Tips for caring for household electrical appliances and wiring. Scheme, description

ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
Free library / Electrician

Tips for caring for household electrical appliances and wiring. Encyclopedia of radio electronics and electrical engineering

Free technical library

Encyclopedia of radio electronics and electrical engineering / Electrician's Handbook

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1. An unexpected blackout in the apartment is not yet a reason to go into the common electrical panel in search of the cause. First, it is better to make sure that the fault is not hidden in the internal wiring. The easiest way is to disturb your neighbors and inquire about their electricity availability. If the problem is common, then the fault lies in the external wiring, and the only thing that can be done is to call a specialist from the DEZ.

If your neighbors have complete order with their electricity, you should start looking for problems in the internal electrical wiring.

2. Often, the operation of circuit breakers or fuses occurs not due to a short circuit, but due to overload of the home power line (that is, the total power of all devices connected to the network is very high); in other words, the current required to power the switched-on devices is greater than that for which the fuses are designed. Therefore, when the fuses trip, you don’t need to immediately run in search of a short circuit; it’s wiser to do the calculations.

Let's assume that the total power of simultaneously operating devices is 2500 W. If the voltage in the network is 220 V, then the current required to power the devices is 2500: 220 = 11,4 A. Therefore, if the fuses on the electric meter or panel are designed for 10 A, then the issue is not a short circuit at all - fuses should be installed, designed for high current.

But when equipping a meter or panel with fuses designed for a current greater than the electrical wiring allows, you can get rid of flying plugs, but it is unlikely that you will be able to get rid of failed electrical wiring (due to wires burning out).

3. Do not rush to repair complex household electrical appliances yourself if you are not sure that everything will work out. After all, it may well be that the result of repair experiments will be a completely unusable device and a handful of extra spare parts remaining after assembly. It is more advisable to entrust the repair of complex equipment to specialists.

Author: Korshevr N.G.

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