Wall chipping: a technique for beginners

Construction work, overhaul or reconstruction of premises involves the installation of electrical wiring, which has a certain direction to sockets and switches, internal communication networks. The technology for laying the trunk is carried out in two options - open and hidden, of which the second is the most common. When it is used, deep grooves are created in the wall, the so-called strobes, into which a cable of different diameters is laid and completely hidden. Wall chasing for wiring is carried out in several stages, the first of which begins with the development of a wiring plan.

Tools and devices for performing strobes

In order for the walls to be chipped quickly and at the proper level, the tool should be correctly selected taking into account the working surface in which the furrows will be made. The main power tools and devices are:

• Bulgarian;
• Hammer drill;
• Stroborez;
• Construction vacuum cleaner;
• Chisel and hammer.

It’s worth talking about each power tool separately, which will make it possible to determine the option for a particular case. Basically, it is necessary to perform the gating of a brick wall, concrete, panel. The market presents a huge variety of machine models from different manufacturers. It is not necessary to give preference to expensive power tools, even budget models can not only save the situation, but also last a long time. With their help, you can quickly and efficiently implement the shtrobling of walls for wiring, cable and pipes for sewage.

Manual angle grinder

A grinder is a manual angle grinder. This is the simplest and most affordable tool for wall shredding for wiring, which is most often used by lay people. Instead of a conventional disc, special cutting elements are installed on the grinder, characterized by high strength. For such work, diamond blades are best suited, the thickness of which corresponds to the parameters of the strobe.

Creating a channel of greater width is carried out in two steps with the laying of an identical furrow in parallel. The distance between them should not be less than 5 mm. The resulting gap is knocked out using a punch.

The concrete walls are chipped with powerful machines, so the power rating should exceed 500 V. High-quality disks are mandatory. It is very important to observe safety precautions, since manual grinder is not provided to perform this type of work.

The main disadvantage of a manual angle grinder is the large amount of dust, which creates certain inconveniences during operation.

Hammer drill

With a puncher, you can perform gouging of concrete walls, but in this case, additional nozzles are provided:

• "Shovel." With this nozzle, a narrow and elongated groove identical to the shape of the strobe can be hollowed out.
• The “bayonet” that marks the grooves, and the “spatula” enlarges to the desired width.
• A drill with a diameter of 6 to 10 mm. The work of the tool is performed in the hammer drill mode.

The disadvantages of using a rotary hammer are a lot of dust and noise. It is very difficult to make accurate edges with such a tool, and the depth of the strobe turns out to be uneven, which entails additional processing of the channel and time costs.

Stroborez

A specialized tool allows you to make walls with your own hands. Due to the presence of a tap on the machine body, to which a construction vacuum cleaner or just a bag is connected, there is practically no dust during operation, which creates maximum convenience for use. Shtroborez is the best construction tool, as it makes it easier to punch grooves for cable, electrical wiring, sewer networks, water supply and heating systems. It is convenient for them to perform wall chipping in the bathroom.

The main advantage of the machine is the presence of several diamond blades, the distance between which is adjustable. Such devices reduce the time to create furrows for wiring the desired width. It is advisable to cut the furrows from 3 to 5 mm wide, into which one cable will fit. If several cables are provided in one strobe, then its width should correspond to the total diameter of the laid cables.

Getting started, it is necessary to remove old wallpaper, paint or posters from the surface of the walls so as not to clog the power tool.

Chisel and hammer

Hand tools are relevant only when creating channels of small length and in a plastered surface. When laying wiring in concrete and brick walls, such work is time-consuming and time-consuming.

Features and rules of gating

There are certain rules for gating walls, which are carried out in conjunction. Begin work by drawing up a plan for laying furrows. If necessary, search for previously laid wiring. For search, special tools can be used - a screwdriver-indicator, a metal detector or a detector that determines the location of electrical wiring, fittings, cavities. The plan should accurately indicate the dimensions of the anchor to the floor, ceiling surface or corner of the wall.

The next step involves markup, which is performed in two ways:

1. the line is laid from the switchboard to each room and to the installation site of electrical devices (switches, sockets) or lighting devices;
2. from the place of installation of electrical accessories to a common highway with a conclusion to the switchboard.

It is mandatory to determine the location of large household appliances (refrigerator, washing machine), lamps, regardless of which markup method will be applied. This procedure allows you to connect household appliances directly to the outlet, and not through an extension cord. Such work can be carried out independently without the involvement of specialists. When using a cutting power tool, safety precautions must be observed. Especially carefully should be treated with a grinder, from under the disks of which, apart from dust, fragments of brick or concrete can fly out, therefore, as a precaution, it is necessary to use gloves, protective clothing, a respirator and goggles.

How should the channels be arranged?

The location of the gates should not be at an arbitrary angle. All methods of wall shredding for electrical wiring are performed exclusively in the vertical and horizontal directions, but horizontal wiring is not performed for wall shredding in a panel house and in load-bearing wall structures.

The following parameters must be observed:

• The minimum distance of horizontal furrows from the ceiling should be no more than 150 mm and the maximum - no more than 400 mm.
• The distance between the vertical gates and the door and window openings, the corners of the room should not be less than 100 mm.
• The distance from the gas supply pipes is at least 500 mm.
• The maximum depth of the furrows is 25 mm.

When laying the trunk from the junction box to the switch or socket, a minimum number of turns is provided.

The nuances of creating a strob in the bearing walls

Strobing load-bearing walls has the following features:

• In monolithic structures, furrows are recommended to be deepened by no more than 1/3 of the wall.
• In concrete and panel surfaces, the channel depth should not exceed the thickness of the protective layer with which the reinforcing cage is covered. If reinforcement is located on the route of the trunk, the direction of the strobe path should be changed. Touching the frame, the integrity of the panels is violated, which entails a decrease in the bearing capacity of the building and corrosion of the metal.

Wall chasing under water supply or heating pipes is often carried out in load-bearing structures, but improper actions can lead to undesirable consequences, therefore, when performing such work, safety rules must be observed. A brick wall is best for laying pipes. There is no reinforcement in it, as a result of which the thickness of the channels is not regulated.

Wall chipping under the air conditioner is a mandatory procedure that can only be performed by specialists. Installation of climatic equipment entails the creation of holes in the supporting wall. Difficulties can arise in concrete and panel houses, where the main requirement is the lack of a frame when making a through hole, which after installation remains to be coated with a suitable wall with mortar.

Only knowing all the rules and features of creating furrows that are designed for laying electrical wiring, cable, pipes, under sockets and switches. Strobing load-bearing walls has its own characteristics, which should not be neglected. After finishing all the work, we cover the furrows with a solution.