Electricity

Electrical installation work in a private house or apartment is quite complex and time-consuming. However, a skilled and experienced professional who is familiar with the specifics of the work can quickly perform measurements and calculations. Measurements are carried out based on the house plan, where all connection points are indicated, and, of course, taking into account your preferences and requirements. Electrical installation work is professionally performed by qualified electricians who ensure the uninterrupted and safe operation of the electrical system in the apartment.

If you intend to carry out all the calculations yourself, have all the necessary tools at hand, or simply want to supervise the work, you can familiarize yourself with the specifics of electrical installation step by step.

The work consists of several main stages:

• Choosing the installation method (open or concealed)
• Drawing the wiring diagram
• Marking and layout work
• Selecting the components
• Electrical installation work
• Obtaining permission to connect to the electrical grid

When drawing up the electrical wiring diagram for an apartment, the following requirements and recommendations should be taken into account:

• Wires should run along walls and ceilings only vertically and horizontally. The location of the electrical wiring must be clearly indicated on the diagram.
• Bends should be made at right angles. It is also possible to run electrical wires along the floor, protecting them with corrugated conduit.
• When installing exposed or concealed electrical wiring, make sure that it does not come into contact with metal parts.
• Wires should be installed at a distance of 20 cm from the ceiling.
• Wires should run straight from top to bottom and connect to switches, while wires leading to sockets should run from bottom to top.
• Wires should run at a distance of 10 cm from door and window openings.
• Switches should be installed 80–90 cm above the floor and next to the door handle. They should be positioned so that an open door does not obstruct the switch. If the door opens to the right, the switches should be installed on the left side, and vice versa.
• Sockets should be installed 20–90 cm above the floor. In the kitchen, sockets should be installed 10 cm above the kitchen countertop.
• Sockets should be installed at least 50 cm away from gas and electric stoves, radiators, and pipes.
• It is not recommended to install switches and sockets in areas where humidity is higher than normal.
• The main elements of the electrical wiring system — junction boxes, meters, sockets, and switches — should be easily accessible.
• In rooms, there should be one socket for every 6 sq. m. The kitchen is an exception. There should be as many sockets as necessary for connecting household appliances.
• Installing wiring in the bathroom is prohibited. In bathrooms, the wiring for sockets should be run through corrugated conduit.
• When several parallel wires are installed, the distance between them should be at least 3 mm, or the wires should have a protective layer.
• Wire distribution and connections are carried out inside special junction boxes. Connections must be carefully insulated.

How to Distribute Electricity Evenly in Each Room

A private house or apartment necessarily contains household appliances and engineering equipment that consume large amounts of electricity. Such appliances are commonly referred to as loads. Even distribution of electricity in an apartment helps ensure efficient use of electricity. Varpet's skilled electricians are ready to properly distribute the electrical load in your apartment, ensuring optimal and uninterrupted use of electricity throughout the entire space.

Using a large number of electrical appliances in an apartment — washing machines, air conditioners, boilers, audio and video equipment, and others — increases the load on the electrical wiring. Most electrical appliances, including electric stoves, refrigerators, microwave ovens, dishwashers, electric kettles, and many other devices, are used in the kitchen and consume large amounts of electricity.

To distribute electricity evenly and ensure safety during operation, electrical wires are divided into groups. This method allows you to control the power supply to individual appliances or rooms. Electricity distribution is also convenient when carrying out repair work, as you can disconnect any power supply group.

Distribution of Electricity Among Power Consumption Sources

• Large household appliances that are considered high-power consumers should be connected separately through automatic circuit breakers. Such high-power consumers include electric stoves, electric kettles, water heaters, air conditioners, and washing machines.
• For each room — living room, bedroom, office — it is recommended to install a separate junction box or automatic circuit breaker.
• The kitchen is the most heavily loaded area of an apartment, where sockets should also be installed separately.
• The lighting system should be installed as an individual circuit; whenever possible, it is better to connect the lighting of each room to a separate automatic circuit breaker.
• The bathroom power supply, which is considered one of the most dangerous points in terms of electrical safety due to high humidity, should also be connected as a separate group.

Before dividing the wires into groups, it is necessary to create a floor plan of the room clearly indicating the locations of all sockets, high-power household appliances, lamps, and switches. This diagram will later help immediately identify the damaged group and carry out repairs.

Read also: Socket: What You Need to Know About Its Installation

The choice of electrical wiring installation method in an apartment should be approached thoughtfully and carefully, as the safe and uninterrupted operation of the entire circuit depends on it. There are three types of electricity distribution:

Installation Methods and Their Complexities

Properly creating a diagram for electricity distribution and cable installation in an apartment requires specific knowledge. If you lack the necessary knowledge and skills, we do not recommend undertaking such a complex task, as your attempts may lead to unpredictable consequences. Additional difficulties may arise if there is no installation diagram or if changes have been made after the original diagram was created but were not recorded on it. Entrust all electrical work in your apartment to a professional Varpet electrician, who will quickly and efficiently not only prepare a detailed plan taking into account all the features of the apartment, but also repair any faults or replace old electrical wiring when necessary.

