Transmission Techniques: Wire and Cable 44510 MHz. Power cords used in applications involving
extremely high EMI and RFI environments require shield
constructions such as Belden Z-Fold¥foil providing
100% coverage, plus another layer of tinned copper braid
of 85% coverage, or greater. This provides the maximum
shielding available in a flexible power cord.
Shield effectiveness is an important benefit where
interference-sensitive electronic devices, such as
computer and laboratory test equipment are concerned.
However, any designer or installer should realize that
the ultimate protection between power cable and other
cables or equipment is distance. The inversesquare-law
clearly states that double the distance results in four
times less interference. Double that distance is sixteen
times less, etc.
14.28.9 International Power
Table 14-40 gives the current characteristics for various
countries. These are for the majority of the cities in each
country, however some countries have different currents
in different cities or areas.
Table 14-40. Characteristics of Current in Various
Countries
Country Type of
CurrentPhases Voltage #
WiresAfghanistan ac 60 1,3 220/380 2,4
Algiers ac 50 1,3 127/220
220/3802,4American Samoa ac 60 1,3 120/240
240/4802,3,4Angola ac 50 1,3 220/380 2,4
Antiquary ac 60 1,3 230/400 2,3,4
Argentina ac 50 1,3 220/380 2,4
Aruba ac 60 1 115/230 2,3
Australia ac 50 1,3 240/415 2,3,4
Austria ac 50 1,3 220/380 3,5
Azores ac 50 1,3 220/380 2,3,4
Bahamas ac 60 1,3 120/240 2,3,4
Bahrain ac 50 1,3 230/400 2,3,4
Balearic Islands ac 50 1,3 127/220 2,3,4
Bangladesh ac 50 1,3 220/440 3,4
Barbados ac 50 1,3 115/230 2,3,4
Belgium ac 50 1,3 220/380 2,3
Belize ac 60 1,3 110/220 2,3,4
Benin ac 50 1,3 220/380 2,4
Bermuda ac 60 1,3 120/240 2,3,4
Bolivia ac 50 1,3 230/400 2,4Botswana ac 50 1,3 231/400 2,4
Brazil ac 60 1,3 127/220 2,3,4
Brunei ac 50 1,3 240/415 2,4
Bulgaria ac 50 1,3 220/380 2,4
Burkina Faso ac 50 1,3 220/380 2,4
Burma ac 50 1,3 230/400 2,4
Burundi ac 50 1,3 220/380 2,4
Cambodia ac 50 1,3 120/208 2,4
Cameroon ac 50 1,3 230/400 2,4
Canada ac 60 1,3 120/240 3,4
Canary Islands ac 50 1,3 127/220 2,3,4
Cape Verde ac 50 1,3 220/380 2,3,4
Cayman Islands ac 60 1,3 120/240 2,3
Central African Republic ac 50 1,3 220/380 2,4
Chad ac 50 1,3 220/380 2,4
Channel Island ac 50 1,3 240/415 2,4
Chile ac 50 1,3 220/380 2,3,4
China ac 50 1,3 220/380 3,4
Columbia ac 60 1,3 110/220 2,3,4
Comoros ac 50 1,3 220/380 2,4
Congo ac 50 1,3 220/380 2,4
Costa Rica ac 60 1,3 120/240 2,3,4
Cote d’lvoire ac 50 1,3 220/380 3,4
Cyprus ac 50 1,3 240/415 2,4
Czechoslovakia ac 50 1,3 220/380 2,3,4
Denmark ac 50 1,3 220/380 2,3,4
Djibouti, Rep. ac 50 1,3 220/380 2,4
Dominica ac 50 1,3 230/400 2,4
Dominican Republic ac 60 1,3 110/220 2,3
Ecuador ac 60 1,3 120/208 2,3,4
Egypt ac 50 1,3 220/380 2,3,4
El Salvador ac 60 1,3 115/230 2,3
England ac 50 1 240/480 2,3
Equatorial Guinea ac 50 1 220 2
Ethiopia ac 50 1,3 220/380 2,4
Faeroe Islands ac 50 1,3 220/380 2,3,4
Fiji ac 50 1,3 240/415 2,3,4
Finland ac 50 1,3 220/380 2,4,5
France ac 50 1,3 220/380
115/2302,4French Guiana ac 50 1,3 220/380 2,3,4
Gabon ac 50 1,3 220/380 2,4
Gambia, The ac 50 1,3 220/380 2,4Table 14-40. Characteristics of Current in Various
Countries (Continued)
Country Type of
CurrentPhases Voltage #
Wires