Marks of aluminum wires and cables and their applications
Brands of aluminum wires and cables. Cross-sections of conductors and their scope. Advantages and disadvantages of a cable or wire made of aluminum.
Connecting the ground wire to the electric boiler
I connect the electric boiler Evan Warmos 5 kW, a three-wire cable. I connect the phase and zero to 2 25A machines, and how to lead the third wire (grounding) to the electric boiler?
Why does the plug from the extension cord in the outlet heat up when the heater is turned on?
When the appliances are working, the place next to the extension cord plug is heated, and there is an unpleasant smell throughout the house. What is the cause of this phenomenon and how to fix the situation?
Characteristics and scope of the wire PV-4
Technical characteristics of the PV-4 wire. Scope of the conductor and section table. Which manufacturers make flexible wire PV-4.
What to do if an RCD trips without a load
In the apartment, an RCD tripped without load. An electrician came, carried out diagnostics, reconnected something, now the knife switches in the shield began to be cut down. What to do?
Which voltage relay is better: three-phase or three single-phase?
Hello, please tell me which voltage relay is better to install: three-phase or three single-phase for each phase, if three phases go to the apartment?
How to change a three-key switch to a two-key to remove one lighting line?
Would it be safe to simply change the three-gang switch to a two-gang switch, and simply wire the contacts of the wire going into the box of an unnecessary line?
Using a DC circuit breaker in an apartment
Good afternoon! Is it possible to use DC machines in the apartment? What problems can you face?
What is the danger of grounding a pipeline in an apartment building?
How is it possible to get an electric shock from a neighbor in a riser during punching, such as a washing machine, if the riser of a water pipe goes far into the ground?
Turning off the circuit breaker after a short rainfall
Knocks the circuit breaker when the load is turned on. The day before there was a short rainfall. Can the machine in the shield turn off due to a shower?
Generator power to power an electric heater in a sauna (power 3,5 kW)
What power should I choose a mobile generator to power an electric heater in a 3.5 kW sauna? Will it be possible to use a home network for the same purpose?
Shorted the wire in the oil heater - how to repair?
My heater was short-circuited, namely a wire suitable for the thermostat from a trip relay. Help repair what needs to be done?
What is the transparent pointer on the transformer TMGF 1000/10 / 0.4?
Tell me on the transformer TMGF 1000/10 / 0.4. What is the transparent pointer on top of it, what color should it be during normal operation of the transformer?
What to do if the wires from the pole to the house are broken?
At the dacha there was a wind and broke one of the two wires leading into the house. Aluminum wire, now hanging on the same insulation. How can you reliably connect them?
Is an armored cable suitable for laying wiring underground if it is manufactured according to TU?
I bought an armored cable for laying underground in the country. Is it possible to use this in an HDPE pipe. It bothers him that he is TU, not GOST. Will there be any problems?
The circuit breaker is on, but there is no light - what should I do?
We closed the phase and zero from the outlet. Knocked out machines from the home guard. Turn on, still no voltage. The apartment building. What to do?
