The choice of the machine on the washing machine
A modern house can not be imagined without a huge number of different household appliances that need to be connected to the network. But not every wiring is able to withstand a similar load. The buildings of the old fund were not designed for the use of such a volume of electronics, which is why accidents, voltage drops and other unpleasant situations arise. These problems in the electrical network can easily destroy the refrigerator, TV and even a washing machine. To prevent such accidents and ensure the protection of your equipment, you need to install the correct RCD device. What exactly - we consider in more detail.
Content
Separate washing machine machine
Providing a common home network for RCDs is a necessary measure for the modern world.But why put a separate machine on the washing machine? In the slang of specialists, every household device is called a consumer. Your washing machine acts as a very powerful consumer, creating a heavy load on the electrical grid. Considering all this, electricians recommend to conduct separate electrical wires for the machine, and to protect this circuit by putting a suitable RCD.
Consumers like a TV or laptop do not need this kind of protection. Working in normal mode, they practically do not exert a load on the network, spending a small amount of energy. Speaking about the washing machine, it is worth noting that it is often used in wet roomswhere the risk of closure is quite high. Protection of such a device requires special care. By running algorithms such as drying, spinning and rinsing, the device increases the load on the wires by one and a half times. Power surges can lead not only to damage the internal parts of the device, but also to fire as a result of the circuit.
New models with different functions may require even two machines.
Functioning and components of the RCD
What is the "protector" of household appliances made of? The standard machine consists of the following parts:
- transformer;
- protective case;
- chain breaking mechanism;
- sensor self test;
- electromagnetic cutoff device.
RCD operation begins when the wires have to be too strong tension. In such conditions, the device forcibly opens the circuit and de-energizes the wiring. In addition, the machine will work if a bare wire comes into contact with water or a person.
Often, a safety device saves not only equipment, but also human life.
In contrast to the obsolete fuses of past generations, the protective circuit breaker can be re-used. It is not necessary to replace it with a new one after each differential.
RCD and difavtomat
Today, the market for electrical appliances can provide a wide selection of a wide variety of automata. In fact, the classic UZO has long been outdated and can not protect wiring from all types of accidents. To ensure the protection of high-class, experts recommend to pay attention to such a device as difavtomat.
Difaftomat is an innovative device that combines the functions of a safety device and a fire breaker.
In the past, to ensure complete protection of wires, these devices had to be mounted sequentially, one after another. Difavtomat combined all their functions in one ergonomic case. The only disadvantage of this device is the high price, significantly striking the budget. Choosing and installing a difavtomat, you need to choose the appropriate device for your case. Experts advise to acquire 0.03 amp difavtomat.
How to pick up the RCD
Of course, before buying, the question immediately arises - which machine should be put on the washing machine? To answer it, we turn to the standard characteristics. Popular models of machines consume 2 kW, which exceeds the mark of 10A (read more about the power and power consumption of washing machines here). On this basis, the value of an electricity-disconnecting device or difavtomat should not exceed 10A, conventionally these parameters correspond to 16 amperes.
Do not under any circumstances overestimate the nominal values of the RCD, it will deprive the wiring protection.
Experts consider occupying one of the most important parameters of the machine leakage current. It is with him that the main interaction of the RCD occurs. For recently conducted wiring, an automat with a leakage current of 10mA is perfect. In other words, the difference between the currents in the phase and neutral conductor should not be less than 10 mA, otherwise the device will not break the circuit. If the wiring is used for many years in a row, it is better to use 30 mA RCD. This will help avoid false positives.
A rather significant factor is manufacturing firm. On this basis, the sensors are divided into expensive - Legrand, ABB and cheap - IEC. These firms are the most popular and authoritative in the consumer electronics market. Do not try to save: of course, the Chinese equivalent will cost even cheaper, but it can never guarantee true European quality. The wrong choice of the RCD can lead to the fact that you will constantly knock out plugs when turning on the machine.
RCD is designed exclusively for a three-wire network. If your home is only equipped with a two-wire network, you'll have to do grounding or equip a protective conductor with a circuit connected to the typewriter.
Independent installation of UZO
The process of installing a safety device in the bathroom chain is very simple. To do this, pull the wire VVG 3x2.5 directly from the distribution panel. RCD with a special protective housing can be installed directly next to moisture proof outlet. Follow the instructions below:
- Take the indicator and determine the position of the phase and zero of the wire.
- Connect them directly to the RCD.
- Output the phase and neutral wire through the device case and connect to a moisture-proof outlet.
This is the easiest way to connect a security sensor. If in addition to the washing machine, there will be several more consumers on the network, install additional safety shutdown device. This measure is necessary to ensure the smooth operation of devices, even if several consumers fail.
Acquisition of RCDs can save your devices from critical damage and failure of control nodes. Network drops can cause the control unit of the machine to ignite, a critical pump failure, drain system malfunction and other damages. In addition, the RCD can protect your health: without installing this device, the machine can electric shock. Do not try to save on protective equipment, otherwise you will have to spend money on a new washing machine. Installing the sensor will take no more than half an hour, and even if you do not understand the electrician, you can contact a specialist.