Why does an RCD work when the electric stove is turned on?
There are 4 double sockets in the kitchen area. From them to the BRA lamp (with a separate switch) and to a simple exhaust fan (with a separate switch). A fridge, small TV, electric stove, kettle will be connected. A three-core cable with grounding with a cross section of six squares each core is laid on the shield.
On the machines in the shield, jumpers are installed with a cross section of four squares. A three-core cable with a section of two and a half squares with a grounding conductor departs from the machines to the sockets.
All consumers in the kitchen area are also disabled in the house itself. When the electric stove is turned on (it is one burner) at full power (2.5 kW), after 15-20 seconds, the RCD is turned off, but not the machine responsible for the kitchen area. Question: what could be? The tile does not have an earthing unit on the plug, that is, it does not ground. When turned on not at full power, everything works as usual. And another question: why the machine responsible for the kitchen area does not work? Thank.
Maybe there is a problem in the tile, for example, the heating elements have broken (or what kind of heating elements are there) and they give a leak to the case - why does the RCD work? Or wiring inside an electric stove. But it does not work when not at full capacity - it may be due to less heating, for example. If possible, try connecting another consumer of the same capacity. What should the machine disconnect from if there is a leak on the tile? When the RCD trips, the machine should not turn off in a normal situation. Also, it is impossible to exclude the option of a faulty RCD.
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Hello Alexey. I will answer your questions in order. The earthing plug on the plug is not. Grounding goes directly along the entire circuit from the electrical panel. The shield is located on the street on a pillar. The ground loop is next to the pole. Electric stove one-burner type of hob. I will try to check for proper wiring in the tile, try to connect a similar consumer. And the most extreme case is to replace the RCD. If everything works out in eliminating this problem, then I will not bother you. And if not, with your permission, I will contact you again. Thank you for your help.