The status of GOST R IEC 61386.24-2014 for 2019. Pipe systems for laying cables. Part 24. Pipe systems for laying in the ground. Download the document in PDF.
Hello! Tell me, how to determine which of the machines in the drive-in switchboard de-energizes my apartment? I'm afraid to disconnect the apartment of the neighbors.
Hello! I change the wiring in my apartment, collect the electrical panel. I want to consult about the correctness of the layout, scheme and layout of machines and RCDs.
When you turn on the first key, the spotlights turn on, when you turn on the second, 2 sconces. But the second key only works when the first one is on.
What is an LED lamp, how is it arranged and what is the principle of operation of this light source. The main types of LED lamps and their scope.
I want to purchase equipment from the USA, the instructions indicate the range of supply voltages of 100-250V. Can it be connected without a transformer to our mains?
The status of GOST R 53073-2008 for 2019. High pressure sodium lamps. Operational requirements. Download GOST R 53073-2008 in PDF format.
The status of GOST R 52373-2005 for 2019. Self-supporting wires insulated and protected for overhead power lines. General specifications. Download PDF.
The status of GOST 50571.1-2009 for 2019. Electrical installations are low voltage. Part 1. General provisions, assessment of general characteristics, terms and definitions.
The status of GOST 32126.1-2013 for 2019. Boxes and cases for electrical apparatus. Part 1. General requirements. Download the document in PDF format.
GOST 26824-2010 status for 2019. Buildings and constructions. Methods for measuring brightness. Download GOST 26824-2010 in PDF format on the our.electricianexp website.
How to connect signal lamps (type LS-47) in the electrical panel circuit and can they be connected to each group? The sequence of connecting the warning lights in the shield.
Is it safe to make such a contact without an electrical plug? Attaching photo. Measures were forced because, after the closure, the cork burned out.
How to connect a private house to the mains? House in a remote village, what needs to be put at the entrance and where to go? Who can carry out wiring?
A new development for protection against overvoltage losses in the network is the ONS amplitude limiter. Limiter circuit and operation features. Test know-how.
Please tell me what is the reason for the flickering of the PC monitor of the video surveillance system after installing the LED lamps for illuminating the perimeter of the building at night?
It is necessary to connect the wires VVG 2.5 mm² with VGG 1.5 mm², and then with the ball screw 0.75 mm². Is it possible to do this with twisting and soldering? Is such a solution reliable?
Blown power supply for the phone. Parameters of the old unit: 5.5v 500mA. You can replace it with a 5.7v 800mA adapter. Is it dangerous that more voltage and current?
How to choose a cable for connecting a business building to a private house? I will lay underground in the construction of 2 boilers, a pumping station and an electric stove.
The APC PM5-RS surge protector has a ground indicator. There is no grounding in the power outlet, when connected to the TV filter, this indicator lights up, Why?
Water is shocking, electricians from the Criminal Code did not find any problems, they said that there might be a leak from a neighbor from below. What can be done to solve the problem?
GOST 23274-84 status for 2019. Mobile buildings (inventory). Electrical installations. General specifications. Download GOST 23274-84 in PDF format.
GOST 22483-77 status for 2019, with which it is replaced. Conductors made of copper and aluminum for cables, wires and cords. Main parameters. Technical requirements.
GOST 16442-80 status for 2019. Power cables with plastic insulation. Technical conditions Download GOST in PDF format on the our.electricianexp website.
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How to conduct electrical wiring in an apartment - all stages of electrical installation