Introductory machine disables the neighbors bedroom
A circuit breaker in the entrance switchboard turns off my apartment and two rooms at the neighbors. What is the reason and what is the reason?
In which GOST is there a decoding of UGO on electrical circuits?
Where can I find a transcript of graphic symbols in wiring projects? The interpretation of the UGO is given in GOST 2.709-89, as well as GOST 21.614.88.
What is the difference between EMF and voltage: a simple explanation on the example
The article discusses the definition of EMF and voltage, the main parameters of the current source and its internal resistance, and most importantly, the difference between the EMF and the voltage.
What protective grounding system to apply for the new high-voltage line?
In the village, a line was drawn with SIP wires in addition to the old VLEP on bare wires. I can not choose the grounding system TT or TN-C-S, what do you recommend?
The outlet that was not used burned out, after replacing it stinks burned
There was a cotton in the outlet that we do not use, after which the smell of burnt wires appeared. The outlet was replaced, but the smell remained. What is the reason and what to do?
GOST R 50571.5.56-2013: Low-voltage electrical installations. Selection and installation of electrical equipment. Security systems
The status of GOST R 50571.5.56-2013 for 2019. Download the PDF document. Electrical installations are low voltage. Selection and installation of electrical equipment. Security systems.
GOST R 50571.11-96: Electrical installations of buildings. Requirements for special EU. Bathrooms and showers
The status of GOST R 50571.11-96 for 2019. Electrical installations of buildings. Requirements for special electrical installations. Bathrooms and showers. Download GOST in PDF.
How does a capacitor motor work and why is it needed
What is a capacitor motor, what is its principle of operation. How to choose a capacitor to the engine. Connection diagram with reverse and without reverse.
Will the boiler consumption decrease if we switch from one phase to three phases?
A three-phase electric boiler is connected to a single-phase network, will the energy consumption decrease if it is connected to three phases?
Knocks the machine in the bathroom with a heavy load in the kitchen
When you turn on several appliances in the kitchen, the bathroom machine is knocked out. What could be the reason? In the electrical panel, each room is on a separate machine.
How to distribute wiring in a three-story house by floors?
There is no way to install an electrical panel for 3 floors. I want to put a shield on each floor. What is the best way to route cables to each floor? How to connect them to the meter?
Can I use the cable of the Kaluga cable plant?
I choose a cable for electrical wiring, I found the products of the Kaluga cable plant. Tell me if it is of high quality, can I buy or is it worth looking at something else?
Help connect an unknown collector motor
There is a brush motor with 4 wires. How to determine whether it is direct current or alternating current and how to connect it to a 220 volt network? I enclose the scheme.
When the cartridge is connected, the light in the next room disappears
When I connect the lamp holder in the hall, the light in the next room disappears. After turning off the cartridge with the lamp - the light appears. What could be the problem?
Why does the machine knock out sockets in the apartment?
The machine was knocked out, the repeated inclusion did not help, it again turned off. Replacement also did not help. We measured the resistance with a 2 MΩ multimeter, what could be the problem?
GOST R 50571.5.54-2013: Grounding devices, protective conductors and protective conductors for equipotential bonding
The status of GOST R 50571.5.54-2013 for 2019. Grounding devices, protective conductors and protective conductors for equipotential bonding. Download the document in PDF.
GOST R 50571.5.52-2011: Low-voltage electrical installations. Selection and installation of electrical equipment. Electrical wiring
The status of GOST R 50571.5.52-2011 for 2019. Electrical installations are low voltage. Selection and installation of electrical equipment. Electrical wiring. Download the document in PDF.
GOST R 50571.16-2007: Low-voltage electrical installations. Part 6. Tests
The status of GOST R 50571.16-2007 for 2019. Electrical installations are low voltage. Part 6. Tests. Download the PDF document on the our.electricianexp website.
GOST R 50571.15-97: Electrical installations of buildings. Selection and installation of electrical equipment. Electrical wiring
The status of GOST R 50571.15-97 for 2019. Electrical installations of buildings. Part 5. Selection and installation of electrical equipment. Chapter 52. Wiring. Download the document in PDF.
GOST R 50571-4-44-2011: Protection against voltage deviations and electromagnetic interference
The status of GOST R 50571-4-44-2011 for 2019. Electrical installations are low voltage. Security Requirements. Protection against voltage fluctuations and electromagnetic interference.
GOST 28249-93: Short circuits in electrical installations. Calculation methods in AC EA with voltage up to 1 kV
The status of GOST 28249-93 for 2019. Short circuits in electrical installations. Calculation methods in electrical installations of alternating current voltage up to 1 kV. Download PDF.
GOST R 50571.28-2006: Electrical installations of medical facilities
The status of GOST R 50571.28-2006 for 2019. Electrical installations of buildings. Requirements for special electrical installations. Electrical installations of medical facilities. Download PDF.
GOST R 50571.22-2000: Grounding of information processing equipment
The status of GOST R 50571.22-2000 for 2019. Electrical installations of buildings. Requirements for special electrical installations. Grounding of information processing equipment.
Is it possible to conduct wiring and an Internet cable in one cable channel?
Is it possible to lay together an Internet cable and a power line? Do I need to tin a wire with a multi-wire core to connect to an outlet?