Installing electrical wiring in a new house or replacing old cables can be done in two ways: open and concealed. The choice, of course, depends on your preference, but there are certain aspects that may influence it.

First of all, there is the appearance of the electrical wiring. When it comes to residential spaces, this aspect becomes especially important. Concealed wiring is called concealed because almost all of its elements are hidden. With open electrical wiring installation, regardless of the technology used, all elements remain visible.

From the perspective of installation complexity, open wiring has an undeniable advantage. It can be easily installed on any surface, and in the event of cable damage, extensive repairs may not be required. Installing concealed electrical wiring is a fairly labor-intensive process and requires subsequent renovation of the space.

Depending on the type of surface — fire-resistant or non-fire-resistant — installation requirements may vary. Concealed electrical wiring does not require additional materials that could affect the final cost.

Open Electrical Wiring Installation

• Open electrical wiring involves installing cables on structural surfaces such as walls, ceilings, and others. Wires are installed using junction boxes, insulators, conduits, metal fasteners, and other means.
• When installing open wiring, it is important to use special additional support wires that prevent the cables from moving or sagging.
• With open wiring, it is also possible to run the cables along or inside a baseboard. Even wiring concealed inside a baseboard is considered open installation. In this case, the baseboard acts as a protective box that protects the wires from mechanical damage. If this type of installation is selected, it is important that the baseboard is fire-resistant.

Concealed Electrical Wiring Installation

• Concealed installation refers to a method in which electrical wires are installed inside the structural elements of a building. This is done according to a clearly defined diagram, followed by plastering.
• In addition, this method includes installing electrical wires beneath the floor covering of a panel building. In this case, conduits are used to provide additional protection for the wires.
• Installing electrical wiring beneath suspended ceilings is also considered concealed installation. In this case, specific rules must be followed: the flammability of the suspended ceiling surface must be taken into account. If it is not fire-resistant, the wires must be protected with a metal layer or conduits. If the surface is fire-resistant, the wires can be run through plastic conduits.

Combined Electrical Installation Method

This method combines the two previous methods. Despite its ease of installation, it is necessary to follow the rules below to avoid difficulties in the future.

• The best option is to create pathways through the wall and install fire-resistant wires.
• Make sure that the wires inside the wall pass without obstruction and do not touch each other. The conduit through which high-power and low-power electrical wires pass should have several sections.
• Unlike the previous two types, combined installation can also be carried out diagonally.

Installation of an Automatic Circuit Breaker

Installing and replacing automatic circuit breakers is one of the main tasks performed by electricians when repairing and replacing electrical wiring. Installing automatic circuit breakers together with differential circuit breakers and RCDs (residual-current devices) ensures proper operation of the electrical system and protects circuits from short circuits and overloads.

When installing automatic circuit breakers, electricians follow specific requirements for connecting them to electrical networks, taking into account the current power consumed by devices connected to the group circuit, cable cross-sections, the capabilities of the electrical networks, and other factors.

Safety: Voltage Fluctuations — Consequences — Proper Use

If electrical installation is carried out by an unqualified person, a number of problems may arise. In addition, regardless of the quality of the installation, voltage fluctuations are one of the main electrical problems. They can cause bulbs to burn out, household appliances to malfunction, and even create fire hazards in the apartment's electrical wiring.

Almost every modern apartment has many sources of energy consumption. Of course, they are designed to make life more convenient, but at the same time, they significantly increase electricity consumption. The electrical grid is not always able to handle such a load, which can lead to voltage fluctuations.

To protect against voltage fluctuations, it is necessary to follow a number of rules. The best way to protect appliances from overvoltage is to entrust the complete renovation of the electrical supply system and its subsequent maintenance to experienced professionals. However, it is not always possible to carry out such large-scale work.

The following devices are used to improve the safety of household appliances and minimize the risk of damage caused by overvoltage:

• Voltage monitoring relay (RKN): This is a small device whose purpose is to disconnect the circuit during voltage fluctuations and restore the power supply once the network parameters have stabilized.
• High-voltage sensor (DPN): This device should be installed in the network together with an automatic circuit breaker. When the device detects a violation of the network parameters, it causes a current leakage, which is detected by the automatic circuit breaker (RCD), disconnecting the network from the power supply.
• Stabilizer: In areas where continuous protection from voltage fluctuations is required, a stabilizer should be installed. When connected to the network, this device adjusts the output voltage to the required level regardless of the quality of the incoming power supply.

Electrical installation work should not be entrusted to an inexperienced person or beginner, as your safety and the uninterrupted operation of your equipment depend on properly performed work. Entrust your electrical installation work to Varpet's skilled electricians, who will provide consultation, perform measurements, and carry out installation work. Download the Varpet app, and with just one tap, an experienced electrician will visit you.