Protection of electrical networks with voltage up to 1 kV. Scope, definitions

Free technical library

ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
Free library / Encyclopedia of radio electronics and electrical engineering / Electrician

Section 3. Protection and automation

Protection of electrical networks with voltage up to 1 kV. Scope, definitions

Free technical library

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

Comments on the article

3.1.1. This chapter of the Rules applies to the protection of electrical networks up to 1 kV, constructed both inside and outside buildings. Additional requirements for the protection of networks of the specified voltage, caused by the peculiarities of various electrical installations, are given in other chapters of the Rules.

3.1.2. A protection device is a device that automatically turns off the protected electrical circuit during abnormal conditions.

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

Read and write useful comments on this article.

<< Back

Latest news of science and technology, new electronics:

The world's tallest astronomical observatory opened 04.05.2024

Exploring space and its mysteries is a task that attracts the attention of astronomers from all over the world. In the fresh air of the high mountains, far from city light pollution, the stars and planets reveal their secrets with greater clarity. A new page is opening in the history of astronomy with the opening of the world's highest astronomical observatory - the Atacama Observatory of the University of Tokyo. The Atacama Observatory, located at an altitude of 5640 meters above sea level, opens up new opportunities for astronomers in the study of space. This site has become the highest location for a ground-based telescope, providing researchers with a unique tool for studying infrared waves in the Universe. Although the high altitude location provides clearer skies and less interference from the atmosphere, building an observatory on a high mountain poses enormous difficulties and challenges. However, despite the difficulties, the new observatory opens up broad research prospects for astronomers. ... >>

Controlling objects using air currents 04.05.2024

The development of robotics continues to open up new prospects for us in the field of automation and control of various objects. Recently, Finnish scientists presented an innovative approach to controlling humanoid robots using air currents. This method promises to revolutionize the way objects are manipulated and open new horizons in the field of robotics. The idea of controlling objects using air currents is not new, but until recently, implementing such concepts remained a challenge. Finnish researchers have developed an innovative method that allows robots to manipulate objects using special air jets as "air fingers". The air flow control algorithm, developed by a team of specialists, is based on a thorough study of the movement of objects in the air flow. The air jet control system, carried out using special motors, allows you to direct objects without resorting to physical ... >>

Purebred dogs get sick no more often than purebred dogs 03.05.2024

Caring for the health of our pets is an important aspect of the life of every dog owner. However, there is a common assumption that purebred dogs are more susceptible to diseases compared to mixed dogs. New research led by researchers at the Texas School of Veterinary Medicine and Biomedical Sciences brings new perspective to this question. A study conducted by the Dog Aging Project (DAP) of more than 27 companion dogs found that purebred and mixed dogs were generally equally likely to experience various diseases. Although some breeds may be more susceptible to certain diseases, the overall diagnosis rate is virtually the same between both groups. The Dog Aging Project's chief veterinarian, Dr. Keith Creevy, notes that there are several well-known diseases that are more common in certain breeds of dogs, which supports the notion that purebred dogs are more susceptible to disease. ... >>

Random news from the Archive

High speed 16Gbps interface 31.01.2016

THine Electronics, a company specializing in the development of high-speed serial interfaces and LSIs for mixed signal processing, announced the creation of "high-speed interface technology with a bandwidth of 16 Gb / s." As usual in such cases, we are talking about throughput per line.

According to THine, this is the first solution of its kind in the world, suitable for internal connections in 8K TVs and other high-definition equipment. The manufacturer notes that the new technology can be used not only with THine's own V-by-One interface, but also with Fiber Channel 16GFC, PCI Express 4.0 (Gen4) and USB3.1.

The company is confident that the development will find application in PCs, computer centers, industrial electronics, on-board vehicle systems. Samples of integrated circuits that use the new technology should be ready in the first half of 2017. In the meantime, THine began to develop an interface with a bandwidth of 32 Gb / s or more.

Other interesting news:

▪ Pocket DNA Sequencer

▪ Hybrid electric boost

▪ Good cholesterol protects the liver from inflammation

▪ baby cry translator

▪ Long-term use of ibuprofen is dangerous for men

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ site section Preamplifiers. Article selection

▪ Article Shamefully indifferent to good and evil. Popular expression

▪ article Which animals cannot recognize their usual food away from their trees? Detailed answer

▪ article Deputy Head of the Logistics Department for Production Issues. Job description

▪ article Inverter source of welding current. Encyclopedia of radio electronics and electrical engineering

▪ article Electric spark pencil. Encyclopedia of radio electronics and electrical engineering

Leave your comment on this article:

All languages of this page

Home page | Library | Articles | Website map | Site Reviews