What are non-disconnect lines in the shield and why are they needed. A circuit of a non-disconnectable line in a shield with an RCD, a voltage relay, a starter and other devices.
If the phase of the first luminaire is connected to the phase of the second, we do not connect zeros, can it be possible to turn both luminaires on with the left or right switches at once?
How can I connect a massager without a battery from the adapter? Connect to the terminals where the battery was? Connecting to the standard jack, it does not work.
In the morning the light went out, although at 3 nights it was still. Only disappeared in my apartment, everything works in other apartments, what can it be? Automatic machines are included.
What are the most durable, high-quality and reliable materials (cables and all automation) for installation in the panel of a wooden house? Verified companies and manufacturers?
A three-wire wire is suitable for the two-key chandelier switch: two phases (top) and a voltage-free core (bottom). Is this a standard wiring?
The question is about the correctness of the shield assembly scheme. Basically - denominations of RCD and difavtomatov. A shield is planned for 24 modules. There will be no powerful equipment in the apartment.
What three-pole circuit breaker is installed on an aluminum wire 3 * 10 + 6mm with a three-phase 380V circuit?
When I take ATM counter data from my counter, I have a difference. Why, if nothing is connected to the mains in the room?
What is an inductor, what is its principle of operation and purpose. The main types and characteristics of coils, as well as marking options.
How to connect two wires SIP-4 2x16, without using MJPB sleeves? The length of the wire is not enough, I had to pull the old wire from the house and a piece of a new one from the transmission line support.
I decided to assemble LED dimensions on the headlights of a car.When connected, 50 Ohm resistors and 12 V LEDs start to get very hot. What could be the reason?
What is UZM-50C, what are the characteristics and functions of this device. Connection diagram of UZM-50Ts in a single-phase and three-phase network. User manual.
Why are high-voltage disconnectors needed, how are they designed and where are they used. Classification of high voltage disconnectors. How to do the switch.
Good afternoon! Is it permissible, from the point of view of Fire safety, to place the switchboards in the built-in cabinet? Thank.
What are the faults of voltage stabilizers and the causes of their occurrence. What to do if the stabilizer does not turn on, buzzes, does not stabilize the voltage.
Overview of modern methods of transmitting meter readings. Rules for transmitting testimonies via the Internet, telephone and bank terminal. Who should do this.
Is it necessary to seal the input machines standing up to the meter or is it enough to seal only the meter itself?
The electric motor circuit is the control part of the circuit and power. Why is it more expedient to apply alternating current to the power part, and direct current to the control one?
The employees of the RES came and said that the connection of the electric meter was wrong! It is necessary to redo it, otherwise the meter will not be sealed. Why is the connection wrong?
Used the earpiece. Is it possible to get an electric shock from the wire on the neck, felt a sharp numbness in the neck at the time of use, or is it excluded?
An iron hose goes from pipe to plate. And if this hose touches the iron part of the dishwasher, protection is triggered. Will buying dielectric couplings solve the problem?
It was decided to connect the lamp to the wire to connect the air conditioner. The question was, how to make the light switch?
What is the correct position of the light switch when turning on and off. How to set the switches correctly and whether there are current standards in this regard.