Why are there power surges in the network and how to deal with them?
What to do if tension jumps in an apartment or house? The main causes of voltage drops in the network. Where to complain to solve the problem.
Power supply
Please specify the section:
High voltage equipment
Electricity of the net
Electricity and Security
Electric laboratory
What voltage deviation in the network is considered the maximum permissible
Permissible and maximum deviation of voltage in the network according to GOST. The effect of voltage deviation on the operation of electrical equipment. Ways to solve the problem.
What is a load switch and why is it needed?
The device, principle of operation and purpose of the load switch. Find out what the load breaker consists of, how it works and why you need it.
What are the obstacles in the electrical network and how to protect yourself from them
What are the interferences in the power network and how to get rid of them. The main causes of interference in the network and methods of protection against this phenomenon.
Test Methods for Transformer Oil
Find out how transformer oil is tested. An overview of the main types of tests, as well as methods for analyzing the physical and electrical properties of oil.
What is an air circuit breaker?
The device, principle of operation and purpose of the automatic air circuit breaker. Find out how the air circuit breaker works and why it is needed.
What is the danger of phase imbalance in a three-phase network and when does it occur?
What is phase imbalance and why is it dangerous? The causes of phase imbalance in a three-phase network and possible consequences. Protective measures against this dangerous phenomenon.
Faults in electrical installations and their causes
Abnormal operating conditions and damage in electrical installations. The causes of malfunctions in electrical installations and how to prevent them.
What is overvoltage in the mains and what is it dangerous?
What is a surge in the network and what are the causes of its occurrence. Danger of overvoltage, consequences and protective measures against this phenomenon.
How to measure cable insulation resistance?
Method for measuring cable insulation resistance. Frequency of measurements. How to measure the insulation resistance of a cable line and who should do it.
What is a gas-insulated switch and why is it needed?
The device, the principle of operation and the appointment of gas-insulated switches.Advantages and disadvantages of SF6 circuit breakers, as well as the scope.
What is an insulating rod and what is it for?
What is an insulating rod and where is it used. Rules for using devices, as well as testing technology for insulating rods.
How to protect the cable from mechanical damage?
Ways to protect the cable from mechanical damage. PUE requirements for protective equipment. Technology laying signal tape, bricks and slabs.
Dielectric guard panels
Overview of dielectric shield fencing used in electrical installations. Requirements for electrical insulation boards, rules for checking and using fences.
What are the required dielectric gloves for and how are they tested?
What are dielectric gloves and what are they for. Appointment of electrical protective gloves, rules of use and test procedure.
Why are there power surges in the network and how to deal with them?
What to do if tension jumps in an apartment or house? The main causes of voltage drops in the network. Where to complain to solve the problem.
What is induced voltage and why is it dangerous?
What is induced voltage and what is the danger of this phenomenon? Protection measures against interference in the apartment and on the overhead line. The causes of induced voltage.
Processing of cable lines with flame retardant
What is fire retardant coating of cables for? What types of fire protection of cable lines exist. The procedure for processing cables with flame retardant.
Finding a Cable Damage - Overview of Techniques
Search for cable damage in the ground, concrete wall, under drywall. How to find cable damage by loop, acoustic, induction and other methods.
What are voltage indicators?
Types of voltage indicators used in everyday life and in production. Rules for using devices, as well as the purpose of each individual type of pointer.
Testing non-linear surge arresters
Test methods for arrester. Measurement of resistance and conduction current of surge arresters. Standards and scope of tests for PUE. Sample protocol filling.
How to test cable lines with high voltage?
Overview of cable test methods for overvoltage. The frequency of testing. Sample protocol for testing cable lines with high voltage.
What voltage deviation in the network is considered the maximum permissible
Permissible and maximum deviation of voltage in the network according to GOST. The effect of voltage deviation on the operation of electrical equipment. Ways to solve the problem.
What is phase rotation and how to check it?
What is phase rotation and how to check it yourself. Methods of checking phase rotation in a three-phase network with the device ФУ 2. Importance of phasing control
10 main causes of electric shock in everyday life
The causes of electric shock and the main measures of protection against it in the home and at work. Rules for the safe handling of electrical appliances.
Protective measures for live work
Safety measures when performing live work. Learn how to protect yourself when working under high voltage on overhead lines, Video safety lesson.
