Rules for the technical operation of consumer electrical installations (PTE). Schemes, articles of the Free Technical Library

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Rules for the technical operation of consumer electrical installations (PTE)

Free library / Schemes of radio-electronic and electrical devices

Rules for the technical operation of consumer electrical installations (PTE)

We recommend reading in our Free Technical Library:

Radio station on three transistors

Section Civil radio communications. The radio station is designed for two-way communication in the range of 27 MHz with amplitude modulation. It is assembled according to the transceiver scheme. The cascade on the transistor VT1 serves as both a receiver and a transmitter. The amplifier on transistors VT1 and VT2 in the receive mode amplifies the signal allocated by the receiver, and in the transmit mode it modulates the carrier ... >>

Pager for security

Section Security devices and signaling of objects. Vehicle security is a very urgent problem, despite the large number of anti-theft devices on the market. The operation of the sound alarm on the car does not give the owner practically any advantages compared to cars without an alarm: the surrounding people usually do not react to the howling of the siren, and the owner is far enough away. The way out is to use a radio channel and transmit an alarm signal to the owner without unnecessary noise. The advantage of this signaling method is that the hijacker is unaware of the transmitter in the car, and it is possible to find the stolen car using a directional antenna. To receive a signal from the security system, you can use a converted pager, which, with the ubiquity of mobile phones, is increasingly turning into an idle toy. ... >>

Making a wire fuse for any current

Section Ham Radio Technologies. The most common are fuses. They are cheap and easy to manufacture and in the event of a short circuit in the network, they protect the wiring from fire. When a fuse blows, it needs to be replaced quickly. There is not always a spare fuse for the required current. The easiest way is to make a protective fuse from a wire of the appropriate diameter. Moreover, the diameter of the wire for the required melting current (protection) can be selected from the table, which shows the values for different metals. As a basis for fixing (soldering) a fuse-link, the frame of a burnt-out ... >>

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Rules for the technical operation of consumer electrical installations (PTE)

All articles of the Rules for the technical operation of consumer electrical installations (PTE): 115 articles

Section 1. Organization and operation of electrical installations

Section 2. Electrical equipment and electrical installations for general purposes

Section 3. Electrical installations for special purposes

Appendix 1

An example of a sample statement of obligation to assign the duties of a person responsible for electrical facilities

Appendix 2

Approximate procedure for technical diagnostics of electrical installations of consumers

Annex 3. Standards for testing electrical equipment and apparatus for electrical installations of consumers

Appendix 4

Permissible increase in the voltage of the industrial frequency of the equipment during operational switching and emergency operations

Appendix 5. Characteristics of explosion-proof connections of explosion-proof equipment

Rules for the protection of electrical networks

All articles for an electrician

Regulatory documentation for an electrician

Latest news of science and technology, new electronics:

Artificial leather for touch emulation 15.04.2024

In a modern technology world where distance is becoming increasingly commonplace, maintaining connection and a sense of closeness is important. Recent developments in artificial skin by German scientists from Saarland University represent a new era in virtual interactions. German researchers from Saarland University have developed ultra-thin films that can transmit the sensation of touch over a distance. This cutting-edge technology provides new opportunities for virtual communication, especially for those who find themselves far from their loved ones. The ultra-thin films developed by the researchers, just 50 micrometers thick, can be integrated into textiles and worn like a second skin. These films act as sensors that recognize tactile signals from mom or dad, and as actuators that transmit these movements to the baby. Parents' touch to the fabric activates sensors that react to pressure and deform the ultra-thin film. This ... >>

Petgugu Global cat litter 15.04.2024

Taking care of pets can often be a challenge, especially when it comes to keeping your home clean. A new interesting solution from the Petgugu Global startup has been presented, which will make life easier for cat owners and help them keep their home perfectly clean and tidy. Startup Petgugu Global has unveiled a unique cat toilet that can automatically flush feces, keeping your home clean and fresh. This innovative device is equipped with various smart sensors that monitor your pet's toilet activity and activate to automatically clean after use. The device connects to the sewer system and ensures efficient waste removal without the need for intervention from the owner. Additionally, the toilet has a large flushable storage capacity, making it ideal for multi-cat households. The Petgugu cat litter bowl is designed for use with water-soluble litters and offers a range of additional ... >>

The attractiveness of caring men 14.04.2024

The stereotype that women prefer "bad boys" has long been widespread. However, recent research conducted by British scientists from Monash University offers a new perspective on this issue. They looked at how women responded to men's emotional responsibility and willingness to help others. The study's findings could change our understanding of what makes men attractive to women. A study conducted by scientists from Monash University leads to new findings about men's attractiveness to women. In the experiment, women were shown photographs of men with brief stories about their behavior in various situations, including their reaction to an encounter with a homeless person. Some of the men ignored the homeless man, while others helped him, such as buying him food. A study found that men who showed empathy and kindness were more attractive to women compared to men who showed empathy and kindness. ... >>

Random news from the Archive

How Lunokhod-1 was found 25.04.2010

"Lunokhod-1" lost many years ago on the surface of the Moon has finally been found!

Lunokhod 1 disappeared from radar screens on September 14, 1971, almost a year after it was delivered to the Moon. And this greatly upset the scientists: a French reflector was installed on it, with the help of which, by reflecting a laser beam, physicists hope to measure the distance to the Moon with an accuracy of a millimeter (such accuracy is needed to search for deviations from Einstein's theory of relativity).

Since then, four reflectors have remained at their disposal - three were brought by Apollos -11, 14 and 15, and the fourth is on Lunokhod-2. This last one is badly oriented, so it is difficult to use it. And to achieve the required accuracy, five reflectors are required: three for determining the coordinates, one for accounting for tidal forces, and one more for control. And in April 2010, the American satellite "Lunar Reconnaissance Orbiter" examined a luminous spot on the surface of the Moon a few kilometers from the place where everyone was looking for "Lunokhod-1".

On April 22, scientists from the group of Tom Murphy, a professor at the University of California at San Diego, aimed a laser at the speck and received a return signal. A repeated experiment, carried out 30 minutes later, made it possible to calculate the coordinates of Lunokhod-1 with an accuracy of ten meters. Now he's back in action.

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