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ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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Section 4. Switchgears and substations

Switchgear with voltage up to 1 kV AC and up to 1,5 kV DC. Foreword

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Encyclopedia of radio electronics and electrical engineering / Rules for the installation of electrical installations (PUE)

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Developed taking into account the requirements of state standards, building codes and regulations, recommendations of scientific and technical councils for reviewing draft chapters. Draft chapters were reviewed by the working groups of the Coordination Council for the revision of the EMP

Prepared by JSC "Institute Teploelektroproekt".

Agreed in accordance with the established procedure with the Gosstroy of Russia, Gosgortekhnadzor of Russia, RAO "UES of Russia" (JSC "VNIIE")

Approved by the Ministry of Energy of Russia, order of June 20, 2003 N 242

The requirements of the Electrical Installation Rules are mandatory for all organizations, regardless of ownership and organizational and legal forms, as well as for individuals engaged in entrepreneurial activities without forming a legal entity

From November 1, 2003, Ch. 4.1 Electrical Installation Rules, sixth edition

See other articles Section Rules for the installation of electrical installations (PUE).

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Microcontrollers STM32 Value Line 31.05.2010

STMicroelectronics, one of the leading manufacturers of microcontrollers in the world, announced the start of production of a new 32-bit low-cost microcontroller that takes advantage of the industrial STM32 core and is designed for low-cost applications.

Microcontrollers of the STM32F100 ("Value line") family are intended for applications where the power of a 16-bit microcontroller is already insufficient, and the rich set of functionality of conventional 32-bit microcontrollers is redundant. The STM32F100 microcontroller line is based on a modern 24 MHz ARM Cortex-M3 core with peripherals optimized for use in typical applications where 16-bit microcontrollers were used.

The performance of this line at 24 MHz, coupled with zero latency access to the built-in flash memory, is 30 DMIPS, which is superior to most 16-bit microcontrollers. The line includes the following peripherals - up to 12 16-bit timers with advanced functions, high-speed 12-bit ADCs and DACs, CEC (Consumer Electronics Control) protocol included in the HDMI standard.

STM32F100 is not only a cheap and optimized Cortex-M3 microcontroller, but also access to a rich development environment for STM32 family microcontrollers, which includes free libraries for all peripherals, motor control and touch keyboards.

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