The Chinese 12-220 transducer produces a modulated sine wave. If you put a voltage regulator on the output, will this solve the problem with a pure sine wave?
We installed a new electric meter in the apartment, he began to wind 2 times more than the old one. We want to replace this new counter with another. Denied a replacement, what should I do?
Cracked tiles on the warm floor. Wouldn't he pull an electric shock now? Not the fact, of course, that the cable is damaged, it just might crack the tile. How to check the warm floor?
Can I connect an LED floodlight with the characteristics of 50w DC 20-39 (1500 ma) to the driver 70 w DC 30-55 w, output current 1800 ma? Will the spotlight fail?
Status GOST R 50571.1-93 for 2018. Electrical installations of buildings. The main provisions. What is replaced by this GOST. Here you can download GOST R 50571.1-93 for free.
GOST R IEC 536-94: Classification of electrical and electronic equipment by the method of protection against electric shock
Status GOST R IEC 536-94 for 2018. What replaced this document. On our website you can view or download for free GOST R IEC 536-94 in PDF format.
Having difficulty installing two EIKON modular calipers. When mounted in a socket, the caliper begins to twist when tightening the fixing ears. What to do?
Good afternoon! The light went out. Electricians changed their shields, I don’t know what to do. In old ones, I could turn it on myself.
The status of GOST 12.2.007.0-75 for 2018. Electrotechnical products. General safety requirements. On our site you can download this GOST for free in PDF.
The status of GOST R IEC 61140-2000 for 2018. What replaced this document, what is its current version. Download GOST R IEC 61140-2000 for free in PDF format.
You can view or download GOST 14209-85 in PDF format on our website. Document status for 2018. Transformers power oil general purpose.
What is the anode and cathode, how to determine them. A simple rule with which it is easy to remember where the anode and cathode of the LED, thyristor and other elements are.
Good afternoon! After plastering the walls, the spotlights began to blink, little time passed. They say that the plaster dries and stops. Is it so?
The grinding machine "Kraton BG 14-01" stopped working. The on / off button rang, there is voltage at the output. What can fail inside the machine?
How is lightning protection verification of buildings and structures performed. The methodology of the work, the necessary devices and the timing of testing lightning protection systems.
Can a phase at zero mean a wiring fault and how to check it? Zero in our apartment is common and the phase from the neighbors could come to me on the chandelier.
I opened the box in the old house, I need to hold two additional sockets. Change wiring no funds. How to find a power supply, how to connect two outlets to a box?
Is it possible to assemble sockets and lighting from one room for one 20A difavtomat? Lighting was carried out using a cable with a section of 1.5, sockets - 2.5 mm.kv.
The standard linear halogen lamp burned out. Bought at 300 watts. There is no designation of polarity, the lamp turns on only in one position. What is the reason?
He led a wire for the instantaneous water heater to the bathroom from the shield. It was necessary to connect the washing machine to the same wire. How to connect?
A three-key switch, it has 2 bulbs and an LED strip. When the LEDs turn off, the machine knocks out, tell me what to do and what is the reason?
When you turn on the antenna cable, an RCD is knocked out into the connector. If you disconnect the ground wire in the outlet, when the antenna is connected, the TV works, the RCD does not knock out.
The pumping station stopped working. He opened the switchgear cover at the station and found that both wires are live and phase and zero. What is the reason?
Please tell me the verification interval of the counters of this model? Energy meter counter CE6803V.