Construction And Repair

Capacitive resistance in an alternating current circuit: basic concepts, formula for calculation

Capacitive resistance in an alternating current circuit: basic concepts, formula for calculationConstruction And Repair

The capacitor has a certain resistance to alternating current and does not conduct direct current at all. This property finds application in various fields of electronics and electrical engineering...

Read More
How to calculate resistance: parallel, series and combined circuit

How to calculate resistance: parallel, series and combined circuitConstruction And Repair

Solving problems in the field of electronics and electrical, you have to deal with various calculations. Most often they are associated with the simplification of electrical circuits. For this, the...

Read More
Impedance: general information, dependence on other quantities and calculation formulas

Impedance: general information, dependence on other quantities and calculation formulasConstruction And Repair

Any substance, being in various states, has a certain resistance. In some cases, it becomes necessary to calculate the impedance of a circuit or a specific section. In such a situation, you should ...

Read More
Soil resistivity: table of average values ​​and application for various purposes

Soil resistivity: table of average values ​​and application for various purposesConstruction And Repair

The physicochemical features of the upper layers of the earth, where the currents of electrical installations flow, affect the state of underground metal structures. When designing and installing p...

Read More
Insulation resistance measurements and regulatory documents: characteristics of dielectrics, testing

Insulation resistance measurements and regulatory documents: characteristics of dielectrics, testingConstruction And Repair

Operation of the electrical network is impossible without the use of cables. The wires used are characterized by various parameters, one of which is insulation. Over time, this parameter deteriorat...

Read More
Reactive resistance: formation of electrical resistance

Reactive resistance: formation of electrical resistanceConstruction And Repair

In electrical engineering, active and reactive resistance is usually called a value that characterizes the reaction force section of the electric circuit directed (ordered) movement of particles or...

Read More
Copper resistivity: how the value is measured, calculation formulas, indicators for iron and aluminum

Copper resistivity: how the value is measured, calculation formulas, indicators for iron and aluminumConstruction And Repair

Each substance is capable of conducting current to a different degree, this value is influenced by the resistance of the material. The resistivity of copper, aluminum, steel and any other element i...

Read More
Measurement of cable insulation resistance: features, principle of operation of the megohmmeter

Measurement of cable insulation resistance: features, principle of operation of the megohmmeterConstruction And Repair

Today, human life is very uncomfortable without electrical appliances. And all devices, as you know, are powered by electrical networks. In order for the devices to work perfectly, they must measur...

Read More
Power limiter: features of connecting a single-phase and three-phase device, ohm-110 and ohm-310

Power limiter: features of connecting a single-phase and three-phase device, ohm-110 and ohm-310Construction And Repair

Situations when, due to the lack of capacity of city power grids, it has to be limited at some facilities, are quite common. You can solve this problem using a power limiter. As soon as the set par...

Read More
Instructions for DT 838: how to use a digital multimeter at home, its device

Instructions for DT 838: how to use a digital multimeter at home, its deviceConstruction And Repair

Long gone are the days when measuring instruments could only be found in physics class at school or from electrical specialists. These were mainly voltmeters - rather bulky units with a large perce...

Read More