To provide lamps and equipment on the site with electricity, a separate branch is laid from the house along the street. However, not every wire is suitable for this, due to the specific factors affecting it - heat, cold, wind, precipitation, sunlight, soil pressure. Therefore, we will consider which cable to use for wiring outdoors through the air and in the ground, what are its features and the requirements for it, what types there are, what markings are applied to them, as well as what are the main options and rules for their installation.
Universal NYY cable for outdoor wiring Source alicdn.com
Important nuances when laying country wiring
When planning the installation of electrical conductors in a suburban area, you should decide on the scope of work. A full replacement or restoration of the existing network can be carried out. In any case, it is recommended to follow the following rules:
- Distribution boxes, electricity meter, switches and sockets should be located in easily accessible places.
- Switches must be installed so that they are not blocked when the door leaf is opened. Switches are installed at a height ranging from 60 to 150 cm.
- Sockets are installed at a sufficient distance from the water supply system and heating devices at a height of at least 50 cm from the floor.
- Power wires to sockets are supplied from bottom to top, and to switches - from top to bottom.
- Direct connections of copper and aluminum conductors are not allowed.
- It is necessary to exclude the location of sockets in rooms with high humidity (bathrooms and restrooms);
- The wiring must be laid according to the prepared diagram, which is recommended to be saved.
Placing distribution boxes in a wooden house
All work is carried out in compliance with safety precautions.
Emergency lighting cable
Emergency lighting is required to be installed in each crowded place, be it a production or public site, building or structure, for example, a factory, stadium, hospital, school or shopping center. The purpose of this type of lighting is to ensure safety when the main lighting network is turned off, including indicating escape routes and highlighting high-risk areas.
The requirements for cable lines for emergency lighting are more stringent, which is due to the need to maintain the functionality of the lighting network for the entire time required to evacuate people (at least 15 minutes). The set of rules SP 6.13130.2009 clearly defines that cables for such systems must be fire-resistant, emit a minimum of harmful products during combustion or do not contain halogens, which corresponds to the marking “ng-FRLS” or “ng-FRHF”.
We recommend that you read the article “FRLS fire-resistant cable”
The installation of the cable for emergency lighting is carried out separately from other wires; when laid in one tray, it is necessary to have a partition or non-flammable corrugated pipe. When laying cable lines for emergency lighting networks, the following brands of cable are most often used: VVGng-FRLS, VVGEng-FRLS, PvVng-FRLS, PvBVng-FRLS, GERDA-KVKng-FRLS, GERDA-KVng-FRLS, PvPng-FRHF, PPGng-FRHF , PPGEng-FRHF, PvPGng-FRHF, PvPGEng-FRHF.
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Problems caused by the location of the summer cottage
Most holiday villages are located outside the city. At the same time, old power lines are usually used to power them. They are not designed to withstand large flows of electrical energy that arise due to the use of a variety of household appliances. This is accompanied by periodic interruptions in electrical networks, which can lead to failure of equipment installed at the dacha. To eliminate this problem, you will need to use highly sensitive circuit breakers and voltage stabilizers.
Voltage stabilizer for a private home
The condition of the wiring of a summer cottage is strongly influenced by the frequency of stay in it. This fact must be taken into account when choosing a wiring method, since without heating in winter, moisture will accumulate inside the room. Oxidation of the contact connections will gradually occur, which will lead to a short circuit, and as a result, the need for restoration work.
Important! Taking into account the fact that the dacha plot is private property, the owners must take care of the installation of the grounding loop and lightning rod themselves.
Wago and humidity
However, there is one BUT - these vago terminals, even from original suppliers from Germany, are still a product for indoor use. Moreover, dry rooms.
In humid environments (bathrooms, baths, saunas) they are not recommended for electrical wiring.
And even more so, such clamps cannot be used to connect wires on the street. And this need arises very often:
- installation of street lighting
Connecting the cable to lamps inside poles via Wago with paste still does not provide 100% contact protection.
- decorating the facade of the house with garlands
- outdoor connection of power circuits for alarms, video surveillance, intercom, electric gate lock
In all these cases, it is often necessary to install a coupling or something similar. For example, the crooked legs of a dead chicken, familiar to all electricians.
