SN 541-82: Instructions for the design of outdoor lighting
Status CH 541-82 for 2019. Instructions for the design of outdoor lighting for cities, towns and rural settlements. Download the document in PDF.
SNiP 3.05.06-85: Electrical devices
Status SNiP 3.05.06-85 for 2019, updated version of the document. Electrical devices. Download SNiP in PDF format on the electro.tomathouse website.
SNiP 23-05-95: Natural and artificial lighting
Status SNiP 23-05-95 for 2019, the current version of the document. Natural and artificial lighting. Download the PDF document on the electro.tomathouse website.
Final check of the electrical panel and house wiring diagrams
Please check the correct selection of the values of the machines and RCDs for the electrical panel of the village house. And tell me which denominations to choose where they are not on the diagram.
What should I do if the engine starts to turn in the opposite direction after getting wet?
The Grundfors sewage pump, after getting wet and drying, began to turn in the opposite direction. Why could this happen? Maybe it's a capacitor?
What is a synchronous motor and where is it used
The device, the principle of operation and purpose of the synchronous motor. What are the types of synchronous machines and where are they used. Pros and cons of synchronous motors.
How to choose the cross-section of the input cable to a private house of 15 kW?
What section of the input cable should I choose for the allocated power of 15 kW, the input machine for 32A - 10 or 16 mm² of copper? I bought a cheap 4x16 cable, is it worth it to change?
Why did the voltage drawdown in production begin?
Voltage subsidence up to 345 volts began, is it a matter of a supply transformer and circuits after it, or are there problems on the supply line? How to determine?
SP 6.13130.2013: Fire protection systems. Electrical equipment. Fire safety requirements
Joint venture status 6.13130.2013 for 2019. Fire protection systems. Electrical equipment. Fire safety requirements. Download the rulebook in PDF format.
Why is the machine knocked out in the refrigerator at night?
Hello! The machine knocks on kitchen outlets, except for the refrigerator nothing works, it happens only at night. What could be the problem?
Which cable to choose for laying on the floor in the corrugation?
Hello! What to choose for laying the cable on the floor in the screed in the corrugation: VVGNG-LS (Kolchugino) or foreign NHXMH-O / -J? Which is better and will work longer?
How to connect an unknown brushless motor?
How to connect the electric motor from the pump without marking and any data? Three wires of the same color stick out, which ones to connect to?
Permissible branch distance from support to entry
Hello, the distance to the support is 40 meters, is it possible to make a branch to the input of such a length without intermediate supports? What documents describe the requirements?
Do I need to change the old electricity meter to a new one in the apartment?
We moved to an apartment, and in the electrical panel there is an old meter. Neighbors are advised to change and scare a fine. Do I need to do this, and if necessary, where to go?
Can I connect a 3-wire electric cable instead of a 4-wire cable?
When connecting the hob, is it possible to use not 3 wire wire, but 4 wire with the same cross section or large? If not, which cable to choose?
Why are the housings and socles of energy-saving lamps heated?
Is it possible to connect 6 energy-saving lamps in parallel? Why is their case and cap very hot? Help find the problem.
SP 23-102-2003: Natural lighting for residential and public buildings
The status of the joint venture is 23-102-2003 for 2019. Natural lighting for residential and public buildings. Download the rulebook for free in PDF format.
SP 256.1325800.2016: Electrical installations of residential and public buildings. Rules for design and installation
Joint venture status 256.1325800.2016 for 2019. Electrical installations of residential and public buildings. Rules for design and installation. Download the rulebook in PDF format.
Consultation on the power scheme of a private house
Hello! I ask for help in checking the scheme of electrical panels for a private house. I enclose the scheme. Tell me, I chose the right machines, do I need an RCD for lighting?
Why does the chandelier click on and off?
During operation and in the off state, a single, but distinct click from the chandelier may suddenly be heard. What could be the reason?
Can I connect an induction cooker to a conventional outlet?
Do we need to connect the hob to pull an additional cable from the shield or can we connect from a conventional outlet if there is a 2.5 mm cable?
Where are the color temperature requirements for LED lamps described?
Lamps are installed, LED lamps in them with a color temperature of 4000K and 6500K. Is there any GOST that the lamps should be of the same color temperature?
How to remove residual voltage from the cable?
There is a procedure for checking the integrity of the cable core. When the load is disconnected from the core, the residual voltage on it is 300V. How to remove it quickly?
What to put in the switchboard of a village house instead of traffic jams and old machines?
What protection devices should be put in a three-phase electrical panel in a village house? Attaching photo. Power requirement no more than 8 kW
