Starting the engine on one input and working on another
I want to start a 1.5 kW asynchronous single-phase motor from one 220 V line, and after starting switch to another and leave it to work on this line.
Standards for the installation of backup machines in an electrical panel
Hello! Are there any regulatory documents prescribing the requirements for the installation of redundant circuit breakers in switchboards?
How to supply power to a rotating lamp?
It is required to supply power to a rotating lamp, the lamps in which will be switched on by a time relay. The wire will tighten and break from rotation, how best to do?
How to connect the washing machine and water heater to electricity?
Can I connect a washing machine (2 kW) and a boiler (also 2 kW) on one line? Or lay two lines from different difavtomatov?
What is the best way to make grounding in a private house?
Zero under the support is grounded, in the shield on it is installed an automatic machine and RCD. 4 wires come to me (3 phases and zero), how should I make grounding in this case?
What is a rotor and stator in an electric motor
The rotor and stator are the two main parts of any electric motor and generator. What is it, what are they and what are they for, we considered in the article.
Why does a machine knock out after mounting profiles for drywall?
It knocks out an outlet machine I think it was punched with a self-tapping screw. When the indicator screwdriver touches the profile, the frame lights up. Does this indicate damage or not?
Which grounding system should I choose TN-C, TN-C-S or TT?
I change the wiring in the house and I can not determine the grounding system. I’m afraid to do TN-C-S, because VLEP is made of bare aluminum and is not sure of its reliability.
How to connect a voltage relay with a contactor?
I am collecting ASU for a summer residence, I bought a voltage relay and realized that I needed a contactor, because the relay is weak. Which to choose? The load will be up to 15 kW.
Will the counter work if zero is mixed up between apartments?
The neighbors noticed increased electricity consumption, because incorrectly connected sockets. Can consumption increase if zero is also confused?
What RCD to choose for a private house with an allocated power of 30 kW?
He increased the allocated power from 15 to 30 kW, they said to replace the input circuit breaker from 25A to 50A. What is the RCD set now? It was 25A 30 mA.
Can I connect a 12V tape to a 10V power supply?
I want to connect an LED strip with a nominal voltage of 12V, but there is only a 10V power supply.Can I connect to it? Is it safe?
What voltage stabilizer to choose for a 1450 W device?
Hello! My equipment failed after a power surge. I want to buy a stabilizer for her. What power stabilizer is needed for a 1450 W device?
Scheme for replacing wiring in a private house
We change the wiring in a private house. We drew a diagram for half the house. Tell me, please, is everything right? Maybe something superfluous? Thanks in advance!
Is it possible to connect a combi cooker in an old house?
Hello, tell me whether it is possible to put a gas stove with an electric oven. The old house has gas stoves with a gas oven. Corks will not knock out?
Connection of the communication cabinet to the electrical networks of the apartment building
In TU they said to connect a cabinet with equipment on the technical floor to the ASU, and it is in the basement. Laying on the riser is not possible, what should I do?
How to make the transition from SIP to aluminum cable in the house
Electricians, when replacing input cables along the street, connected the cables from the houses to the wire from the support using twisting. Is this allowed? How reliable and safe?
Use of a three-core cable in wiring without grounding
When replacing the wiring, I want to lay a 3-core cable, but grounding will be organized during the reconstruction of the house after 6 years. Is it possible to do this or not?
Non-standard lamp switching circuit from a two-key switch
Hello, In the kitchen there are 10 light bulbs, how to make sure that when you press the first key, 6 light bulbs are on, and the second second key is also pressed 6 lights.
What are the types of electric motors and how do they differ
What types of electric motors are direct and alternating current, what are their differences. The classification of electric motors and their features are described in the article.
Why is the bath and other appliances shocking after flooding the house?
In a private house, almost all appliances, as well as sinks and a bathtub, started to shock. Last year, the first floor was flooded. There is grounding. There are RCDs at 16 Amps.
Should the cable cross-section be the same throughout the wiring?
From the counter to the distribution box, I laid 4 square meters. mm Out of it - 1.5 sq. mm for lighting and 2.5 square meters. mm to sockets. What should be the cross-section of the cable for wiring?
Is it possible to operate wiring in an old country house after 13 years of inactivity?
The country house was abandoned for 13 years. Electricity held. There is an old counter. How dangerous is it to use the old wiring and meter, is this temporarily permissible?
Which dimmer to choose for controlling a chandelier with LED lamps?
We want to hang a chandelier on 21 lamps. In this case, we will use LED lamps. Which dimmer and which lamps are needed?
