1. Introduction to Global AC Power
50 Hz, V
50 Hz, V
60 Hz, 120 V
50/60 Hz, 100V
50 Hz, V
60 Hz, 110/220 V
60 Hz, 110/220 V

2. Global Power Input Requirements
Know the Market your product is Intended to Serve !
Min Voltage Variation = Nominal +10%/-15%
Min Global Voltage Range: 85 – 264 VAC Note: Many products relax to 100 – 240VAC
Min Frequency Variation = Nominal +/- 3 Hz
Min Global Frequency Range: Hz, Hz Note: Many products use Hz
Plug versions to cover Types A-M
For complete global listing see World Wide Electricity Reference document

3. COUNTRY
VOLTAGE
FREQUENCY
PLUG
COMMENTS
Afghanistan
220V
50 Hz
C & F *
* A UN correspondent reports C and F common in Kabul, but its likely a variety of plugs may be used around the country.  Some sources report Type D also in use.
Albania
220V*
50 Hz
C & F
*Voltage variations common
Algeria
230V
50 Hz
C* & F
*A variation of Type C with a ground post offset about 1/2-inch from center may also be found.
American Samoa
120V
60 Hz
A, B, F & I
Angola
220V
50 Hz C
Anguilla
110V
60Hz
A (maybe B)
Antigua
230V*
60 Hz
A & B
*Airport area is reportedly Antigua power is 110V.
Argentina
220V
50 Hz
C & I*
*Neutral and line wires are reversed from that used in Australia and elsewhere.  Click here for more.
Armenia
220V
50 Hz
C & F
Aruba
127V*
60 Hz
A, B & F
*Lago Colony 115V
Australia
230V*
50 Hz I
*Outlets typically controlled by adjacent switch. Though nominal voltage has been officially changed to 230V, 240V is within tolerances and commonly found. 
Austria
230V
50 Hz
C, F
Azores
220V*
50 Hz
B, C, & F
*Ponta Delgada 110V; to be converted to 220V
For complete global listing see World Wide Electricity Reference document

4. AC Power Quality – Standards
Types A & B
No Standardization, Many Types
Many countries have multiple plug/receptacle types in service

5. AC Power Quality – Standards
                                                                                                                                                                                                                                                          A typical voltage sag
Voltage sags are by far the most common power disturbance

6. Organizations that create power standards
ANSI - American National Standards Institute
IEEE - Institute of Electrical and Electronics Engineers
IEC - International Electrotechnical Commission
NEMA - National Electrical Manufacturers Association
NFPA - National Fire Protection Association
NEC - National Electric Code
US Military
Organizations that create power standards

7. IEEE Power Quality Standards IEEE 1433: Power Quality Definitions
IEEE 519: Harmonic Control in Electrical Power Systems
IEEE 1159 :Monitoring Electric Power Quality
IEEE P1564: Voltage Sag Indices (Prelim)
IEEE P1453: Voltage flicker (Prelim)
IEEE P446: Emergency and standby power
IEEE Power
Quality
Standards

8. IEC Power Quality Standards IEC SC77A: Low frequency EMC Phenomena
SC 77A/WG 1: Harmonics and other low-frequency disturbances
SC 77A/WG 6: Low frequency immunity tests
SC 77A/WG 2: Voltage fluctuations and other low-frequency disturbances
SC 77A/WG 8: Electromagnetic interference related to the network frequency
SC 77A/WG 9: Power Quality measurement methods
SC 77A/PT : Electromagnetic Compatibility (EMC) - Part 3-1: Limits - Overview of emission standards and guides.
IEC Power
Quality
Standards

9. Military Power Quality Stds
MIL-STD-1399: "Interface Standard for Shipboard Systems" covers the design and testing of electric power systems and user equipment. It applies only to shipboard power. The standard is fairly complete, covering Type I, II, and III shipboard power. It provides specifications on sags, interruptions, impulses, unbalance, and harmonics. Last revision: Notice 1, 11 Mar 1992.
MIL-STD-704E: "INTERFACE STANDARD: AIRCRAFT ELECTRIC POWER CHARACTERISTICS" specifications for aircraft power quality, including DC, single-phase, and three-phase systems. It provides specifications on sags, interruptions, impulses, unbalance, and harmonics. Last revision: 1 May 1991.
MIL-M-24116B(SH): "Monitors, Voltage and Frequency, 400 Hz Electric Power" covers trip levels and durations of voltage and frequency monitors. It applies only to shipboard installations.
Last revision: Amendment 1, 29 October 1985.
Military Power
Quality Stds

10. ANSI Related Standards
ANSI C62: Guides and standards on surge protection
ANSI C84.1: Voltage ratings for equipment & power systems
ANSI C57.110: Transformer derating for supplying non-linear loads
ANSI Related
Standards

11. Table of AWGs and approximate corresponding size and current capacity (ampacity)
The following applies to solid wires. Stranded wires are calculated by calculating the equivalent cross-sectional area.
AWG
Diameter
(in)
NEC
Ampacity with 60°C insulation
Diameter
(mm) 1
7.348
0.2893
110 2
6.543
0.2576 95 3
5.827
0.2294 85 4
5.189
0.2043 70 5
4.621
0.1819 6
4.115
0.1620 55
Wire must be treated as any Resistor in terms of voltage drop, power dissipation and thermal rise 7
3.665
0.1443 8
3.264
0.1285 40 9
2.906
0.1144 10
2.588
0.1019 30 11
2.304
0.0907 12
2.052
0.0808 20 13
1.829
0.0720 14
1.628
0.0641 15 15
1.450
0.0571 16
1.291
0.0508 12

12. Applicable Safety Devices
Switches
Thermal 1-Time Metalic Fuses
PTC Auto-Resettable Fuses
PTC Inrush Current Limiters
Thermal and Magnetic Circuit Breakers
EMC Line Filters
Ground Fault Circuit Interrupters

13. AC Power Efficiency – Standards