When you turn off the floor lamp on the cartridge two phases - is this normal?
The floor lamp is connected through a wired switch (into a phase wire break) to a power outlet. When changing the position of the plug, the neutral wire becomes phase, the floor lamp works, but after turning off (the switch) both contacts in the cartridge show the phase. Is that normal? If not, what is the possible reason?
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What indicator was measured? (maybe the indicator shows a tip). Did you try to measure the voltage on the cartridge with a tester?
I must say right away that I have knowledge in electrics at the level of school physics, so I don’t know what a “tip” is. The indicator is ordinary - a screwdriver. There is no tester. A floor lamp is a Chinese craft, which was remade as a stun gun (I did not find grounding on the case). The owner of the floor lamp asked to see why in the off state (but with the plug in the socket), pinch the metal parts of the floor lamp.
When the phase wire of the floor lamp power supply ruptures, disconnection occurs on the switch contacts, as a result of which, the potential does not pass beyond the rupture site. If the neutral wire is broken at the contact of the switch, the potential will remain on the entire line of the circuit to the place of disconnection, but on the reverse side of the switch, therefore, potential will be present on the contact of the floor lamp holder. The second contact of the cartridge (in the absence of an incandescent lamp) falls under the influence of the inductive field of the adjacent (phase) wire because of this, there is a voltage pickup in it and your pocket probe indicator shows the potential on it. If you are confused by this situation, I advise you to replace the single-pole floor lamp switch with a double-pole When two wires are disconnected at the switch, the potential will be absent on the floor lamp holder, regardless of how you plugged the plug into a power outlet.