Measurements of electrical quantities. Application area

Free technical library

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

Section 1 General Rules

Measurements of electrical quantities. Application area

Free technical library

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

Comments on the article

1.6.1. real chapter¹⁾ The Rules apply to measurements of electrical quantities carried out using stationary means (indicating, registering, fixing, etc.).

The Rules do not apply to laboratory measurements and to measurements carried out using portable instruments.

Measurements of non-electric quantities, as well as measurements of other electrical quantities not regulated by the Rules, required in connection with the peculiarities of the technological process or the main equipment, are performed on the basis of the relevant regulatory documents.

1. Approved by the Main Technical Administration and Gosenergonadzor of the USSR Ministry of Energy on May 13, 1976.

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:

A New Way to Control and Manipulate Optical Signals 05.05.2024

The modern world of science and technology is developing rapidly, and every day new methods and technologies appear that open up new prospects for us in various fields. One such innovation is the development by German scientists of a new way to control optical signals, which could lead to significant progress in the field of photonics. Recent research has allowed German scientists to create a tunable waveplate inside a fused silica waveguide. This method, based on the use of a liquid crystal layer, allows one to effectively change the polarization of light passing through a waveguide. This technological breakthrough opens up new prospects for the development of compact and efficient photonic devices capable of processing large volumes of data. The electro-optical control of polarization provided by the new method could provide the basis for a new class of integrated photonic devices. This opens up great opportunities for ... >>

Primium Seneca keyboard 05.05.2024

Keyboards are an integral part of our daily computer work. However, one of the main problems that users face is noise, especially in the case of premium models. But with the new Seneca keyboard from Norbauer & Co, that may change. Seneca is not just a keyboard, it is the result of five years of development work to create the ideal device. Every aspect of this keyboard, from acoustic properties to mechanical characteristics, has been carefully considered and balanced. One of the key features of Seneca is its silent stabilizers, which solve the noise problem common to many keyboards. In addition, the keyboard supports various key widths, making it convenient for any user. Although Seneca is not yet available for purchase, it is scheduled for release in late summer. Norbauer & Co's Seneca represents new standards in keyboard design. Her ... >>

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. ... >>

Random news from the Archive

CRT monitors will disappear faster than expected 27.08.2005

LCD monitors continue to confidently replace CRT devices in the global market, according to new data from analysts. And this is happening even faster than previously thought.

To date, LCD monitors with diagonals of 15, 17 and 19 inches are the most popular, but larger models are gradually gaining popularity. The global PC LCD market grew 1% qoq to 7 million units in the first quarter of this year, in line with analysts' forecasts, according to a new study by DisplaySearch.

Compared to the same period in 2004, the market grew by 44% in quantitative terms. The rise in price of LCD panels is already beginning to affect the retail price of LCD monitors for the consumer market (this segment is currently on the rise). This usually leads to a slowdown in the growth of the LCD market, especially during periods of seasonal decline in demand.

However, DisplaySearch claims that if all planned LCD panel capacities are put into production, retail price increases will not last long, allowing the market to grow until the end of 2005.

Other interesting news:

▪ Fish fillet from a 3D printer

▪ Cotton against cancer

▪ Coworking spaces can negatively impact creativity

▪ Three types of people

▪ Bitterness along the Great Silk Road

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ site section Power supplies. Article selection

▪ article Polaroid camera. History of invention and production

▪ article What prediction of the oracle became disastrous for the king, who did not understand its meaning? Detailed answer

▪ article Self-insurance and self-detention when moving in mountainous areas. Travel Tips

▪ article Cement for pottery. Simple recipes and tips

▪ article About a paper pan, a slave with a fan and injections. physical experiment

Leave your comment on this article:

All languages of this page

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