An important issue, but one that few people fully understand is the question of the value of electrical voltage. It is essential to know what electrical voltage (popularly known as voltage), that particular device supports, what voltage is offered at each outlet in that location. All this in order to avoid damage to the devices, using them safely and mainly, avoiding serious accidents related to electricity.
As far as tension is concerned, several doubts are very common and you have certainly heard some of the ones we will quote here. Is the voltage of 127 equal to 220 volts? Is the 220-volt voltage more worth it? Can I connect a 127v to 220v appliance? 127 / 220v is bivolt? If I connect a 110v to 220v appliance, will it burn?
To answer these questions we will understand these concepts better. The energy that activates the charges can be supplied at several levels, in Brazil, the most common are 127 or 220 volts. You are probably wondering right now, but what about the 110-volt voltage? The answer to this question is simple, this voltage is gradually being abandoned by the concessionaires, being replaced by the 127 volt one.
Which voltage is better, 127 or 220?
There is no such tension, better or worse, for the selection of this tension many characteristics are taken into account, in terms of savings in the electricity bill there is no difference.
As previously stated, this decision is directly related to the power of the equipment, that is, the electric current necessary for it to work is what will determine which is the best. Appliances running at high power require a higher voltage.
It is common to notice that companies, establishments and shopping malls, for example, use 220 volts, this is due to the high demand for power, demand that is perhaps not so high in most homes.
Regardless of the chosen voltage, several actions must be taken to increase the safety of this installation. It is very important, for example, to install circuit breakers, they are protection devices that have the role of acting in case any current exceeds the allowed nominal value.
These devices act to prevent damage such as short circuits or fault currents capable of causing electric shocks, this second case can happen with devices that have an insulation failure.
What happens if I connect a 127 appliance to a 220-volt voltage?
The chances of burning this 127 V electrical appliance plugged into a 220 V outlet is enormous. Therefore, before connecting any appliance, please check the voltage of that outlet, otherwise you may have totally undesired damage.
What happens if I connect a 220 appliance to a 127-volt voltage?
In the opposite case of the aforementioned, when we connect a 220-volt device to an outlet with a voltage of 127 volts, the chance of no damage occurring is very great, this is because the voltage offered is not enough for it to work.
In order not to take these risks, our tip is that whenever possible you choose the devices classified as bivolt, that is, they work with both a voltage of 127 volts and a voltage of 220 volts.
Electrical accidents are serious and common, but they can be easily avoided if you are careful and use the devices conscientiously. If you notice anything different, contact an electrical professional, he has the necessary training to analyze the situation and guide you in case of possible risks. Prevention is always the best way.
To conclude our tip goes to those who are building, evaluate well the devices you want to use, especially if they are high demand devices. If you do the installation and only think about it later, you will probably have extra expenses and this is undesirable.