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| 文档名称： |
各国电力电压表 |
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电压表， (点此参考锦日网其他相关内容) |
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peter-jetstar |
| 整理时间： |
08-18 |
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| 文档简介： |
To assist U.S. manufacturers, exporters and individuals living or traveling
abroad, this publication lists the characteristics of electric current available
and the type of attachment plugs used in most countries. It is an update
of a similar handbook published in 1991. The tables indicate the type of
current (alternating or direct current), number of phases, frequency (hertz),
and voltage, as well as the stability of the frequency and the number of
wires to a commercial or residential installation. This information pertains
to domestic and commercial service only. It does not apply to special commercial
installations involving relatively high voltage requirements or to
industrial installations.
For most countries listed here, two nominal voltages are given. The
lower voltages are used primarily for lighting and smaller appliances, while
the higher voltages are used primarily for air conditioners, heating, and
other large appliances. Travelers planning to use or ship appliances abroad
should acquaint themselves with the characteristics of the electric supply
available in the area in which the appliance is to be used. In some cases, a
transformer may be used to correct the voltage. However, if the appliance
requires exact timing or speed and if the frequency of the foreign electricity
supply differs from the one the appliance was designed for, it is advisable
to use an appliance designed for the foreign frequency since auxiliary equipment
to change frequency is bulky and expensive. Some foreign hotels
have circuits providing approximately 120 volts which allow guests to use
electric shavers and other low-wattage U.S. appliances.
The information presented here was compiled over a period of months
from a large number of sources. Consequently, there is some possibility of
errors or omissions for which the Department of Commerce cannot assume
responsibility. In addition, this information should not be taken as final in
the case of industrial or highly specialized commercial installations. It would
4 Electric Current Abroad
be impossible for the Department to maintain complete data on every foreign
industrial installation. For special equipment for commercial use or
heavy equipment for industrial use, the current characteristics for the area
of installation should be obtained from the end user.
The 1998 edition was prepared by the Trade Development unit in the
International Trade Administration, U.S. Department of Commerce. The
information was compiled by John J. Bodson, industry specialist in the
Office of Energy, Infrastructure, and Machinery. Editing, desktop publishing,
and production were done by Rebecca Krafft, of the Trade Information
Division of the Office of Trade and Economic Analysis.
The cooperation of various government and private agencies in providing
data is gratefully acknowledged. Special thanks go to the U.S. Foreign
and Commercial Service of the U.S. Department of Commerce and the
Foreign Service of the U.S. Department of State.
Questions about the content of this publication should be directed to
the Energy Division in the Office of Basic Industries, (202) 482-4931. |
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