, there are cases where the outlet side is multi-compatible.
standard, many outlets in major cities in Thailand also support A type, as shown in the photo below, and you can use it without a conversion plug.
The outlet is on the left side, but you can insert the type A plug into the plate-shaped mouth (surrounded by red) inside the vertically arranged round holes (tipo C).
Perciò, it is safer to check in advance without any mistakes.
The AC adapter absorbs the difference between voltage and frequency
An AC adapter is an external power supply that supplies electricity to laptops and smartphones.
Since it is assumed that the built-in battery is used in notebook PCs and smartphones, it is sometimes called a “charger” because it is a device for charging the battery.
The electricity distributed to Japanese homes and offices is 100V alternating current (ingegnere).
Tuttavia, electronic devices such as personal computers use a direct current (ingegnere) of 100V or less.
Perciò, it is necessary to transform the voltage or rectify the alternating current to a direct current.
The power supply plays that role.
The external power supply that is separated from the main body of the electrical appliance is called an AC adapter.
Since electronic devices are exported worldwide, they must be adapted to the electrical conditions of various countries and regions.
Perciò, most AC adapters, including those that come with your purchase and those made by third parties, support input voltages from 100V to 240V and frequencies at 50Hz and 60Hz.
Be sure to check it as it is written on the main unit.
Tuttavia, there is one blind spot.
There are three types of AC adapter plugs that plug into an outlet.
- The adapter body has a power plug
- A power cord connects the body, and the power plug
- The body and the power plug are connected by a power cord and can be separated
The problem is this third separation.
If you look closely at the code of the AC adapter purchased in Japan, it is often stated as “125V”.
The AC adapter body and the cord that connects the AC adapter to the product body support 100V to 240V, but the cable that connects the power plug to the AC adapter only supports 125V.
If this is used overseas, such as 220V, there is a risk of heat generation due to disconnection, fire, electric shock, eccetera.
Only this part needs to be purchased separately.
It is sold as a “high voltage compatible power cord” at home electronics mass retailers and mail order sites.
Using a 125V cord for a 220V outlet may not mean that an accident will occur immediately.
Some people may have used it without realizing it.
Tuttavia, if an accident occurs, compensation will not cover it.
If you forget it, we recommend you to buy it locally.
Precautions when bringing it on an airplane
Be careful when you bring it on a plane.
Be sure to check this with each airline.
Lithium batteries (lithium-ion batteries) are used as batteries for electronic devices, and if they catch fire in an invisible place such as a cargo compartment, it may cause catastrophe.
In the first place, notebook PCs and tablets are treated as valuables, so you are urged not to put them in your checked baggage.
If you put it in your checked baggage, be sure to shut down the power supply (sleep is not possible).
QUESTO, mobile batteries and spare batteries for electronic devices cannot be placed in checked baggage.
If you do, it will be found by X-ray inspection and confiscated.
QUESTO, depending on the battery’s capacity, it may not be possible to carry it on board.
Please note that some electronic devices are not allowed to be brought in.
Please check these in advance, as the correspondence differs depending on the country/region.
Riepilogo
Preparation is required because the power supply situation is different between Japan and overseas.
It is safe to check the plug shape on site.
Check the compatible voltage and frequency of the AC adapter.
The AC adapter that can separate the main unit and the cavo di alimentazione is a cord.
Be careful about the capacity of the mobile battery。
Do not put the mobile battery in your checked baggage。
Some electronic devices and batteries cannot be carried on board.
If you cannot use your notebook PC or smartphone when you are on a business trip, you will not be able to work.
Make sure to check and prepare in advance.
