Basic and additional electrical protective equipment in electrical installations up to 1000 volts. List of protective equipment and their scope.
Electricity and Security
Decipherment of degree of protection IP in accordance with GOST 14254-2015. How is IP decrypted on luminaires and electrical equipment? Table of values of degrees of protection.
The flow of electric current through the human body is dangerous to health and life. In this article, we will consider why current kills and why high voltage is dangerous.
High-voltage power lines in one way or another affect our health, plants and animals, communication technology, etc. But what exactly is the harm from power lines, read the article.
In simple words, we will consider how to protect yourself from electric shock when using direct and indirect touch in everyday life and at work. Basic measures and remedies.
What rules do PUEs violate most often and how to do it right, without violations. Responsibility for violation of electrical installation rules.
What is an existing electrical installation in accordance with the rules of PTEEP and MPBEE. Definition of the concept and examples of the correct answer to the question in different situations.
What protective means are completing electrical installations with voltage up to 1000 V and higher. Overview of KSZ-1 and KSZ-2 kits that comply with the regulations.
What is the maximum current protection, what is its principle of operation and purpose. Types and schemes of maximum current protection (MTZ). Unlike current cutoff.
What is the bounce of contacts, what are the causes of this phenomenon and why is it dangerous. Software and hardware methods for suppressing contact bounce.
Why arcing of contacts of relays, circuit breakers and magnetic starters occurs. Ways to eliminate and prevent sparking of the contact system.
Why did the phase disappear in the socket, switch or on the chandelier. The reasons for the situation when there is no phase in a single-phase or three-phase network.
What to do if appliances burned out due to a power surge in an apartment or house. Where to contact in case of emergency and how to recover damage.
Why do I need current protection of the zero sequence and what is its principle of operation. Where TZNP is applied in practice. Detailed explanation on the video.
Why is zero heated in the wiring. What to do if the zero wire is heated in the shield, in the socket or on the opening machine. Is heating zero dangerous?
What classes of protection against electric shock exist in accordance with GOST 12.2.007.0-75. What is the protection of electrical appliances from electric shock.
What is interfacial circuit and what are the causes of its occurrence. Methods of protection against phase-to-phase faults on a high-voltage power line.
Not sure why birds aren’t shocked by wires? The article reveals the reasons for the safe location of birds on power lines, as well as situations when the bird is shocked.
Why does contact heating occur and what can this lead to. Ways to eliminate the heating of contact joints in sockets, on machines, etc.
What is touch voltage and how dangerous is it. Methods for calculating and measuring touch voltage. Norms that should not be exceeded.
The device, the principle of operation and the purpose of the surge protector. Where is the surge protector used and why is it necessary to use this device.
How to protect children from electric shock. How to protect a child from electricity in the house and on the street. Options for protecting outlets from children.
Where to call if a tree fell on wires? Who is to blame for this and what is the penalty for breaking power line wires. Danger of touching branches to wires.
Overview of the Neptun ProW + Wi-Fi module. The functionality of the Neptune water leakage protection system. Than Neptun ProW + Wi-Fi system is better than analogues.
The main causes of fire wiring in the apartment and the rules for its safe extinguishing. Methods of protection against fire during ignition of electrical wiring.
The main types of briefings on labor protection, the procedure and timing of their conduct. Who and how often conducts health and safety briefings.
Electric current makes human life simpler and more comfortable, but at the same time it is a great danger. Every novice electrician must be sure to know the safety measures when electrical work at home. In this section, we consider how to independently identify typical wiring malfunctions and eliminate them.
The main dangerous situations associated with electricity in the house are: the presence of two phases in the outlet, a broken wire in the network, the occurrence of a short circuit, etc. Thanks to our helpful tips, you can repair wiring in a timely and safe manner with minimum set of tools for an electrician.
We recommend that you carefully read all the articles provided, as well as view the video tutorials that are in each entry. This will ensure safety when working and handling electricity in the home.