Designation of sockets on the schemes

One of the most common elements of a home electrical network is electric outlet. On the diagram, it may look in the form of various designations, which depend on the type and design of this device.

The most important stage in arranging electrical wiring is to draw up a plan for the placement of all its elements. Proper application of all components of the power grid to the electrical circuit ensures the correct planning of the required amount of materials, as well as a high level of electrical safety. Properly designed diagram greatly facilitates the selection of the types of equipment needed.

An electrical wiring plan is prepared taking into account the scale of the premises and the features of its layout.

Advice! Traditionally, for the preparation of such drawings, a single-line diagram is used, which allows display all network elements without cluttering the drawing with a large number of lines depicting connecting wires.

Guiding Documents

In order to unify the designations used in electrical circuits, back in Soviet times GOST 21.614-88 “Conventional graphic images of electrical equipment and wiring on plans. "

In accordance with this document, the simplest elements are used to designate all elements of the power supply network. geometric shapes that make it easy to apply, as well as identify an element on electrical circuit.

Strict requirements for the implementation of such drawings exclude confusion and a double interpretation of all symbols printed on the diagram, which is extremely important when performing installation work in the electrical network.

Designation of open installation elements

The simplest two-pole electrical outlet of an open installation without grounding contact is depicted on an electrical diagram in the form of a semicircle with a line drawn perpendicular to its convex part.

The designation of the dual outlet differs from the previous one by the presence of two parallel lines. The graphic symbol corresponding to a three-pole product is a semicircle, to the convex part of which there are three lines converging at one point and arranged in a fan.

To indicate a socket with a grounding pin, a horizontal line is added to its image, which is tangent to the top point of the semicircle.

Sockets for concealed wiring

Concealed wiring is the most common type of home electrical network. For its laying, devices are used that are built into the wall using special mounting boxes.

The only difference between the designation of such outlets from the above figure is the perpendicular, omitted from the middle of the straight segment to the center of the circle.

Devices with increased protection against dust and moisture

The considered outlets do not differ in a high level of protection against penetration of solid objects into their body, as well as moisture. Such products can be used indoors, where operating conditions preclude such effects. As for devices intended for installation in the open air or, for example, in bathrooms, according to accepted classification, their degree of protection should be lower than IP44 (where the first digit corresponds to the level of protection against dust, the second - from moisture).

Such outlets are indicated on the diagram in the form of a semicircle completely shaded in black. As in the previous case, bipolar and tripolar waterproof sockets are denoted by the corresponding number of segments adjacent to the convex part of the semicircle.

Circuit breakers

The circuit breaker is indicated in the form of a circle to which a line is drawn at an angle of 45 with an inclination to the right side, having at the end one, two or three perpendicular segments (depending on the number of keys of the image circuit breaker).

The image of the hidden installation switches is the same, only the segments at the end of the oblique line are drawn on both sides of it at the same distance.

Moisture-resistant products are indicated by a black circle.

It is worth paying attention to the image breakers, which resembles two conventional switches, mirrored from the center of one circle.

Outlet Blocks

Often, in terms of the home electrical network, it is necessary to provide for the installation of units that include a different number of the most common elements - sockets and switches.

The simplest unit, containing a two-pole outlet, and a one-button switch for concealed installation are depicted in in the form of a semicircle, from the center of which a perpendicular is drawn, as well as a line at an angle of 45, corresponding to a single-key switch.

Blocks containing a different number of sockets and switches are similarly applied to the circuit. For example, a flush-mounted unit, which includes a two-pole outlet, as well as single-key and two-key switches, has the designation:

Thus, the designation of elements on the electrical circuit is performed in such a way as to provide the greatest ease in its preparation and reading. It is worth remembering once the basic principles of constructing such schemes, so that in the future it is easy to use the plan of apartment electrical wiring of any complexity.