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2. Mains electricity by country - Wikipedia

   en.wikipedia.org/wiki/Mains_electricity_by_country

   50 Hz Bahamas: A, B 120 V 208 V 60 Hz Bahrain: G 230 V 400 V 50 Hz Bangladesh: A, C, D, G 220 V 380 V 50 Hz Barbados: A, B 115 V 200 V 50 Hz Belarus: C, F 230 V [11] 400 V 50 Hz Belgium: C, E NBN C 61 112-1: 230 V 400 V 50 Hz Belize: A, B, G 110 V 220 V 190 V 380 V 60 Hz Benin: C, E 220 V 380 V 50 Hz Bermuda: A, B 120 V

3. Switched-mode power supply - Wikipedia

   en.wikipedia.org/wiki/Switched-mode_power_supply

   Size and weight: 0.12 W/cm 3, 88 W/kg [28] Smaller than linear power supply. Compared to linear, a SMPS that is 20 kHz is 1/4, 100–200 kHz is 1/8, and 200 kHz–1 MHz types can be even smaller. [28]: 5–8 A transformer's power handling capacity of given size and weight increases with frequency provided that hysteresis losses can be kept down ...

4. List of interface bit rates - Wikipedia

   en.wikipedia.org/wiki/List_of_interface_bit_rates

   This is a list of interface bit rates, is a measure of information transfer rates, or digital bandwidth capacity, at which digital interfaces in a computer or network can communicate over various kinds of buses and channels.

5. IEC 60320 - Wikipedia

   en.wikipedia.org/wiki/IEC_60320

   A variety of different kinds of IEC 60320 plugs and sockets. IEC 60320 Appliance couplers for household and similar general purposes [1] is a set of standards from the International Electrotechnical Commission (IEC) specifying non-locking connectors for connecting power supply cords to electrical appliances of voltage not exceeding 250 V (a.c.) and rated current not exceeding 16 A. [1 ...

6. NEMA size - Wikipedia

   en.wikipedia.org/wiki/NEMA_size

   Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more

7. Power supply - Wikipedia

   en.wikipedia.org/wiki/Power_supply

   An external power supply, AC adapter or power brick, is a power supply located in the load's AC power cord that plugs into a wall outlet; a wall wart is an external supply integrated with the outlet plug itself. These are popular in consumer electronics because of their safety; the hazardous 120 or 240 volt main current is transformed down to a ...

8. Mains electricity - Wikipedia

   en.wikipedia.org/wiki/Mains_electricity

   A 50 Hz ±5 Hz vibrating-reed mains frequency meter for 220 V The world's first public electricity supply was a water wheel driven system constructed in the small English town of Godalming in 1881. It was an alternating current (AC) system using a Siemens alternator supplying power for both street lights and consumers at two voltages, 250 V for ...

9. Electrical connector - Wikipedia

   en.wikipedia.org/wiki/Electrical_connector

   Sometimes both ends of a cable are terminated with the same gender of connector, as in many Ethernet patch cables. In other applications the two ends are terminated differently, either with male and female of the same connector (as in an extension cord ), or with incompatible connectors, which is sometimes called an adapter cable .