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ELECTRICAL SAFETY Electrical hazards pose a serious threat to
ELECTRICAL SAFETY Electrical hazards pose a serious threat to

... potential hazards (for example, explosion-proof fixtures, hazardous location classifications, size, voltage, type, etc.).  Ensure grounding of all electrical equipment, including powered hand tools. Equip all electrical equipment with a ground fault circuit interrupter (GFCI) especially in wet envi ...
Grade 9 Science Exam Review
Grade 9 Science Exam Review

... Describe a sex-linked trait and what makes it different from other traits.  Be able to use Punnett Square to identify patterns of sex-linked traits.  Use a pedigree to track sex-linked traits in a family. ...
External Rotor Motors
External Rotor Motors

BCX51/ 52/ 53 Features Mechanical Data
BCX51/ 52/ 53 Features Mechanical Data

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BD9A300MUV

... 1ch Synchronous Buck DC/DC Converter BD9A300MUV  Description BD9A300MUV is a synchronous buck switching regulator with built-in low On-resistance power MOSFETs. It is capable of providing current up to 3A. The SLLMTM control provides excellent efficiency characteristics in light-load conditions whi ...
C400 Snap-action switches
C400 Snap-action switches

... All remote-controlled switches are fitted with a K16 auxiliary used mainly to servo-control the motor, consisting of 3, 6, 9 or 12 electric tiers. It may be mounted: - On the end of the shaft, fitted straight onto the shaft of the electric power assembly, and attached to the rear plate (all ratings) - ...
The Modelling , Simulation and Control of a 50 kW Vertical Axis
The Modelling , Simulation and Control of a 50 kW Vertical Axis

A Low-Power Battery-Free Tag for Body Sensor Networks
A Low-Power Battery-Free Tag for Body Sensor Networks

... sensors, such as microphones, and consists of an 8-bit binary-weighted current digital-analog converter (DAC) that can supply between 0.5 µA and 128 µA. To reduce power consumption, we designed the chip to operate on power supply voltages as low as 0.8 V for the core and 0.5 V for the programmable c ...
Balanced charge carrier mobilities in bulk heterojunction
Balanced charge carrier mobilities in bulk heterojunction

... Taking into account these considerations, effective gate voltage ðVgs  Vth Þ dependant electron mobility of pristine PCBM and hole mobility of pristine P3HT is shown in the inset of the right panel of Fig. 2. In pristine films, electron mobility of PCBM is more than an order of magnitude higher tha ...
Evaluates:  MAX1110/MAX1112 MAX1110 Evaluation System/ Evaluation Kit _______________General Description
Evaluates: MAX1110/MAX1112 MAX1110 Evaluation System/ Evaluation Kit _______________General Description

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... can be added between the filter and the Evaluation Board. Best performance is obtained with 3 to 6dB attenuators (or even a 50Ω termination). It might however be hard to get sufficient signal level into the ADC in such case. Using 1 to 3dB attenuators may be a good tradeoff. The ADC performance is o ...
ADP2102 - Analog Devices
ADP2102 - Analog Devices

... The ADP2102 is a synchronous step-down dc-to-dc converter that converts a 2.7 V to 5.5 V unregulated input voltage to a lower regulated output voltage with up to 95% efficiency and 1% accuracy. The low duty cycle capability of the ADP2102 is ideal for USB applications or 5 V systems that power up su ...
Piezoelectric Sound Components
Piezoelectric Sound Components

... Murata Electronics’ piezoelectric sound components (piezo alarms) are designed for applications requiring a highly reliable acoustic alarm or audible tone signal. Their reliability extends from the fact that they are solid state construction so they have very few moving parts. These devices can prod ...
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... 5V or lower supply is available. The components listed in Table 1 represent a good set of trade-offs among cost, size, and efficiency, while staying within the worstcase specification limits for stress-related parameters such as capacitor ripple current. Do not change the circuit’s switching frequen ...
S0310
S0310

... All speakers shall be designed for a field selectable input of either 25 or 70 VRMS, with selectable power taps from 1/8 watt to 8 watts. All models shall have listed sound output of up to 93 dB at 10 feet and a listed frequency response of 400 to 4000 Hz. The speaker shall also incorporate a sealed ...
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CESO SEMINARS 2002 Insulation Testing and Continuity for
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... potential. Hybrid versions are available with a pn guard ring which enhances the breakdown voltage but increases the junction capacitance to more than 1 pf. A common part is the 1N5711 which has a breakdown voltage of 70 volts and a junction capacity of 2 pf maximum. Passivated diodes constructed wi ...
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Advanced Computer Architecture

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PAM2861 Description Pin Assignments

... Recommended inductor values for the PAM2861 are in the range 33µH to 100µH. Higher values of inductance are recommended at higher supply voltages in order to minimize errors due to switching delays, which in increased ripple and lower efficiency. Higher values of inductance also result in a smaller ...
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AN3119
AN3119

... EVL6563S-250W TM PFC: compliance to EN61000-3-2 standard at 250 W. . . . . . . . . . . 10 EVL6563S-250W TM PFC: compliance to JEITA-MITI standard at 250 W . . . . . . . . . . . . 10 EVL6563S-250W TM PFC: compliance to EN61000-3-2 standard at 70 W. . . . . . . . . . . . 10 EVL6563S-250W TM PFC: compl ...
BU-107: Comparison Table of Secondary Batteries
BU-107: Comparison Table of Secondary Batteries

< 1 ... 793 794 795 796 797 798 799 800 801 ... 1974 >

Mains electricity



Mains electricity is the general-purpose alternating-current (AC) electric power supply. In the US, electric power is referred to by several names including household power, household electricity, house current, powerline, domestic power, wall power, line power, AC power, city power, street power, and grid power.The two principal properties of the electric power supply, voltage and frequency, differ between regions. A voltage of (nominally) 230 V and a frequency of 50 Hz is used in Europe, most of Asia, most of South America and Australia. In North America, the most common combination is 120 V and a frequency of 60 Hz. Other voltages exist, and some countries may have, for example, 230 V but 60 Hz. This is a concern to travelers, since portable appliances designed for one voltage and frequency combination may not operate or may be destroyed by another.The use of different plugs and sockets in different regions provides some protection from accidental use of appliances with incompatible voltage and frequency requirements.
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